It lasted 1100 miles. From China. Broke at the ball bearing shaft race. You could see the fault in the metal. I had just put it on when I was reminded about the ball bearing pumps. Thought that I could change it when I got home. The fan didn't damage the radiator. But bent the crank, and water pump pulleys. And now need a 403 fan shroud. Just West of Santa Rosa NM. Bob Dunahugh 78 Royale
Engine water pump shaft broke
- Thread starter Bob Dunahugh
- Start date
Bob,
JimK usually brings a split fan shroud to the Rally.
Gary Kosier
77PB w/500Cad
Newark, Ohio
--------------------------------------------------
From: "Bob Dunahugh"
Sent: Tuesday, April 03, 2018 1:45 PM
To:
Subject: [GMCnet] Engine water pump shaft broke
> It lasted 1100 miles. From China. Broke at the ball bearing shaft race.
> You could see the fault in the metal. I had just put it on when I was
> reminded about the ball bearing pumps. Thought that I could change it when
> I got home. The fan didn't damage the radiator. But bent the crank, and
> water pump pulleys. And now need a 403 fan shroud. Just West of Santa
> Rosa NM. Bob Dunahugh 78 Royale
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
JimK usually brings a split fan shroud to the Rally.
Gary Kosier
77PB w/500Cad
Newark, Ohio
--------------------------------------------------
From: "Bob Dunahugh"
Sent: Tuesday, April 03, 2018 1:45 PM
To:
Subject: [GMCnet] Engine water pump shaft broke
> It lasted 1100 miles. From China. Broke at the ball bearing shaft race.
> You could see the fault in the metal. I had just put it on when I was
> reminded about the ball bearing pumps. Thought that I could change it when
> I got home. The fan didn't damage the radiator. But bent the crank, and
> water pump pulleys. And now need a 403 fan shroud. Just West of Santa
> Rosa NM. Bob Dunahugh 78 Royale
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
There is a whale of a lot of stresses on the water pump shaft on the OLDS.
Alternator, water pump, air conditioner, power steering pump, fan clutch,
fan. I marvel at how long they last in stock form, let alone with
additional stresses that they were not specifically engineered to handle.
We now have some evidence to compile data from. One failure may be just
that: one failure. Or, perhaps a harbinger of things to come. Experience
from here on out will tell us. I will watch and learn, and hopefully we can
glean something we can use to solve the poor quality of fluid drive fan
clutches.
Jim Hupy
> Bob,
>
> JimK usually brings a split fan shroud to the Rally.
>
> Gary Kosier
> 77PB w/500Cad
> Newark, Ohio
>
> --------------------------------------------------
> From: "Bob Dunahugh"
> Sent: Tuesday, April 03, 2018 1:45 PM
> To:
> Subject: [GMCnet] Engine water pump shaft broke
>
> > It lasted 1100 miles. From China. Broke at the ball bearing shaft race.
> > You could see the fault in the metal. I had just put it on when I was
> > reminded about the ball bearing pumps. Thought that I could change it
> when
> > I got home. The fan didn't damage the radiator. But bent the crank, and
> > water pump pulleys. And now need a 403 fan shroud. Just West of Santa
> > Rosa NM. Bob Dunahugh 78 Royale
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
Alternator, water pump, air conditioner, power steering pump, fan clutch,
fan. I marvel at how long they last in stock form, let alone with
additional stresses that they were not specifically engineered to handle.
We now have some evidence to compile data from. One failure may be just
that: one failure. Or, perhaps a harbinger of things to come. Experience
from here on out will tell us. I will watch and learn, and hopefully we can
glean something we can use to solve the poor quality of fluid drive fan
clutches.
Jim Hupy
> Bob,
>
> JimK usually brings a split fan shroud to the Rally.
>
> Gary Kosier
> 77PB w/500Cad
> Newark, Ohio
>
> --------------------------------------------------
> From: "Bob Dunahugh"
> Sent: Tuesday, April 03, 2018 1:45 PM
> To:
> Subject: [GMCnet] Engine water pump shaft broke
>
> > It lasted 1100 miles. From China. Broke at the ball bearing shaft race.
> > You could see the fault in the metal. I had just put it on when I was
> > reminded about the ball bearing pumps. Thought that I could change it
> when
> > I got home. The fan didn't damage the radiator. But bent the crank, and
> > water pump pulleys. And now need a 403 fan shroud. Just West of Santa
> > Rosa NM. Bob Dunahugh 78 Royale
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
Uh, Jim, his coach has a 'fluid drive' clutch operating the fan. It opens the fluid valve electrically rather than with a bimetal. If you read Bob's
analysis, the bad metal is visible. And, add one to the tally, mine broke going N on 85. Using a stock fan and OEM clutch.
--johnny
--
76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
"I forgive them all, save those who hurt the dogs. They must answer to me in hell" - ol Andy, paraphrased
analysis, the bad metal is visible. And, add one to the tally, mine broke going N on 85. Using a stock fan and OEM clutch.
--johnny
--
76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
"I forgive them all, save those who hurt the dogs. They must answer to me in hell" - ol Andy, paraphrased
Don't think those shafts break by turning, but by rapid loading and
unloading of torsional loads like standing wave from belts. Lots of stuff
going on up there.
Jim Hupy
On Tue, Apr 3, 2018, 12:30 PM Johnny Bridges via Gmclist <
> Uh, Jim, his coach has a 'fluid drive' clutch operating the fan. It opens
> the fluid valve electrically rather than with a bimetal. If you read Bob's
> analysis, the bad metal is visible. And, add one to the tally, mine broke
> going N on 85. Using a stock fan and OEM clutch.
>
> --johnny
> --
> 76 26' Eleganza(?) with beaucoup mods and add - ons.
> Braselton, Ga.
> "I forgive them all, save those who hurt the dogs. They must answer to me
> in hell" - ol Andy, paraphrased
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
unloading of torsional loads like standing wave from belts. Lots of stuff
going on up there.
Jim Hupy
On Tue, Apr 3, 2018, 12:30 PM Johnny Bridges via Gmclist <
> Uh, Jim, his coach has a 'fluid drive' clutch operating the fan. It opens
> the fluid valve electrically rather than with a bimetal. If you read Bob's
> analysis, the bad metal is visible. And, add one to the tally, mine broke
> going N on 85. Using a stock fan and OEM clutch.
>
> --johnny
> --
> 76 26' Eleganza(?) with beaucoup mods and add - ons.
> Braselton, Ga.
> "I forgive them all, save those who hurt the dogs. They must answer to me
> in hell" - ol Andy, paraphrased
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
Water pump shaft should never break, except for extreme age or abuse cases, like in the Swamp Loggers machines, or corrosion, as on a salt water
marine application. The bearing should fragg from unbalanced loads or harmonics from the belts and accessories before the shaft breaks. Water pump on
Dad's Olds 98 with the same setup went past 200K before the BEARING failed in the middle of Alabama on a road trip. There was a tiny puddle of coolant
in the garage when we got home days later, apparently the weep hole had been doing its job before we left :? , just didn't notice it in the pre-trip
checkout.
--
Terry Kelpien
ASE Master Technician
73 Glacier 260
Smithfield, Va.
marine application. The bearing should fragg from unbalanced loads or harmonics from the belts and accessories before the shaft breaks. Water pump on
Dad's Olds 98 with the same setup went past 200K before the BEARING failed in the middle of Alabama on a road trip. There was a tiny puddle of coolant
in the garage when we got home days later, apparently the weep hole had been doing its job before we left :? , just didn't notice it in the pre-trip
checkout.
--
Terry Kelpien
ASE Master Technician
73 Glacier 260
Smithfield, Va.
It looks like the bearing was hot and probably seized breaking the shaft. The fan clutches really shouldn't cause any sudden loading in this design.
All the electric does is open a valve to start letting fluid flow, it's not like a truck air clutch that slams clutch plates together. A little more
investigative work is needed before anything is condemned here. Probably just a bad part. Bob was just fortunate that more damage wasn't done.
Hal
--
1977 Royale 101348,
1977 Royale 101586, Diesel powered,
1975 Eleganza II, 101230,
1974 Eagle Bus 45',w/slideout,
Rio Rancho, NM
All the electric does is open a valve to start letting fluid flow, it's not like a truck air clutch that slams clutch plates together. A little more
investigative work is needed before anything is condemned here. Probably just a bad part. Bob was just fortunate that more damage wasn't done.
Hal
--
1977 Royale 101348,
1977 Royale 101586, Diesel powered,
1975 Eleganza II, 101230,
1974 Eagle Bus 45',w/slideout,
Rio Rancho, NM
Thanks Hal. Nothing better than hands on inspection.
Jim Hupy
On Tue, Apr 3, 2018, 8:13 PM Hal StClair
wrote:
> It looks like the bearing was hot and probably seized breaking the shaft.
> The fan clutches really shouldn't cause any sudden loading in this design.
> All the electric does is open a valve to start letting fluid flow, it's
> not like a truck air clutch that slams clutch plates together. A little more
> investigative work is needed before anything is condemned here. Probably
> just a bad part. Bob was just fortunate that more damage wasn't done.
> Hal
> --
> 1977 Royale 101348,
>
> 1977 Royale 101586, Diesel powered,
>
> 1975 Eleganza II, 101230,
>
> 1974 Eagle Bus 45',w/slideout,
>
> Rio Rancho, NM
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
Jim Hupy
On Tue, Apr 3, 2018, 8:13 PM Hal StClair
wrote:
> It looks like the bearing was hot and probably seized breaking the shaft.
> The fan clutches really shouldn't cause any sudden loading in this design.
> All the electric does is open a valve to start letting fluid flow, it's
> not like a truck air clutch that slams clutch plates together. A little more
> investigative work is needed before anything is condemned here. Probably
> just a bad part. Bob was just fortunate that more damage wasn't done.
> Hal
> --
> 1977 Royale 101348,
>
> 1977 Royale 101586, Diesel powered,
>
> 1975 Eleganza II, 101230,
>
> 1974 Eagle Bus 45',w/slideout,
>
> Rio Rancho, NM
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
The bigger question should now be - Why did the bearing get hot and seize?
Do we know for sure it was a bad bearing, or did the bearing fail due to external influences?
Les Burt
Montreal
'75 Eleganza 26'
>
> Thanks Hal. Nothing better than hands on inspection.
> Jim Hupy
>
> On Tue, Apr 3, 2018, 8:13 PM Hal StClair
>
>> It looks like the bearing was hot and probably seized breaking the shaft.
>> The fan clutches really shouldn't cause any sudden loading in this design.
>> All the electric does is open a valve to start letting fluid flow, it's
>> not like a truck air clutch that slams clutch plates together. A little more
>> investigative work is needed before anything is condemned here. Probably
>> just a bad part. Bob was just fortunate that more damage wasn't done.
>> Hal
>> --
>> 1977 Royale 101348,
>>
>> 1977 Royale 101586, Diesel powered,
>>
>> 1975 Eleganza II, 101230,
>>
>> 1974 Eagle Bus 45',w/slideout,
>>
>> Rio Rancho, NM
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
Do we know for sure it was a bad bearing, or did the bearing fail due to external influences?
Les Burt
Montreal
'75 Eleganza 26'
>
> Thanks Hal. Nothing better than hands on inspection.
> Jim Hupy
>
> On Tue, Apr 3, 2018, 8:13 PM Hal StClair
>
>> It looks like the bearing was hot and probably seized breaking the shaft.
>> The fan clutches really shouldn't cause any sudden loading in this design.
>> All the electric does is open a valve to start letting fluid flow, it's
>> not like a truck air clutch that slams clutch plates together. A little more
>> investigative work is needed before anything is condemned here. Probably
>> just a bad part. Bob was just fortunate that more damage wasn't done.
>> Hal
>> --
>> 1977 Royale 101348,
>>
>> 1977 Royale 101586, Diesel powered,
>>
>> 1975 Eleganza II, 101230,
>>
>> 1974 Eagle Bus 45',w/slideout,
>>
>> Rio Rancho, NM
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
Les Burt[1
>
> Do we know for sure it was a bad bearing, or did the bearing fail due to external influences?
> Les Burt
> Montreal
> '75 Eleganza 26'
This is why Tom Pryor wants to get his hands on that pump.
He was an engineer with a first tier bearing supplier in Detroit for lots of years.
I'm waiting too.
Matt
--
Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan
OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Twixt A2 and Detroit
>
> Do we know for sure it was a bad bearing, or did the bearing fail due to external influences?
> Les Burt
> Montreal
> '75 Eleganza 26'
This is why Tom Pryor wants to get his hands on that pump.
He was an engineer with a first tier bearing supplier in Detroit for lots of years.
I'm waiting too.
Matt
--
Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan
OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Twixt A2 and Detroit
Isn't there a company up north making water pumps with the correct ball bearing/roller bearing configuration? I believe the company's name is Tuff
Stuff.
Scott.
--
Scott Nutter
1978 Royale Center Kitchen, Patterson 455, switch pitch tranny, 3.21 final drive, Quad bags, tankless water heater, everything Lenzi.
Houston, Texas
Stuff.
Scott.
--
Scott Nutter
1978 Royale Center Kitchen, Patterson 455, switch pitch tranny, 3.21 final drive, Quad bags, tankless water heater, everything Lenzi.
Houston, Texas
Bob D has left the property........ :d
Hal
--
1977 Royale 101348,
1977 Royale 101586, Diesel powered,
1975 Eleganza II, 101230,
1974 Eagle Bus 45',w/slideout,
Rio Rancho, NM
Hal
--
1977 Royale 101348,
1977 Royale 101586, Diesel powered,
1975 Eleganza II, 101230,
1974 Eagle Bus 45',w/slideout,
Rio Rancho, NM
My money's on a cheap pos water pump from the git go.
bdub
> Les Burt[1
> Why did the bearing get hot and seize?
> >
> > Do we know for sure it was a bad bearing, or did the bearing fail due to
> external influences?
> > Les Burt
> > Montreal
> > '75 Eleganza 26'
>
>
> This is why Tom Pryor wants to get his hands on that pump.
> He was an engineer with a first tier bearing supplier in Detroit for lots
> of years.
> I'm waiting too.
>
> Matt
> --
> Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
> Electronically Controlled Quiet Engine Cooling Fan
> OE Rear Drum Brakes with Applied Control Arms
> SE Michigan - Twixt A2 and Detroit
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
bdub
> Les Burt[1
> Why did the bearing get hot and seize?
> >
> > Do we know for sure it was a bad bearing, or did the bearing fail due to
> external influences?
> > Les Burt
> > Montreal
> > '75 Eleganza 26'
>
>
> This is why Tom Pryor wants to get his hands on that pump.
> He was an engineer with a first tier bearing supplier in Detroit for lots
> of years.
> I'm waiting too.
>
> Matt
> --
> Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
> Electronically Controlled Quiet Engine Cooling Fan
> OE Rear Drum Brakes with Applied Control Arms
> SE Michigan - Twixt A2 and Detroit
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
Yes, you're right. I put one on about 10 days ago. Time will tell, ....
bdub
> Isn't there a company up north making water pumps with the correct ball
> bearing/roller bearing configuration? I believe the company's name is Tuff
> Stuff.
> Scott.
> --
> Scott Nutter
> 1978 Royale Center Kitchen, Patterson 455, switch pitch tranny, 3.21 final
> drive, Quad bags, tankless water heater, everything Lenzi.
> Houston, Texas
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
bdub
> Isn't there a company up north making water pumps with the correct ball
> bearing/roller bearing configuration? I believe the company's name is Tuff
> Stuff.
> Scott.
> --
> Scott Nutter
> 1978 Royale Center Kitchen, Patterson 455, switch pitch tranny, 3.21 final
> drive, Quad bags, tankless water heater, everything Lenzi.
> Houston, Texas
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
Hal, did Bob take the broken shaft with him to Tuscon? Just got off the
phone with Jim K. They are interested in seeing the pump and how it
failed. They had just arrived in Tuscon, and heard that Judy and I were not
going to make it down due to some health issues. Have some tests and
procedures coming up, we will see how that goes.
Jim Hupy
> Yes, you're right. I put one on about 10 days ago. Time will tell, ....
> bdub
>
>
> > Isn't there a company up north making water pumps with the correct ball
> > bearing/roller bearing configuration? I believe the company's name is
> Tuff
> > Stuff.
> > Scott.
> > --
> > Scott Nutter
> > 1978 Royale Center Kitchen, Patterson 455, switch pitch tranny, 3.21
> final
> > drive, Quad bags, tankless water heater, everything Lenzi.
> > Houston, Texas
> >
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> >
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
phone with Jim K. They are interested in seeing the pump and how it
failed. They had just arrived in Tuscon, and heard that Judy and I were not
going to make it down due to some health issues. Have some tests and
procedures coming up, we will see how that goes.
Jim Hupy
> Yes, you're right. I put one on about 10 days ago. Time will tell, ....
> bdub
>
>
> > Isn't there a company up north making water pumps with the correct ball
> > bearing/roller bearing configuration? I believe the company's name is
> Tuff
> > Stuff.
> > Scott.
> > --
> > Scott Nutter
> > 1978 Royale Center Kitchen, Patterson 455, switch pitch tranny, 3.21
> final
> > drive, Quad bags, tankless water heater, everything Lenzi.
> > Houston, Texas
> >
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> >
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
I just spoke with Bob. He doesn’t have internet on the road to update
everyone. He’s up and running. He had to put another autozone pump on but
assures me it WILL be swapped out in Tucson with one without ballbearings.
He met up with a member in Albuquerque that had the pulleys... so wanted to
thank everyone for the offers of bringing or shipping one.
Ken
> Hal, did Bob take the broken shaft with him to Tuscon? Just got off the
> phone with Jim K. They are interested in seeing the pump and how it
> failed. They had just arrived in Tuscon, and heard that Judy and I were not
> going to make it down due to some health issues. Have some tests and
> procedures coming up, we will see how that goes.
> Jim Hupy
>
>
> > Yes, you're right. I put one on about 10 days ago. Time will tell, ....
> > bdub
> >
> >
> > > Isn't there a company up north making water pumps with the correct ball
> > > bearing/roller bearing configuration? I believe the company's name is
> > Tuff
> > > Stuff.
> > > Scott.
> > > --
> > > Scott Nutter
> > > 1978 Royale Center Kitchen, Patterson 455, switch pitch tranny, 3.21
> > final
> > > drive, Quad bags, tankless water heater, everything Lenzi.
> > > Houston, Texas
> > >
> > > _______________________________________________
> > > GMCnet mailing list
> > > Unsubscribe or Change List Options:
> > > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> > >
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> >
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
everyone. He’s up and running. He had to put another autozone pump on but
assures me it WILL be swapped out in Tucson with one without ballbearings.
He met up with a member in Albuquerque that had the pulleys... so wanted to
thank everyone for the offers of bringing or shipping one.
Ken
> Hal, did Bob take the broken shaft with him to Tuscon? Just got off the
> phone with Jim K. They are interested in seeing the pump and how it
> failed. They had just arrived in Tuscon, and heard that Judy and I were not
> going to make it down due to some health issues. Have some tests and
> procedures coming up, we will see how that goes.
> Jim Hupy
>
>
> > Yes, you're right. I put one on about 10 days ago. Time will tell, ....
> > bdub
> >
> >
> > > Isn't there a company up north making water pumps with the correct ball
> > > bearing/roller bearing configuration? I believe the company's name is
> > Tuff
> > > Stuff.
> > > Scott.
> > > --
> > > Scott Nutter
> > > 1978 Royale Center Kitchen, Patterson 455, switch pitch tranny, 3.21
> > final
> > > drive, Quad bags, tankless water heater, everything Lenzi.
> > > Houston, Texas
> > >
> > > _______________________________________________
> > > GMCnet mailing list
> > > Unsubscribe or Change List Options:
> > > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> > >
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> >
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
During my recent engine rebuild, I used a GMB premium heavy duty water pump from the local premium auto parts store. (Merle's). I don't really know
what the specs are on it, but I'm hopeful that I don't have any issues with it for a LONG time.
--
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles,
Solar battery charging. GMCSJ and GMCMI member
what the specs are on it, but I'm hopeful that I don't have any issues with it for a LONG time.
--
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles,
Solar battery charging. GMCSJ and GMCMI member
Here's what I installed a couple weeks ago. Gray casting of course. I'd
of gotten the larger impeller if Id've known it was available at the time.
I think it was about $90 w shipping and all.
http://www.tuffstuffperformance.com/c-1267378-new-products-water-pumps.html
bdub
> During my recent engine rebuild, I used a GMB premium heavy duty water
> pump from the local premium auto parts store. (Merle's). I don't really
> know
> what the specs are on it, but I'm hopeful that I don't have any issues
> with it for a LONG time.
> --
> Carl Stouffer
> '75 ex Palm Beach
> Tucson, AZ.
> Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive,
> Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American
> Eagles,
> Solar battery charging. GMCSJ and GMCMI member
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
of gotten the larger impeller if Id've known it was available at the time.
I think it was about $90 w shipping and all.
http://www.tuffstuffperformance.com/c-1267378-new-products-water-pumps.html
bdub
> During my recent engine rebuild, I used a GMB premium heavy duty water
> pump from the local premium auto parts store. (Merle's). I don't really
> know
> what the specs are on it, but I'm hopeful that I don't have any issues
> with it for a LONG time.
> --
> Carl Stouffer
> '75 ex Palm Beach
> Tucson, AZ.
> Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive,
> Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American
> Eagles,
> Solar battery charging. GMCSJ and GMCMI member
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
So okay folks let's step back and take stock of the recent events.
Bob Donaugh's pump was a standard automotive water pump installed and
failed before 1100 miles a week before he left for Tucson. In reliability
terms this is an INFANT MORTALITY.
His failure was a broken W/P bearing shaft.
The Shaft was broken at the ball race closest to the Radiator.
A shaft broken at the ball race means that the raceway and balls were
degraded to the extent that the balls penetrated the .050" of case depth
hardness of the race.
Why?
A degraded raceway means that the metallurgical properties to support the
load were exceeded or defective.
In my experience, a degraded raceway that early in life cycle occurs from
one or more of the following:
1. Defective steel or or heat treatment.
2. No lubrication or diminished lubrication( water
intrusion)
3 grease contaminated with metal particles.
4 internal fit too tight.........Preloaded
5 Engine belt Loads that exceed the design intent of
the application
Ball/Ball Integral shaft water pump bearings have long been plagued with
breakage due to the "point contact" loading. A Roller/Ball bearing spreads
out the load and diminishes the effect of the Point contact on a reduced
diameter, the ball track. Rollers on the other hand contact the shaft OD
which is larger than the ball track and over a substantially larger
surface area. This design achieves 3 times the load carrying ability.
Here is valuable info that you must consider when doing any maintenance on
the front of your engine. Replace your tired BALL/BALL TYPE Water pump
with *Cardone** Select* #5521118H water pump!
here is why: http://my.cardone.com/techdocs/PT%2058-0002.pdf--
--
Regards,
Tom Pryor
4188 Limerick Dr
Lake Wales, Fl 33859
Cell 248 470 9186
Living on a waterfront is not a matter of life or death. Its more
important than that.
Bob Donaugh's pump was a standard automotive water pump installed and
failed before 1100 miles a week before he left for Tucson. In reliability
terms this is an INFANT MORTALITY.
His failure was a broken W/P bearing shaft.
The Shaft was broken at the ball race closest to the Radiator.
A shaft broken at the ball race means that the raceway and balls were
degraded to the extent that the balls penetrated the .050" of case depth
hardness of the race.
Why?
A degraded raceway means that the metallurgical properties to support the
load were exceeded or defective.
In my experience, a degraded raceway that early in life cycle occurs from
one or more of the following:
1. Defective steel or or heat treatment.
2. No lubrication or diminished lubrication( water
intrusion)
3 grease contaminated with metal particles.
4 internal fit too tight.........Preloaded
5 Engine belt Loads that exceed the design intent of
the application
Ball/Ball Integral shaft water pump bearings have long been plagued with
breakage due to the "point contact" loading. A Roller/Ball bearing spreads
out the load and diminishes the effect of the Point contact on a reduced
diameter, the ball track. Rollers on the other hand contact the shaft OD
which is larger than the ball track and over a substantially larger
surface area. This design achieves 3 times the load carrying ability.
Here is valuable info that you must consider when doing any maintenance on
the front of your engine. Replace your tired BALL/BALL TYPE Water pump
with *Cardone** Select* #5521118H water pump!
here is why: http://my.cardone.com/techdocs/PT%2058-0002.pdf--
--
Regards,
Tom Pryor
4188 Limerick Dr
Lake Wales, Fl 33859
Cell 248 470 9186
Living on a waterfront is not a matter of life or death. Its more
important than that.
For whatever it is worth, this statement was stolen from this document
http://my.cardone.com/techdocs/PT%2058-0017.pdf
"Check fan and/or clutch. The number one cause of shaft breakage is an out-of-
balance fan (missing broken or bent blades) or a defective fan clutch."
Also read the last statement on this page starting with "Damaged housing or broken shaft:"
http://my.cardone.com/techdocs/PT%2058-0014.pdf
--
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
http://my.cardone.com/techdocs/PT%2058-0017.pdf
"Check fan and/or clutch. The number one cause of shaft breakage is an out-of-
balance fan (missing broken or bent blades) or a defective fan clutch."
Also read the last statement on this page starting with "Damaged housing or broken shaft:"
http://my.cardone.com/techdocs/PT%2058-0014.pdf
--
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
