Transmission & oil Cooler lines

P

patrick flowers

New member
Sep 19, 1997
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Frank,

My personal preference would be an alarm, not engine shutdown. Saving
the engine is a good idea, but the pilot in me is prepared to sacrifice
the engine for the greater good if needed. Also keep in mind that the
flex hoses don't always fail catastrophically. Mine didn't - they just
sprayed oil everywhere. A car following noticed the smoke and got our
attention before we lost oil pressure.

My $.02,
Patrick

>
> Back Yard Mechanics.
> I have been toying with the idea of sensors in the return oil cooler
> line at the filter and also one at the return line on transmission. The
> idea being that if a hose broke these would be wired into ignition to
> shut motor down.
> Pluses prevent fire in case of hose or line rupture.
> save engine from major damage
>
> Negatives power steering would be lost
> brakes would be lost. This could be corrected with vacuum
> pump.
> My 1986 S-10 had this set up. If oil pressure fell it would shut
> engine down.
>
> LETS hear it am I whistling in the wind or is it something to consider
- --
Patrick Flowers
Mailto:patri63

The GMC Motorhome Page
http://www.gmcmotorhome.com
 
Frank

I tend to agree with Patrick on this one.

I'd hate to have an engine shut down in the middle of some nasty traffic,
goodbye power steering, not to mention brakes.

We once lost a line for the Engine oil cooler. Sprayed 6 quarts of Royal
Purple all over U.S. 50 in heavy rain, rush hour traffic, approximately 1/2
mile short of an offramp, and 2 lanes over. By the way the shoulder was
non-existent. Made the offramp, barely, then found a side street. The
lifters weren't working too well, no oil. Pulled the lines, literally in
the gutter. Made a quick phone call, and was able to get a ride to a local
shop to have new lines made up. Installed the new lines and filled her up
with oil. She still runs great, with apparently no harm done. Granted
Royal Purple is a Top-Flight synthetic oil (~ $4.00 a qt w/ shipping for 5
gallons).

Sacrifice the engine before you put yourself and others in "harms way."

Dave
74 Sequoia

- -----Original Message-----
From: Patrick Flowers
To: gmcmotorhome
Date: Tuesday, January 12, 1999 12:05 PM
Subject: Re: GMC: Transmission & oil Cooler lines

>Frank,
>
>My personal preference would be an alarm, not engine shutdown. Saving
>the engine is a good idea, but the pilot in me is prepared to sacrifice
>the engine for the greater good if needed. Also keep in mind that the
>flex hoses don't always fail catastrophically. Mine didn't - they just
>sprayed oil everywhere. A car following noticed the smoke and got our
>attention before we lost oil pressure.
>
>My $.02,
>Patrick
>

>>
>> Back Yard Mechanics.
>> I have been toying with the idea of sensors in the return oil cooler
>> line at the filter and also one at the return line on transmission. The
>> idea being that if a hose broke these would be wired into ignition to
>> shut motor down.
>> Pluses prevent fire in case of hose or line rupture.
>> save engine from major damage
>>
>> Negatives power steering would be lost
>> brakes would be lost. This could be corrected with vacuum
>> pump.
>> My 1986 S-10 had this set up. If oil pressure fell it would shut
>> engine down.
>>
>> LETS hear it am I whistling in the wind or is it something to consider
>--
>Patrick Flowers
>Mailto:patri63
>
>The GMC Motorhome Page
>http://www.gmcmotorhome.com
>
>
 
Lanier,
Wouldn't matter much to everyone on the interstates in Jackson. would it?
Just give you a scare, not them.
Roger
 
Terry

I am not an aircraft mechanic, but I do practice preventive maintenance. I
don't know the age/status of your oil cooler lines, but my replacement of
the functional 20 year old lines falls into that category. I wanted to
reduce of the chances of incurring a possible engine fire resulting from a
burst hose. Given the age of the hoses and the improved products available,
I viewed the expense as "peace of mind". My new lines are encased in the
stainless steel braid; the originals were not and quite hardened with age.
YMMV, but I could not justify NOT replacing the hoses.

Chuck
77 Kingsley

- -----Original Message-----
From: Terry Skinner
To: gmcmotorhome mailing list
Date: Wednesday, January 13, 1999 8:42 AM
Subject: GMC: Transmission & oil Cooler lines

I read this letter with great interest. Being an aircraft mechanic I too am
in favor of the synthetic oils, it just happens to be Amsoil for me. While
changing the oil I examined the adaptor that allows the oil to go to the
cooler and it seems to me that if I lost an oil line the best way to go
would be removal of the adaptor, reinstal the filter on the block and
replace the oil. That should get you a long ways, mabe home. So now, if I am
missing something please tell tell me now because this is how I justified
not replacing the hoses.
FYI there is a place in Seattle that makes hydrolic lines to order called
Spencer aircraft. Try
http://www.spencer-ind.com/ or if you need someone to run interferince give
me a call or e-mail.

Frank

I tend to agree with Patrick on this one.

I'd hate to have an engine shut down in the middle of some nasty traffic,
goodbye power steering, not to mention brakes.

We once lost a line for the Engine oil cooler. Sprayed 6 quarts of Royal
Purple all over U.S. 50 in heavy rain, rush hour traffic, approximately 1/2
mile short of an offramp, and 2 lanes over. By the way the shoulder was
non-existent. Made the offramp, barely, then found a side street. The
lifters weren't working too well, no oil. Pulled the lines, literally in
the gutter. Made a quick phone call, and was able to get a ride to a local
shop to have new lines made up. Installed the new lines and filled her up
with oil. She still runs great, with apparently no harm done. Granted
Royal Purple is a Top-Flight synthetic oil (~ $4.00 a qt w/ shipping for 5
gallons).

Sacrifice the engine before you put yourself and others in "harms way."

Dave
74 Sequoia
 
In addition to replacing the lines, while your there replace the gasket for the
line take off. This is the gasket that developed a leak on the way to Marion and
cost me an engine. It is the same gasket as the one for the oil filter. I'll bet
not 1 out of 100 has ever been changed and mine was as hard as steel when I
removed it.

Marcus

> I too have replaced the lines with JR Slaten ss and braided lines.
> If you develop a leak and are able to pull over, its a matter of removing the
> oil filter and with 1-1/4" socket, remove the nut and housing and install the
> oil filter back on.
> Fill the engine with oil and you're on your way.
> My understanding is that if you are using synthetic oil, you may be able to go
> a few miles after the oil pressure goes down without blowing the engine.
> How many miles?
> Also if you are going to order the lines from Gateway or Cinnabar, insist on
> getting the BLUE hose instead of the black hose. Got this information this
> weekend from a GMC 49er rally seminar. The main thing is to replace the lines
> if you suspect they are over ten years old.
>
> My two cents worth if I'm aloud
>
> Manny 73 Custom/ex-Glacier
 
> Also if you are going to order the lines from Gateway or Cinnabar, insist on
> getting the BLUE hose instead of the black hose. Got this information this
> weekend from a GMC 49er rally seminar.

> Manny 73 Custom/ex-Glacier

Manny--

Could you please explain what the difference is between the "BLUE" and
black hoses?
Thanks.

Phil Stewart
76 Transmode, TN
 
I did just that when I lost a line. It was a cool day, only 100 miles
from home and no big hills.
Just a word of warning. How many people carry an oil filter wrench in
their tool box. I didn't. Can't tell you how hard it is to remove
a very hot, oil covered filter that you have to reuse.
Ted Schurman
73 Glacier VA


>
> While changing the oil I examined the adaptor that allows the oil to go to the cooler and it seems to me that if I lost an oil line the best way to go would be removal of the adaptor, reinstal the filter on the block and replace the oil. That should get you a long ways, mabe home. So now, if I am missing something please tell tell me now because this is how I justified not replacing the hoses.
 
Guys
A shortcut I learned many years ago


In an emergency, wrap an old v-belt around the filter so that one
end of the loop is inside the other end. Insert a large screwdriver so
that the upper part of the screw driver is against the belt loop and
the flat of the driver is against the filter. As the screwdriver tightens
the belt, it in turn forces the filter to turn.
It's worked for me.and should for you....that is if you can follow my
so called instructions ...
Mike Beaton
Nova Scotia
 
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