Engine water pump hype..

homebase1

New member
Oct 24, 1997
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Gentlemen
For a long time I have been reading of the necessity of using the
'correct' water pump.
I am in the process of replacing my timing chain and gears. As
most of you know, to get to the timing dept. it is necessary remove
the water pump and an assortment of other odds and ends.

Allow me to digress, or hit delete, your option :-) I have been
driving this coach for over 4 years and have towed approximately
40% of the time. The first two years I had a radar detector on the
dash, as I was unable to control myself while running the 6
wheeled rocket. I have the 403.
I have been up and down the hills of Vermont and New Hampshire
and never once did I see signs of an over heating problem.

As I was saying, I removed the water pump and flipped it over to
see what could be nothing else but a cast impellered perfect pump-
WRONG. I was looking at a steel impellered pump with enough
room between the edge of the impeller and the case for two men
and a dog to walk.

SO, what am I supposed to do ???? Replace the pump that works
perfectly with a new 'better' pump or put the old one back on. The
answer to me is fairly simple. If it ain't broke, don't fix it :-)

Are we the the prophets of overkill? Why do we do this to
ourselves? How much better does something have to be, to
warrant replacing it? If something already works, why do we
replace it on the off chance that it 'may' cause us trouble?
If I applied this philosophy to myself, I'd have two pacemakers
wired in parallel.

And the worst part....I'm gonna put that perfectly working water
pump back in, but I'll never feel comfortable with it again ! Why is
that?

'Shrinks', feel free to contact me to schedule an
appointment :-)

Neurotic in NS
MikeB
 
I agree with Dick,
Put the old one in the spare parts and install the new one at this time.

J.R. Wright

>
> Mike, If you've got any substantial milage on the pump you pulled, spend the
> few bucks it costs for a new or quality rebuild and spare yourself the BS of
> having to do it again soon when the seals go and the thing starts spitting
> coolant all over the place. The water pump is a real pain in the ass because
> of all the OTHER stuff you have to pull to get to it.
> Do it now!
> Dick 75 PB in Atlanta
>

> >Gentlemen
> >For a long time I have been reading of the necessity of using the
> >'correct' water pump.
> >I am in the process of replacing my timing chain and gears. As
> >most of you know, to get to the timing dept. it is necessary remove
> >the water pump and an assortment of other odds and ends.
> >
> >Allow me to digress, or hit delete, your option :-) I have been
> >driving this coach for over 4 years and have towed approximately
> >40% of the time. The first two years I had a radar detector on the
> >dash, as I was unable to control myself while running the 6
> >wheeled rocket. I have the 403.
> >I have been up and down the hills of Vermont and New Hampshire
> >and never once did I see signs of an over heating problem.
> >
> >As I was saying, I removed the water pump and flipped it over to
> >see what could be nothing else but a cast impellered perfect pump-
> >WRONG. I was looking at a steel impellered pump with enough
> >room between the edge of the impeller and the case for two men
> >and a dog to walk.
> >
> >SO, what am I supposed to do ???? Replace the pump that works
> >perfectly with a new 'better' pump or put the old one back on. The
> >answer to me is fairly simple. If it ain't broke, don't fix it :-)
> >
> >Are we the the prophets of overkill? Why do we do this to
> >ourselves? How much better does something have to be, to
> >warrant replacing it? If something already works, why do we
> >replace it on the off chance that it 'may' cause us trouble?
> >If I applied this philosophy to myself, I'd have two pacemakers
> >wired in parallel.
> >
> >And the worst part....I'm gonna put that perfectly working water
> >pump back in, but I'll never feel comfortable with it again ! Why is
> >that?
> >
> >'Shrinks', feel free to contact me to schedule an
> >appointment :-)
> >
> >Neurotic in NS
> >MikeB
> >
> >
> >
 
I'll add my 2 cents worth...
A lot of time a component, i.e. waterpump, will work great for a long
time... until disturbed, and then at the most inopportune time it rears it's
ugly head and bites you in the ass. Personal experience many times over, as
everytime I get something that looks really good I have to remember hard and
slap my fingers so as not fall to the temptation to do it again... and every
once in a while I don't slap myself hard enough and take it in the behind
one more time.

BTW, it's not only GMC components that act that way :-)

Cheers

Heinz
...sweatin' it out in CA.

>I agree with Dick,
>Put the old one in the spare parts and install the new one at this time.
>
>J.R. Wright
>

>>
>> Mike, If you've got any substantial milage on the pump you pulled, spend
the
>> few bucks it costs for a new or quality rebuild and spare yourself the BS
of
>> having to do it again soon when the seals go and the thing starts
spitting
>> coolant all over the place. The water pump is a real pain in the ass
because
>> of all the OTHER stuff you have to pull to get to it.
>> Do it now!
>> Dick 75 PB in Atlanta
>>

>> >Gentlemen
>> >For a long time I have been reading of the necessity of using the
>> >'correct' water pump.
>> >I am in the process of replacing my timing chain and gears. As
>> >most of you know, to get to the timing dept. it is necessary remove
>> >the water pump and an assortment of other odds and ends.
>> >
>> >Allow me to digress, or hit delete, your option :-) I have been
>> >driving this coach for over 4 years and have towed approximately
>> >40% of the time. The first two years I had a radar detector on the
>> >dash, as I was unable to control myself while running the 6
>> >wheeled rocket. I have the 403.
>> >I have been up and down the hills of Vermont and New Hampshire
>> >and never once did I see signs of an over heating problem.
>> >
>> >As I was saying, I removed the water pump and flipped it over to
>> >see what could be nothing else but a cast impellered perfect pump-
>> >WRONG. I was looking at a steel impellered pump with enough
>> >room between the edge of the impeller and the case for two men
>> >and a dog to walk.
>> >
>> >SO, what am I supposed to do ???? Replace the pump that works
>> >perfectly with a new 'better' pump or put the old one back on. The
>> >answer to me is fairly simple. If it ain't broke, don't fix it :-)
>> >
>> >Are we the the prophets of overkill? Why do we do this to
>> >ourselves? How much better does something have to be, to
>> >warrant replacing it? If something already works, why do we
>> >replace it on the off chance that it 'may' cause us trouble?
>> >If I applied this philosophy to myself, I'd have two pacemakers
>> >wired in parallel.
>> >
>> >And the worst part....I'm gonna put that perfectly working water
>> >pump back in, but I'll never feel comfortable with it again ! Why is
>> >that?
>> >
>> >'Shrinks', feel free to contact me to schedule an
>> >appointment :-)
>> >
>> >Neurotic in NS
>> >MikeB
>> >
>> >
>> >
>
>
 
Mike, If you've got any substantial milage on the pump you pulled, spend the
few bucks it costs for a new or quality rebuild and spare yourself the BS of
having to do it again soon when the seals go and the thing starts spitting
coolant all over the place. The water pump is a real pain in the ass because
of all the OTHER stuff you have to pull to get to it.
Do it now!
Dick 75 PB in Atlanta

>Gentlemen
>For a long time I have been reading of the necessity of using the
>'correct' water pump.
>I am in the process of replacing my timing chain and gears. As
>most of you know, to get to the timing dept. it is necessary remove
>the water pump and an assortment of other odds and ends.
>
>Allow me to digress, or hit delete, your option :-) I have been
>driving this coach for over 4 years and have towed approximately
>40% of the time. The first two years I had a radar detector on the
>dash, as I was unable to control myself while running the 6
>wheeled rocket. I have the 403.
>I have been up and down the hills of Vermont and New Hampshire
>and never once did I see signs of an over heating problem.
>
>As I was saying, I removed the water pump and flipped it over to
>see what could be nothing else but a cast impellered perfect pump-
>WRONG. I was looking at a steel impellered pump with enough
>room between the edge of the impeller and the case for two men
>and a dog to walk.
>
>SO, what am I supposed to do ???? Replace the pump that works
>perfectly with a new 'better' pump or put the old one back on. The
>answer to me is fairly simple. If it ain't broke, don't fix it :-)
>
>Are we the the prophets of overkill? Why do we do this to
>ourselves? How much better does something have to be, to
>warrant replacing it? If something already works, why do we
>replace it on the off chance that it 'may' cause us trouble?
>If I applied this philosophy to myself, I'd have two pacemakers
>wired in parallel.
>
>And the worst part....I'm gonna put that perfectly working water
>pump back in, but I'll never feel comfortable with it again ! Why is
>that?
>
>'Shrinks', feel free to contact me to schedule an
>appointment :-)
>
>Neurotic in NS
>MikeB
>
>
>
 
>
> Mike, If you've got any substantial milage on the pump you pulled, spend the
> few bucks it costs for a new or quality rebuild and spare yourself the BS of
> having to do it again soon when the seals go and the thing starts spitting
> coolant all over the place. The water pump is a real pain in the ass because
> of all the OTHER stuff you have to pull to get to it.
> Do it now!

Mike,

Gotta' go along with the rest of the chorus on this one. I hate
replacing a good looking part as much as the next guy, but just had to
replace the water pump in the Cherokee. The bearings were still good
and tight - no play in the pump shaft, but the seal was shot. The pump
was coughing up coolant all over the place.

Looks can be deceiving.

Patrick
- --
Patrick Flowers
Mailto:patrick

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