From: cuhulin on
Some people would probally call it the p.. hole.
Oooops,,,,,
cuhulin

From: cuhulin on
One of the places where I used to work was a cotton oil plant.The pumps
in the solvent extraction area where I worked, the pumps had square
graphited rope packing.It was a constant chore not having the packing
glands not tightned too tight and not too loose.That was Hexane fluid
(it is kin to lighter fluid) being circulated around inside of the
pipes.Very Flamable stuff it was too! The tools we used in there were
bronze non sparking tools.Breathing too much of that Hexane fluid would
make you ''high'', but it was the wrong kind of a ''high''
cuhulin

From: hls on

"lugnut" <lugnut(a)roadkill.net> wrote in message I suspect the coolant will
> collect around the bearings with the hole on top.
>
> Lugnut

It might collect a little bit, but would that really be an issue?

Those bearings are, IIRC, bronze bushings and they tolerate coolant
pretty well. The contact with coolant may provide part of the
lubricity. (As you would remember, people used to put water
pump lubricant in their radiators, which was nothing more than
"soluble oil". Ate up the hoses, but maybe lubed the pump shaft
a little).

From: hls on

"lugnut" <lugnut(a)roadkill.net> wrote in message
news:mgg6s5tts0pq1djm2gmkfof6appbto4ved(a)4ax.com...
> On Sun, 11 Apr 2010 09:20:01 -0500, "hls" <hls(a)nospam.nix>
> wrote:
>
>>
>>"lugnut" <lugnut(a)roadkill.net> wrote in message I suspect the coolant
>>will
>>> collect around the bearings with the hole on top.
>>>
>>> Lugnut
>>
>>It might collect a little bit, but would that really be an issue?
>>
>>Those bearings are, IIRC, bronze bushings and they tolerate coolant
>>pretty well. The contact with coolant may provide part of the
>>lubricity. (As you would remember, people used to put water
>>pump lubricant in their radiators, which was nothing more than
>>"soluble oil". Ate up the hoses, but maybe lubed the pump shaft
>>a little).
>
>
> I don't know of any modern automotive water pumps that use
> bushings for bearings. Bushings do not wear well in high
> speed applications like modern cars and trucks or small to
> medium marine and industrial engines. Every automotive app
> I can think of uses frictionless (ball or roller ) bearings
> in the water pump. In the old days - and I am sure is
> currently the case - pumps using bushings required zerk
> fittings and frequent lubrication during operation. I have
> seen those in older units. I have also seen pumps that use
> oil cooling and lubrication for the WP bearings. The weep
> hole in most of these applications is between the water seal
> and the neaeest bearing to minimize the chance of coolant
> getting to the bearings. Water pump lube was never for the
> bearings. It was to provide some protection and longer life
> for the coolant/pump seals. Most commercial
> antifreeze/coolant has enough lube quality for this
> nowadays. You will still find packing type seals in
> applications that use raw water like marine units to supply
> water-to-water heat exchanger cooling systems.
>
> Lugnut

I cant challenge you because I havent taken a water pump apart
and rebuilt it in a long time. And that last one definitely had a
bronze bushing.

Water or coolant does have some lubricating ability. Block polyols
were evaluated as coolant system lubricants, and did work, but it
was for the bearing surfaces, not the seals.

The old "soluble oil" lubricants were also for the pump shaft, and
probably worked some, but they did eat up the hoses, etc.

From: Tegger on
"hls" <hls(a)nospam.nix> wrote in news:MNednRXnmabr-
V7WnZ2dnUVZ_j6dnZ2d(a)giganews.com:


>
> I cant challenge you because I havent taken a water pump apart
> and rebuilt it in a long time. And that last one definitely had a
> bronze bushing.



How far back are we going here? 1960? 1940?



>
> Water or coolant does have some lubricating ability. Block polyols
> were evaluated as coolant system lubricants, and did work, but it
> was for the bearing surfaces, not the seals.
>
> The old "soluble oil" lubricants were also for the pump shaft, and
> probably worked some, but they did eat up the hoses, etc.
>


I'd be surprised if any car built after about 1975 had bushings in the
water pump.


--
Tegger