|
Joined: Apr 2010
Posts: 191
Shade Tree Mechanic
|
OP
Shade Tree Mechanic
Joined: Apr 2010
Posts: 191 |
Just got my rebuilt water pump back from the Filling Station. New bushings, painted black, truly a thing of beauty. The instructions sternly warn to be sure to oil the front bushing every time you drive more than a few miles. Owner's manual and service manual say nothing about this. They only mention the grease cup. In fact, the oil hole for the front bushing was full of dirt and there was no (apparent) oil hole in the bushing to allow oil down to the shaft. This was just as true for the core, so I can't fault the rebuilt. Lubing the rear bushing via the grease cup is obvious, but what's the story with the front?
|
|
|
|
Joined: Nov 2001
Posts: 19,758 Likes: 64
ChatMaster - 15,000
|
ChatMaster - 15,000
Joined: Nov 2001
Posts: 19,758 Likes: 64 |
The front bushing should be an Oilite or permanently lubricated. They are made from bronze particles forced together and normally lubricated with 30W oil. They only require occasional drop or two of oil to replenish that lost. If a regular bronze bushing is used no amount of oiling will preserve performance. Ask me how I know.
How Sweet the roar of a Chevy four!
|
|
|
|
Joined: Nov 2001
Posts: 29,863
Tech Advisor ChatMaster - 25,000
|
Tech Advisor ChatMaster - 25,000
Joined: Nov 2001
Posts: 29,863 |
The Mangy Old Mutt
"If It's Not Junk.....It's Not Treasure!"
|
|
|
|
Joined: Mar 2010
Posts: 199
Shade Tree Mechanic
|
Shade Tree Mechanic
Joined: Mar 2010
Posts: 199 |
I need to rebuild my pump also, is the bushing that they use the correct one? I don't want to have any problems with it. Thanks Todd
|
|
|
|
Joined: Nov 2001
Posts: 19,758 Likes: 64
ChatMaster - 15,000
|
ChatMaster - 15,000
Joined: Nov 2001
Posts: 19,758 Likes: 64 |
I think that the Filling Station is now getting their kits from a supplier that uses oilite bushings. Make sure to ask to be sure.
How Sweet the roar of a Chevy four!
|
|
|
|
Joined: Dec 2001
Posts: 11,162
ChatMaster - 10,000
|
ChatMaster - 10,000
Joined: Dec 2001
Posts: 11,162 |
All I can say about oiling the front bushing is that if you drive the car a few hundred miles a day for several days and you don't oil the front bushing it will start to emit a squeek, this audio warning means "I need some oil!" you can ask me how I know this if you need to. The one in my 28 is evidently not a permemantly lubed bushing, like in the more modern 32, but it isn't too hard to change, either. ......Been there done that.... Carry a good squirt can full of 30 wt. and if you have grease cups , a couple of turns a week will usually be enough. I refill mine every oil change
Life's a long winding trail, love Jesus and ride a good horse!
|
|
|
|
Joined: Sep 2009
Posts: 170 Likes: 1
Shade Tree Mechanic
|
Shade Tree Mechanic
Joined: Sep 2009
Posts: 170 Likes: 1 |
what grease do you use in the grease cup ?
|
|
|
|
Joined: Nov 2001
Posts: 29,863
Tech Advisor ChatMaster - 25,000
|
Tech Advisor ChatMaster - 25,000
Joined: Nov 2001
Posts: 29,863 |
The Mangy Old Mutt
"If It's Not Junk.....It's Not Treasure!"
|
|
|
|
Joined: Apr 2010
Posts: 191
Shade Tree Mechanic
|
OP
Shade Tree Mechanic
Joined: Apr 2010
Posts: 191 |
I'm still in the middle of this project. Got the new pump back in and this time I did lose some skin to the radiator. Haven't filled the radiator or run the engine yet. As far as the right grease goes, the owner's manual lube chart says to use cup grease, same stuff they say to use on the front wheel bearings. Water pump grease did exist in the thirties, I used to have an old can of it, lost it, darn. In my car the previous owner was using what I think must be Lubriplate #115. It was thick and white. It was so thick that when I turned the cup down, the grease squeezed out the threads rather than going into the pump. I will give the grease cup a thorough clean out and see whether things improve. Went to the Lubriplate website and notice that #115 is for applications up to 150 deg. Water pumps would run hotter than that. Does it matter?
|
|
|
|
Joined: Nov 2001
Posts: 29,863
Tech Advisor ChatMaster - 25,000
|
Tech Advisor ChatMaster - 25,000
Joined: Nov 2001
Posts: 29,863 |
The Mangy Old Mutt
"If It's Not Junk.....It's Not Treasure!"
|
|
|
|
Joined: Dec 2001
Posts: 11,162
ChatMaster - 10,000
|
ChatMaster - 10,000
Joined: Dec 2001
Posts: 11,162 |
lubriplate waterpump grease 115 is what you need to use, it is water soluable and won't gum up your radiaror and water jacket like chassis lube.
Life's a long winding trail, love Jesus and ride a good horse!
|
|
|
|
Joined: Aug 2010
Posts: 283
Backyard Mechanic
|
Backyard Mechanic
Joined: Aug 2010
Posts: 283 |
Just bebuilt my 31 pump.Bought the pump kit from filling station.Found out the metal spacer in the pump has two holes for the grease to pass through.Steve at the filling station said some of these pumps did not have a spacer.Seems without one it would be hard to get the grease into packing washers.Also I had to use two gaskets the new impeler would hit the baffle plate with just one.
Wake up to learn something new everyday.
|
|
|
|
Joined: Nov 2001
Posts: 29,863
Tech Advisor ChatMaster - 25,000
|
Tech Advisor ChatMaster - 25,000
Joined: Nov 2001
Posts: 29,863 |
I have never seen an original water pump without the metal spacer. As you suggested, it must be used and the metal spacer is also listed in the Chevrolet parts book as well. On the impeller problem, I have heard from several other dudes that they also had to use two gaskets to keep the impeller from hitting the baffle plate. 
The Mangy Old Mutt
"If It's Not Junk.....It's Not Treasure!"
|
|
|
|
Joined: Apr 2010
Posts: 191
Shade Tree Mechanic
|
OP
Shade Tree Mechanic
Joined: Apr 2010
Posts: 191 |
To get to the bottom of my troubles getting grease from the grease cup into my water pump, I took the grease cup out and gave it a thorough cleaning. I found a small brass, spring loaded check valve way down in the throat which reduced the diameter of the opening by at least half. This plus the thicker Lubriplate made it basically impossible to force grease by the check-squirted out the cup threads instead. By going very slowly-1/8 turn at a time-grease would pass. Is this a common problem or is there something else going on?
|
|
|
|
Joined: Nov 2002
Posts: 7,472 Likes: 26
ChatMaster - 7,000
|
ChatMaster - 7,000
Joined: Nov 2002
Posts: 7,472 Likes: 26 |
The cup should have a rubber bonded seal at the end of the thread. Does your cup have one? Not sure if the check is supposed to be there, but please see your PM for other suggestions.
Steve D
|
|
|
|
|