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Global Mod,
Mod | | | Forums66 Topics128,051 Posts1,055,766 Members48,426 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
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| | | Joined: Nov 2009 Posts: 639 'Bolter | | 'Bolter Joined: Nov 2009 Posts: 639 | I pulled the water pump off of my 270 and sent it off to be rebuilt. I'm finishing a rebuild on the engine and had the pump rebuilt to be safe. When I got it back it spun like a new pump. When I installed it last night I found that it was hard to turn by hand. The pump turns freer the more I back out the mounting bolts.
This is the original pump off the engine and is installed with new gaskets. It seems to be binding. What gives? What am I missing?
| | | | | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | It sounds like the shaft is hitting the back plate.
In some cases I have to grind the end of the shaft slightly.
See the USA in your vintage Chevrolet! My Blog | | | | | Joined: Nov 2009 Posts: 639 'Bolter | | 'Bolter Joined: Nov 2009 Posts: 639 | Dave, that was it. I destroyed my gaskets and had to grind about 3/32s off, but it's good now. Thanks!  | | |
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