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| | | Forums66 Topics128,089 Posts1,056,354 Members48,442 | | 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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For helping keep this great
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Sep 2009 Posts: 105 Shop Shark | | Shop Shark Joined: Sep 2009 Posts: 105 | ...So I was stripping down my engine for a trip to the machine shop. I want to have the shop put in a new oil pump with the rebuild. I got down to taking off the oil pump and found two circular headed bolts that go through the block and into the oil pump housing. the threads on the housing side are peened off. It seems to me the only way to remove is to drill them out, as the heads are perfectly round, and don't take a socket.
Can anyone confirm or deny? | | | | | Joined: Mar 2005 Posts: 1,513 'Bolter | | 'Bolter Joined: Mar 2005 Posts: 1,513 | I remember being fooled by that too. Th oil pump is retained by a single bolt with a tapered end and lock nut. Look for it near the crankshaft where the pump slides into the block and if you back it off the pump will slip out. No drilling or grinding required.
1952 1300 Canadian 1/2 ton restomod You Tube | | | | | Joined: Apr 2006 Posts: 506 Shop Shark | | Shop Shark Joined: Apr 2006 Posts: 506 |
-Tom
1950 Chevy 3100 w/ 1956 235
| | | | | Joined: Nov 2005 Posts: 1,554 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 1,554 | http://www.chevytrucks.org/tech/engine1.htm You need to look at this, it tells you how to do it correctly. I just got this info in an earlier post today. I'm taking mine apart real soon. Dave 1941 Chevy"First rebuild - complete!"Follow the story in the DITY1941 GMC resting peacefully 1946/1947 Chevy Street rod on s10 frame complete 1945 GMC panel truck in line for restoration 1941 Plymouth stock complete 1941 GMC COE in restoration processRead his Project Journal1941 Chevy Coe uncertain future resting now
| | | | | Joined: Sep 2006 Posts: 2,393 Shop Shark | | Shop Shark Joined: Sep 2006 Posts: 2,393 | I was told after I had removed those two round headed bolts on a 216 that a mistake was made on my part because those two bolts are critical to the correct positioning of the oil pump in the block and that is why they are rounded because they are not to be removed. Luckily for me,when I replaced those 2 bolts and the oil pump, all seemed to work ok. When rebuilding my 235, I left them alone.
Drew
| | | | | Joined: Sep 2009 Posts: 105 Shop Shark | | Shop Shark Joined: Sep 2009 Posts: 105 | Ahhhh yes, I see it now. Glad I asked! | | |
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