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Labor Day Putting down your wrenches or time for
MORE wrenching? 
Plenty of places to share. | | Click on image for the lowdown. 
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10 members (Jay R, 3B, JW51, walter74, 68ironhead, Jon G, baldeagle, carbking, Bill Hanlon, 1 invisible),
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Global Mod,
Mod | | | Forums66 Topics128,004 Posts1,055,247 Members48,418 | | 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
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Apr 2010 Posts: 27 New Guy | | New Guy Joined: Apr 2010 Posts: 27 | I checked on your question and the thump or knock is both at the base of the distributor where it enters the block and anywhere else you put your listening stick on the body and cap of the distributor. The guy who rebuilt the engine (been at it for 30 years and known to be very honest) said the noise really puzzles him. | | |
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