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fundytides · 07-25-2020, 06:22 AM

The engine in my car was "rebuiltl" back in the 60's but never run. When I started running it recently, it seemed quite noisy to me. At first I suspected an oil pump problem but I removed the plug on the side of the block and there is lots of oil flow. The engine has .125 oversize pistons. Would the gaskets available then have accommodated this oversize? Can I tell if the pistons are hitting the gasket or head without removing the head. The head was probably planed at the time as well. I am going to remove pan to check rods and also check valves for proper clearance. To me it is more of a "clatter" than a knock. All suggestions are appreciated.

07-25-2020, 06:22 AM	#16
fundytides Senior Member Join Date: Feb 2013 Location: New Brunswick, Canada Posts: 480	Re: Help diagnosing engine knock The engine in my car was "rebuiltl" back in the 60's but never run. When I started running it recently, it seemed quite noisy to me. At first I suspected an oil pump problem but I removed the plug on the side of the block and there is lots of oil flow. The engine has .125 oversize pistons. Would the gaskets available then have accommodated this oversize? Can I tell if the pistons are hitting the gasket or head without removing the head. The head was probably planed at the time as well. I am going to remove pan to check rods and also check valves for proper clearance. To me it is more of a "clatter" than a knock. All suggestions are appreciated.