I know this sounds stupid but how tight should the pushrod be?
I’m chasing a fuel delivery issue on my 440. I had a comp cam 4626 in engine. It seems ok but I had already bought another just in case so I figured I would replace it while out. I bought a Mancini MRE5249569. Usually I have to grease the pushrod up so it won’t slide out while installing fuel pump. I can’t even push the new one in. I greased it up and once it gets over the shoulder at the 3/4” mark it doesn’t want to go in without some force. I don’t want to tap it all the way in and then discover this it not right. The diameter of the mancini unit is bigger by .0004. If I’m reading my dual gauge right.
Length wise the Mancini unit is 1/64” longer than the Com Cams unit