I am rebuilding a Mercruiser 470 and have a question about the timing chain tensioner (top of photo). It is installed the way the manual illustrates but is pressing against the chain fairly hard. There are pre existing grooves in the rubber from the timing chain. Does anyone know if this is...
I bought a new cam for my Mercruiser 470. The new cam is 23 5/8 inches in length with a threaded opening on the front. The old cam is 23 5/8 inches from the rear to the beginning of the beveled area on the front. There is a threaded shaft that looks like it may screw into the cam. I am finding...