My 1970 xr7 351c was rebuilt without an eccentric rule pump driver. The intent was for an electric fuel pump. However I want to keep the mechanical pump and as close to original as possible. The engine is out of the car and The timing cover was been put on and I can see through the fuel pump mounting hole, there is no eccentric attached to the timing gear (CCA-2121CPG). On a 351c cam, ( COMP Cams Magnum Hydraulic Roller Cam and Lifter Kits K32-431-8) should I also see a rod coming out the cam, through the timing gear and through that eccentric to for attachment?
Before I break this down I would like to know the parts I need and also I have no idea how difficult it would be to install that rod if I need to? Do I need to remove the cam, etc? Thank you for any help.
It’s not like a generic motors power plant. There is no rod, You just have to take off the water pump and the front cover and install the eccentric. You might need a longer bolt or the locating pin. The cam will not have to come out nor the timing set.
Thank you Royce. The issue is the locating pin. I can not see one on the timing gear when I look through the fuel pump mounting hole . If there is not one there, are they difficult to install? Can I install one or do I need to find an eccentric that does not require the pin? Thank you again for the knowledge
Thank you sir. I was not aware of that. Huge help, I appreciate you. First time I am trying to perform this. You have any other tips for this part of the project? Any thing specific when replacing the timing cover gasket and/or crankshaft seal? Use RTV red?
RTV Red is unnecessary for any automotive temperatures. It was developed for turbine engine sealing where temperatures exceed 1800 degrees F. Your exhaust manifolds are around 450 degrees - very close to typical RTV limited temperatures of 1200 degrees F.
Personally I would use something like Permatex #2 for gaskets that are subjected to oil. Maybe some RTV in the corners only.
RTV is great for sealing up voids where there is no gasket, or where the gasket doesn’t seal well (like the corners). But Permatex #2 is awesome as a gasket sealer. It is designed to work along with the gasket, resists engine fluids, and works up to 400 degrees. It also has the advantage of being easier to remove if needed.