Oil pump shim

[Rawze]

I am going to include adding the shims to the oil pump in my engine re-build video series. I think it will clear up a lot when people see how weak that spring really is.

What got me to go ahead and do it to mine was what Dr.ISX said to me. He said he checked oil pressure at the overhead cams, and there is only about 9 psi there normally. That is not much pressure at all for protecting the cam bearings and lubricating the rockers.