Don"t touch that bolt

[Dick Steinkamp]

Originally Posted by J Franklin

The spring needs to be on the bottom of the pump, and the pump needs to float on that spring because the assembly as Ford engineered it acted as the pressure relief. Don't use a bolt where the oil plug is.

I'm scratching my head on this one. Can you explain further?

I can't see of a way the pump would go over pressure and need relief. It basically pumps oil under very low pressure to the valve chamber. From there, the oil flows out the "window" on to the timing gears and/or out the oil drain back pipe back to the pan. There is no restriction that I can see that would build pressure. Under what circumstances is too much pressure obtained?

If it does for some reason go over pressure and the pump drops and depresses the spring, where does the oil then go? If it drops down too far, won't it become disconnected from the drive pawl for an instant, then try to reengage with much clatter and busting of parts?