Originally Posted by jeepers creepers
Yes, i'll check for flatness and correct clearance after brazing the pick up.
About the relief spring, do you know how much pressure will increase before the piston will be open? i know it sound pretty silly but i'm obsessed about the load on distributor and cam gear, i guess nothing noticeable, can you confirm this?
The difference in spring tension between the M55 and the M55A is not great, but the oil pressure goes up about 15psi. I think you will see more than that. I have put the pan on with a couple bolts and some oil and run the pump with priming tool just to see what the pressure is doing. I expect to see about 70psi on a cold engine with the priming tool and Mobil 1 10-30. As long as you have made a oil groove on the distributor body to spray on the gear mesh location, I think you will be OK.