Thanks Bill ....Those cylinders needed a lot of scrubbing to get rid machining grit. Got the rods installed on the new pistons and replaced the Goetze rings with Hastings. All piston rod assemblies within a gram, manual calls for 4 grams max deviation.
Epoxy painted studs done. Wait a week or two before assembling.
Valves adjusted, got them at 19 and 21 so I put the head aside and started to assemble the bottom end.
Std bearing shells, GOETZE brand, thrust bearings and the cigarette seals with a dab of silicone in the corners of the rear cap.
Thanks for the tip, yep made sure it spins freely. Took it and the by pass apart and it was v clean inside. I think the failure point is probably the roll pin for the drive gear. Didn't do anything with it though.
What rotor is that?
To check the oil pump fit, install with bolts just less than snug. Turn over a couple times. Tighten bolts a bit. Stick big screwdriver into oil pump drive dog, where dist drive fits. Can you turn it a bit, just a bit of gear backlash? If so, good, tighten down bolts. If no backlash wiggle and try again.
Andrew, exactly what i did. Finger tight, turn it a few, tighten some more , repeat. Have not checked for backlash though, good tip! Thanks.
Oh yeah, the rotor is easy, but what else??? Hint; its related.
The rotor is a poor mans rev limiter.
It is marked 6500. Centrifugal force grounds the spark.
Early Porsche 930 turbo rotor,