I’m finally making a bit of progress on my 3.8 e-type engine project, crank and pistons in, distributor drive in with issues as below, and have a question about the oil pump I got from Terry’s Jag parts. I’m trying to remember details, as this build has been delayed by a lot of things, but I believe the 4.2 pump has to be used, 3.8 unavailable, and there is a size difference of the pickup tubes on earlier 3.8 cars. The pump I got was modified with a brass sleeve for my early car and was supposed to be ready to bolt up. Of course, the early car o-rings in the seal kit are too small and I’ll be calling them about that tomorrow - must need the 4.2 size. What I’m a bit concerned about is the oversized bolt holes. Both the 3.8 and 4.2 are secured with dowel bolts, I assume to securely center the pump on the coupling from the drive. I think the castings are poor compared to the original, which has a machine fit. The current one is sloppy compared to that. My guess is that they are now all like that. Am I being too compulsive about this? Has anyone noticed this as a problem?
As to the dizzy drive, I had a loose distributor drive bushing. It just popped right out when I put the shaft in (shaft was a tiny bit snug). I fixed it by replacing the the #10-32 plug screw for the oil drilling with a longer allen bolt. It had to be shimmed just long enough to act as a set screw, but not distort the bushing. Anyone seen this problem? I’ve rebuilt several XK engines before, and have not seen this. I think my fix is adequate, but wondering what other experience is out there.