take a look at your TR, B4 you r&r the oil pump...You may find it "missing" once you get the pan off.Don't have a step by step but it's really pretty straight forward. Remove the crossover pipe, remove the oil pan. The pan will clear the screen if you carefully maneuver it around. The oil screen and pump are easily accessible. Remove and replace. Completely remove any gasket material from pan and block. Install new gasket onto pan using RTV black gasket sealer, reinstall pan (do not over tighten bolts). Reinstall crossover, turn key, check for leaks, enjoy! You may want to change the rear main seal while you're there but that is a whole other issue. Good time to change if it's leaking, if not don't fix the unbroken!
That car must be a Custom Built unit having the Oil Pump in the pan???take a look at your TR, B4 you r&r the oil pump...You may find it "missing" once you get the pan off.
Feeling pretty stupid here, I was half asleep when I posted, I was thinking of the oil pick up screen/ tube! OOPS!Hesermon just gave instructions to R&R a small block Chevy oil pump, NOT a turbo Buick oil pump.
The oil pump is integeral to the timing cover, and to really do it right I would pull the timing cover. But......WHY do you NEED to replace the oil pump? If you have low oil pressure, look elsewhere. Time to R&R the engine and check bearings. If it is a rebuilt engine, then it might be a couple of things. A oil gallery plug popped out, bad bearing clearance, spun cam bearing, worn out lifter bores, loose oil pump pick up tube, NO oil pump pick up tube, oil pump clearance way too loose, ect. Still good idea to pull the engine and take a look. Everything needs to be checked, and double checked. I need a little more info on WHY you feel the oil pump needs replacing. I have never seen a worn set of oil pump gears really cause a low pressure issue. I'm sure it could, but after 20+ years of building these things, it is useally a bearing issue that casues oil pressure issues, or a really loose thrust clearance in the pump.
It's been a few years but 29 sounds right? You might find some useful info on these 2 sites.I have the 28mm socket that I bought for the crank bolt but of course that is a smidge to small. .....