Pilot bushing? All i can find from any auto part store, and from courtesy is one for a manual. Someone told me when mating an engine that came from a manual to an auto that you need to swap to an automatic pilot bushing. Can anyone verify that for me?
ssm86 is dead right, the deal is i have a 85 auto that has a dead engine in my garage, found an 85 manual engine, i've already bought but have yet to go pick it up. Im just trying to get some research and hope i dont have to do a 5spd swap..
It may well be necessary to remove the pilot bushing from the manual crank to allow the dowel or post at the front centre of the TC to fit the end of the crank. This post accurately locates the TC centre with the crank centre, more accurately than just the four TC-to-flexplate bolts would.
Yes the auto uses a bushing. It is completely different than the pilot bushing used on the manual. If you have both engines, look at the rear of the engine where the flywheel bolts to the crank. You will see the difference. Just remove the bushing from the auto engine using a pilot bushing puller, and remove the pilot bushing from the manual engine. Put the auto bushing on the manual engine along with the flywheel from the auto engine ( there is also a ring that the bolts go through before going into the flywheel on the auto) and you're ready to go. When you start pulling the flywheel off the engines, it will be obvious what needs to be swapped. The Nissan number for the auto bushing is 12330-w4400 for Z31's made up till 1/85, and 12330-14L00 for 1/85 and later if you really want a new bushing.