1986 Buick Regal Shims for Starter

CANINEGURU

MEMBER
1986 BUICK REGAL
6 CYL
2WD
AUTOMATIC
103,000 MILES

I have had problems with the starter on this car since the original went kaput. I have had two new starters crack at the nose cone within about 3 years of installation each (6 years). When I installed the the replacement starters, I did not shim them because I figured that since the original starter had no shims, the new ones wouldn't need them either. But the guy at the auto parts store this last time said I might need to use shims this time.

My question is, is this so, and if so, how many shims do I need to use? The instructions that come with the starter say that if you hear a high pitched whine after releasing the key. Which is the case, but it's breif and faint. Then there is not enough clearance. Which seems logical considering that I've had two starters crack on me.

And, if I do need to use shims, is there a trick to getting them on? I tried to use one, but had trouble keeping it in place while lifting the starter to install.

Conclusion: Do I need shims? If so, How many? And is there a trick to make getting them on easier?

1 Reply

JDL

MECHANIC
16,098 POSTS

You can start the inside bolt, but, leave it loose. The shim, .O15, this is a whole shim for both starter bolts, should be forked on one end, the forked end goes around the inside bolt, then you can stab the other bolt. If the shim isn't forked on inboard end, then cut a piece out.

My information says not to use more than four whole shims, less if possible.

The only reason I know for the starter to make noise after the engine starts, is because the pinion gear is hung-up on the flywheel. Sounds like you need more clearance, as long as the starter itself and the flywheel is ok.