Will this older 12A starter work on my '85?
Will this older 12A starter work on my '85?
The starter I just pulled has 10 splines on the pinion. The one I'm wanting to put in has the same spline spacing but only has 7 or 8 splines. The whole pinion is smaller so I think it will work but does anybody know?
Starter groups are as follows 79-82 then 82-85. Being that at a certain vin# in 82 they switched.
I do know that I used both year types on a 80 motor when doing compression testing and they both worked.
I do know that I used both year types on a 80 motor when doing compression testing and they both worked.
It will work. Speaking for manual trans, all N/A flywheels are the same diameter, and all N/A starters bolt in at the same spot in the trans, so therefore all starters interchange.
Some are 8-tooth, some are 10-tooth, some are 11-tooth. They all work with each other through the magic of a very casual gear mesh.
I have used FB starters in an '80 trans and have used an SA and an FC starter in an FB trans. They all work just fine, even though it doesn't look like it would.
Hmm... the progression of the starter/trans setup in my Series 3 is as follows:
FB trans/FB starter
SA trans/FB starter
SA trans/SA starter
FB trans #2/FB starter
FB trans #2/FC starter
FB trans #3/FC starter
FC trans/FC starter
Somewhere along the way I put in an early engine with an '81-82 flywheel for a couple months, too.
Everything works with everything. Ain't it grand?
Some are 8-tooth, some are 10-tooth, some are 11-tooth. They all work with each other through the magic of a very casual gear mesh.

I have used FB starters in an '80 trans and have used an SA and an FC starter in an FB trans. They all work just fine, even though it doesn't look like it would.
Hmm... the progression of the starter/trans setup in my Series 3 is as follows:
FB trans/FB starter
SA trans/FB starter
SA trans/SA starter
FB trans #2/FB starter
FB trans #2/FC starter
FB trans #3/FC starter
FC trans/FC starter
Somewhere along the way I put in an early engine with an '81-82 flywheel for a couple months, too.
Everything works with everything. Ain't it grand?
Nope. Old school starter with New School engine doesn't work (unless this starter's bad but it's supposed to be good.)
Oh Oh Oh an FC starter will work?
::jumps up, runs to closet::
Oh I guess an auto starter won't work.
Hey on a slightly related note, will it work in reverse? If I hook the neg to the pos and vice versa will it try to turn the engine over the other way?
Oh Oh Oh an FC starter will work?
::jumps up, runs to closet::
Oh I guess an auto starter won't work.
Hey on a slightly related note, will it work in reverse? If I hook the neg to the pos and vice versa will it try to turn the engine over the other way?
Last edited by $150FC; Dec 10, 2006 at 02:34 PM.
Originally Posted by rx7doctor
What do you mean by it doesn't work? Does it just click? Does it sound like it binds? Does it just freewheel?
Trending Topics
Pos battery calbe gos to the starter, neg to the block, then the ignition wire to the solinoid, simple. The one that's spinning has a bad bendix/solinoid. If the other one is engaging, but not turning the engine over, see if you can turn the engine over by hand. If the engine turns over, check the flywheel for worn teeth.
Originally Posted by trochoid
Pos battery calbe gos to the starter, neg to the block, then the ignition wire to the solinoid, simple. The one that's spinning has a bad bendix/solinoid. If the other one is engaging, but not turning the engine over, see if you can turn the engine over by hand. If the engine turns over, check the flywheel for worn teeth.
I beg to differ. The starter on my car has never been off or changed its orginal. It has three wires.
Now I had to take this picture with my cellphone with no flash but if you look you can clearly see that the nut that the doctor says shouldnt have a wire clearly does. then there is the other nut that goes to the battery. Then the small spade connection that goes to the ignition.
I have no idea where the 3rd wire goes as it goes up into the harness.
Now I had to take this picture with my cellphone with no flash but if you look you can clearly see that the nut that the doctor says shouldnt have a wire clearly does. then there is the other nut that goes to the battery. Then the small spade connection that goes to the ignition.
I have no idea where the 3rd wire goes as it goes up into the harness.
Thread
Thread Starter
Forum
Replies
Last Post






