C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Later Starter on Earlier Motor

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Old Mar 14, 2005 | 06:40 PM
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Default Later Starter on Earlier Motor

A couple years ago, I tried to swap my 87 starter with the later L98 mini starter. It didn't work for me because I couldn't get the teeth to align. It is possible the Discount Auto Parts guy gave me the wrong starter, but I abandoned the project.

I want to try it again. I remember some wires were too short also. Does anyone who's made the swap want to let me know what else to look out for? Thanks
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Old Mar 14, 2005 | 08:49 PM
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Originally Posted by Aaron's 87
A couple years ago, I tried to swap my 87 starter with the later L98 mini starter. It didn't work for me because I couldn't get the teeth to align. It is possible the Discount Auto Parts guy gave me the wrong starter, but I abandoned the project.

I want to try it again. I remember some wires were too short also. Does anyone who's made the swap want to let me know what else to look out for? Thanks
If the starter is the correct one for the flexplate you're running, you can shim the starter to improve the teeth alignment. Most of the auto parts stores sell starter shims.

Depending on which way the starter teeth need to be move, you move them closer or farther away from the flexplate teeth. You can also install a washer under just one of the starter bolts to give you even more adjustments.

There's a way to cause the solenoid to kick out the drive with the starter actually spinning the engine so the gap can be measured. Has to do with applying 12V to one of the starter solenoid terminals.

I forgot which one though, it's been a long time since I did it. Maybe someone can post the procedure for you.

Jake
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Old Mar 14, 2005 | 08:51 PM
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don't know if this applies, but I put an 89 starter on my 85. Wired up fine. Just needed to shim the starter, and it aligned fine.
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Old Mar 15, 2005 | 04:30 PM
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Hmmm

My attempt needed more than shims, which makes me think the parts guy gave me the wrong starter.

Wires were also short when I tried - wouldn't reach the new terminals. I guess I'll just have to try again.
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Old Mar 15, 2005 | 05:11 PM
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Originally Posted by Aaron's 87
Hmmm

My attempt needed more than shims, which makes me think the parts guy gave me the wrong starter.

Wires were also short when I tried - wouldn't reach the new terminals. I guess I'll just have to try again.
Well, that should be easy enough to verify by checking the part number.

The wire situation is puzzling since both starters are in the same location. Did you try re-routing them?

How much too short are they?

Jake
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Old Mar 16, 2005 | 08:43 PM
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Trying to remember from a couple years ago - I think the battery cable was the furthest from fitting because I checked into getting a salvaged battery cable from a newer car. It was only 3 to 6 inches off. There was no way at the time to re-route the cable or make any slack to get it to fit. Althought the starter mounted in the same location, the terminals were a few inches away from where they started because the newer starter was so much smaller.
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Old Mar 16, 2005 | 10:20 PM
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I put a starter from a 1990 6-Speed starter into my 1987 4+3. It fit perfect, the only issue is that the wire terminals were way out of reach. I had to lengthen all 3 wires to make it work, but it works great.
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