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Starter motor stuck cranking over - Burned up starter motor

JMF20

New member
1988 M998 Starter motor stuck while cranking over, pull the seat as fast as I could to disconnect the batteries.
Apparently I was not fast enough. When I went to connect the battery cables, I got a lot more spark than normal. (should be none)
The starter got stuck on me once before a couple weeks back but it came out of it before I could disconnect the batteries.

Ohm'd out the positive lug on the starter motor and the negative on the starter motor and I have continuity..... No beuno.

This happened two years ago, the bendix got stuck in the flywheel and burned up the starter motor in a spectacular fashion, melting the positive lug off the starter motor.
Since this happened, I believe it fried the Smart Start box as my wait light wasn't acting right. Crank, crank, crank, no start.
I ended up making a glow plug wiring harness and using a ford starter relay to a momentary push button switch, which has always worked for me in the past. (1983 suburban etc)
So here I am again with a junk starter motor....

Where is the best place, or only place? to get new brushes, etc for these 24V starters?
Do I just buy a civy 6.2 12v starter and see how long that lasts?
I have 2 (two) 24v .mil starter motor cores now so I guess that will help pay for the repair/replacement.
 

Mogman

Moderator
Staff member
Moderator
Steel Soldiers Supporter
Curious do you have the shim between the starter and block?
 

glcaines

Well-known member
Steel Soldiers Supporter
I'm not surprised that you got a lot of spark when disconnecting the battery cables. If you disconnect the cables while the starter is engaged, there is a very large amount of current flowing.
 

Mogman

Moderator
Staff member
Moderator
Steel Soldiers Supporter
I'm not surprised that you got a lot of spark when disconnecting the battery cables. If you disconnect the cables while the starter is engaged, there is a very large amount of current flowing.
He said he got a large spark when re-connecting the cables..
 

Coug

Well-known member
Steel Soldiers Supporter
my first thought would be check your local area and see if there are any starter rebuild shops nearby. It's usually a lot cheaper to rebuild rather than replace, but not always.
 

Mogman

Moderator
Staff member
Moderator
Steel Soldiers Supporter
Are you using the OEM run/start switch, or a keyed ignition?
 

Coug

Well-known member
Steel Soldiers Supporter
 

Mogman

Moderator
Staff member
Moderator
Steel Soldiers Supporter
Those are too light weight for my taste, 1000A for 3 seconds is the answer I got when I inquired.
How about 2500A for 10 seconds, love these Hella switches and the are keyed!
Hella.jpg
 

JMF20

New member
I like the looks of that manual cutoff switch, got a link?

As for fixing my starter motor, where can I buy parts to rebuild it?
 
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