Hi Torque 12volt starter for 52 M38A1

MTM38A1

Does anyone know where to buy a 12 volt starter for a M38A1?
Is the hi-torque the way to go? I've had the original one rebuilt a couple times, but it doesn't seem to hold up. Thanks!

wesk · Posted: Sat Jan 09, 2016 3:44 pm Post subject:

You should be a bit more specific on the problem with the starter. Either it does hold up or it does not hold up but "seems to not hold up" is very iffy.

If it is truly failing then in what way does it fail. Electrical like brush wear or amrature solder throwing or mechanically like starter drive failures or bearing failures.

Are you using the correct starter drive that matches the tooth count on your flywheel?
_________________
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php

4x4M38 · Posted: Sat Jan 09, 2016 3:47 pm Post subject:

And is he grinding away on that thing in sub zero temperatures
regularly?
_________________
Brian
1950 M38
MC11481
http://www.willysmjeeps.com/v2/modules.php?set_albumName=album372&op=modload&name=gallery&file=index&include=view_album.php

MTM38A1 · Posted: Sat Jan 09, 2016 7:40 pm Post subject:

I have had it rebuilt twice now in 3 years; once locally and once by Snap Rebuilders in Salt Lake. Both times the problems began with intermittant failure to engage the gear with the flywheel. The starter motor would just spin. ( I don't know what the proper terms are here). Then eventually it would not engage at all....just spin.
I don't ever grind away at it....it starts pretty easy. Today it was 2 degrees above and I when I went to start it, it initially turned over then started spinning. I tapped on the solenoid (not the starter) to free up the spring, but no help.
I have not checked the number of teeth in starter or flywheel.
Thanks for your replies.

4x4M38 · Posted: Sat Jan 09, 2016 8:06 pm Post subject:

Sounds like the Bendix.

Are you getting any feedback from the folks that rebuild it?
_________________
Brian
1950 M38
MC11481
http://www.willysmjeeps.com/v2/modules.php?set_albumName=album372&op=modload&name=gallery&file=index&include=view_album.php

MTM38A1 · Posted: Sat Jan 09, 2016 11:08 pm Post subject:

Calling them Monday morning. Could be that the solenoid is not kicking out the bendix gear drive, correct?

wesk · Posted: Sat Jan 09, 2016 11:14 pm Post subject:

You need to find out what items were replaced at the rebuild of that starter. What you describe is strictly a Bendix Drive issue. If the rebuilder lubed the drive with oil heavier than 5 or 10 weight that could be the problem. If the rebuilder is rebuilding the electrical portion of the strater and re-using the original Bendix Drive that could be the problem. For the drive to function correctly the armature shaft must be clean and lightly oiled and the screw grooves on the Bendix Drive when it is extended should be clean and lightly oiled.
_________________
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php

MTM38A1 · Posted: Sun Jan 10, 2016 9:30 am Post subject:

Thanks for your help!

MTM38A1 · Posted: Sun Jan 10, 2016 11:41 am Post subject:

Found the problem....the gear on the bendix drive shattered, and the flywheel teeth are pretty chewed up. Got a new project!
I looked online at Midwest and Kaiser Willys for new ring gear and bendix drive, no luck. I'll call Midwest Monday morning.

4x4M38 · Posted: Sun Jan 10, 2016 12:04 pm Post subject:

Chicken or egg, no way to know for sure.

But the only thing you've changed/rebuilt so far has been the starter.

Wondering if the flywheel was chewed up to begin with and caused both
starter failures.
_________________
Brian
1950 M38
MC11481
http://www.willysmjeeps.com/v2/modules.php?set_albumName=album372&op=modload&name=gallery&file=index&include=view_album.php

wesk · Posted: Sun Jan 10, 2016 3:48 pm Post subject:

John at Midwest sold me a NOS 29 tooth ring gear a while back. I would think he still has them. He may have a starter drive but since that starter is a civilian Prestolite MDU-7004 just pick up a starter drive for a 57 to 71 CJ5 with a F134 from the autoparts store.

Here's one at Midwest Willys: http://midwestjeepwillys.com/931463.html
_________________
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php

MTM38A1 · Posted: Sun Jan 10, 2016 7:53 pm Post subject:

Thanks Wes!


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