- 806
- 200
- 43
Hey all, I have a 1986 CUCV M1008 with the original 6.2 with original 24v system. Long post, you can probably skip down to the section with
below.
I had to replace the starter about 4 or 5 years ago with a remanufactured one. I think its what everyone calls the "direct drive" model, but I can't actually find a model number on it and its been too long for me to remember.
In any case, yesterday was doing some maintenance on the truck, one thing I did was changed out the batteries as when it was super cold here (-7 with -30+ windchill) a couple weeks ago the truck didn't want to start. Cranked but didn't want to fire, which is the first time I've not been able to start this truck in the winter, with at most cycling the glow plugs a couple times. I did finally get it started after running the batteries low and had to put a charger on them. Which they obviously were very cold too and therefore lower CCA, although they tested fine. I don't think I cranked it too long and overheated it... but always possible.
Then yesterday after I changed the batteries and went to start it to make sure everything was good. It cranked and started right up, but there was some noise. I thought at first I had a bearing on an alternator or something that was going bad. But it sounded worse than that. After looking the engine over and using a IR Temperature laser to find that neither bearing was hot on the alternators, at least on the case. I shut the truck off. Then I went to start it again, and click. Got the click multiple times, then it started to crank once but I turned the key back "off" before I realized it started to crank. After that I couldn't get it to crank again, just click.
Today, I tapped on the starter, loosened and re-tightened bolts, tapped it some more and etc. Nothing but clicks. So I loosened the bolts just a bit and with someone in the cab hitting the key and me under the truck tapping on the starter, it finally cranked and fired right up. Could still hear that same loud "grinding?"noise with the engine running. I quickly pulled it into my barn and shut if off, needed to get it inside as we had storms moving in. And I wanted to at least get it pulled out today as I'm sure I'll have to order the replacement, as I live out in farm country with no big auto parts stores near here. Plus its a 24v so I doubt the O'reiles 35 miles from me would stock one anyway.
With that all being the case I figured that the starter drive must have been stuck. I'm hoping that it didn't get stuck in the ring gear teeth. It took me about 4 hours to get the starter off and out of the truck
I must not know some trick or something, because this thing was just a bear to get out. There just isn't any space to work the starter out from over the drive shaft, oil pan, differential and etc. Couldn't hardly even see the bracket bolt no matter which way I angeled my light. Couldn't get to solenoid wires until I finally got it all unbolted and down toward the frame. I've never saw this old of a truck with so little room and be that hard and time consuming to just pull a starter out. I knew I had problems with it the last time though, but don't remember it being this bad. Should be a 20-30 min job. I almost think I could pull the engine easier, install a new starter on it, then reinstall the engine.... ![Roll eyes :rolleyes: :rolleyes:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
In any case, finally got it up on the workbench and the gear was not retracted fully into the nose (photo attached) only about half way. So I'm something is screwed up internally. But the teeth on the pinion don't look bad, so hopefully it didn't damage the ring gear. I'll have to get back down and try to look, I don't even know if I can see the ring gear down inside there with all the stuff in the way. With that said, since the teeth on the pinion gear look good... maybe it wasn't engaging the ring gear... but then what was all the noise from when the engine was running...? Hopefully not another issue.....
I didn't try to bench test it yet as I was wore out, and even if it does spin and retract it really doesn't mean much being off the truck.
I tried looking up some starters this evening, but all I'm finding are 12v models on the parts sites. So is this a CUCV specific model that you just have to look up by model number? I found a thread where someone said a 28MT would fit, but the one I found was still listed as being 12v![Neutral face :neutral_face: 😐](https://cdn.jsdelivr.net/gh/joypixels/emoji-assets@5.0/png/64/1f610.png)
Also there are two different "styles", or at least for 12v models there are. One type looks like this one, and the other looks smaller which I assume is a gear reduction starter. I would be open to the idea of being able to replace this with a smaller starter if that is possible. I'd also like to just buy a brand new one instead of any off brand remanufactured one's this time. I don't want to replace this thing again any time soon... or ever. But I also don't want to pay $300 or something. Used to be a place here that rebuilt starters and alternators, but they went out of business a few years ago.
Anyone know if there is a 24v "smaller" (gear reduction?) starter model that will work? And if they are still a strong starter?
Direct drive or gear reduction, are there any brand preferences that are best? I would think AC Delco/Delco would be OEM? Any other brands better?
And is there some sort of "correct method" to getting this starter out and back in??? Remove motor mounts and lift the engine?? Remove oil pan?? Front DIff??!! Tried to search on here, but didn't see anything pertaining to this. So now I'm guessing there isn't any "trick" and I am just that bad in figuring it out. I'll blame it on my tbi...![Roll eyes :rolleyes: :rolleyes:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Any Help would be MUCH Appreciated,
Thanks
![Backhand index pointing right :point_right: 👉](https://cdn.jsdelivr.net/gh/joypixels/emoji-assets@5.0/png/64/1f449.png)
I had to replace the starter about 4 or 5 years ago with a remanufactured one. I think its what everyone calls the "direct drive" model, but I can't actually find a model number on it and its been too long for me to remember.
In any case, yesterday was doing some maintenance on the truck, one thing I did was changed out the batteries as when it was super cold here (-7 with -30+ windchill) a couple weeks ago the truck didn't want to start. Cranked but didn't want to fire, which is the first time I've not been able to start this truck in the winter, with at most cycling the glow plugs a couple times. I did finally get it started after running the batteries low and had to put a charger on them. Which they obviously were very cold too and therefore lower CCA, although they tested fine. I don't think I cranked it too long and overheated it... but always possible.
Then yesterday after I changed the batteries and went to start it to make sure everything was good. It cranked and started right up, but there was some noise. I thought at first I had a bearing on an alternator or something that was going bad. But it sounded worse than that. After looking the engine over and using a IR Temperature laser to find that neither bearing was hot on the alternators, at least on the case. I shut the truck off. Then I went to start it again, and click. Got the click multiple times, then it started to crank once but I turned the key back "off" before I realized it started to crank. After that I couldn't get it to crank again, just click.
Today, I tapped on the starter, loosened and re-tightened bolts, tapped it some more and etc. Nothing but clicks. So I loosened the bolts just a bit and with someone in the cab hitting the key and me under the truck tapping on the starter, it finally cranked and fired right up. Could still hear that same loud "grinding?"noise with the engine running. I quickly pulled it into my barn and shut if off, needed to get it inside as we had storms moving in. And I wanted to at least get it pulled out today as I'm sure I'll have to order the replacement, as I live out in farm country with no big auto parts stores near here. Plus its a 24v so I doubt the O'reiles 35 miles from me would stock one anyway.
![Backhand index pointing right :point_right: 👉](https://cdn.jsdelivr.net/gh/joypixels/emoji-assets@5.0/png/64/1f449.png)
![Banging Head aua aua](https://www.steelsoldiers.com/images/smilies/icon_smile_banghead_125.gif)
In any case, finally got it up on the workbench and the gear was not retracted fully into the nose (photo attached) only about half way. So I'm something is screwed up internally. But the teeth on the pinion don't look bad, so hopefully it didn't damage the ring gear. I'll have to get back down and try to look, I don't even know if I can see the ring gear down inside there with all the stuff in the way. With that said, since the teeth on the pinion gear look good... maybe it wasn't engaging the ring gear... but then what was all the noise from when the engine was running...? Hopefully not another issue.....
I didn't try to bench test it yet as I was wore out, and even if it does spin and retract it really doesn't mean much being off the truck.
I tried looking up some starters this evening, but all I'm finding are 12v models on the parts sites. So is this a CUCV specific model that you just have to look up by model number? I found a thread where someone said a 28MT would fit, but the one I found was still listed as being 12v
![Neutral face :neutral_face: 😐](https://cdn.jsdelivr.net/gh/joypixels/emoji-assets@5.0/png/64/1f610.png)
Also there are two different "styles", or at least for 12v models there are. One type looks like this one, and the other looks smaller which I assume is a gear reduction starter. I would be open to the idea of being able to replace this with a smaller starter if that is possible. I'd also like to just buy a brand new one instead of any off brand remanufactured one's this time. I don't want to replace this thing again any time soon... or ever. But I also don't want to pay $300 or something. Used to be a place here that rebuilt starters and alternators, but they went out of business a few years ago.
Anyone know if there is a 24v "smaller" (gear reduction?) starter model that will work? And if they are still a strong starter?
Direct drive or gear reduction, are there any brand preferences that are best? I would think AC Delco/Delco would be OEM? Any other brands better?
And is there some sort of "correct method" to getting this starter out and back in??? Remove motor mounts and lift the engine?? Remove oil pan?? Front DIff??!! Tried to search on here, but didn't see anything pertaining to this. So now I'm guessing there isn't any "trick" and I am just that bad in figuring it out. I'll blame it on my tbi...
Any Help would be MUCH Appreciated,
Thanks
Attachments
-
125.3 KB Views: 27
-
26.8 KB Views: 26
Last edited: