24V starter motor question

If it was mine, I would be looking for 12 volt starters and take this opportunity to convert. You might be able to sell or use the generator and regulator elsewhere.

I just recently had to replace the regulator on ours which worked out ok, a NOS unit was still on the shelf at the local shop. It had been there so long it had to have the contacts sanded to get it to go! Less than a year ago I had to swap the generator out, again I had a good unit on the shelf, so no great expense, but if I had a 12 volt starter sitting around or had to buy a starter, i would have converted it to 12 volts in a minute!

Modern 12v alternators and 12 volt starters are common as dirt these days..........24 volt stuff, not so much. Prices should reflect that.

And I love to be able to jump start all my equipment with my pickup......not that I can't get it done on a 24 volt system, it just takes a lot more hassle.

The one with the offset adapter will have the same bolt pattern but the hole in the flywheel housing is larger. I'm pretty sure you will need to continue using the adapter to make the drive gear depth correct to the flywheel. As far as the three bolt pattern, the 40MT, 42MT and 50MT all interchange but drive end housing indexing of the throat can be different. 11 tooth is pretty common for straight cut gears. When it comes to the D65R the drive gear must be changed to RH helical to accommodate the flywheel ring gear. To allow the solenoid on the D6 to mount vertically (preferred) the drive end housing will need to be changed and in some cases the lever housing will need to be changed also. If you don't mind hanging the solenoid upside down you may be able to get by with the common standard drive end housing.

Hello ccjersey
I thought about changing over to 12V but the 12V starters are rated at much less power than the 24V starters. 9kw for the 24V as opposed to 7.8kw for the 12V.

OM
The adapter on the starter makes the starter match the SAE3 pattern. It still fits both bell housings. I purchased a helical cut gear drive for the starter some time ago. The D6 currently has a 12V starter on it but it has lost a lot of power and will not start the D6.

My info says the flywheel housing hole with the adapter is 4.5" diameter, The typical starter drive end housing is 3-5/8" diameter. Am I missing something?

Hello OM
My mistake. I measured the hole in the bell housing off the 950 and it is 4.5". The adapter for the 944 is stuck to the housing and I thought it was part of the housing.

According to the parts manual both the 944 and the 950 share the same flywheel housing 7M7475 but the flywheel is different for my serial number 43A2589

If I purchase the 50mt I can change it out later to a 42mt and use the 50mt on the D8 15A I think.

Regards

Phil

So, can we conclude that both the 944 and 950 use the starter adapter? Your 50 MT will not work on the D8 14/15A without changing to the larger bolt pattern drive end housing.

Yes at least on the two that I own😊

[quote]Your 50 MT will not work on the D8 14/15A without changing to the larger bolt pattern drive end housing.[/quote]
Like this one
Also where does the starter fit on the D8? I could not see any where for it to bolt up or does the pony motor need to be removed to reveal the mounting hole?

In regards to the pony motor, do you know if there is a 12V starter option for them? 6V batteries are uncommon and more expensive than 12V,

Regards

Phil

Pony motor needs to be removed to go direct electric start. Look for the large bolt circle where the pony goes into the flywheel housing. Although ready to install 50MT aftermarket starters are readily available the adapter housing itself can be hard to come by.
There is a 12V pony starter. Would come from an Industrial Engine application. Delco part number is a 1108182.

Thank you very much for all the info OM. Looks like both the adapter and the 12V pony motor starter are extremely rare. Do you have any pictures of the adapter plate? I may be able to make one. The problem with one of my D8's is the magneto was removed years ago and water has gotten into the sump through the magneto mount. I haven't pulled it apart yet and I am hoping it can be salvaged but if not I was hoping to convert it to direct electric start.

Regards

Phil