Starter change over?
 

Is it possible to change a K301 with a S/G to a Solid State Charging System? Is there a conversion kit or parts list to do this? :bigthink:

I've done it on my 109 but you need a wide frame to make room for the larger flywheel and fan shroud!

This engine is going in a 1250 frame. I know I need a starter, flywheel, shroud, and stator. What else is needed to do this conversion? Is it just a bolt on and go or is there some mods that need to be made?

You will also need the bearing plate that the stator bolts to and a regulator. I am glad I converted mine, I dont miss that s/g at all! Check E bay, lots of parts there.

Thanks for the information. I was curious about that plate on the back of the motor. :beerchug:

This engine that I will be converting I think is out of a 122. The serial number plate is also missing. I keep seeing k301a, k301as. k031aqs. How can I tell what engine this is? Does it make a difference on the brearing plate, stattor, flywheel, and/or starter?:Help:

When I did my 109 I didn't pay much attention to model numbers, I don't even know if the parts I used were from a 10 hp! I am pretty sure the bearing plates an flywheels will fit between different models, but not sure about the 16hp, I know that block is a little different. The stators are pretty much the same other than the current ratings.

Thanks for the info 104strad. I would still like to know the difference between the "series" of k301 motors. If they are all the same, what is with the letters after k301 on the engine tags?

Not sure about those model numbers, I just put a k301 in my 109 that was in a 1250, and I think it was a aqs model. By the way what happened to the motor that was in your 1250?

I bought it with out a motor and a few other items. 50 bucks, couldn't pass on it! It is going to be a puller/worker.

Why can't I find deals like that, I'm looking for one I can put my old 10hp in. I love these tractors!

I did a little research and found out that "a" in the model number refers to the type of oil pan it has, the "q" stand for quiet series, and the "s" stand for electric start, I hope that helps.

Now it makes :TwoCents::TwoCents::Forgot:. Thanks again for the effort 104strad on the research!

my jd 112 has a k301 with a small flywheel and the stator/starter type system. none of the jd garden tractors to my knowledge had starter generators. i dont know why some manufactures used one and others used the other type? personally i kind of like starter generator type. they are so quiet. the gear/pinon starter is kind of loud "grind for me".

Starter/gen combos have been around a long long time.
(IIRR pre 1920 Dodge had a 18 Volt starter/generator combo)
Perm magnet starters are a relatively newer design and have become cost effective, as they have less weight and less copper wire.
With the advent of solid state regulators/rectifiers the P.M. system became more economical to produce, with less weight,and charges @ a lower rpm. due to the fact it is a ac flywheel alternator rectified to d.c.

ad356 the jd 110 had a s/g