Starter info

[garage gnome]

Thanks Bill for the info.

[Operation Overlord]

Sooo.....what kind of starter is this? �It's off of my early 49 3A with key start. �When I purchased it, it had a 12 volt battery. I have since converted it back to 6 volt but am experiencing slow cranking at times with a sort of grinding mechanical sound. �Other times it rotates normally. �Is this a Frankenstein? �It has no nose cone and the solenoid doesn't look like its mounted like that from the factory.

[Bob W]

I've seen those solenoid conversions before. No idea where you would get one of those solenoids if it failed. Probably a good old fashioned electrical repair shop would know.

[Operation Overlord]

So basically its still the MZ 4137 starter and what I need to do is get the mechanical linkage back in tact. I think that will solve my amperage problem as I feel the aftermarket solenoid is robbing the starter of amperage with the small cable on the far side of the solenoid.

[Bob W]

Yes, you will need to get the regular switch that mounts to the top of the MZ 4137 ,the push rod, and return spring.

[stony]

IMHO that mechanical starter is by far the best design.  Had a 56 CJ5 that we managed to bury in clay mud up in Alaska.  Filled the bellhousing, and ever after that the starter would not engage properly.  Pull the starter, clean it and it would work for a week or two, then same problem.  With the mechanical starter there would never have been a problem.

[Mark W.]

MY jeep (model number is irrelevant) Has a 1948 engine with the later bell housing (long bolt bosses enclosed starter cone made to fit the 9.25" clutch) and plate. The flywheel has 129 teeth. The starter is a key on/off dash mounted button with a fenderwell mounted solenoid. I am quite certain this was all done about 1963 when the engine was being rebuilt by my dad. 

[aboyandhisdog]

Sorry, don't know how to fill in FBill's blanks from the previous page, so hopefully anyone looking for this info. might find it here:

Also they used a 97 tooth flywheel and a ____tooth drive.

 

According to Walcks, the 4113 had a 9 or 10 tooth drive but both worked on the 97T ring gear.

Earliest 3A used MZ-4137   

It had a pushrod operated switch with the pushrod thru the floor 124 tooth flywheel ,_____tooth drive

The 4137 and the 4162 also had a 9T drive for the 124T ring gear.

This required a new 129 tooth ring gear, a different flywheel, flywheelhousing, rear engine plate, and the starter no longer uses a bushing in the bell, as it has a nose cone with a bushing installed in it. Starter drive uses ______teeth.

The 129T ring gear also used a 9T drive.


Also a note on these foot starters...The round starter button on the top of the switch will screw in.  This will allow you to delay the juice to the bendix until AFTER the lever has already engaged the ring gear.  Discovering this has been painful for me ($$ already spent on rebuilding starter, drives, ring gear r&r, etc).   You may need to unscrew it and clip off the bottom end of the spring in order to screw it in all the way, but you'll get there.  The problem I was having is the starter would get just up to the ring gear but would just screetch and spin without fully engaging and turning the flywheel.