All Nation drive with loose worm gear

Before you disassemble, check to find out if there is a set screw on the worm that has come loose.    It will save a lot of work.

+1 on check for the set screw. 

Dave,

I don't think you will find a set screw on this assembly.  You might try a very careful application of a drop of Loctite 609 Retaining Compound using the end of a toothpick at the point where the gear and shaft come in to contact with each other.  The Loctite should wick into the joint.  Let it set for a few hours and see if the gear still can turn on the shaft.

Joe

rrjjf posted:

Dave,

I don't think you will find a set screw on this assembly.  You might try a very careful application of a drop of Loctite 609 Retaining Compound using the end of a toothpick at the point where the gear and shaft come in to contact with each other.  The Loctite should wick into the joint.  Let it set for a few hours and see if the gear still can turn on the shaft.

Joe

 

 

 

 

Thanks Joe,  I agree there is not a set screw as I would have been able to see it. I will try your idea using the wicking technique of the Loctite 609. Because the assembly is covered with oil that my interfere with the Loctite bonding. I will put it in an ultrasonic cleaner to try to get all the oil cleaned off. Once I apply the Loctite 609  with the tooth pick I will spin the shaft around in the worm bore to try to get the Loctite to work its way completely into worm bore and shaft.   These All Nation transmissions unfortunately are not make to be disassembled. 

The last runs were assembled without care, and you would probably be ahead by completely disassembling and starting over.  A cheaper way is to get older transmissions- they are almost bulletproof.  You can wear them out, but it takes a very, very long time, running 8 hours a day.

It has been over a decade since I pulled one apart, but I think I had to make a special tool.  The wheels had to come off too, I think, and re-assembly required a clamp, hammering, and solder.

Early assemblies had heavy duty knurls, and were unlikely to ever come loose.