Super A Repair Question

mgranger

New User
OK, I thought I posted this yesterday but I don't see it. So I'm trying again.
My wife's grandaddy's super A is leaking from the front crankshaft seal. My question is do I have to remove the cover and the front of the tractor to replace it or can it be replaced without removing the cover?
 
It has been quite a while since I had one of them in pieces, so I need to say AS I RECALL. Others will be along and confirm correct.

The seal is pressed into the cover from the inner side, so the cover needs to come off. The pulley MAY have a setscrew to remove first (if some early A parts have migrated onto it). In any case, the pulley will be hard to pull off. You will need to back up the pulley with a large bearing separator. Screw a bolt into the end of the crankshaft (until it bottoms) to push against. The pulley may have a groove worn from the old seal. If so, ready sleeves are available to provide a new seal surface. I believe Case-IH has seals packaged with a wear sleeve. When you install the front cover, leave the bolts loose so the seal can self-center when the pulley is installed. Tighten the cover after installing the pulley. The pulley goes on much easier if you warm it first. A toaster oven set at about 250 works well, as does letting it sit in boiling water or heated oil. Screw some all-thread into the front of the crankshaft and use appropriate plates/washers and a nut to pull it on.

You can search for past posts with more details/suggestions on removing the pulley.
 
Jim forgot but the steering sector needs to be removed to get the pulley off so get the tractor blocked good before removing front axle and steering housing.
 
You may find that the seal has worn a groove on the pulley. If so, there is a seal kit which has a wear sleeve to resolve the problem. The seal and sleeve number is 378193R91. GOOGLE the part number too verify the application.
You need to watch though, because some after market sources use the same part number for just the seal.
 

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