Super C

[Anonymous-0]

How much of a project is it to change the the front main seal. Can i get at it without tearing the whole engine apart. Is it possible to just to take off the pulley to get at it or am I thinking wrong. Any help would be appreciated.

 

[ScottyHOMeY]

The front seal is seated on the inside of the timing cover.

You're right about the pulley. To get it off means taking the front end away, which involves draining the radiator, and pulling the hoses and the steering linkage. From there the pulley and the governor assembly have to come off. A few more bolts and you'll have the timing cover ready to work on.

The archives are full of articles (search on As, Bs, Cs, Cubs . . .) on how to get the pulley off and back on (tension fit). For timing issues, for your own sake and that of the next guy to work on it, set your motor up at TDC on the compression stroke so you can get the ignition drive on the back of the governor drive gear back on without being a tooth off -- use the factory marks or at the least scribe marks on it and the cam gear so they go back together just as they came apart.

Replacement is a project (a lot of work for one seal) but not a particularly ugly one.

 

[gene bender]

You will need to remove the whole front of the C including the steering sector ro remove the pulley so you will need to support the tractor so the whole front can be removed. After removing the pulley you will need to check it very careful to see if the old seal has worn a grouve in the pulley. Mite need to have a speedy sleeve installed so the new seal has a good surface.

 

[Matt896]

Yes make sure you check the pulley for a groove worn in it from the seal, or even surface rust that could damage the new seal. Also when you in stall the new seal put the bolts in the timing cover but leave them loose until you have the pulley tight. This will center the seal around the pulley. Also I have had the paper gasket for the timing cover leak oil after replacing them. may want to coat it with copper coat or even RTV. Good luck!

 

[SCpuller1]

Surprised nobody mentioned it but maybe I only do these sorts of things. Make sure to use the correct type of puller to get it off instead of being in a rush and using some old piece of junk in your tool box and end up cracking a piece off and having to buy a new pulley.