super c front crank seal

young · May 3, 2010

just need some advice,i am putting a front crank seal in a super c, i don"t see how the pulley is fastened,or mabey i am missing something. also is there enough room to get the thing off with out moving the front bolster forward. thanks for your help, paul

Janicholson · May 3, 2010

It is not going to come off without removing the front casting.
It is pressed on. It cannot be pulled with a two or three arm puller, it will break the pulley.
A plate (1/2" made in a U shape to fit behind the flange will allow a good pull. Most come off with a hydraulic jack and a socket fitting down against the crank snout. The jack pulls on the U shaped plate (above with 5/8 or 3/4" ready rod and double nuts.) If it stays in the frame, a jack that pumps when horizontal is needed, or a Porta-Power.
I had to put one in a 60 ton press to get it off, and it was almost 4 ton of pressure on the ram.
Before reinstalling, clean everything and polish it up. Inner bore and shaft both need to be shiny. Heat the pulley to ~ 200 degrees then put it on rapidly pulling it in with the threads in the crank. Be sure there is no wear groove in the pulley where the seal rides, or put the new seal in a location that uses a different spot. Always polish the shaft roundy round not along the length to keep from wearing the seal. Put grease on the seal when putting it together to prelube it on the shiny shaft. Jim

El Toro · May 4, 2010

You will probably need to make a puller similar to what John made to pull a damper pulley off a Cub. Hal

El Toro · May 4, 2010

Here's a rough sketch as to what you need to make a puller using a bottle jack or hydraulic ram. Most metal shops can punch 13/16" holes for the 3/4 allthread that's used even in the 3/4 flatstock. Check these dimensions. Hal

super c front crank seal

young

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Janicholson

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El Toro

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El Toro

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