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Joined: Nov 2005
Posts: 125
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Nov 2005
Posts: 125 |
Hello everyone, Do I have to pull the tranny to drop the crank enough to replace the rear main seal on a 235 motor? Thx
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
What year is the engine?
If it is a 1955 or later a new design rubber seal can easily be installed. Just drop the pan and rear main bearing cap.
If it is a 1954 or prior you will need to use a rope seal for replacement. The tough job here is replacing the top half with out stretching it out and ruining it.
Last edited by Chev Nut; 04/04/18 02:55 PM.
Gene Schneider
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Joined: Sep 2002
Posts: 2,323 Likes: 6
ChatMaster - 2,000
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ChatMaster - 2,000
Joined: Sep 2002
Posts: 2,323 Likes: 6 |
I have changed the seal top and bottom on my two 216s in recent years with success. I did pull the transmission back and dropped the crank around 1/4". I use picture hanging wire tied on the end to pull it in. I also only use the new style seal sold by best gasket. I believe it is important to get the clearance in the main bearings down to minimums to have success with the seal.
My 1951 1 Ton is now on the road! My 38 Master 4 Door is also now on the road .
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