C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Rear Main Seal??

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Old Nov 13, 2005 | 10:33 AM
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Default Rear Main Seal??

I'm finishing the rebuild of my new 'vette motor
The crank is a stock high mileage crank - all the journals are still within factory spec, however the old rear mean seal wore a groove into the back of the crank

My machinist wants to cut 1 rib off the new rear main seal. Does anyone know where I can get a rear main seal that rides on a different spot on the crank than the original one?
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Old Nov 13, 2005 | 12:42 PM
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Originally Posted by DrEvil11417

My machinist wants to cut 1 rib off the new rear main seal. Does anyone know where I can get a rear main seal that rides on a different spot on the crank than the original one?
That would make me dubious of your machinist. See if there's a replacement seal available that comes with a wear sleeve.
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Old Nov 13, 2005 | 01:37 PM
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Originally Posted by Corvette Kid NC
That would make me dubious of your machinist. See if there's a replacement seal available that comes with a wear sleeve.
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Old Nov 13, 2005 | 01:48 PM
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That's what im looking for. Anyone know of one?
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Old Nov 13, 2005 | 06:44 PM
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Default 1 Pc. Offset Rear Main Seal

Originally Posted by DrEvil11417
That's what im looking for. Anyone know of one?
Corteco (Detroit Gasket) has the rear main seal for the late SB's. It has an offset designed into it. The part number is 17275. Thanks, Gary in N.Y.
P.S. If you can't get it locally, contact me. I'm on the island.
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Old Nov 13, 2005 | 10:42 PM
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Originally Posted by GOSFAST
Corteco (Detroit Gasket) has the rear main seal for the late SB's. It has an offset designed into it. The part number is 17275. Thanks, Gary in N.Y.
P.S. If you can't get it locally, contact me. I'm on the island.
yeah, if i could get the seal by the weekend that'd be awesome so i can put the motor in
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