400 engine question - Pontiac GTO Forum
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post #1 of 4 (permalink) Old 01-26-2013, 10:38 AM Thread Starter
 
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400 engine question

I'm getting ready to put my rebuilt 400 into my 69 GTO. I can't find a picture so I thought I'd ask the forum. Is there a seal that gets pressed into the block around the end of the crankshaft to seal the flywheel?
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post #2 of 4 (permalink) Old 01-26-2013, 08:29 PM
 
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Did you install the crank into the block? ...or did a machine shop do it? The rear main seal is installed in the rear main bearing saddle and rear main cap when the crank is installed. If you installed the crank and didn't install the seal, some disassembly is in order...

When the only tool in your toolbox is a hammer, you tend to see every problem as a nail.
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post #3 of 4 (permalink) Old 01-26-2013, 11:29 PM
 
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Hopefully if a shop did it they installed the new Viton seal in place of the stock rope seal.

1964 400 4 speed Roller cammed RoadRacer
1969 400 T400 auto 2nd owner
2004 LS1 6 speed modded for roadracing
1966 GTO Altered wheelbase former 1970s show car
1973 Challenger 360/727
1931 Ford Model A
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post #4 of 4 (permalink) Old 01-27-2013, 11:40 AM
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Do a search for 'rear main seal' on this forum and you'll get all the education you could want on the subject. Good luck with your project.
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  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO Complete Engine Compartment Discussion

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