389 rope seal, does it have a pin?
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Joined: Jul 2001
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From: Pueblo Co
Car: 1989 C4
Engine: L98
Transmission: 700r4
Axle/Gears: 307
389 rope seal, does it have a pin?
Just a quick pontiac 389 question. Does a 389 have a pin in the block to retain the RMS? Lets say a 1959 389. None of my books say and I know there alot of pontiac buffs floating around here.
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Joined: Jan 2000
Posts: 3,178
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From: Tracy, CA
Car: '87 IROC
Engine: LB9
Transmission: TH700R4
Before this gets thread gets locked:
No. The rear main seal on a Pontiac 389 is not pinned or retained in any way.
Trying to replace the seal without removing the crankshaft, eh?
No. The rear main seal on a Pontiac 389 is not pinned or retained in any way.
Trying to replace the seal without removing the crankshaft, eh?
Last edited by paulo57509; Feb 27, 2005 at 02:09 AM.
Joined: Dec 2004
Posts: 1,132
Likes: 24
From: Midwest
Car: '82 Recaro T/A, '71 Trans Am
Engine: 305CFI/455HO
Transmission: TH700R4/M22
Axle/Gears: 3.23/3.42
Pontiacs use rope seals. They need to be "packed" into the groove with a tool outlined in the service manual. If you just lay the rope seal into the groove and assemble the engine it will leak.
There is a new rubber seal(like a Chebbie) that replaces the rope seal available from BOP Engineering.
There is a new rubber seal(like a Chebbie) that replaces the rope seal available from BOP Engineering.
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