"Or Equivalent" - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 12-02-2013, 10:55 PM   #1
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Our 1993 Bonneville was purchased new by my wife'* grandmother, driven for five years by my wife'* mother after grandma passed away, and has been in our hands for the past 10 years. A Bonneville of this vintage is not a collectable, for sure, but ... there'* some sentimental value, the body & interior are still decent, and we need it for a fourth generation of drivers.

Having said that ... a couple of rod bearings spun after 20 years & I tore the engine down. The cylinder bores look almost new and the cam is in good shape. The crank has light scoring & has been polished to improve its condition. I'm going to put it back together with new bearings & rings & try to get a few more years out of it.

My questions revolve around GM'* threadlocks, sealers, and lubricants "or equivalent" as specified in the factory service manual.

After reading other threads here, do I have this right:
Threadlock GM p/n 12345493 = Loctite Red 272?
Rear Main Cap Sealer GM p/n 1052942 = Loctite Instant Gasket Eliminator 518?
Intake Manifold Gasket sealer GM p/n 1052942= Loctite Instant Gasket Eliminator 518?
Cylinder Head Bolt Threadlock GM p/n 12345382 = Loctite Blue 242?

What are the market equivalents for ...
Jacket Plug Sealer GM p/n 1050026?
Cam Lube/Valve Lifter pre-lube GM p/n 1052365?
Thrust Bearing lube GM p/n 1050169?
Cylinder Head & Front Cover Bolt sealant GM p/n 1052080?
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Old 12-03-2013, 07:35 AM   #2
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threadlock is good for locktite. for sealant, and gaskets i just use permatex ultra black. for thread sealer permatex thread seal. for the cam and lifters likely be fine to use some oil. sounds like you are reusing them.
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Old 12-03-2013, 01:18 PM   #3
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Yes, reusing the cam & lifters. The lobes showed minor wear but look pretty good. The lifters seem fine after a thorough cleaning.
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