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Timing cover gasket?

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Old Aug 3, 2017 | 02:11 PM
  #1  
wgripp's Avatar
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From: Valdosta, GA
Car: 1991 Trans Am GTA
Engine: L98(5.7 L TPI)
Transmission: 700r4(A4)
Axle/Gears: G80 RPO, 3:23s, Auburn Racer's Diff
Timing cover gasket?

My engine is out of my car to replace the oil pan and the rear main seal. If my valve guide seals and rear main seal require replacement, is that an indication that it's time for the timing cover gasket to also be replaced? If so, do I have to do the timing cover gasket now (with the engine out of the car)? Or can it be done with the engine reinstalled?

Thanks!
Bill
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Old Aug 3, 2017 | 02:29 PM
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From: Huntsville AL
Car: 88GTA
Engine: 5.7TPI
Transmission: Auto
Axle/Gears: 3.27
Re: Timing cover gasket?

Bill, I would change the timing chain and gears too......while its out. JM2C
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Old Aug 3, 2017 | 05:09 PM
  #3  
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From: Adrian, Mi, USA
Car: 1988 Pontiac Firebird Formula
Engine: 5.7 TPI
Transmission: 700R4
Re: Timing cover gasket?

Originally Posted by Bob88GTA
Bill, I would change the timing chain and gears too......while its out. JM2C
Exactly. It isn't ever going to get any easier.
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Old Aug 3, 2017 | 06:20 PM
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From: Portland, OR
Car: 86 Imponte Ruiner 450GT, 91 Formula
Engine: 350 Vortec, FIRST TPI, 325 RWHP
Transmission: 700R4 3000 stall.
Axle/Gears: 9 Bolt Torsen 3.70
Re: Timing cover gasket?

Cloyes double roller timing chain set. Don't bother with a gasket on the chain cover just RTV it. RTV has come a long way and will outlast any paper gasket at this point.

GD
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Old Aug 4, 2017 | 11:32 PM
  #5  
wgripp's Avatar
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From: Valdosta, GA
Car: 1991 Trans Am GTA
Engine: L98(5.7 L TPI)
Transmission: 700r4(A4)
Axle/Gears: G80 RPO, 3:23s, Auburn Racer's Diff
Re: Timing cover gasket?

Thanks for the advice, gents! I'm now in search of a new water pump and the cloyes double roller timing chain set. If anyone has any part numbers or links, I would greatly appreciate it!
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