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Stupid question.

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Old 06-11-2005, 12:08 PM
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Car: 1989 IROCZ
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Stupid question.

When I put the engine back in, the gasket set I got with it had 2 sets of intake manifold gaskets. One set had a square metal tab on one end. Which gaskets am I suppose to use? or does it matter?
Old 06-11-2005, 01:30 PM
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Car: 89 IrocZ
Engine: L98-ish
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Look at the intake and back of the head, don't think there's a waterjacket there, but been a long time since I had mine off...pretty sure yuo use the one with the tab in it.
Old 06-11-2005, 02:57 PM
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Forgive my ignorance, not really sure what a waterjacket is?
Old 06-11-2005, 06:58 PM
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That's where the coolant runs. Pretty sure you only have a passage on both sides in front of the intake, not the rear.

Once you have it off, hold the gasket up to the intake and you'll see what I mean.
Old 06-11-2005, 08:04 PM
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Ahh ok I getcha, on the gasket though, I matched both sets up to the intake and the metal tabs line up to the rear(window) of the intake. So just for S&Gs, what happens if you use the ones without the metal tab?
Old 06-11-2005, 09:11 PM
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Without the metal tab, the coolant has a place top start working against the metal...could lead to premature failure..dunno...kinda one of those things whenn you run non-exhaust crossover haed, you run the gasket with the tab as well...no experience in actually trying it to see if a problem develops, but why take a chance?
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