UIM Job - 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 02-24-2008, 01:00 AM   #1
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Default UIM Job

Well Im half way through my UIM replacement. I quit for the night after a couple of hours, and Im planning to finish tomorrow. when I removed the upper bolts they were reletively loose (nowhere near 89 in. lbs.) also every bolt had some kind of white thread sealant WTF? we arent supposed to use thread sealant on the upper bolts are we? Also does anybody here torque the throttle body nuts to the 125 in. lbs. specd. in the book? Just wondering as this seemed high. Thanks in advance
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Old 02-24-2008, 01:06 AM   #2
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remember that that is inch pounds. not very much.

89 is only about 7.5 ft#*
125 is only about 10.5 ft#*
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Old 02-24-2008, 03:00 AM   #3
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A sealant (PTFE type) is not needed on UIM bolts, as they do not enter any water jackets.

I would recommend using a threadlocker, though.
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Old 02-24-2008, 04:27 PM   #4
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Thanks guys I know that it is only inch pounds i just wondered why they would be more than the manifold bolts. I'll just use the blue medium strength thread lock when i reinstall them.
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