Plastic coolant elbow - what needs to come off to replace - 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 05-28-2006, 12:28 AM   #1
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Default Plastic coolant elbow - what needs to come off to replace

Ok, just got through with the water pump replacement et al on this series II L36, got it all back together, filled up the coolant and noticed dripping from the coolant bypass plastic elbow. Sparring you the 4 letter word tirade for 30 minutes, I know the altenator will need to come off, but will I have to take the water pump off to also take the tensioner off and get the old elbow out to put a new one on?
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Old 05-28-2006, 05:57 AM   #2
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Nope you just have to get the tensioner assembly off. So the alt, and I think the p/* pump has to come off and the assembly should slide off.
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Old 05-28-2006, 12:06 PM   #3
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The p/* pump doesn't have to come off. You do have to remove the alternator. I didn't disconnect the alt wires; I just unbolted it and flipped it up on top of the intake.
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Old 05-28-2006, 03:44 PM   #4
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Default Got it off - Gasket or Broken?

Thanks for the quick replies.I found the two bolts and wiggled and finally got it off. Now for the next question. Where the inlet pipe the one that slips inside the water pump housing, is this a gasket or did I break the sleeve that slips inside?
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Old 05-29-2006, 12:34 AM   #5
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Default Broken Tensioner water inlet tube

Got it figured out. The pipe that goes into the water pump housing broke where it is grooved for the O ring. Had to use a TAP to get the rest of it out. Have put it all together and so far so good.
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