O-rings in Dorman UIM PN# 615-180 for 1997 Pontiac Bonny - Page 2 - 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 02-19-2006, 12:05 PM   #11
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Quote:
Originally Posted by LeifW
This is what I got with my Dorman. Should I have gotten some additional stuff?






LeifW
Hey, Leif, can I have your old, failed UIM? I need some cores for sleeving.

I'll be glad to pay postage. PM me if it'* available.

Thanks!
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Old 02-19-2006, 02:28 PM   #12
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Quote:
Originally Posted by Bob Dillon
Quote:
Originally Posted by LeifW
This is what I got with my Dorman. Should I have gotten some additional stuff?






LeifW
Hey, Leif, can I have your old, failed UIM? I need some cores for sleeving.

I'll be glad to pay postage. PM me if it'* available.

Thanks!
Sure. When we do the work, I'll make sure to put it aside.

LeifW
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Old 02-19-2006, 10:02 PM   #13
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Yep..that'* a dorman intake. Comes with all the goodies..

I was surprised when I saw it all.
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Old 02-19-2006, 11:17 PM   #14
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Quote:
Originally Posted by LeifW
Quote:
Originally Posted by corvettecrazy
I also got an instruction sheet but looks like you got everything.
I got the instruction sheet as well, but I didn't include it in the pictures. Did you get any additional O-rings as mentioned in this thread? I did not.

Leif
Sorry for the slow response back. In my Dorman box, there were 5 O-rings. These are shown in the attached photos. Everything below the horizontal line defined by the ruler was supplied with the Dorman. Also shown in the photos is the coolant bypass elbow and the fuel injector O-ring kit, both which I got from the dealer. The two right most Dorman O-rings look a lot like the Fuel Injector O-rings.




Frankley, I'm a bit disappointed in the Dorman folks that they couldn't make the effort to at least put in an itemized parts list detailing what the O-rings went to. I did get the one sheet instruction sheet which talks about the tightening of the UIM.

I'm at a loss as what to do with the EGR tube which was included in the Dorman kit. No directions were included as to what to do with it. At first I was expecting the part to fit inside the existing/original EGR tube and to have an interferance fit. But, the largest diameter of the Dorman tube is about .010" less in diameter than the I.D. of the original tube. See pic'*...





Anybody out there know what I'm supposed to do with this ?
I thought it would have been something like :

http://ken-co.com/manifold/plenumrepair.pdf

Finally, I have one more problem. It looks like I have some pitting on the lower intake manifold gasket surface where the LIM mates with the head, specifically around one of the coolant passages. See attached pic.





I'm worried that there is enough "errosion" of the surface to jepordize good sealing...
I was thinking of using either some J-B Weld epoxy or the epoxy that is reference in the "ken-co" kit referenced in the post earlier.

I need your guys help again.

Thanks,

Jack
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Old 02-20-2006, 09:38 AM   #15
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Jack, I would definitely want to fill those pitted areas if it were me. I've never used J-B Weld there, but think it should be adequate as long as you use the long cure type (original part no. 8265-*, good for 600*F) and not the rapid cure type.

I'm thinking that maybe that pitting is due to long exposure to coolant under the LIM gaskets, but that'* just a guess at this point.
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Old 02-20-2006, 12:41 PM   #16
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The Orange O rings are actually for the Coolant Elbow... Thge large black O ring id for the PCV valve.... I believe that the other 2 are for the Map Sensor...

I agree with Lash... If you use JB weld to seal it up use the long cure... It should be pretty resistant to the heat changes and will be as hard as a rock when it cures...

Any chance on having a machine shop repair that spot on the intake?

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Old 02-20-2006, 02:14 PM   #17
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Having repaired a Ford with Highlander with JB weld...I'm sure a spot would be fine. We actually machined it..then drilled and tapped it.. Stuff is great.
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Old 02-20-2006, 02:35 PM   #18
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Once you get it apart, you'll easily see where all the o-rings belong. Here'* a pic showing where the big o-ring goes...
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Old 02-20-2006, 02:50 PM   #19
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How about this thing ? I would guess it has something to do with the EGR tube but since it fits so loose in the existing tube which is pressed into the lower intake manifold section, I'm confused as to what to do with it.

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Old 02-20-2006, 03:21 PM   #20
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bonus?

CorvetteCrazy'* didn't have it.
The dormans don't seem to have a sleeve with them. it'* already part of the lower intake and the upper is merely composite.

Bob Dillion or Jr'* might know. They've seen tons of these.
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