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| Forum name | Turbo/Nitrous Tech |
| Topic subject | Q for HRC about the exhaust manifold... |
| Topic URL | https://forums.2gnt.com/dcboard.php?az=show_topic&forum=i8&topic_id=3554 |
3554, Q for HRC about the exhaust manifold... Posted by BLKOUT, Apr-07-01 03:16 AM
I was putting my engine back together and low-and-behold, my exhaust manifold is warped. The mounting flange, where it mounts to the head, is shaped like a bannana. When you bolt one corner to the head there is approx. 1/8 gap between the manifold and the head on the other corner. Have you ever experienced this? What can I do about it? I thought about shaving the flange to make it flat but I'm worried that may make it too thin, don't really know. Just in case nothing can be done, how much will a new manifold be? I still can't believe that a piece of stainless that thick could bend. I would have thought if it got that hot then something else would have melted or warped (namely the head). Any help you can give me would be appreciated. Thanks.
Joe 97 GS w/ Hahn stage 2 Keep cruisin' & keep the shiny side up. http://joeseclipse.homestead.com

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3555, RE: Q for HRC about the exhaust manifold... Posted by HRC, Apr-08-01 01:31 AM
It is possible that a loose bolt on one end of the manifold allowed the warpage to occur during operation. Some warping is not unusual, but 1/8" inch suggests that something else may have been amiss, such as a loose bolt(s).
If you like, we can inspect the manifold, and machine it for you. We have the tooling to do this efficiently and economically, since we manufacture them here.
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3556, RE: Q for HRC about the exhaust manifold... Posted by BLKOUT, Apr-08-01 02:01 AM
I would appreciate that very much. Just tell me how to proceed with getting it to you and I will ship it Monday. Joe 97 GS w/ Hahn stage 2 Keep cruisin' & keep the shiny side up. http://joeseclipse.homestead.com

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3557, RE: Q for HRC about the exhaust manifold... Posted by BLKOUT, Apr-08-01 02:07 AM
Just a little addition to my previous post. If I include the fitting, could you also drill and tap it for my EGT? Just let me know what all this would cost. I really appreciate this. Joe 97 GS w/ Hahn stage 2 Keep cruisin' & keep the shiny side up. http://joeseclipse.homestead.com

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3558, RE: Q for HRC about the exhaust manifold... Posted by HRC, Apr-08-01 09:11 AM
I expect about $75 for all. Contact Dan: sales@turbosystem.com and ask for an RGA, refer to your conversation with Bill, and we will take it from there!
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3559, RE: Q for HRC about the exhaust manifold... Posted by BLKOUT, Apr-08-01 10:36 AM
I e-mailed Dan. I take it that it will be no trouble to drill&tap the mani for the EGT? BTW I'm the one who bought the FMIC off the RS. I can't wait to get my hands on that thing :)Thanks again. Joe 97 GS w/ Hahn stage 2 Keep cruisin' & keep the shiny side up. http://joeseclipse.homestead.com

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3560, RE: Q for HRC about the exhaust manifold... Posted by HRC, Apr-10-01 11:40 PM
LAST EDITED ON 11-Apr-01 AT 04:40 AM (PST)Yes, just let us know what thread size for the EGT probe (most are either 1/8 NPT or 1/4 NPT). Including the fitting will work.
We should ship the RS FMIC any day now: I sent a couple of the pipes out to get powdercoated, as they were looking a little shabby.
have fun! Bill
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