 Exhaust leaks, Any tricks to getting the HEs to seat properly? |
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| KaptKaos |
 Apr 9 2008, 12:02 AM
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#1
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Family  Group: Members Posts: 4,009 Joined: 23-April 03 From: Near Wausau Member No.: 607 Region Association: Upper MidWest  |
I have had my heat exchangers off and on now about 4 times, trying to make sure that they are seated and tight. I have checked the copper gasket, put in new ones and still I get popping or back firing on decel.
Tonight I pulled the driver's side and flat filed the tops of the HEs to make sure I have a good surface. Nothing drastic, just trying to make it flat and smooth. Is there any trick to getting everything buttoned up properly? |
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| rjames |
Apr 9 2008, 12:35 PM
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#2
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I'm made of metal Group: Members Posts: 4,249 Joined: 24-July 05 From: Shoreline, WA Member No.: 4,467 Region Association: Pacific Northwest 
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Do as the Cap'n says. Use one and only one copper gasket for each port.
I also tightened the exhaust nuts slowly in an alternating 'x' pattern to make sure the exchanger was being fitted evenly. Here is a great link with picutures on the entire process. Prepping and Installing Heat Exchangers Also, Gint makes a good point. How do you know that the popping & backfiring is a result of an exhaust leak at the exchanger(s)? I had a huge exhaust leak at the exchanger due to a gasket not being seated properly, and my car never popped or backfired. Are you sure you don't have any holes in the exhaust system (muffler included)? |
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Posts in this topic
KaptKaos Exhaust leaks Apr 9 2008, 12:02 AM
sww914 Anneal the copper seals before you bolt up the exh... Apr 9 2008, 12:56 AM
KaptKaos
Anneal the copper seals before you bolt up the ex... Apr 9 2008, 01:07 AM Challe Take them out, heat them as sww914 says, let them ... Apr 9 2008, 01:46 AM porsche914gt Check your intakes at the head. A leak there can m... Apr 9 2008, 03:52 AM Gint :agree: Popping out the exhaust does not necessari... Apr 9 2008, 07:06 AM Garland I used two copper gaskets, instead of one. took ca... Apr 9 2008, 11:37 AM Cap'n Krusty
I used two copper gaskets, instead of one. took c... Apr 9 2008, 12:06 PM Gint BTW, torching an asbestos filled copper crush wash... Apr 9 2008, 04:00 PM Mike914 And exactly 'who in the world' suggested t... Apr 9 2008, 11:46 PM KaptKaos
Also, Gint makes a good point. How do you know th... Apr 9 2008, 12:50 PM jsayre914 I just installed my stailless HEs on my car last n... Apr 9 2008, 01:05 PM Rand Don't worry about it jsayre914. Annealing is n... Apr 9 2008, 01:32 PM Gint And exactly 'who in the world' suggested t... Apr 10 2008, 08:55 AM purple Can't you just get the copper rings from jake ... Apr 10 2008, 11:57 AM Rand I'm not speaking for Jake, but I'll bet a ... Apr 10 2008, 01:17 PM Gint
I'm not speaking for Jake, but I'll bet a... Apr 10 2008, 05:02 PM Rand
I'd have to re-read this whole thread, but I ... Apr 10 2008, 05:12 PM Challe Cap'n is absolutly right, torching an asbestos... Apr 10 2008, 02:58 PM SLITS Must be that time of the month again. Apr 10 2008, 05:14 PM KaptKaos I need to redo it because I have a leak somewhere.... Apr 10 2008, 06:57 PM tod914 "I've applied some Loctite 518 to both si... Apr 10 2008, 07:07 PM purple
"I've applied some Loctite 518 to both s... Apr 11 2008, 03:56 PM |
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