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1. [Healeys] Arghhhhh ... (score: 1): Author: Bob Spidell <bspidell@comcast.net>; Date: Sat, 27 Mar 2010 15:19:13 -0700; I'm at my wits--what's left of them--end. I've replaced at least a half-dozen exhaust flange gaskets in the last couple years (the ones that go between the exhaust manifold and downpipes). I've flat-; /html/healeys/2010-03/msg00739.html (8,450 bytes)
2. Re: [Healeys] Arghhhhh ... (score: 1): Author: Mark J Bradakis <mark@bradakis.com>; Date: Sat, 27 Mar 2010 17:11:27 -0600; Is your exhaust system too tightly attached to the frame? That would cause undue stress on the manifold joint. mjb. _______________________________________________ Healeys@autox.team.net Donate: http; /html/healeys/2010-03/msg00743.html (6,985 bytes)
3. Re: [Healeys] Arghhhhh ... (score: 1): Author: richard mayor <mayorrichard@hotmail.com>; Date: Sun, 28 Mar 2010 01:59:57 +0000; It's very common in V-8 engines with headers to have gasket problems at the header flange that mates to the head. We use hi-temp silicone on both sides of the healer flange gasket. Check it frequentl; /html/healeys/2010-03/msg00749.html (10,455 bytes)
4. Re: [Healeys] Arghhhhh ... (score: 1): Author: Bob Spidell <bspidell@comcast.net>; Date: Sat, 27 Mar 2010 19:24:33 -0700; Just hung stock Healey style. I would think the flex unions would handle the stress--maybe not. Thanks for the tip. bs -- ** Bob Spidell San Jose, CA bspidell@comcast.net ** _________________________; /html/healeys/2010-03/msg00750.html (7,268 bytes)
5. Re: [Healeys] Arghhhhh ... (score: 1): Author: Bob Spidell <bspidell@comcast.net>; Date: Sat, 27 Mar 2010 20:15:08 -0700; Do you run a bead of the silicone sealant around the gasket, or smear a film on the entire surface? I got some Permatex Copper Hi-Temp RTV--will that work? Bob -- ** Bob Spidell San Jose, CA bspidel; /html/healeys/2010-03/msg00752.html (8,570 bytes)
6. Re: [Healeys] Arghhhhh ... (score: 1): Author: gene stigen <gstigen@msn.com>; Date: Sat, 27 Mar 2010 21:16:12 -0700; While working at turbo shop, sometimes very lean fuel mixture can cause flanges to expand,warp, etc. gaskets would blow or burn out quite often.I know Healey's aren't normally prone to that issue.Als; /html/healeys/2010-03/msg00753.html (10,255 bytes)
7. Re: [Healeys] Arghhhhh ... (score: 1): Author: Alan Seigrist <healey.nut@gmail.com>; Date: Sun, 28 Mar 2010 12:54:54 +0800; I don't think the nuts are supposed to be torqued all that tight, no more than 30 ft-lbs. Really just enough to compress lightly and get a good seal. Could this be your problem? Alan -- Sent from my; /html/healeys/2010-03/msg00755.html (10,201 bytes)
8. Re: [Healeys] Arghhhhh ... (score: 1): Author: Bob Spidell <bspidell@comcast.net>; Date: Sat, 27 Mar 2010 22:14:13 -0700; Good thought, Alan. I haven't torqued them too hard--afraid of stripping the studs. Good idea to use a torque wrench--hadn't thought of that. bs -- ** Bob Spidell San Jose, CA bspidell@comcast.net **; /html/healeys/2010-03/msg00756.html (7,998 bytes)
9. Re: [Healeys] Arghhhhh ... (score: 1): Author: "Mark LaPierre" <lapierrem@sbcglobal.net>; Date: Sun, 28 Mar 2010 07:30:21 -0400; Bob, without a nice cushy car lift how do you get to that area to test for leaks with the car running. I am experiencing some leaks from my all new exhaust system but am at a loss as to how to get to; /html/healeys/2010-03/msg00762.html (9,955 bytes)
10. Re: [Healeys] Arghhhhh ... (score: 1): Author: Oudesluys <coudesluijs@chello.nl>; Date: Sun, 28 Mar 2010 15:37:14 +0200; Have both flanges machined absolutely flat.(this can hardly be done with a file, sorry) and make up a red copper gasket yourself from a plate of 1,5mm thick and aneal it. Try using either stainles s; /html/healeys/2010-03/msg00767.html (9,980 bytes)
11. Re: [Healeys] Arghhhhh ... (score: 1): Author: Bob Spidell <bspidell@comcast.net>; Date: Sun, 28 Mar 2010 07:44:54 -0700; I know I have a leak when the exhaust starts popping going downhill with my foot off the throttle; i.e. engine braking. I have the car up on jackstands for its annual going-over prior to a long road; /html/healeys/2010-03/msg00775.html (10,049 bytes)
12. [Healeys] Arghhhhh ... (score: 1): Author: S and T Miller <stmiller96@hotmail.com>; Date: Sun, 28 Mar 2010 11:05:51 -0400; An easy way to check it without the car running is use a halloween fog machine and pump the fog back through the tail pipe. Then use a flashlight and watch for fog exiting at on the joints. Very easy; /html/healeys/2010-03/msg00777.html (9,712 bytes)
13. Re: [Healeys] Arghhhhh ... (score: 1): Author: richard mayor <mayorrichard@hotmail.com>; Date: Sun, 28 Mar 2010 17:57:54 +0000; Bob, Run a 1/8th inch bead around the gasket hole - both sides. Install but not too tight.You don't want to squish all of the RTV out of the joint. Wait 24 hours and then tighten the nuts up snugly.; /html/healeys/2010-03/msg00779.html (10,002 bytes)
14. Re: [Healeys] Arghhhhh ... (score: 1): Author: WILLIAM B LAWRENCE <ynotink@msn.com>; Date: Thu, 1 Apr 2010 03:33:59 +0000; I wonder if the flex sections of the down pipes could be too stiff, maybe rusted tight. That might cause relative motion between the flanges. Bill Lawrence http://autox.team.net/mailman/options/heale; /html/healeys/2010-03/msg00857.html (9,461 bytes)
15. Re: [Healeys] Arghhhhh ... (score: 1): Author: I Erbs <eyera3@gmail.com>; Date: Thu, 1 Apr 2010 08:16:04 -0700; The muffler shop welded my flex sections to the muffler. Maybe your motor mounts are old and causing extra engine flex and movement that is is being transferred to the pipes.... -- I Erbs Portland, O; /html/healeys/2010-04/msg00005.html (9,960 bytes)
16. Re: [Healeys] Arghhhhh ... (score: 1): Author: Bob Spidell <bspidell@comcast.net>; Date: Thu, 1 Apr 2010 15:34:03 +0000 (UTC); Another good data point. A Lister--who replied to me privately--informed me that the original BN1 downpipes had a 1/4" extension into the manifold, presumably to keep the gaskets from taking the brun; /html/healeys/2010-04/msg00006.html (7,847 bytes)

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