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#1
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patching an exhaust leak
I have an exhaust leak on one of my pre-cats, and my inspection is about to be due. I know there is such an animal as an exhaust patch kit, but I was wondering if JBWeld would be able to survive the heat of the exhaust, or some similar product.
any thoughts? Skip
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'95 SVX L - Laguna blue 126,000+ miles '89 XT - some sort of sun bleached blue '00 Hyundai Sonata- charcoal gray (hers) |
#2
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You have to cut out the perforated metal pipes, and replace them. Since the pipes are only 1.61 inches in diameter there, you probably have to take it to a welding/exhaust shop that you trust, and have them fix it for you. Hopefully they can fix the rusted tube, or more likely just weld in , say a 1,3/4" tube, about 4" long and just replace the flex coupler. This is assuming you want to do this cheaply.
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www.svxfiles.com The first SuperCharged SVX, the first 4.44 gears, the first equal length headers, the first phenolic spacers, the first Class Glass fiberglass hood, the first with 4, 4.44s in his driveway Fiberglass Hood thread My locker 4.44 Swap link |
#3
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Hi Tom,
Would flex coupler = exhaust gasket on subaruparts.com?
__________________
Cheers! Gordon 1997 Ebony #308 113k "The Black Diva"SOLD 1992 Black over Liquid Silver 152k SOLD 1992 Ebony 251k 444 SOLD 1999 Silver SLK230 134k SOLD 1997 Green Outback 137k SOLD 2013 Honda Accord I4 SOLD 2015 Subaru Crosstrek 30k 2018 Tesla M3 30k |
#4
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Once the exhaust is rusted through, it's pretty tough to weld It doesnt ground well, and since it's rusted thin, you tend to burn through alot
give welding it a try, but odds are you're probly better off having someplace make you new front pipes. You can order resonators in place of the cats, and it ends up being fairly inexpensve
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R.I.P Cool Signature. You're gone but not forgotten. I mean, sure, I kindof don't remember some of the finer details..but I remember you were funny, and at one point you said spaghetti in Dutch....but definantly not forgotten |
#5
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Wouldn't it be nice if we could do a group buy, maybe from SVXFILEs,of the E3 exhaust pipes..(hint,hint...)
__________________
Cheers! Gordon 1997 Ebony #308 113k "The Black Diva"SOLD 1992 Black over Liquid Silver 152k SOLD 1992 Ebony 251k 444 SOLD 1999 Silver SLK230 134k SOLD 1997 Green Outback 137k SOLD 2013 Honda Accord I4 SOLD 2015 Subaru Crosstrek 30k 2018 Tesla M3 30k |
#6
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I've patched small holes and leaks in exhaust with JB Weld. My ex-wife backed into a curbe and severed the pipe between the cat and the muffler. I took a 2" pipe, cut it down the middle, put it over her pipe to hold it together, used 2 hose clamps to hold it in place, jb weld all over it, let it dry, started it, found tiny holes i had missed, patched them, and it was good as new(unless you actually looked at it...)
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*No SVX at the moment...* 1987 Winnebago Elandan 35' 2001 Yamaha Roadstar 1600 2004 Ford Excursion Eddie Bauer, 6.0litre Power Stroke Diesel - Daily Driver. Life should NOT be a journey to the grave with the intention of arriving safely in an attractive and well-preserved body, but rather to skid in sideways, scotch in one hand, body thoroughly used up, totally worn out and screaming HOOOOYA !!!!! |
#7
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I just used some cold weld glue stuff that is good to 2400F. bought it at advanced auto. A friend has it on his car for over six months now and it is holding. The pipe gets cleaned off and then the stuff put on. Then let it sit for 4 hours. It gets rock hard. Then start it up and the heat cures it. The pipe on my SVX is leaking the same place yours is leaking, bottom of the pipe between the heat shield bracket and flange. I'll get the name posted when I get home.
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May your transmission live forever. SuperbVehicleXtraordinary Proud sponsor of a 1992 SVX. |
#8
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Mine is doing the exact same thing on the driver's side. Between the cat and the flange. Mine has actually separated and I have to take off the heat shield to see what's rotted through. I'd like to replace the pipe from the cat to the flange, but without a solid one to use as a template, I'm not sure how a pipe bender would get the curve correct.
Eventually I'll take one off the other car and take them both in to have a pipe bent up. Maybe I'll price getting a dozen pipes and sell them to others at cost. I wouldn't hold your breath for them, though. I tend to be a little slow at getting things done. Doug
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1992 LS Touring (6/91) - Currently undergoing a five speed swap Black over Claret with spoiler; 235,000 miles; Mods: 2002 Legacy 5 speed, ACT Pressure Plate, Excedy Clutch, Short Throw Shifter, Aussie Powerchip 1992 LS Touring (6/91) Black over Claret with 2.5" setback spoiler; 202,000 miles; Mods: B&M Cooler 1994 LSi (4/93) Bordeaux Pearl; 198,000 miles; Mods: Weight reduction. 1969 Mustang GT Convertible 1970 Mustang Convertible 2000 Ford Excursion Sola lingua bona est lingua mortua. My Locker |
#9
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If you get some cat to flange pipes, count me in! Will they be mandrel bent or crush?
__________________
Cheers! Gordon 1997 Ebony #308 113k "The Black Diva"SOLD 1992 Black over Liquid Silver 152k SOLD 1992 Ebony 251k 444 SOLD 1999 Silver SLK230 134k SOLD 1997 Green Outback 137k SOLD 2013 Honda Accord I4 SOLD 2015 Subaru Crosstrek 30k 2018 Tesla M3 30k |
#10
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This stuff is called "ThermoSteel" CarGo Part# 18003
Made by Blue Magic, Inc Conroe Texas The stuff I left out since Saturday is hard as a rock They claim it can be machined or drilled or sanded just like metal Sand balsting is recommended before application It claims to have no hazarderous chemicals no VOC's Take care, John
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May your transmission live forever. SuperbVehicleXtraordinary Proud sponsor of a 1992 SVX. |
#11
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actually, my leak is a split on the seam on the pre-cat, I put jbweld on the seam, and I will see how it does tomorrow I guess.
Skip
__________________
'95 SVX L - Laguna blue 126,000+ miles '89 XT - some sort of sun bleached blue '00 Hyundai Sonata- charcoal gray (hers) |
#12
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Quote:
I'll post the specs before I have any extras made.
__________________
1992 LS Touring (6/91) - Currently undergoing a five speed swap Black over Claret with spoiler; 235,000 miles; Mods: 2002 Legacy 5 speed, ACT Pressure Plate, Excedy Clutch, Short Throw Shifter, Aussie Powerchip 1992 LS Touring (6/91) Black over Claret with 2.5" setback spoiler; 202,000 miles; Mods: B&M Cooler 1994 LSi (4/93) Bordeaux Pearl; 198,000 miles; Mods: Weight reduction. 1969 Mustang GT Convertible 1970 Mustang Convertible 2000 Ford Excursion Sola lingua bona est lingua mortua. My Locker |
#13
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Why not just cut the pre-cats and flanges and replace with straight pipes.
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#14
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Quote:
__________________
1992 LS Touring (6/91) - Currently undergoing a five speed swap Black over Claret with spoiler; 235,000 miles; Mods: 2002 Legacy 5 speed, ACT Pressure Plate, Excedy Clutch, Short Throw Shifter, Aussie Powerchip 1992 LS Touring (6/91) Black over Claret with 2.5" setback spoiler; 202,000 miles; Mods: B&M Cooler 1994 LSi (4/93) Bordeaux Pearl; 198,000 miles; Mods: Weight reduction. 1969 Mustang GT Convertible 1970 Mustang Convertible 2000 Ford Excursion Sola lingua bona est lingua mortua. My Locker |
#15
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Anyone know of a source for the precat to main cat flanges, or 1 5/8 OD to 2"ID adapters to splice in a Magnaflow 007? I Google searched, tried JEG's, no luck...
Mine has the condition Tom has described, leaky pipes just before the flanges into main cat. Got a Magnaflow 007 for $65 delived! form Performance Peddlers.
__________________
Cheers! Gordon 1997 Ebony #308 113k "The Black Diva"SOLD 1992 Black over Liquid Silver 152k SOLD 1992 Ebony 251k 444 SOLD 1999 Silver SLK230 134k SOLD 1997 Green Outback 137k SOLD 2013 Honda Accord I4 SOLD 2015 Subaru Crosstrek 30k 2018 Tesla M3 30k |
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