george_park Posted September 26, 2008 Share #1 Posted September 26, 2008 Anyone have any idea how hot it gets where the mufflers join the stock pipes? I put some permatex 1B form a gasket on and I'm wondering if it's going to burn away... 400F limit. Thanks, gp Link to comment Share on other sites More sharing options...
SaltyDawg Posted September 26, 2008 Share #2 Posted September 26, 2008 As hot as AtlantaDragonslayer on shipping charges. Link to comment Share on other sites More sharing options...
Ozark Posted September 26, 2008 Share #3 Posted September 26, 2008 As hot as AtlantaDragonslayer on shipping charges.:no-no-no: Link to comment Share on other sites More sharing options...
george_park Posted September 26, 2008 Author Share #4 Posted September 26, 2008 Any ideas of temp in an objective system of measurement? Link to comment Share on other sites More sharing options...
Yammer Dan Posted September 26, 2008 Share #5 Posted September 26, 2008 Hot enough that I can't find anything to patch a split in bottom of the collector. Blows everything right out of there. How hot is a exhaust?? I think Pematex has a Hi-Temp one that goes about 600 degrees. Blew it out too. Link to comment Share on other sites More sharing options...
BoomerCPO Posted September 26, 2008 Share #6 Posted September 26, 2008 Has anyone tried JB Weld on these exhaust system joints? I have seen this stuff hold up excellent on tractor exhaust systems. Link to comment Share on other sites More sharing options...
BuddyRich Posted September 26, 2008 Share #7 Posted September 26, 2008 This is for a different engine but I would say all are about the same since we are using gas as the fuel. http://www.ratwell.com/technical/Temps.html http://www.ratwell.com/technical/Temps/Exhaust.jpg Link to comment Share on other sites More sharing options...
AZSpyder Posted September 27, 2008 Share #8 Posted September 27, 2008 Has anyone tried JB Weld on these exhaust system joints? I have seen this stuff hold up excellent on tractor exhaust systems. I think JB weld is just normally used to hold the first generations together. Link to comment Share on other sites More sharing options...
GeorgeS Posted September 27, 2008 Share #9 Posted September 27, 2008 (edited) I measured it on my Busa. It hit about 375 at ( temp gauge ) red line, with engine idleing. 2 inches from the input to the muffler. Edited September 27, 2008 by GeorgeS Link to comment Share on other sites More sharing options...
Yammer Dan Posted September 27, 2008 Share #10 Posted September 27, 2008 Has anyone tried JB Weld on these exhaust system joints? I have seen this stuff hold up excellent on tractor exhaust systems. Blew it out too!! Link to comment Share on other sites More sharing options...
GeorgeS Posted September 27, 2008 Share #11 Posted September 27, 2008 Why not just get a new set of stock Seals ?? Thats what I did. You need 6 total at the canistor. Link to comment Share on other sites More sharing options...
Yammer Dan Posted September 27, 2008 Share #12 Posted September 27, 2008 My collector is split across the bottom. Invitation to pull it remove baffles and weld back up but I was trying to make it last til winter. Don't sound that bad but loud. Link to comment Share on other sites More sharing options...
1BigDog Posted September 28, 2008 Share #13 Posted September 28, 2008 Maybe you can get by with that exhaust pipe wrap that you see on choppers..... Link to comment Share on other sites More sharing options...
Mordalo Posted September 28, 2008 Share #14 Posted September 28, 2008 If you're blowing out JBWeld, it may not be a temp issue. I put hi-heat Permatex copper where my slip-ons meet the manifold and that worked great. On my car, I put JBWeld where the Manifold meets the Caty, and that got me through emissions testing just fine (I let my 18-year old daughter take the car in so that the kid at the lube shop wouldn't focus so hard on the visual inspection of the car... shameless I know) so I'm thinking it may be the size of the leak, not the temp rating of the product you're trying to plug it with? Link to comment Share on other sites More sharing options...
Yammer Dan Posted September 28, 2008 Share #15 Posted September 28, 2008 Crack is about 4 inches long and it flexes enough someway to blow out everything I tried. Guess pull and weld is next. Link to comment Share on other sites More sharing options...
george_park Posted September 28, 2008 Author Share #16 Posted September 28, 2008 I put a pair of baron's slip on's so this is all where the muffler meets the exhaust pipe. On the stock pipes there are gaskets, on the Baron's pipes it's just metal to metal with a clamp. So far I just smell a slight burning smell (don't know if that is normal) from the Permatex but it's still in there, between the pipes, muffler flanges and the clamps... The stuff I put on only goes up to 400F so I don't know if that will cut it. gp Link to comment Share on other sites More sharing options...
Mordalo Posted September 29, 2008 Share #17 Posted September 29, 2008 But if your welding skill is anything like mine, the slag will work about as well as JBWeld does. Link to comment Share on other sites More sharing options...
Mordalo Posted September 29, 2008 Share #18 Posted September 29, 2008 I also have Baron Slip-ons. And The Permatex copper worked fine for me. The burning smell is normal. They coat the pipes with a lubricant to keep it from scratching, and if I remember correctly, that stuff was on the inside as well. Not sure how you're going to scratch the inside... but then again if there's a way to scratch chrome, I've found it. Link to comment Share on other sites More sharing options...
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