Maintenance TechThis forum is for discussion of all aspects of maintenance that should be performed on the FJ Cruiser to keep it operating at maximum efficiency.
Well, at that joint, that's as good as you're gonna get it. Aside from using another gasket there and completely bolting it up, you really can't do much else (not good as there will be absolutely no give at all). You sure you have leaks there? Mine doesn't leak there at all... its all the other joints that are leaking though.
Yeah, I waved my hand around the area and there's hot air blowing out from part of the top. I'm not really sure what to do, so I will bring it to a muffler shop when I have some time.
Are there any negative effects to small leaks? I have a 8-hour roundtrip drive this weekend. Everyone once in awhile i hear some fluttering, but it goes away.
Very small leaks usually are not a problem unless the leak is blowing hot exhaust gases on some part of your vehicle that will cause a problem (as in start a fire, melt the fuel line, or melt wires, etc...) I would definitely check all your leaks before I left and make sure I felt comfortable. The hot exhaust gases coming our of the cats can be as high as 1500 degrees F under certain conditions. And of course, carry a fire extinguisher.
DEWFPO
__________________ 2007 FJ, 5AT, Sun Fusion Yellow, CQ, UP, GY, RB, 2Q, EL, VS.
"Wanted - young, skinny, wiry fellows, not over 18. Must be expert riders willing to risk death daily. Orphans preferred"
Original newspaper add placed by William Hepburn Russell, founder of the The Pony Express
Very small leaks usually are not a problem unless the leak is blowing hot exhaust gases on some part of your vehicle that will cause a problem (as in start a fire, melt the fuel line, or melt wires, etc...) I would definitely check all your leaks before I left and make sure I felt comfortable. The hot exhaust gases coming our of the cats can be as high as 1500 degrees F under certain conditions. And of course, carry a fire extinguisher.
DEWFPO
I checked again and the leaks are small. The cause of the fluttering noise is due to the tailpipe touching the frame/"axle" thingy. I can move the tailpipe temporarily, but it eventually moves back. I may try getting the clamps from JEGS before I go to a muffler shop.
Yup. The bend pipe falling back down and touching the frame cross member was my initial problem and the main reason for my original post. I eventually solved it by cutting 4 small (1/4") grooves into the muffler end of the pipe and then using the clamps. I wrapped some mufflertape around the cut pipe to make sure there were no leaks (shouldn't be since the bend pipe inserts more than 1/4") and then tightening the clamps. I only used the JEGs band clamp on the joint prior to the muffler and it seems to have solved the leak.
__________________
2008 Toyota FJ Cruiser (Black Diamond)
2007 Toyota Camry
1993 Lexus SC300 (Diamond White Pearl)
1999 Dodge Caravan
After installing this exhaust, it's clear that the install is easier if you disregard part of JBA's instructions. It was far easier to remove the rear-most bolts (which hold the tailpipe to the muffler) by first unbolting the spring loaded bolts and taking the entire system off the hangers. This provides more room to get to the difficult to remove bolts on the tailpipe.
It sounds great! Quiet at idle, by 1500rpm it has a nice groan, throaty from 3000 rpm and up.
I'm unhappy the muffler isn't a perfect bolt-on and JBA even recommends welding the parts together, but with a little patience you can get the system in place and it will not bump against the frame or suspension components. It was worthwhile to get one person pushing the muffler up while the other person gets the tailpipe routed and placed to avoid rubbing. So far, the only spot with a leak, and it's minor, is at the back end of the muffler can. It really only leaks at medium throttle, at idle and WOT it's flowing right through with no leak.
Hopefully running it for a couple hours offroad today will heat it up and get the parts to expand and bind a tiny bit more. Plus a little mud on the pipes might seal it up to
[quote=superbox;1068623]After installing this exhaust, it's clear that the install is easier if you disregard part of JBA's instructions. It was far easier to remove the rear-most bolts (which hold the tailpipe to the muffler) by first unbolting the spring loaded bolts and taking the entire system off the hangers. This provides more room to get to the difficult to remove bolts on the tailpipe.
QUOTE]
That's a great tip! I bet you could can get an impact gun on those tailpipe bolts by doing it that way.
2007 FJ, 5AT, Sun Fusion Yellow, CQ, UP, GY, RB, 2Q, EL, VS.
"Enjoying the Journey"
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