exhaust manifold sealer?
#1
exhaust manifold sealer?
Hey guys,
My 4Runner had an annoying little exhaust leak, so I decided to fix it the other day. Found another manifold, cleaned it, had it planed, fixed/helicoiled the studs in the head, got a new gasket and flange gasket donuts, and bolted it all down. Still leaked, but it was a completely different tone. Just a side note I was torqueing down the 14mm nuts from the center out with very gradually increasing torque (probably 5 or 6 runs, finishing at maybe 35 ft-lb or torque)
So yesterday I tried it again, reused the old gasket (had only driven like 10 miles with it) and it's the same story. The surface of the head may very well be a little warped and maybe that's why I'm having no luck.
For a final try here's my idea: take it all off again, get a NEW gasket and NEW flange gaskets and coat the gasket on either side with some sort of high-temp sealant like Ultra Copper Permatex.
I'd like to get some opinions on this project...
My 4Runner had an annoying little exhaust leak, so I decided to fix it the other day. Found another manifold, cleaned it, had it planed, fixed/helicoiled the studs in the head, got a new gasket and flange gasket donuts, and bolted it all down. Still leaked, but it was a completely different tone. Just a side note I was torqueing down the 14mm nuts from the center out with very gradually increasing torque (probably 5 or 6 runs, finishing at maybe 35 ft-lb or torque)
So yesterday I tried it again, reused the old gasket (had only driven like 10 miles with it) and it's the same story. The surface of the head may very well be a little warped and maybe that's why I'm having no luck.
For a final try here's my idea: take it all off again, get a NEW gasket and NEW flange gaskets and coat the gasket on either side with some sort of high-temp sealant like Ultra Copper Permatex.
I'd like to get some opinions on this project...
#2
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maybe try these gaskets ? http://www.remflex.com/
#4
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manifold leak
I seriously doubt any sealer, even the Permatex will hold up to the heat and pressure. If resurfacing the head surface isn't an option right now, on a budget I would be tempted to possibly used two gaskets and double them up.
#5
and have you gona after it with the wetstone trick, granted if its leaking its probably more than you'd ever get like that, but worth a shot, for the effort, course thats probably harder to do in the truck. lol.
#7
Come on, its oh so easy out of the truck... lol.
i know, just yank your motor out of there, and we'll tear into it when i come up...
EDIT: I know I know, nitrile gloves and bare feet, only in the south. lol.
i know, just yank your motor out of there, and we'll tear into it when i come up...
EDIT: I know I know, nitrile gloves and bare feet, only in the south. lol.
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#8
if all else fails man, here is a good consition 22R head for sale. (guy also has another head that needs rebuilding, and a block, also)
https://www.yotatech.com/forums/f107...r-head-120566/
https://www.yotatech.com/forums/f107...r-head-120566/
#9
I used that permatex ultra copper on my downey headers and it held up fine. when I took the headers off two years later when I parted out the truck the permatex was still in excellent shape, actually still holding the headers on tight after i took the bolts out. the permatex wasn't dried out or burnt, still could peel it off (rubbery...)
#10
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#11
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Run Forest Run!
#12
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I just used the Ultra Copper Permatex on my header that was leaking like you wouldn't believe. So far it has been 2 weeks and all is quiet. I put a layer on the head, then gasket (toyota), another layer and finally the header. I also used it on the 3 EGR tube connections.
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