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Online Shimy87

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exhaust tick
« on: October 19 2015, 07:47:48 PM »
Back to this one. Seems most like to not use gaskets. What's an effective way to true up manifold surface in a DIY manner?
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87 GN, K&N cold air, gutted cat, TT 5.7 chip, AFPR, 340 Walbro w/ hotwire, 60 LBS injectors, 981 valve springs, 206/206 Cam, RJC Powerplate, LS1 MAF & translator, Vacuum brakes, Hellwig rear sway bar, Energy suspension poly bushings, Razors Alky, Pypes exhaust, 5931 turbo, CK9.5 converter

Offline Scoobum

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Re: exhaust tick
« Reply #1 on: October 19 2015, 08:12:13 PM »
Leave the front and rear header bolts in...remove the others. The header gaskets will drop in. Reinstall the bolts and cinch them up via the proper torque sequence.
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Offline Scoobum

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Re: exhaust tick
« Reply #2 on: October 19 2015, 08:29:29 PM »
Dan and I had a DS header warped to fuck a couple years back. Sent it out to have it machined...and it was still a mess. Our solution was to cut it to relieve the stress. No more leak.
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Offline gusszgs

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Re: exhaust tick
« Reply #3 on: October 20 2015, 06:21:23 PM »
I had the typical DS header 3-5 crack.....weld ed it up with a gusset for support. Flange got warped during the welding so I took it to a reputable machine/welding shop and they machined it laser straight. No gasket no leaks
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Online Shimy87

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Re: exhaust tick
« Reply #4 on: October 20 2015, 07:02:37 PM »
Tore the bitch apart tonight, drivers side no cracks, no leaks. Had to take the down pipe out to drop out the x over pipe. Found 2 leaks where it connects to the passenger side header. Appears where they flared the header for the joint they left a bit of a ridge and I think that might have caused it? Filed it down to a nice smooth socket again and will put back together tomorrow. Should I use high temp silicone at these joints?
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87 GN, K&N cold air, gutted cat, TT 5.7 chip, AFPR, 340 Walbro w/ hotwire, 60 LBS injectors, 981 valve springs, 206/206 Cam, RJC Powerplate, LS1 MAF & translator, Vacuum brakes, Hellwig rear sway bar, Energy suspension poly bushings, Razors Alky, Pypes exhaust, 5931 turbo, CK9.5 converter
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