22re Exhaust flang gasket problem.

PirateFins · 11-04-2005, 07:38 AM

I can't imagine I am the only one that might be going thru this but here goes. I am having to replace the doughnut gaskets for the exhaust flange between the manifold and down pipe once a year. They keep blowing out and creating a leak where the 2 parts meet. Anyone else having a problem like this? I can't believe I am the only one. What do you think might be causing this? The truck is not running lean / hot. I physically looked at both pieces in our machine shop and checked the flatness of both surfaces. The last time I put it together I had it out of the truck and made sure everything was tight. Any suggestions? This is getting old, and I hate sounding like a old VW Beetle when driving down the road.

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kyle_22r · 11-04-2005, 02:23 PM

is everything staying tight? maybe use some lock washers under the nuts, my trucks have had problems with the nuts or studs working loose and blowing the gaskets.

Elton · 11-05-2005, 01:28 PM

buy a header

farmerj · 11-05-2005, 05:34 PM

I finally had to jam-nut my flange bolts. Only way to have kept them tight.

PirateFins · 11-07-2005, 05:51 AM

Everything is staying nice and tight. And yes I have added both lock washers, and double nutted (thought they were backing out). Oh and they are the OEM gaskets (not aftermarket).

Elton I'd gladley buy a header as soon as you send the $300+ my way, since I don't have the money for it, and I'm having a hard time justifying the expenditure on a truck w/ 250k miles on it. So I was trying to fix the existing equipment.

farmerj · 11-07-2005, 05:57 AM

Are all your hanger brackets in place? Specifically the one off the bell housing?

11-04-2005, 02:23 PM	#2 (permalink)
kyle_22r Registered User Join Date: Mar 2003 Location: Lacey, WA Posts: 3,992	is everything staying tight? maybe use some lock washers under the nuts, my trucks have had problems with the nuts or studs working loose and blowing the gaskets. __________________ 1998 tacoma, 3RZ-FE, 5 speed, 30x9.5R15 M/Ts past toys: 1984 4x2 1979 4x4 1991 4x4

11-05-2005, 01:28 PM	#3 (permalink)
Elton Contributing Member Join Date: Jul 2005 Location: Siletz,Oregon Posts: 10,647	buy a header __________________ My Truck 98 4runner SR5 3.4L 5spd 4x4 E-Locker Mods Mom 07 Tundra d-cab limited 5.7L 4x4 auto sister 92 pickup SR5 X-cab 3.0L 5spd 4x4 Papa 89 Pickup SR5 X-cab 4x4 3.0L 5spd/98 4runner SR5 4x4 auto 3.4L R.I.P 91 4runner SR5 4x4 3.0L 5spd Totaled 5/13/06 My Wreck

11-05-2005, 05:34 PM	#4 (permalink)
farmerj Registered User Join Date: Dec 2004 Location: Central Minnesota Posts: 456	I finally had to jam-nut my flange bolts. Only way to have kept them tight. __________________ Life is too short to have to work.... RIP - 4 July 2008 - '88 4Runner, Audiovox Cruise Control,Valvoline Full Synthetic Gear oil, SR5 instrument cluster, '95 4Runner Seats, Rear U-bolt Flip

11-07-2005, 05:57 AM	#6 (permalink)
farmerj Registered User Join Date: Dec 2004 Location: Central Minnesota Posts: 456	Are all your hanger brackets in place? Specifically the one off the bell housing? __________________ Life is too short to have to work.... RIP - 4 July 2008 - '88 4Runner, Audiovox Cruise Control,Valvoline Full Synthetic Gear oil, SR5 instrument cluster, '95 4Runner Seats, Rear U-bolt Flip

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