exhaust gasket issue.
#1
exhaust gasket issue.
i 've got a 1990 b2600i with a shot exhaust system. my first step is replacing the gasket at the manifold and down-pipe. the one i got from autozone was a fel-pro # 60817 (manifold flange) although it more resembled the fel-pro # 60831 which is designated for the converter. the thing is a few weeks after install and a bit of driving it appears have begun to fail and leak.
my question is: why is this new gasket burning up? the material it's made of is beginning to ash and one side is almost blown out.
should i get a beck/arnley one instead? (# 039-6382)
[/b]thanks
[/b]
my question is: why is this new gasket burning up? the material it's made of is beginning to ash and one side is almost blown out.
should i get a beck/arnley one instead? (# 039-6382)
[/b]thanks
[/b]
#3
RE: exhaust gasket issue.
sorry let me clarify..
this is the gasket on the manifold flange to the downpipe, not at the head it self. there's only two bolts on this flange.
as an update, i soon realized my mistake. when i replaced the gasket i neglected to remove all of the remnants of the previous gasket. the pieces left over were actually welded into the flange of the manifold. making it difficult to realize they were there. having not properly cleaned the flange allowed the gasket to burn prematurely and therefore leak. to remedy the situation i removed the exhaust manifold (surprisingly easy) and used a dremel to remove the old gasket bits. moral of the story, i'm an idiot and didn't do a thorough job the first time.
i do have another exhaust question though. i'm looking to replace my muffler with a bosal unit. i soon realized they specify a different mufflers for the 2wd than the 4wd. (2wd unit is $40 cheaper but looks identical, guess which one i'd like to use) this is in regard to the mid muffler not the one incorporated into the tailpipe. i plan on using a tailpipe off a 2200. apparently they were not burdened with a second muffler on their tailpipe.
my question is: is there really any difference in the two units? both are 1990 2600i long wheel base.
bosal 171-541 4wd bosal 171-533 2wd
this is the gasket on the manifold flange to the downpipe, not at the head it self. there's only two bolts on this flange.
as an update, i soon realized my mistake. when i replaced the gasket i neglected to remove all of the remnants of the previous gasket. the pieces left over were actually welded into the flange of the manifold. making it difficult to realize they were there. having not properly cleaned the flange allowed the gasket to burn prematurely and therefore leak. to remedy the situation i removed the exhaust manifold (surprisingly easy) and used a dremel to remove the old gasket bits. moral of the story, i'm an idiot and didn't do a thorough job the first time.
i do have another exhaust question though. i'm looking to replace my muffler with a bosal unit. i soon realized they specify a different mufflers for the 2wd than the 4wd. (2wd unit is $40 cheaper but looks identical, guess which one i'd like to use) this is in regard to the mid muffler not the one incorporated into the tailpipe. i plan on using a tailpipe off a 2200. apparently they were not burdened with a second muffler on their tailpipe.
my question is: is there really any difference in the two units? both are 1990 2600i long wheel base.
bosal 171-541 4wd bosal 171-533 2wd
#5
RE: exhaust gasket issue.
The second muffler in the tailpipe you describe is probably only a resonator and doesn't/shouldn't affect the backpressure, performance or mileage just mellow the tone a bit.
Fromthe pictures above it's hard to tell but it appears that the 2WD muff has a center outlet whereas the 4WD unit has a left side outlet...?? Also the front hanger looks shorter on the 4WD unit, perhaps because it hangs closer to the floor boards than the 2WD does??
#8
RE: exhaust gasket issue.
ORIGINAL: virgin1
The second muffler in the tailpipe you describe is probably only a resonator and doesn't/shouldn't affect the backpressure, performance or mileage just mellow the tone a bit.
Fromthe pictures above it's hard to tell but it appears that the 2WD muff has a center outlet whereas the 4WD unit has a left side outlet...?? Also the front hanger looks shorter on the 4WD unit, perhaps because it hangs closer to the floor boards than the 2WD does??
The second muffler in the tailpipe you describe is probably only a resonator and doesn't/shouldn't affect the backpressure, performance or mileage just mellow the tone a bit.
Fromthe pictures above it's hard to tell but it appears that the 2WD muff has a center outlet whereas the 4WD unit has a left side outlet...?? Also the front hanger looks shorter on the 4WD unit, perhaps because it hangs closer to the floor boards than the 2WD does??
regarding differences, i notice some of the same ones you mention. however, i'm hoping for a confirmation because i think the pictures leave too much unanswered.
thanks though.
Thread
Thread Starter
Forum
Replies
Last Post
BengalBrad
Mazda MX-3 and Mazda MX-6
38
03-31-2014 09:34 PM
mxteam
Mazda Protege
5
10-24-2007 06:52 AM
Veneluure
General Tech
1
07-20-2006 09:40 AM