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08-20-2002, 07:50 AM | #1 |
Registered Member
Join Date: Jul 2002
Location: Maryland
Posts: 51
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need some help
I am redoing my exhaust, replacing my broken dynomax with a flowmaster catback. My question if I reuse the same old pipe, between the h-pipe to the muffler, is the joint between the h-pipe and this muffler pipe likely to leak? If so is there some kind of gasket I can put in it? The pipe still fits over the end of the hpipe fairly snugly, but not with a whole lot of overlap.
Also, while I have my car on jackstands, I am considering trying to fix my oil leak at the rear main seal. How difficult is this to fix and about how many hours would be expected for the first time attempting this? I have a Haynes manual and a fair assortment of tools. Thank for any help. Ryan
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'91 MUSTANG LX 5.0. Flowmaster Catback Exhaust, In Fender K&N air intake, timing advancement, high voltage coil, pheonix gold/kicker stereo, pro 5.0 shifter. |
08-20-2002, 08:08 AM | #2 |
Registered Member
Join Date: Oct 1998
Location: Suburban Chicago, Hanover Park
Posts: 695
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If the pipe isn't leaking now it shouldn't leak when you change the mufflers.
As far as the rear main seal, I wouldn't go in there just for that unless it's leaking badly. To get at it you have to remove the H-pipe, driveshaft, trans, bellhousing, clutch and flywheel. If your going to do all that it's best to do it when you need to replace the clutch so you don't have to do it twice. It's not too difficult of a job, just time consuming.
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My Ford Club http://www.midwestfords.org/ Best time N/A 12.9 @ 107 1.711 60' 125 shot - 12.04 @ 113 1.59 60' |
08-20-2002, 10:46 AM | #3 |
Registered Member
Join Date: Jun 1999
Location: Columbia Co, PA
Posts: 303
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A new Flowmaster catback kit will come with the tubes to connect the H-pipe to the mufflers.
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08-21-2002, 07:40 AM | #4 |
Registered Member
Join Date: Apr 2001
Location: Gallatin, Tn
Posts: 1,326
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Just some advice while your doing exhaust, be sure the jack stands are supporting the suspension, as in the car is sitting under load just as if it were on all four tires, this reduces the chance of an exhaust leak, if the car is supported on the frame the body and suspension will tweak a bit after putting it back on the ground, which causes the pipe to adjust.
If you have power tools the main seal should take around 4 hours, if not you will be there for about 9! If you decide to do it, you should replace your throwout bearing, change your tranny fluid, oil, and clutch accessories which was mentioned before. Might as well put an aluminum driveshaft in too while your down there. Sorry i get carried away, now I see why it takes me so long to do a project, I am always thinking about what else I could do while I'm at it. Good luck regardless!!
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