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Exhaust Manifold Question!!

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Old Nov 16, 2006 | 04:52 AM
  #1  
AUSSIROC's Avatar
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From: Charmhaven, Australia
Car: 1999 subaru forester GT (urgh)
Engine: ej20 turbo
Transmission: 5speed
Axle/Gears: 4.11:1 awd
Exhaust Manifold Question!!

Guys,

I have a leak from the exhaust manifold (sounds like a volkswagon at the moment), and are about to replace the gasket on the drivers side (RHD down here in Australia).
I have half the bolts out except for the rear bolt and one of the middle studs.

Should i crack the seal on the downpipe flange in order to slip the gasket on, or should it flex enough (i do have the steering shaft on this side tho) to fit ok?



Thanks heaps, i know it's not the most exciting thread ever, lol.

Chris
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Old Nov 22, 2006 | 10:13 PM
  #2  
96Iroc's Avatar
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From: Chatsworth Ca.
Car: 1986 Iroc
Engine: 355, aluminum heads
Transmission: Built 700r4
Axle/Gears: 3.42s
There is no gasket.
Tighten the bolts or get headers.
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Old Nov 22, 2006 | 10:40 PM
  #3  
Sonix's Avatar
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
there's no gasket on factory manifolds?? are you sure about that?
I honestly can't remember when I did mine, but, I was sure there was....
Removing the steering shaft is easy, and makes life a lot easier for the manifold/header work.
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Old Nov 22, 2006 | 11:03 PM
  #4  
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From: Northern California, Redding
Car: Red 1987 IROC Convertible
Engine: 305 LB9 TPI
Transmission: T5 5-Speed
Axle/Gears: 9-Bolt 3.45
Nope. No gaskets on factory manifolds.
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Old Nov 23, 2006 | 03:49 AM
  #5  
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From: tasmania australia
Car: 1985 z28 camaro
Engine: 305 lg4,edelbrock,3"air cleaner.k&n
Transmission: turbo 700r4 w/b&m megashifter
Axle/Gears: Stock.
Originally Posted by AUSSIROC
Guys,

I have a leak from the exhaust manifold (sounds like a volkswagon at the moment), and are about to replace the gasket on the drivers side (RHD down here in Australia).
I have half the bolts out except for the rear bolt and one of the middle studs.

Should i crack the seal on the downpipe flange in order to slip the gasket on, or should it flex enough (i do have the steering shaft on this side tho) to fit ok?



Thanks heaps, i know it's not the most exciting thread ever, lol.

Chris
mnorton is right there are no gaskets on the factory manifolds,just metal to metal.There is a universal joint on the steering shaft that you can disconnect
and the lower part of the shaft will telescope down.That might make it easier to get at your exhaust manifold bolts.

Regards,
Alicat.
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Old Nov 23, 2006 | 05:57 AM
  #6  
AUSSIROC's Avatar
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From: Charmhaven, Australia
Car: 1999 subaru forester GT (urgh)
Engine: ej20 turbo
Transmission: 5speed
Axle/Gears: 4.11:1 awd
Thanks Guys,

False alarm after all that. I was getting under there to do it, and i noticed a brass plug had fallen out from the manifold (where the EGR has been disconnected by the previous owner) and wedged itself between the frame and a length of hard line.

Number 1 rule: "Check the simple things first!"
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