924Board.org

emoore924 · Joined: 13 Apr 2004 Posts: 2822

Can you get the exhaust manifold off a 80 turbo without removing half the engine? I'm trying to diag an exhaust leak and I think the manifold is cracked (interesting glow at night, there is...).

I want to remove the current manny and replace it with another I have but I don't want to get in over my head if I don't have to. If it is too difficult, I'd much rather pay my mechanic to get in over his head

)

I have lotsa tools. And beer too. And a heater. And drop lights. And several hammers. So I should be covered for enough basic wrenching to tackle this project...

What say ye? Can I get the manny off easily and disco the turbo and WG pipe without killing my knuckles? ...or not

John Brown · Joined: 07 Nov 2002 Posts: 903 Location: Leesburg VA

Ed, I've yet to figure how to do it without pulling the turbo. And to pull the turbo you have to.... So it's not hard, but lotsa stuff to move around.

Let me guess: crack underneath just behind and between number 1 and 2 cylinders?
_________________
John
80 931 - #931 44Cup
99 Escalade - tows track cars
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emoore924 · Joined: 13 Apr 2004 Posts: 2822

Hey John,

Thanks for the info. I guess I was hoping for an easy answer, but it never seems to work out that way.

I haven't really been able to get a look at the underside of the manny but if I had to bet on it, I'd agree, a crack between #1 and #2. It spits some when things are cold but mostly goes away when things warm up. But even when warmed up, its still there and I think I might as well replace it before something more serious happens.

I started it up at night (yes, in the dark

) to see if I could see where the leak was. There was some blue reflected around the turbo, the manny glowed mightily at #2 and I could hear the leak -- nothing I could see directly though, so I'd guess something is wrong on the underside. (I have a nagging thought related to why the #2 runner was glowing more than the rest, but I guess that's a question for another day...)

I have a couple good used manifolds but I just picked up a brand new manifold (yes new) from eBay, so when that arrives I'll think through whether I want to DIY or send off to my mechanic to deal with.

Aaahhh, what would I do without a winter project (or two or three).

Paul · Posted: Fri Dec 21, 2007 9:18 am Post subject:

I'd pull the head.
_________________
White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
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Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy.

924guy · Posted: Sat Dec 22, 2007 1:41 am Post subject:

been there, done that...turbo must come out first, and even then its a pita to get at some of the nuts. its also a gamble, if a stud comes loose in the wrong place while trying to get the manifold nut off... oye.. pick your poison, atempt in car mani replacement , pull head, or pull engine.. id go with number three..takes longer, but you can give it a once over while its out, and not have to be a contortionist under the car..
_________________
Eric
78 924
82 931 SE "smokey"
99' VehiCross
Y2K Honda Insight
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