Date: Wed, 05 Feb 2003 09:45:30 +0000
From: Grunff <>
Subject: Re: Stuck exhaust valve

Greg Youngen wrote: > Just got news my '86 Saab (8v, 128k mi) has a stuck exhaust valve. It's > been running poorly lately and all the usual tune up tricks weren't > working. I took it into the shop today and they pulled the valve cover > after getting a reading of 15 psi in the no 3 cylinder (the others were > reading 125-150 psi). They estimated a valve job at around $800. Higher > than normal because the valve setup on the ohc 8v is a "bitch" to work > on. The valve setup on an 8v 900 is not in any way a bitch - it's pretty straightforward to work on. Having said that, you still have to take the head off to do it, which does take a few hours. I don't quite understand how the valve is stuck - if it was stuck closed, the cam wouldn't be able to turn (or in other words, the turning cam would prevent it from sticking). If it was stuck open, it would collide with the piston. More likely you have a burnt valve (I've seen several of those on 900 engines). > I've had this car for several years and really like it. However, the cost > of repair is more than I want to put into it. Any suggestions? You feeling brave? You can pull the head yourself, and replace the valve. -- Grunff

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