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Re: timing belt? Posted by Larry West [Email]  (#1140)  [Profile/Gallery]
(more from Larry West) on Mon, 13 Jul 2009 11:48:04
In Reply to: Re: timing belt?, Chip60, Mon, 13 Jul 2009 10:35:01 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Unfortunately, if a broken timing belt is the cause, you are in for a lot more than just a new belt. The V6 is an "interference" engine (as is the 4-cylinder), meaning that the valves can contact the pistons and get bent or broken if the timing belt breaks. It is a common method of building engines, particularly 4 valve per cylinder engines.
What this means is replacement of the cylinder heads is all but required. I do not know if anyone rebuilds these heads. Last I heard, they are not rebuildable, or parts necessary to a rebuild are not available.
Any 900, 9000 or 9-5 with the V-6 and an uncertain service history should have their timing belts, tensioner, pulleys and water pump changed immediately upon purchase to avoid any potential issues. Last year, I bought a 2002 Arc, and had the TB and water pump replaced first thing. I was very nervous driving the car just the 45 or so miles from the dealer to my house to my specialist shop. And that car had only 84k on it!
If the maintenance is kept after, these engines are one of the best that Saab has engineered. But neglect them, and it'll be expensive...
My sympathies to you...
Larry West
1999 9-5
2002 9-5 Arc (r.i.p.)
_______________________________________ Current: 2002 9-5 Aero Kombi Cosmic Blue 2000 9-5 SE sedan, Imola Red 1990 900S Rose Quartz, Auto Past: 1999 9-5 LPT Combi 1999 9-5 LPT sedan 2002 9-5 Arc 1990 900 5-speed 1986 900 turbo Convertible 1991 9000 turbo 1980 99 GLi 1986 900 turbo 1986 900 S 1991 900 turbo 1984 900 turbo 1976 99 GL
, Mon, 13 Jul 2009 08:31:22, Mon, 13 Jul 2009 11:48:04 <-- Viewing This Message
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