Date: Mon, 26 Jan 2004 16:33:17 -0500 From: "Fred W." <Fred.Willsnopsampam myrealbox.com> Subject: Re: Saab 900 (96) maintenance
"Rogier Boeken" <rogiernopsamen.co.uk> wrote in message news:BC3B342E.5364%rogiernopsamen.co.uk... > A friend of mine told me to make sure to find out when the camshaft had last > been replaced. > > Could someone shine a light on this, when should you replace the camshaft > (after how many miles) and when you have your car serviced would the saab > garage pick up on this themselves or would they notify you that this should > really be replaced. Your friend probably asked you to find when the camshaft drive belt (aka timing belt) has last been replaced. The camshaft(s) do not normally require replacement *ever*. His advice would only apply if this is a V6 engine, which has a timing belt, not the inline 4 which has a timing chain. Timing belts are best replaced per the recommended interval (I forget, maybe 30k miles). If you do not have a record of when it was last changed, do it now. When a belt breaks it is an expensive head replacement for the bent valves that will occur. Chains, OTOH, do not have replacement intervals. They usually last greater than 100k miles if the oil has been changed regularly and the engine has not been overheated. They usually get a bit noisey and can be identified by listening to the engine at idle. -Fred W
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