Date: Tue, 27 Jan 2004 06:48:56 +0000 From: Rogier Boeken <rogiernopsamen.co.uk> Subject: Re: Saab 900 (96) maintenance
On 26/1/04 9:33 pm, in article SI-dnRO86e8DGojdRVn-jQnopsamphia.com, "Fred W." <Fred.Willsnopsampam myrealbox.com> wrote: > > "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 > > Thanks everyone I had the same thoughts about the camshaft as you seem to have but it is good to have this confirmed. It is a inline 4 so it has a timing chain so I won't worry about replacing this. Thanks for all the help. rogier
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