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Join Date: Feb 2008
Location: United Kingdom
Re: warning ! change cambelt after 3 years !!
I forgot to mention though,
As the engine stops, on occasions the cams will roll back as the valve springs equal out thier force, this tightens up one side of the belt and loosens the other as often the crank wont spin, it's quite normal and the reason that the tensioner pointer is set to the dot in the middle of it's movement range when timing the engine, if it wasn't then when this phenominominominon occured then the belt would skip teeth.
These belts don't really stretch due to thier construction, but the new metal tensioners do eat the rubber teeth a lot worse than the old teflon pulleys, but they would shatter, so it's a paragon really, shattering or hungry tensioners, tbh the teflon ones were better, but you just can't get them any more.