Quote:
Originally Posted by dahicori
So i'have red some threads here that consider the change of the IP pump belt as totally necessery for a car that has not been used for years. Can you confirm that?
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Yes, confirmed. The TB weakens from use, and age. The materials deteriorate over time, and worse even, when the TB has been setting in the same position for 10 years, it is stressed bent around the small pulley and the fibers will take a "set" and not want to bend back the other way when finally run again. Like the old man who has been sitting in the chair and tries to stand up quickly.
These engines are interference fit, means that if the TB breaks (or is timed incorrectly) the pistons smash into the valves. Will bend the valves, usually damage the pistons, often snaps the camshaft, and can bend the rods.