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Checking beats replacing any day Posted by Ari [Email] ![]() ![]() In Reply to: Crankshaft/Main Pulley (Harmonic Balanceer) Question, BWD, Wed, 4 Aug 2004 15:32:58 Members do not see ads below this line. - Help Keep This Site Online - Signup |
The joy of the pulleys in question is that they don't fail suddenly, and they can be inspected. Before I would run out and replace parts, I'd check them out.
For the idler pulleys, slip the belt off (many posts on installing/replacing belt, see mine above). Now feel the idler pulleys (both). They should spin smoothly. They don't have to spin freely, namely, one push doesn't have to have it spin forever. There should be minimal play in the bearings, as that is what fails.
For the main pulley (harmonic balancer), draw a chalk mark across the face, start the engine, then shut it down. If the chalk line is still straight across, then there is no slippage between the two pieces. Shine a flashlight down there periodically to see if the line is still straight - if so, the pulley is OK. If you've got an inspection mirror, peek at the thin rubber layer between the pieces - it should be smooth.
It's nice to have parts that you can periodically inspect for health. Now, if a pulley is acting up, THEN replace it.
posted by 192.249....
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