The inner pulley on the crank is loose and wobbles and makes a noise until the engine warms up and suddenly the pulley runs straight, and the noise stops what? how? why?
How is the inner pulley attached to the crankshaft?
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It would be my best guess that the retaining bolt could be loose. If it is then you will want to make sure the crankshaft is not damaged, If the crank is ok, then tighten the bolt and see if it still wables. If so your pulley has wabbled long enough to eat the inside out. You will have to get another one.
I hope this takes care of your problem.
It sounds as though a belt pulley is loose on its shaft (there are actually 2-3 of them depending on what engine it is). You could try tightening the bolt head at the centre of the pulley, and checking for any other bracket fixing bolts and nuts in the vicinity for looseness.
If you mean the crankshaft pulley at the bottom of one end of the engine, right down low, you have to take off the inner wheel well liner to get at this, and it is normally done up very very tight. That one should be attended to by a mechanic or someone with the right tools.
Hello: Remove the serpentine belt, see if the waterpump pulley wobbles/makes noise when you spin it. If thats not it then start the engine, belt still off see if noise is there also while engine is running see if vthe crankshaft pulley wobbles. Also check the A/C compressor pulley (engine off, belt off) spin it by hand and check for noise and wobble. If all the previous is ok then it could be the balance shaft front bearing and or the timing chain.
HI. This can be a potentially damaging find. The actual pulley may be separating from the crank shaft, itself.
Your crank pulley is bolted directly onto the harmonic balancer. The bolt that holds the balancer to the engine block may be loose, or the balancer, itself, may be separating. This condition could also destroy your crankshaft, if not repaired, asap. Hopefully your crank shaft is in good condition, and the culprit will turn out to be just a simple loose pulley bolt. The repair cost could catapult to a higher rate if it turns out to be a crank shaft fault.
Have this potentially damaging condition inspected, asap.
the bottom pulley is the crank pulley. It is attached to the crank shaft. It has two parts, an inner and an outer that are joined together with a rubber isolator. Over time the rubber breaks down and the inner part part of the puller will start to rotate independently from the outer part of the pulley creating a unigue clacking noise.
To solve this you'll need a standard crank pulley puller set. You'll remove the crank bolt and then use the pulley puller to pull the crank pulley off of the crank shaft. The install the new pulley making sure to torque the crank pulley bolt to the proper spec.
Maybe, you would have to remove the belts and then take a look at all the pulleys, it could be a pulley or a bad waterpump, or even something in the timing belt, like a timing belt pulley or tensioner pulley or waterpump,the best way to find out is to remove all the belts and then start the motor and listen for the noise, if the noise is still there with the belts removed then its something in the timing belt, but is the noise goes away then its something with the belts a pulley or a alternator, you would have to inspect all pulley and the acc, hope this helps,