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  #21  
Old October 1st, 2005, 10:27 AM
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15/16" for the socket on the crank pulley. There is a spacer between the pulley and the bolt but unless the bolt is loose there should be no way for the spacer to move around.

The Noise can travel over belts, I was talking about the crank pulley, there are bolts that hold it to the other pullies.
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first then ask questions later! The loose nut behind the wheel
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  #22  
Old October 1st, 2005, 10:39 AM
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I give it a try. Thanks Mike
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  #23  
Old October 1st, 2005, 12:56 PM
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FWIW I have seen crank pulley bolts work loose and break off...definitely worth checking...if that happens the belts will prevent the crank pulley coming completely off but the pulley will destroy the key and usually damage the end of the crankshaft. If you find the bolt broken off, be careful when extracting it as blowby gasses in the crankcase are combustible and may ignite causing damage to the valley gasket, loss of eyebrows, and impressive flames coming through the grill.
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  #24  
Old October 1st, 2005, 01:14 PM
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THANKS,
Does anyone have an ilistration of the pulley. The center bolt I know is there. I am going to check the other three today when I get home. Any idea of the other bolt sizes?
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  #25  
Old October 1st, 2005, 02:33 PM
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I have a differnt pulley on mine so I don't know the exact size but I think it might be 10 mm or around there.
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first then ask questions later! The loose nut behind the wheel
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  #26  
Old October 1st, 2005, 11:40 PM
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Humm, I am perhaps thinking something has worked its way behind the pully. Crankshaft bearings if making noise almost certainly would mean a new crank as well, and on a 11 year old 3.9 it means new engine time. However, at this point I do not think that is the most likely cause.
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  #27  
Old October 3rd, 2005, 07:35 AM
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Ok here it is. I check all the bolts on the crank and they are fine. I narrowed the noise down to the inner most pulley in the crank. This runs the power sterring pump. I cut the belt and the noise is now gone. I am a little suprised because the noise wasn't coming from the PS pump ( I Used a mechs. Steto) and heard nothing. So I guess this means it could be the power sterring pulley? The thing I dont get is both the Power Steering pulley and the crank pulley are still turning due to other belts and the noise is gone. I was definatly not a noise a belt makes, more like metal chopping around like a bearing. Any advice would be greatly appreciated. At least it isn't serious.....
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  #28  
Old October 3rd, 2005, 09:46 AM
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Hmm, was the belt a little old? I have had belts kinda get a tuff spot or hold their shape after sitting for a while, try a new belt if the noise is still gone I bet it was just time to change the belt.
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  #29  
Old October 3rd, 2005, 09:53 AM
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The belt was kinda newer. The noise was definatley a metal chopping type noise. Could a belt make that noise?
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  #30  
Old October 3rd, 2005, 09:56 AM
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Not sure, was the belt very tight? Maybe if it was too tight it was pulling too hard on the PS pump?
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  #31  
Old October 3rd, 2005, 09:57 AM
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It did seem a little tight. I will check it out. Thanks alot for your help Mike.
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  #32  
Old October 3rd, 2005, 10:34 AM
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You might also inspect both pulleys very careful for cracks...I have seen water pump pulleys crack from the mount holes outward and make strange noises.
Rob
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