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4.6 belt tensioner pulley

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Old 10-12-2009, 08:12 PM   #1
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Default 4.6 belt tensioner pulley

the old one went bad and was squealing like crazy so i went and got a pulley and bearning set up and bolted it onto the stock pulley. when i started the motor it was ok for ~ 5 seconds then it made som different noise hard to explain. it got really hot and sprayed some wd40 on it and it smoked like crazy. any ideas?
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Old 10-13-2009, 11:19 AM   #2
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I put mine on backwards once, and it did what describe. In the correct position, it looks backwards to me still. Check to see if it is grinding against the timing chain cover.
98 F150 - 4.6 - auto
Paxton Novi 2000
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Old 10-15-2009, 01:59 AM   #3
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Never put WD40 on a drive belt. It will make things worse, not better.

My truck-2007 Red F150 5.4 XLT SCAB 4x4
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