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1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

Loose belt, 302

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Old 09-24-2016, 10:13 AM
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Loose belt, 302
It seems like every few weeks I have to tighten the belt on my F100. Does anyone have any good suggestions on how to get it to hold tension?
 
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  #2  
Old 09-24-2016, 11:03 AM
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I use Gates green stripe or Goodyear, not the cheap ones in the big box auto parts stores.
 
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Old 09-24-2016, 11:41 AM
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Is the belt stretching,the fasteners loosening, or bracketry slipping?

Serrated bolts and lock washers sometimes work wonders.. in addition to quality belts as stated above.
 
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Old 09-24-2016, 02:37 PM
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Are you getting a 1/2" of deflection on the belt when tightening? Meaning with a straightedge across the pulleys, can you only press down a 1/2" and no more. You don't want to go tighter than a 1/2".
 
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Old 09-24-2016, 02:42 PM
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What has been said and what condition are your pulleys? How is your belt alignment? Use a good belt.
 
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Old 09-24-2016, 03:10 PM
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The bolts that hold things together are slipping. With quality belts as you stated, the belts are not the problem.
Pluck bolts, put in lockwashers, tighten to the proper deflection.
 
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Old 09-25-2016, 04:17 PM
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Thanks for the help guys. The deflection is good I think the old bolts are just slipping.
 
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Old 09-25-2016, 06:31 PM
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Also make sure your buying the correct width of belts when replacing them.

Buy good name brand belts & hoses will last for many yrs, not just a few yrs.

Orich
 
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