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Old 01-15-2018, 12:03 AM   #20
diveplane
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Join Date: Nov 2016
Location: Tulsa
Posts: 418
Re: How much tension? Drive belt pulley

Quote:
Originally Posted by J1MMY View Post
Hello all

Belt was slipping on my '94 Sierra (4.3, ex USAF beater, no a/c) so ordered in new tensioner and belt. Fitted up and there is really not much tension there at all. Offered the new and old belts up and there is no discernible difference. I have spotted that there is a small aftermarket idler pulley. It is 3" diameter. Is this correct?
pulley unit is self tension , theres maximum and minimum marks on the pulley tensioner unit.
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