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1992 5.9 cummins fan belt install is a B&T%H!!!! Can you help?

September 06, 2014, 09:32:42 am

For the life of me I hope someone has a tip. I replaced my belt tensioner and cannot get the new belt on. I used a 1/2 breaker bar and relieved tension (all the way) on the tensioner and the belt will not go over the alternator pulley...close but no cigar. any tips anyone? the belt is K080610 gates, should I get a slightly longer belt? It is the same numbers that were on it before.
 thx;
 greasy dirty diesel Pat

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Re: 1992 5.9 cummins fan belt install is a B&T%H!!!! Can you help?

Reply #1 – September 06, 2014, 09:34:39 am

I usually find that I can install a belt on the smaller pulleys rather than the largest last.

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Re: 1992 5.9 cummins fan belt install is a B&T%H!!!! Can you help?

Reply #2 – September 06, 2014, 01:53:45 pm

I ordered a new belt 1/2" longer, I hope that will cure the problem. I don't want to put too much tension on the water pump anyways. thanks

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Re: 1992 5.9 cummins fan belt install is a B&T%H!!!! Can you help?

Reply #3 – September 06, 2014, 02:20:29 pm

Is the pully on the new tensioner the same diameter as the old one?

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Re: 1992 5.9 cummins fan belt install is a B&T%H!!!! Can you help?

Reply #4 – September 07, 2014, 01:45:30 am

Just buy a little longer belt. Maybe new tensioner has a larger diameter pulley or doesn't swing as far.

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Re: 1992 5.9 cummins fan belt install is a B&T%H!!!! Can you help?

Reply #5 – September 08, 2014, 05:33:47 pm

Insure you have the correct path the belt follows then try a 1/2" breaker bar.  It should fit between the block and the idler.  Please don't use anything but the CORRECT belt.  If you continue to have an issue, there is a special (long) tool that is designed especially for this particular PITA job..

FWIW, I've replaced mine about every 125K. To check an idler,  slack and spin it.
If it's not spinning freely.. it's due to be replaced.  pc

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