2001 10k generator belt

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2001 10k generator belt

September 07, 2020, 12:30:03 am

My generator belt is a Gates XL 7305. At least 12 years old probably 20. Barely slips by hand, no operation issues. Ordered a Napa xl7305, too loose slips, ordered Gates 7305 XL exactly what was removed, too long, yes it's longer than the old belt. I think it should have a 7300 belt which is 6/10 inch shorter. What is the preferred belt to use. Brand and size? Shouldn't be this difficult to figure out, PT part number is 03BF7305. There is no belt idler, how tight should the belt be? I will take old belt and measure.
Scott

Re: 2001 10k generator belt

Reply #1 – September 07, 2020, 01:04:21 am

You should be able to just turn the belt 90 degrees half way between pulleys with your fingers.

Pierce

Re: 2001 10k generator belt

Reply #2 – September 07, 2020, 01:36:23 am

Old belt you can just barely cause it to slip by hand, it's old too. New belt can be rolled on pulley by hand. Loose. X2 Same numbers but bigger? Putting a third same part number belt and expecting different results is a technical sign of insanity.
Scott
Yes I've been in the heat working since July on this fine piece of equipment, It is taking its toll, there has to be a correct answer.

Re: 2001 10k generator belt

Reply #3 – September 07, 2020, 05:08:56 am

Take the old belt to a store that has the belt sizing apparatus,get the same size belt regardless of part number,they may let you take
3 different size belts and see which one fits the best,us telling you a part number is not helping.

Re: 2001 10k generator belt

Reply #4 – September 07, 2020, 08:26:15 am

I have been wondering myself about this very subject? I was considering replacing my belt for it is also a tad too loose but it appears not to have any adjustment capabilities? Is it my understanding removal of old belt ( could be cut off) and replacement belt are stretched and rolled on or off the pulleys? It appears there is no way to adjust tension?

Is this correct?

Re: 2001 10k generator belt

Reply #5 – September 07, 2020, 09:05:47 am

Not sure on yours but the 8K models adjust like a car belt.

Re: 2001 10k generator belt

Reply #6 – September 07, 2020, 09:07:19 am

If you slide the generator out, then look under the bottom of the of the coach you will see a cover under the generator bay. It will have 4 bolts 1/2 or 9/16 wrench IIRC. Remove that you can get to the back of the generator. There is an adjustment idler for the belt and installation is much easier.

Re: 2001 10k generator belt

Reply #7 – September 07, 2020, 09:09:47 am

Ok, appreciate that. Thank u!

Re: 2001 10k generator belt

Reply #8 – September 07, 2020, 11:54:34 am

So on mine there is no adjustment idler or alternator. Belt runs direct from crank pulley to water pump pulley. Both pulleys are fixed in location and size. No adjustment. No lower panel to open. Belt has to fit out of the package.
Scott

Re: 2001 10k generator belt

Reply #9 – September 07, 2020, 11:56:29 am

Generator info

Re: 2001 10k generator belt

Reply #10 – September 07, 2020, 12:12:06 pm

The engine is a Kubota. Was the generator made by Power Tech?

Re: 2001 10k generator belt

Reply #11 – September 07, 2020, 01:15:16 pm

Quote from: dsd – September 07, 2020, 11:54:34 am

So on mine there is no adjustment idler or alternator. Belt runs direct from crank pulley to water pump pulley. Both pulleys are fixed in location and size. No adjustment. No lower panel to open. Belt has to fit out of the package.
Scott

The engine setup must have planned to have an alternator and rather than design an idler pulley found a belt you could pry on or remove water pump pulley to put the belt on. Whoever approved it should be put in the corner.

Re: 2001 10k generator belt

Reply #12 – September 07, 2020, 02:05:45 pm

Rather than prying the belt over the edge of a pulley, I've taken the water pump pulley off, put the belt on, taken a longer bolt and threaded it into to one of the water pump pulley threaded holes, turned the pulley until the other holes lined up and then pulled the pulley in flush, then removed the long bolt, replacing it with the bolt that matches the other three.

Pierce

Re: 2001 10k generator belt

Reply #13 – September 07, 2020, 03:33:55 pm

It would seem to me that if you loosen the bolts for the water pump pulley, it would wobble down enough for the belt to be slid into the groove. Then it would be tight when the bolts are tightened. I've done this on other applications.

Glen

Re: 2001 10k generator belt

Reply #14 – September 07, 2020, 03:35:03 pm

Pierce yes that is how it should be done except new belts are so loose they slip over by hand
The old belt is visually smaller than the new belts x2

Re: 2001 10k generator belt

Reply #15 – September 07, 2020, 04:40:14 pm

Scott, if you don't own one of these, go to an old school parts house and get the size off the belt that came off and buy one smaller.
On pulleys that close together a 1/0th of an inch would make a difference. When the belts are manufactured there is a variance in sizes on the run. I had to get matched belts for my crane as 3 of the same part number would leave 2 of them loose when I tightened them up.

Re: 2001 10k generator belt

Reply #16 – September 07, 2020, 05:35:58 pm

Quote from: craneman – September 07, 2020, 01:12:20 pm

Kubota engine.

Yes, I understand that. Auto-correct changed it. I was wondering if Power Tech built the generator. They offer good support and should be able to provide the right belt.

Re: 2001 10k generator belt

Reply #17 – September 07, 2020, 05:51:54 pm

Quote from: dsd – September 07, 2020, 03:35:03 pm

Pierce yes that is how it should be done except new belts are so loose they slip over by hand
The old belt is visually smaller than the new belts x2

Can you read the number on the back of the old belt? Or, you could take the old belt to the part counter and compare.

For U300 Detroit owners, the twin alternator belts are the same size as the Kubota 10K generator belt and do have an adjustment. You may have a choice of no cog, bottom cog or top cog belts. Don't know of an advantage one over the other. I do know generic O'Reilly belts are $6, Dayco $16, Gates $20 at the same store.

Pierce

Re: 2001 10k generator belt

Reply #18 – September 07, 2020, 06:34:43 pm

Sorry for the wrong info mine is an Isuzu.

Re: 2001 10k generator belt

Reply #19 – September 07, 2020, 06:57:21 pm

Here is what I have on mine but Napa couldn't match it, no longer made and they could not cross reference??I Ordered a gates xl7312 hoping it will fit but haven't tried it yet.

Re: 2001 10k generator belt

Reply #20 – September 07, 2020, 07:06:18 pm

Hope you don't have the same luck as Scott, matching his original number the belt is too long.

Re: 2001 10k generator belt

Reply #21 – September 07, 2020, 07:48:10 pm

So Auto zone 15305 11AV0775 is the same length as my origanal belt Gates XL 7305. It is still looser than I would mechanically adjust if I could, but should work. Hecho En India. Not my first choice but I'll hold on to my 20 year old belt and work this problem another day.

Re: 2001 10k generator belt

Reply #22 – September 07, 2020, 08:17:50 pm

It doesn't take a lot of torque to spin the water pump so slippage might not be an issue.

Re: 2001 10k generator belt

Reply #23 – September 07, 2020, 08:33:46 pm

Quote from: dsd – September 07, 2020, 07:48:10 pm

So Auto zone 15305 11AV0775 is the same length as my origanal belt Gates XL 7305. It is still looser than I would mechanically adjust if I could, but should work. Hecho En India. Not my first choice but I'll hold on to my 20 year old belt and work this problem another day.

Yes, Chuck has it correct in that it does not take too much to spin the pump. Is it possible you have a two piece crank pulley with shims between the two parts? Like a VW Bug.

Pierce

Re: 2001 10k generator belt

Reply #24 – September 07, 2020, 08:47:15 pm

Looking at reply #8 it is a one piece cast iron pulley.

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