2001 10k generator belt

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Re: 2001 10k generator belt

Reply #25 – September 07, 2020, 09:51:45 pm

Not sure if this helps, but I have the same year, and mine takes the NAPA 7300 belt. Based on your 7305, would that be a little longer belt and maybe causing the issue ?

Re: 2001 10k generator belt

Reply #26 – September 07, 2020, 10:03:24 pm

Quote from: Pierce & Gaylie Stewart – September 07, 2020, 08:33:46 pm

Is it possible you have a two piece pulley with shims between the two parts? Like a VW Bug.

Pierce

I actually thought about striping the outer half of the pulley off in the lathe and cutting a aluminum cup with half the pulley on it and separate with shims like a vw aircooled generator. Lol. Less is always better. Too easy to add a idler pulley on the back side if I couldn't get a belt to work. May consider when I have the generator out of the coach in the future to sound deaden and replace all the cooling hoses. It's stripped clean currently. Zero decomposing foam inside. Always liked the adjustable pulley idea. I can twist the belt 180 deg with fingers, but it currently slips very little. Have to keep an eye on it.
Scott

Re: 2001 10k generator belt

Reply #27 – September 07, 2020, 10:07:03 pm

Mark the 7300 is 30.0 inches. The 7305 is 30.6 inches. It would be really tight with 7300. Still I'll pick up a Napa 7300 and give it a try
Scott

Re: 2001 10k generator belt

Reply #28 – September 08, 2020, 11:32:42 am

I just checked my Powertech manual. It also calls for the NAPA 7300 as the correct belt. Maybe that .6 inch shorter belt will solve your issue ?

Re: 2001 10k generator belt

Reply #29 – September 08, 2020, 03:59:49 pm

I replaced my generator water pump belt a couple of years ago. Power Tech web site calls out a 7305, I replaced mine with what was on there a 7304. I loosened the water pump pulley to give the necessary slack for install. Old belt was definitely slipping, new belt no slip.

Just another data point.

Bob

Re: 2001 10k generator belt

Reply #30 – September 08, 2020, 04:20:34 pm

Not sure about today but in the past, belts like Dayco, Gates, Continental didn't stretch like the cheap ones. When they stretch, they get loose and slip. Slipping makes them hot and then they stretch out further. Old Firestone belts on VW Bugs stretched like rubber bands.

Pierce

Re: 2001 10k generator belt

Reply #31 – September 09, 2020, 12:13:02 am

Quote from: Pierce & Gaylie Stewart – September 08, 2020, 04:20:34 pm

Not sure about today but in the past, belts like Dayco, Gates, Continental didn't stretch like the cheap ones. When they stretch, they get loose and slip. Slipping makes them hot and then they stretch out further. Old Firestone belts on VW Bugs stretched like rubber bands.

Pierce

Couldn't agree more. My 19 year old belt was barely slipping. Worked great. No issues. Too old for me. Gates XL 7305 purchased a Napa 7305. Too long. Major slipping, unacceptable. Ordered a Gates XL 7305. (Same belt as original) Too long Major slipping unacceptable. Auto zone 15305 11AV0775 is the same length as my origanal belt Gates XL 7305 Which worked fine with slight slipping. In my experience I agree 100% with Pierce. Point being don't buy a belt that is the correct number and expect it to actually work like it SHOULD! Changing quality control and standards? There is no adjustment. It must fit. Crainman is correct in saying someone should be sent to the corner. This particular application belt must be physically verified before being added as a spare part. If I was boondocking and had to use my spare belt and it was unusably too long I'd have fit. PT shows mine as a 7305 and a 7300 in today's standards is probably correct (unverified by me) i got a 100hrs to get a new belt and a verified spare. This is all good, just a bid pathetic quality control. Here is my personal zany belt issues
Scott

Re: 2001 10k generator belt

Reply #32 – September 09, 2020, 09:33:13 am

Duel alternator chev 6.0 or 8.1 ?

Re: 2001 10k generator belt

Reply #33 – September 09, 2020, 10:26:36 am

Currently 5.3 LS conversion in Bronco. Hope to end up with LS3 when I'm done with mock up. No time too play with it. U320 has consumed all my free time. Have to get it ready for October trip to North Carolina

Re: 2001 10k generator belt

Reply #34 – September 09, 2020, 10:35:07 pm

Quote from: MarkC – September 07, 2020, 09:51:45 pm

Not sure if this helps, but I have the same year, and mine takes the NAPA 7300 belt. Based on your 7305, would that be a little longer belt and maybe causing the issue ?

Yes I couldn't help myself. I swapped out the 7305 for a 7300. No possible way to install. Way too short. Was unaware they made a 7304 and will look for it now. The autozone belt after 10 minutes of running is looser than the 20 year old belt. I knew better.
Scott

Re: 2001 10k generator belt

Reply #35 – September 09, 2020, 10:42:59 pm

If it works you have some cars that take that belt. Might make it easier to find. I like where it says it tightens as it gets hot wonder how?

Gates 7304 Accessory Drive/Serpentine Belt | CarPartsDiscount.com

Re: 2001 10k generator belt

Reply #36 – September 09, 2020, 11:16:50 pm

Quote from: dsd – September 07, 2020, 01:36:23 am

Putting a third same part number belt and expecting different results is a technical sign of insanity.
Scott

Top Width: 0.375 in. On the 7304 belt
Top Width: 0.41in. On the 7305 belt
I'll pick one up and try it tomorrow. Who knows Old belt is looking more serviceable every day
Scott

Re: 2001 10k generator belt

Reply #37 – September 09, 2020, 11:37:29 pm

The .375 width will fall in the pulley more as you know and may give you the slack you need.

Re: 2001 10k generator belt

Reply #38 – September 09, 2020, 11:53:23 pm

Poly-alternator Syndrome:

Re: 2001 10k generator belt

Reply #39 – September 10, 2020, 11:11:17 pm

Quote from: dsd – September 09, 2020, 11:16:50 pm

Top Width: 0.375 in. On the 7304 belt
Top Width: 0.41in. On the 7305 belt
I'll pick one up and try it tomorrow. Who knows Old belt is looking more serviceable every day
Scott

7304 is so narrow that it allows 2 inches freeplay when installed. Will not work.
I will contact PT and order one of the belts. Next year there will be a adjustable pulley installed on the water pump. I'll make it when the sound deadening is reinstalled.
Scott

Re: 2001 10k generator belt

Reply #40 – September 11, 2020, 10:50:41 am

When I called PT on 9/8/20 they told me a 7305?

Re: 2001 10k generator belt

Reply #41 – September 11, 2020, 11:13:38 am

My original was a Gates XL 7305 (best fitting) replaced with Napa 7305 too loose, ordered Gates XL 7305 too loose. I'm at a loss. Generator hours 930hrs. I'm not going to worry about the water pump slipping for now. When I pull generator out to replace sound deadening I'll either add a idler or make a adjustable pump pulley. Thought I was competent to proactively change a belt. Should probably rethink that.
Scott

Re: 2001 10k generator belt

Reply #42 – September 11, 2020, 11:46:19 am

The belt manufacturing is not very precision. On my crane that requires 3 belts on the same pulleys I would go to the parts store with my belt measuring tool and try to get 3 belts close enough to not have slack in 2 of them. Didn't ever work I would put on the closest 3 and keep retightening daily until the tight ones stretched and all were equal tension. When I wasn't in a rush I could special order a matched set of 3 belts for quite a bit more money. There are batch numbers on the belts and when I ordered a matched set the numbers were sequential. Eventually you might get a xl 7305 that is tight enough. Hard to believe that the crank pulley and water pump pulley could be that far off on different generators.

Re: 2001 10k generator belt

Reply #43 – September 11, 2020, 04:48:02 pm

Cat 3208 needed matched belts from gates to last

Re: 2001 10k generator belt

Reply #44 – September 15, 2022, 08:35:54 am

Since a couple of years have passed I'm wondering if Scott ever solved the water pump belt issue on his generator?

Re: 2001 10k generator belt

Reply #45 – September 15, 2022, 09:23:05 am

As i recall the Napa belt was tighter fitting. A permanent adjuster is still going to happen eventually, but hasnt happened yet. Generator is running as we speak. Lol too many other projects but its on the fix list along with soundproofing
Scott

Re: 2001 10k generator belt

Reply #46 – September 15, 2022, 10:04:42 am

On my generator the belt has an adjustment. Did the enclosed sets do away with it?

Re: 2001 10k generator belt

Reply #47 – September 15, 2022, 10:18:11 am

Quote from: craneman – September 15, 2022, 10:04:42 am

On my generator the belt has an adjustment. Did the enclosed sets do away with it?

Two fixed pulleys and no adjustment. Guess it would be okay with perfect fitted belts but I tried a bunch of belts till I found one that would work. Little spring tensioner would easily resolve. A adjustable pulley would also work

Re: 2001 10k generator belt

Reply #48 – September 15, 2022, 10:44:21 am

Don't know why they eliminated the adjustment, agree having just the right size belt for a spare would be problematic.

Re: 2001 10k generator belt

Reply #49 – March 11, 2023, 10:15:03 am

Fighting this now. Removed broken broken napa 25-7300 from the housing and cannot figure put how it is possible to install new belt. Have a 10k powertec with the kubota engine. Crank pulley and water pump pulley, no tensioner or other belt adjustments available just like Scott reported. Have scoured the internet for a how to on re-installing this belt with no solutions. Have removed the water pump pulley and there is just no way to get it back in place with the tension required to stretch the belt. Pierce's suggestion of a longer stud to reinstall the WP pulley is a great idea, sounds like i need to find a slightly longer belt....

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