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05-19-2023, 02:05 PM | #1 |
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Correct A belt size.
I decided to replace the belt on my 29 Tudor and save the old one as a spare. Ordered one Snyder's that is a A-8620 and put it on and tensioned. It appears too long as it allows the belt at the generator pulley to touch the lower radiator hose rubber part. My old belt was a 5L430, which measures as a 5/8" width 43" long. Measured all three pulleys against the spares I have and they're identical. Went to our local farm store and got a fractional horsepower 5L430 belt and it fits perfectly. Belt is about an inch off the lower radiator hose and the slotted accessory bracket off the timing cover is about halfway in it's slot. It was topped out with the Snyder belt. .
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05-19-2023, 04:38 PM | #2 | |
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Re: Correct A belt size.
Quote:
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05-19-2023, 06:49 PM | #3 |
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Re: Correct A belt size.
air conditioner?
Yeah, we call those windows
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Keith Shawnee OK '31 SW 160-B |
05-19-2023, 07:07 PM | #4 |
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Re: Correct A belt size.
Used a cogged BX42 - fits great on my alternator-equipped 31.
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05-20-2023, 06:32 PM | #5 |
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Re: Correct A belt size.
Thanks for the insightful help.
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05-21-2023, 02:39 PM | #6 |
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Re: Correct A belt size.
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1921 Runabout 1930 Tudor Early 1930 AA Speed costs money. How fast do you want to go? |
05-21-2023, 04:04 PM | #7 |
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Re: Correct A belt size.
I think the correct term is "notched V-belt". I use a BX42 also and it works great.
EDIT - my belt is BX40, not BX42. I tried the BX42 and it was too long. I think the BX42 would work but it's how you orient the intermediate bracket. (I have an alternator, and the pulley is smaller than the pulley for the generator). JayJay
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JayJay San Francisco Bay Area ------------------------ 1930 Murray Town Sedan 1931 Briggs S/W Town Sedan Last edited by JayJay; 05-23-2023 at 10:26 AM. |
05-21-2023, 06:27 PM | #8 |
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Re: Correct A belt size.
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05-21-2023, 06:33 PM | #9 |
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Re: Correct A belt size.
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JayJay San Francisco Bay Area ------------------------ 1930 Murray Town Sedan 1931 Briggs S/W Town Sedan |
05-21-2023, 07:05 PM | #10 |
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Re: Correct A belt size.
So in summary, how is it Snyder's is selling a belt 1" longer than I need, and 2" longer than a BX42?
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05-21-2023, 11:43 PM | #11 |
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Re: Correct A belt size.
Ramman, I have snyders A8620 belt on my 31 coupe with original generator and have 3/4 in. clearence between the generator pulley and radiator hose.
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05-22-2023, 07:37 PM | #12 |
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Re: Correct A belt size.
What about the model B belt? Does anyone have the size or modern part no?
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05-22-2023, 08:06 PM | #13 |
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Re: Correct A belt size.
I'm thinking that I read that the pulley on an alternator is smaller than a generator pulley. Others will chime in???
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05-22-2023, 09:26 PM | #14 |
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Re: Correct A belt size.
All three of my pulleys are the stock size.
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05-22-2023, 10:07 PM | #15 |
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Re: Correct A belt size.
What you are referring to as a cogged belt is known as a timing belt in the machine and automation world. They are used to drive pulleys that have matching teeth spacings and provide a positive non-slip connection for precision rotation and location.
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05-23-2023, 03:26 PM | #16 |
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Re: Correct A belt size.
I have been following this thread for a couple of days. Snyders as well as other venders have been selling fan belts for decades. Many many belts have gone out the door to satisfied customers. Maybe the belt that you have is correct size, but the car you are putting it on has a modification that is unknown. As a small parts vender, I would want a customer to contact me within any problem. Maybe a call to Don Snyder would be the proper thing to do, especially if the belt is truly the wrong size.
STUART MODEL A PARTS & SERVICE Fhane Jones 1924 NW Pine Tree Lane Stuart, Florida 34994 772 341 8291 [email protected] |
05-24-2023, 06:59 AM | #17 | |
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Re: Correct A belt size.
Quote:
As you say, the very thin timing belts have a positive tooth engagement. Using these belts would save energy. |
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04-20-2024, 09:16 PM | #18 |
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Re: Correct A belt size.
Anyone here with a Generator and Aluminum Fan/Pulley tell me what brand Name Belt and Part Number they are using?
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04-20-2024, 09:44 PM | #19 |
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Re: Correct A belt size.
B-41 ,,the belt is stretched out from being 20 years old and the adjuster is maxed out, NAPA brand belt
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