Thought we might talk about the change from the FLAT Model T belt, to the "V" type belt. START THINKING!!!
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EVOLUTION OF THE FAN BELT
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I am pretty sure that it has alot to do with the added loads (generator, waterpump, etc.) added to the belt. While a flat belt will run a fan even in wet conditions it lacks the grip and strength to handle theoads without being so tight that it affects the bearings in an adverse way. The V belt grips tighter into the tapered pulley and is layered for strength and will not slip with the loads without being so tight it affects the bearings of components. Just an observarion from a farm boy who has ran a hammermill ran with an endless belt. The flat endless belt had to have a near exact alignment, what a pain to line up. RodMuch of the social history of the Western world, over the past three decades, has been a history of replacing what worked with what sounded good.
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and now were back to the flat serpentine belts with grooves. Maybe Henry should have grooved his pulleys and belts and kept using them
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With a serpentine belt, anything running on the INSIDE turns CW, anything running on the OUTSIDE turns CCW.
Some Jeep Cherokees ran the water pump on the inside & some on the outside. You had to make sure you put a pump on, with the vane angles the right WAY. WRONG angle would run the water the wrong way & UN-COOL the engine---NO, WAIT, to do that, you'd have to flip the thermostat!!!----There I go, OVERTHINKING stuff TOO MUCH, again!!!
Dad Idiot
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THIS can be DANGEROUS, but when I've had a perfectly GOOD belt, except for having a hard glaze on it, while running, I carefully scrape the sides with the end of a LARGE file, then it grips good, again!----(SORRY for such a LOOOOONG sentence!--You could forget the subject, before you finished it!)
"Maybe" my brain's COOKED??---106 here today!!! I could fry eggs on my truck tarp, except I'm out of PAM!
Bill Longwinded
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The "intermediate " step would be the cogged v belt. Makes going around the pulleys easier.Alaskan A's
Antique Auto Mushers of Alaska
Model A Ford Club of America
Model A Restorers Club
Antique Automobile Club of America
Mullins Owners Club
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The reason for cogs I'm told, is they run cooler. Therefore they last longer.
What about belt grip? In cars, I've never used it. On kitchen exhaust and ac units, it will make the belt last up to 50% longer. There's a belt driven mixer called a varidpeed. When you shift gears both pulleys (tensioned together) open and close, changing ratios. I made the mistake of belt grip on one, and it made the belt slip, so I had to replace it.
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Can you IMAGINE if you had to maintain ALL those flat belts in the Ford Factory!!!---I "wonder"--Do those clips & pins ever WEAR out!!!!
Were they belting or leather"--Are there WAYS to splice leather ones???---I don't know of an ANIMAL THAT looooong????---AND, I've watched a LOTS of NATURE shows! Did you know that the ELEPHANT is the ONLY 4 legged animal, where their knees all bend forward, like us?
Friend, TED, (RIP) had a kit with pins & clips.
Bill Amazed
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I remember vintage flat belts with flat pulleys operating single pieces of machinery; remember several flat belts running several pieces of machinery off of a single jack shaft turned with one engine; and even built metal, flat pulleys from scratch and installed new flat belts with a single metal hinged splice joint.
If flat belts were slightly loose and slipped, rosin was applied to the in-sides of these belts ...... same type of rosin as violin bow rosin.
With any slight misalignment between pulleys, the improved rubber vee belt will stay in the metal pulley's vee; however, with any slight misalignment between flat pulleys, flat belts will gradually move sideways off of the pulleys ............ that is unless the metal pulley has a high, protruding raised metal circular shoulder to prevent the flat belt from moving further outwards.
For Model A flat belt installation, my guess is the way most restored Model A pulleys for the crankshaft, generator, and water pump are "misaligned" today, with metal flat belts and flat pulleys, one could start his Model A, and before one had time to adjust the spark handle downwards, the water pump or generator would have cease to function because the flat belt had moved sideways off of the flat belt pulley.
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A GENIUS Friend ran experiments separating ground fibers from ground rubber. He used STATIC electricity from the MAIN belt, atop an OLD Machine Shop, here in town, called "ACME MACHINE SHOP"---
Homer was a "self" taught GENIUS--I could write a BOOK of THINGS HE TAUGHT ME!! He & another Man perfected the method of turning Vegetable Oils into MARGARINE!!! He even designed & built separating equipment, for a TUNGSTEN mine!!!--Along with first opening up & exploring Boyden Caverns!!
Bill W.
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by DennisAnybody run a fan belt that is not wrapped or a cogged belt. Mine developed a squeak that wasn't consistent with valve train noise nor crankshaft or rods.I have all three fan pulley, crankshaft, and alternator new with about 1500 miles on them. They look new. I never have had luck with the wrapped belts. Any suggestions?...
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Channel: Model A Forum
08-06-2017, 01:20 AM -
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by fred93I was detailing the engine compartment on a 29 Tudor that I have been restoring for a friend and I noticed that the fan belt was touching the lower radiator hose. I thought at first that the belt might be incorrect or old and stretched out. So I grabbed a new one off the shelf and it seems to be the same length (both belts have a "G 07" mark) . Can I buy a shorter belt somewhere?You do not have permission to view this gallery.
This gallery has 1 photos.-
Channel: Model A Forum
05-23-2020, 03:21 PM -
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by Bob CI saw this on Ebay and I assume it is a reproduction or NORS??
BobYou do not have permission to view this gallery.
This gallery has 2 photos.-
Channel: Model A Forum
11-17-2019, 01:35 PM -
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I am trapped with one car in Florida (with my Les Andrews Red Book) and one in Georgia. I think that my question would be answered with the book. I am working on the one in Georgia and need to buy a fan belt. Can anyone tell me the size and if I can just get this at an auto parts store?
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Channel: Model A Forum
06-21-2017, 12:11 PM -
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by copgibI have decided to change my generator or for a alternator on my 1930 Model A. My question is: What is the best belt to buy for my new alternator? Is one better than another? Thanks Hugh
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Channel: Model A Forum
03-08-2019, 07:32 PM -
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by canadiannon authentic . But would anyone have approx diameter and width of a pulley to use on a GM Alternator. I can order one from vendor but because I am on the ass hole of the planet its 3 weeks delivery , just wondering if guys are using a pulley from some other application that I can get locally. thanks
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Channel: Model A Forum
04-10-2018, 09:39 AM -
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This car sure looks nice in the pictures. One thing I noticed right away is the belt riding a bit low in the pulleys. Normally the correct belt will ride higher in the aluminum fan. The seller mentions the belt slips at higher speed, and I'd try another belt.
https://www.ebay.com/itm/17363359667...MakeTrack=true...-
Channel: Model A Forum
11-10-2018, 04:41 PM -
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Adjustment on the fan belt is at 1/2in when cold with leakless water pump. ????
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08-07-2020, 01:00 PM -
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by davewSo, replaced radiator with new bergs, replaced water pump with Rupert extreme leak less, replaced 4 blade fan with new two blade fan. Hooked everything up, started car and noticed fan belt wobbleing on far side. Took a straight edge and it seems that the pulleys are about 1/8 or so out of alignment.. Didn't take the generator off just loosened it so assuming the fan pulley is the problem. It's on...
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08-05-2018, 07:52 PM -
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by Bill in NJIs it possible to buy one from a local auto parts store ? Maybe a part # etc ? Thanks in advance !!
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05-13-2018, 02:08 PM -
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