340sFastback
Well-Known Member
Yeah its fatter then its supposed to be sticking out not engaging pulleys like it should. And it sticks out on water pump and crank pulley the same way
Shredded another PS/fan belt today. Can anybody recommend a good one?
- Thread starter Chris Nicholson
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That's interesting. It must be wider than the 3/8" advertised width. I sure wish parts were made right.
Here's a video of it running:
Also a pic of where the new AutoZone belt is tensioned, with where yesterday's NAPA or RockAuto was tensioned:
The previous belt was thin, smooth, and sat down in the groove well. It just kept stretching until it broke.
Mine has a 5-blade, no clutch, on a 318.
OK, that solid mount fan can work that belt. Trying to spin it up, and trying to slow it down.
The clutch fans are more like an automatic transmission, less stress on the belt.
☆☆☆☆☆
Your missing the spacer bushing on the power steering bolt . That will make the pump go out of alignment under torque That's your problem. If you need the spacer bushing I have them. I am in Pa. You will need to pay the shipping
Good eye! I had to look twice!
Ah, so that's why it's flexing! Okay, I'll PM you.
good eye!!!
This is the kind of effort that makes this the Greatest Mopar Show on Earth!
furrystump
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The only thing I can add is a 15450 belt is 15…450 45”s long. A 15455 is 45 1/2”s long. My power steering was wider too.
Yup, the P/s belt has always been wider than the alt belt. Alt belt numbers as above post. I can’t remember the P/s belt numbers. Kim
Most standard V belts are 40 degree section. Narrower at top = narrower at bottom. We have a place to use a 1/2 drive pull bar at power steering pump. So we might pull a more narrow belt to the bottom of the sheath. There is no drive down there. Just causes the sides to slip. It wouldn't get any better if we put our brother on that pull bar.
Todays metric dimensions change things a tad also. Same as our original E size tire lands between today's 195 and 205 (I think,, was too long ago). Anyway,,, belt standing just a little tall in the saddle shouldn't cause premature failure. Yes we loose a tad of depth too but won't reach the bottom. Again, mature is 3 to 4 years.
My 273 was last ran Aug 2022. If I pull that ps belt today (hardly used since install) and tossed it in the floor it would lay in nearly the same shape it was held for so long. A canvas belt doesn't play like a chain. So,, new belts is part of our prep for sale. Carry on
Todays metric dimensions change things a tad also. Same as our original E size tire lands between today's 195 and 205 (I think,, was too long ago). Anyway,,, belt standing just a little tall in the saddle shouldn't cause premature failure. Yes we loose a tad of depth too but won't reach the bottom. Again, mature is 3 to 4 years.
My 273 was last ran Aug 2022. If I pull that ps belt today (hardly used since install) and tossed it in the floor it would lay in nearly the same shape it was held for so long. A canvas belt doesn't play like a chain. So,, new belts is part of our prep for sale. Carry on
Your missing part is on its way .Steve
Thanks again Steve, I really appreciate it.
marksmopar1
Well-Known Member
Exactly , V Belts are driven on the sides not the bottom. If the belt is to low in the Sheath and riding on bottom the belt will slip or be thrown off. The belt in this case is either of wrong size/ type or the Sheath is worn.
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MILO
Well-Known Member
Autozone belts will work good I have them on my car and truck And no problems over the miles
I run autozone belts also. never had an issue. My Duster with a 100 amp one wire alternator @ 8000 rpms would destroy a belt in one 1/4 mile run if I didn't shut the alternator off. If the belt is trying to turn something that is holding back for what ever reason they will self destruct. Belt to tight , alternator or pump bearing bad. Any type of significant drag will destroy a belt.
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Missing spacer bushing is installed.
Once again, big thanks to Steve @Oldmanmopar for the part!
Next "test" is going to the cars & coffee in Franklin, TN this Saturday.
Once again, big thanks to Steve @Oldmanmopar for the part!
Next "test" is going to the cars & coffee in Franklin, TN this Saturday.
MILO
Well-Known Member
Something is not right pulley alignment, belt to wide for the pulley, pulleys not equal width. or something turning too hard or binding
Hate to sound like a broken record but it's probably an alignment issue and not a belt issue.
The brackets bend easily when u try to tighten the belt fiddle string tight. I always use a fair bit bigger washer on the bolt that goes thru the pump and timing cover where the slide part is. Kim
Up near the top of the page, Oldmanmopar noticed that my car was missing the spacer bushing that goes in the power steering bracket. He suspected that was allowing the bracket to flex under torque, breaking the belt. He sent me a bushing which I've installed.
I drove the car back to the storage unit last night, stopping to fill the tank along the way. The squeal I used to hear under acceleration was gone. I thought it was coming from the transmission, but it could have been the PS/fan/water pump belt.
AJ/FormS
68 Formua-S fastback clone 367/A833/GVod/3.55s
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How about 25 years? Honestly I don't remember ever changing mine, and the spare is still in the trunk.
please keep us updated as to whether the missing spacer fixed your belt problem!
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