Fan belt fraying
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- 356 Fan
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Fan belt fraying
The current belt from a 356 sponsor, began fraying and I removed it before it broke. at about 200miles.Tension is 1/2 to 3/4 inch, correct # of spacers. I installed fan belts on my SCCA Conv D for over 22 years and never had a problem On Cinv D race car, using a gutted 6 volt gen and small aluminum pulley. On Speedster with the current problem 912 case, am using a 912 Generator and stock pulley . The alignment of pulleys seems to be ok and their are no discernable marks, tears on either pulley. Anyone have any ideas.?
ray rovinsky
- Glenn Ring
- 356 Fan
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Re: Fan belt fraying
I only use Gates belts. Double and triple check the pulley alignment.
Glenn Ring
Restored Bosch Distributors
Restored Bosch Distributors
- Wes Bender
- 356 Fan
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Re: Fan belt fraying
Also check the generator pulley halves for cracks. If the alignment is OK (check with a straight-edge), check the crankshaft pulley for any damage in the belt area. SOMETHING is eating on your belt.
Cheers,
Wes
Cheers,
Wes
Some days it's just not worth chewing through the restraints.....
- Bob Campbell
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Re: Fan belt fraying
Ray,
My first idea is that you got a bad fan belt.
You know what you are doing, so don't start doubting yourself and presume a problem.
If a second, fresh belt gets chewed up, then start looking.
You asked,
Bob
My first idea is that you got a bad fan belt.
You know what you are doing, so don't start doubting yourself and presume a problem.
If a second, fresh belt gets chewed up, then start looking.
You asked,
Bob
Bob Campbell
1956 Porsche Special
1962 S-90 Karmann Hardtop Elec. Sunroof
1964 SC Coupe
1965 C Cabriolet
It's either this or a real job.
http://www.356Services.com
1956 Porsche Special
1962 S-90 Karmann Hardtop Elec. Sunroof
1964 SC Coupe
1965 C Cabriolet
It's either this or a real job.
http://www.356Services.com
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- 356 Fan
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Re: Fan belt fraying
I had similar problem. Found out pulley halves were bent/warped. New pulleys-end of problem.
Jan Ramaker
Jan Ramaker
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- 356 Fan
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- Location: peckville Pa
Re: Fan belt fraying
Thanks everyone for responding Cleaned everything put a Gates belt on, replaced 1/2 of pulley outside AS that was all I had in my parts bin. If the problem occurs again I will replace bottom pulley and both haves of gen pulley
ray rovinsky
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- 356 Fan
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Re: Fan belt fraying
Ray,
If your crank pulley doesn't have any "chip-outs or burrs" in the Vee, you needn't remove the pulley (your words=bottom pulley).
Usually, the generator pulley 1/2s are the problem over the years if the wrong screwdriver is used in the slot(s) and get distorted and the 1/2s get warped!
Dick
If your crank pulley doesn't have any "chip-outs or burrs" in the Vee, you needn't remove the pulley (your words=bottom pulley).
Usually, the generator pulley 1/2s are the problem over the years if the wrong screwdriver is used in the slot(s) and get distorted and the 1/2s get warped!
Dick