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Old 10-19-2020, 11:36 AM   #1
1936 ford pickup
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Default Fan Belt Tension Adjuster....

Hello to ALL....

I have a '36 Ford pickup with an alternator and wanted to replace the Fan Belt with new. I utilized a 7/8" x 1 1/4" long Coupling Nut (with 1/2-13 NC internal thread) and a 1/2-13 NC x 1 1/4" long Hex Head Bolt. I used round cardboard cut-outs under the Coupling Nut and above the Hex Head Bolt to make sure I did not scratch the paint on the intake manifold and bottom of the Alternator.
Slowly turning the Hex Head Bolt counter-clockwise put tension on the Fan Belt.
Worked perfect so I wanted to share and hope it may help someone else out there. Just curious as to what others out there do for Fan Belt tensioning.

Bruce in Ca.
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Last edited by 1936 ford pickup; 10-19-2020 at 12:40 PM.
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Old 10-19-2020, 11:55 AM   #2
Jack E/NJ
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Default Re: Fan Belt Tension Adjuster....

Broom handle. 8^) Jack E/NJ
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Old 10-19-2020, 12:48 PM   #3
51 MERC-CT
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Default Re: Fan Belt Tension Adjuster....

double post




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Old 10-19-2020, 12:50 PM   #4
51 MERC-CT
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Default Re: Fan Belt Tension Adjuster....

Quote:
Originally Posted by 1936 ford pickup View Post
Hello to ALL....

I have a '36 Ford pickup with an alternator and wanted to replace the Fan Belt with new. I utilized a 7/8" x 1 1/4" long Coupling Nut (with 1/2-13 NC internal thread) and a 1/2-13 NC x 1 1/4" long Hex Head Bolt. I used round cardboard cut-outs under the Coupling Nut and above the Hex Head Bolt to make sure I did not scratch the paint on the intake manifold and bottom of the Alternator.
Slowly turning the Hex Head Bolt counter-clockwise put tension on the Fan Belt.
Worked perfect so I wanted to share and hope it may help someone else out there. Just curious as to what others out there do for Fan Belt tensioning.

Bruce in Ca.

Same thing over 50 years ago.( Necessity is the mother of invention )
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Old 10-19-2020, 09:59 PM   #5
GB SISSON
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Default Re: Fan Belt Tension Adjuster....

I use a 2x4 with a long diagonal cut on one end. I really like this coupling nut thing and can't wait to copy it. Thank you Bruce!
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Old 10-20-2020, 11:36 AM   #6
Jeff/Illinois
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Default Re: Fan Belt Tension Adjuster....

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Good idea. It is tricky to tighten the fan belt on these motors, at least I always thought so.

We have a '36 PU too, anxious to see yours when done please post pics
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Old 10-20-2020, 12:23 PM   #7
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Default Re: Fan Belt Tension Adjuster....

Just don't get them so tight that they screw up the generator.
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