Fan Belt Adjustment on 27 Coupe

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BLB27
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Joined: Thu Jul 23, 2020 9:28 pm
First Name: Bruce
Last Name: Brakke
* REQUIRED* Type and Year of Model Ts owned: 1927 coupe
Location: Ames, Iowa

Fan Belt Adjustment on 27 Coupe

Post by BLB27 » Tue Apr 11, 2023 11:17 pm

What tool is used to adjust the fan belt on 3004E fan bracket on the 1927 engine?
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Humblej
Posts: 1957
Joined: Sun Jan 06, 2019 12:23 pm
First Name: Jeff
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* REQUIRED* Type and Year of Model Ts owned: 1926 Canadian coupe, 1924 TT C-cab, 1924 runabout
Location: Charlevoix, Mi
Board Member Since: 2006

Re: Fan Belt Adjustment on 27 Coupe

Post by Humblej » Wed Apr 12, 2023 7:51 am

Bruce,
There were different styles of 26-27 fan hubs, I dont know what a 3004E is, mine has a square boss opposite the fan shaft stub, I can put a 1/2" or so wrench on the stub to rotate the hub. Do not tighten the fan belt tighter than you can rotate the fan blades by hand.
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DanTreace
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* REQUIRED* Type and Year of Model Ts owned: ‘12 open express,'23 cutoff, '27 touring
Location: North Central FL
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Re: Fan Belt Adjustment on 27 Coupe

Post by DanTreace » Wed Apr 12, 2023 8:08 am

Use open end wrench to loosen the large hex lock nut with its lock washer. Hold the fan shaft tang end with smaller wrench to keep it in place. If that turns, the fan shaft gets loose in the fan pulley. Now, use a smaller wrench and spin/swing the eccentric tab to raise and lower, that tightens the fan belt. Turn the lock hex nut back in place to keep adjustment.

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The best way is always the simplest. The attics of the world are cluttered up with complicated failures. Henry Ford
Don’t find fault, find a remedy; anybody can complain. Henry Ford
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Craig Leach
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* REQUIRED* Type and Year of Model Ts owned: 1919 Firetruck/1922 Speedster
Location: Laveen Az

Re: Fan Belt Adjustment on 27 Coupe

Post by Craig Leach » Thu Apr 13, 2023 2:50 pm

This is one of the many places that a set of 30/60 degree open end wrenches is worth the price.
Craig.
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