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Old 02-08-2020, 08:46 PM   #1
Big Shark
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Default 1937 fan belt short

I have a stock 37 sedan with a 85hp flathead. Fan belt is short. P.N. 78-8620-A. Is this the correct part. Got it from Drake. Catalog said it was for a 37 passenger. Thanks Bruce
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Old 02-08-2020, 10:54 PM   #2
deuce_roadster
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Default Re: 1937 fan belt short

Make sure you have a 37 intake manifold, 37 generator and 37 pulley. I am the LAST person to say a remake part is correct, but if over the years, the intake or generator was rebuilt with a larger pulley or whatever it could cause this sort of issue. That part number looks correct to me.
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Old 02-08-2020, 11:24 PM   #3
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Default Re: 1937 fan belt short

See > https://www.fordbarn.com/forum/showt...+ford+fan+belt
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Old 02-09-2020, 08:04 AM   #4
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Default Re: 1937 fan belt short

Try a B54 . worked for me ! kx
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Old 02-09-2020, 08:21 AM   #5
Big Shark
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Default Re: 1937 fan belt short

Anyone have a pic of an original intake to compare with?
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Old 02-09-2020, 08:34 AM   #6
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Default Re: 1937 fan belt short

Here is a '36 and '37 intake.The generator sits higher on the '36.
Attached Images
File Type: jpg 36 intake.jpg (106.5 KB, 22 views)
File Type: jpg 37 intake.jpg (114.8 KB, 23 views)

Last edited by deuce lover; 02-09-2020 at 08:50 AM.
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Old 02-09-2020, 09:16 AM   #7
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Default Re: 1937 fan belt short

Depends on what pulley is on the generator to...From smallest to largest around is 2 sizes of belts different !
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Old 02-09-2020, 09:39 AM   #8
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Default Re: 1937 fan belt short

Just measure it and get one 1" longer. A b54 would measure about 57".
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Old 02-09-2020, 11:33 AM   #9
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Default Re: 1937 fan belt short

trying to post pics????????
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Old 02-09-2020, 11:36 AM   #10
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Default Re: 1937 fan belt short

Picture posting tips...

https://www.fordbarn.com/forum/showt...hlight=picture
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Old 02-09-2020, 11:53 AM   #11
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Default Re: 1937 fan belt short

Quote:
Originally Posted by Big Shark View Post
trying to post pics????????
If you still can't get the photos to post, email them to me and I can post them for you: jseery@ymail.com
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Old 02-09-2020, 01:22 PM   #12
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Default Re: 1937 fan belt short

Quote:
Originally Posted by Big Shark View Post
I have a stock 37 sedan with a 85hp flathead. Fan belt is short. P.N. 78-8620-A. Is this the correct part. Got it from Drake. Catalog said it was for a 37 passenger. Thanks Bruce
Drake repop is not the correct length for your '37.
If you locate a NOS belt of that same number, you can easily see the Drake belt is shorter.
If you have the correct intake and generator pulley (3 11/16" diameter), you will be unable to get his belt to fit regardless of what you may try. If you have a later pulley (3 3/16" diameter, introduced late 1940 ) you may be able to tip the generator forward, slip the belt on and get the generator back in place. It's close, but can and has been done.
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Old 02-09-2020, 11:05 PM   #13
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Default Re: 1937 fan belt short

Here are some photos Bruce wanted posted.
Attached Images
File Type: jpg 20200209_091343_Burst01.jpg (50.9 KB, 17 views)
File Type: jpg 20200209_091658_Burst01.jpg (52.2 KB, 17 views)
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Old 02-09-2020, 11:14 PM   #14
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Default Re: 1937 fan belt short

Quote:
Originally Posted by Kube View Post
Drake repop is not the correct length for your '37.
If you locate a NOS belt of that same number, you can easily see the Drake belt is shorter.
If you have the correct intake and generator pulley (3 11/16" diameter), you will be unable to get his belt to fit regardless of what you may try. If you have a later pulley (3 3/16" diameter, introduced late 1940 ) you may be able to tip the generator forward, slip the belt on and get the generator back in place. It's close, but can and has been done.

I've had the same issue with my truck. I run one too long now. Car one is way too short. I don't like the generator up so far but it works. Maybe I'll look at the car version.
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