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Old 09-20-2011, 09:23 AM   #1
Joe KCMO
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Default 1939 Intake Manifold Vacuum Fittings

Does anyone know the size of the fittings that screw into the vacuum holes in a 1939 intake manifold(I believe these are the same for 32 to 38 as well). There are two threaded holes next to the intake runners. One near the third runner from the front for the distributor and one near the third runner from the back for the windshield wiper. These are on the drivers side. Thank you for any help in identifying the size and possible purchase place.

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Old 09-20-2011, 03:41 PM   #2
Bruce Lancaster
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Default Re: 1939 Intake Manifold Vacuum Fittings

I believe these are/were special Weatherheads that worked like a compression fitting pinching in on the tube when tightened...I have the number in an ancient catalog but would be surprised if they are still available. Something odd lik 3/16"
I think Nacewicz can supply repros.
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Old 09-24-2011, 04:31 PM   #3
ken ct
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Default Re: 1939 Intake Manifold Vacuum Fittings

Quote:
Originally Posted by Joe KCMO View Post
Does anyone know the size of the fittings that screw into the vacuum holes in a 1939 intake manifold(I believe these are the same for 32 to 38 as well). There are two threaded holes next to the intake runners. One near the third runner from the front for the distributor and one near the third runner from the back for the windshield wiper. These are on the drivers side. Thank you for any help in identifying the size and possible purchase place.
I have a couple of the fittings but no tubing. You could use soft copper tubing, [These are nos.] ones. ken ct pm or email.
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Old 09-24-2011, 05:53 PM   #4
Kube
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Default Re: 1939 Intake Manifold Vacuum Fittings

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Quote:
Originally Posted by Joe KCMO View Post
Does anyone know the size of the fittings that screw into the vacuum holes in a 1939 intake manifold(I believe these are the same for 32 to 38 as well). There are two threaded holes next to the intake runners. One near the third runner from the front for the distributor and one near the third runner from the back for the windshield wiper. These are on the drivers side. Thank you for any help in identifying the size and possible purchase place.
The compression nut was in fact special to Fords specs. It was 3/8-24 thread. The tubing was 3/16".
I can send you a photo if desired.
Mike
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