Author Topic: Distributor Vacuum Port  (Read 377 times)

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Offline markharvey9077@gmail.com

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Distributor Vacuum Port
« on: February 10, 2019, 02:20:05 am »
I just realized the vacuum port on the pax side of my holley broke off....I would have to drill is out, plug it or.....tap in a new small tube and connect...

I am not using a distributor vacuum control module....

Where do I connect my distibutor...and do I need to draw vac off the carb...the manifold...and just plug the carb port...

Offline CHOPPERS

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Re: Distributor Vacuum Port
« Reply #1 on: February 10, 2019, 06:17:13 am »
if you're talking about the small brass 90 degree nipple screwed into the metering block, you should be able to reverse extract it, New ones are available, or at least hardware store for an almost correct fitting.
Steve-o

1970 MUSTANG MACH 1 'Q' CODE AUTOMATIC   "Calypso"

Offline rockhouse66

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Re: Distributor Vacuum Port
« Reply #2 on: February 10, 2019, 08:18:54 am »
If you are using the vacuum advance on the distributor, then it is supposed to be connected to the vacuum port on the carb metering block.  I think it is probably 1/8" NPT so you could just try to drill it and run a tap in it and the broken part should disappear when tapped.  It should also come out pretty easily as noted above, using an extractor tool.
« Last Edit: February 10, 2019, 10:10:14 am by rockhouse66 »
Jim

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Offline RoyceP

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Re: Distributor Vacuum Port
« Reply #3 on: February 10, 2019, 08:34:17 am »
It is 1/8" NPT.

If you are using the vacuum advance on the distributor, then it is supposed to be connected to the vacuum port on the carb metering block.  I think it is probably 1/4" NPT so you could just try to drill it and run a tap in it and the broken part should disappear when tapped.  It should also come out pretty easily as noted above, using an extractor tool.
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Offline rockhouse66

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Re: Distributor Vacuum Port
« Reply #4 on: February 10, 2019, 10:09:51 am »
Thanks for the correction Royce.  I have edited my post.
Jim

'69 Grande CJ

Online redscj

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Re: Distributor Vacuum Port
« Reply #5 on: February 10, 2019, 11:45:02 am »
     Before using the bolt extractor. Warm the part up. The part should expand away from the fitting a little. Makes the removal of the broken piece a little easier.
Grant
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Offline markharvey9077@gmail.com

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Re: Distributor Vacuum Port
« Reply #6 on: February 11, 2019, 01:32:37 am »
that was easy.....it was in 1/4 inch....

So ...where do I port the distributor line...carb or manifold....


Offline RoyceP

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Re: Distributor Vacuum Port
« Reply #7 on: February 11, 2019, 09:44:06 am »
Carburetor.

that was easy.....it was in 1/4 inch....

So ...where do I port the distributor line...carb or manifold....
1910 Model T Ford Touring Red
1915 Model T Ford Touring Black
1914 Model T Ford Touring
1917 Model T Ford Torpedo Green
1968 Mercury Cougar XR-7 GT-E Green 427 W Code
1968 Mercury Cougar XR-7 428CJ R code 3.91 C6