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Old 05-13-2020, 04:36 PM   #1
DBSHELTON
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Default Distributor Machine Build

Anyone got an old distributor machine in their shop that still works? I would like to check the curve on a few distributors that i have.

Last edited by DBSHELTON; 05-30-2020 at 07:26 AM.
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Old 05-13-2020, 06:17 PM   #2
Patrick L.
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Default Re: Distributor machine

Nope, ours disappeared decades ago. very useful machines.
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Old 05-13-2020, 07:30 PM   #3
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Default Re: Distributor machine

I use a Ford heyer unit. Flathead v8’s with universal and longshaft capabilities
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Old 05-13-2020, 09:22 PM   #4
Mikeinnj
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Default Re: Distributor machine

You can build your own Distributor Test Machine for under $100.

Here is a link on how to do that,.....http://www.ourdigitalmags.com/public...articleBrowser

Mike in New Jersey
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Old 05-14-2020, 07:28 AM   #5
DBSHELTON
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Default Re: Distributor machine

Thanks Mike, I wonder how I could get the photos to show up in the article?
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Old 05-14-2020, 01:08 PM   #6
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Default Re: Distributor machine

For DB, click on upper right corner of page (open book), it will take you to the article with photos.
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Old 05-14-2020, 02:32 PM   #7
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Default Re: Distributor machine

Quote:
Originally Posted by KUDZUVIPER View Post
For DB, click on upper right corner of page (open book), it will take you to the article with photos.

Duh, thanks for helping me out.
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Old 05-28-2020, 06:58 AM   #8
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Default Re: Distributor machine

This has turned into a build thread. I may be over thinking this but I have a digital Automotive tester I want to use on my homemade distributor machine to check dwell and RPM. Is says to connect the COM lead to the battery Neg terminal and the V or + lead on the meter to the Coil - terminal. On 6v Pos ground this would this be correct?
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Old 05-28-2020, 08:16 AM   #9
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Default Re: Distributor machine

Buy a timing indicator from the vendors,verify TDC and mark the crankshaft pulley and set the indicator.Install a point impulse tach (cheapie tach and dwell meter) shine timing light on mark and rev engine a mechanical advance distributor should increase 1 degree per 100 rpm,so for instance 20 degrees advance at 2000 rpm.I verify at 1000,1500 and 2400 rpm.If your engine is stock other than the distributor it is very tolerant of timing deviation,in other words a basic check of the curve is sufficient.As you raise volumetric effciency through performance upgrades your timing 'tolerance' gets shorter.But in either case you dont have to get as precise as the article does.
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Old 05-28-2020, 09:39 AM   #10
DBSHELTON
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Default Re: Distributor machine

Thanks. Still not sure how to hook up my meter correctly.
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Old 05-28-2020, 09:46 AM   #11
Jack Shaft
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Default Re: Distributor machine

A tach and dwell meter? Black is ground,green(or red)goes to the points side of the coil.
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Old 05-29-2020, 04:58 AM   #12
DBSHELTON
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That didn't work
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Old 05-29-2020, 07:43 AM   #13
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Default Re: Distributor machine

post a picture of your meter
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Old 05-29-2020, 10:52 AM   #14
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Default Re: Distributor machine

Quote:
Originally Posted by DBSHELTON View Post
That didn't work
Try reversing the leads.
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Play it again Sam.
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Old 05-29-2020, 05:59 PM   #15
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I think my meter is bad. Reads very inconsistent.
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Old 05-30-2020, 06:51 AM   #16
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Default Re: Distributor machine

Found out I had a loose connection in my meter. Correct hookup for Dwell/Tach for 6v POS Ground is Red to Ground and Black to Points.
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Old 05-30-2020, 07:22 AM   #17
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Default Re: Distributor Machine Build

Photos attached
Attached Images
File Type: jpg DM3.jpg (117.8 KB, 81 views)
File Type: jpg DM4.jpg (124.0 KB, 64 views)

Last edited by DBSHELTON; 05-30-2020 at 07:27 AM.
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Old 05-30-2020, 07:54 AM   #18
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My apologies on polarity,I set my car up 12v neg ground.
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Old 05-30-2020, 09:01 AM   #19
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Default Re: Distributor machine

No apology needed. It's all good.
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