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How would you wire up a Tacometer to the M38?
I have the full waterproof 24v system.
I notice the Plug part number 73748888 on the Auto-Lite Distributor cover assembly could be removed and gives access to the coil I think?
I would like to set the tick over a bit more accuratly, I have been using a inexpensive Laser type gun on the Crankshaft nut which works okay but fluctuates a lot.
It will not be a permanent fixture just used for tuning up.
Any ideas would be appreciated.
Horse.

Hi Horse,
I think having one of these 24V military adapter kits would solve your question.

http://willysmjeeps.com/v2/modules.php? ... dapter+kit

http://willysmjeeps.com/v2/modules.php? ... ht=adapter

Good luck!

Thanks Ron, that would be a nice kit to have.
Any other way around the problem until one pops up at a reasonable price?
Horse.

Same way the Army did.













These adapters can be used easily with both military test sets and civvy test sets. Just follow the directions for test connections of the Dwell/Tach you are using and employ the appropriate military harness adapter. Same with timing lights and coil test sets.

Horse said:

Any other way around the problem until one pops up at a reasonable price?
Horse.

Just use old harness parts and plugs and build your own adapters.

Thanks Wes, will keep an eye out a good bit of kit to have.
Horse

What brand model dwell tach are you using?

Here's another helpful Publication from PS magazine: chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/http://willysmjeeps.com/downloads/24%20 ... esting.pdf

I have not bought one yet as I did not know how to wire it.
Open to advice on that as well.
Horse

I have used a Military Simpson for many years and got used to it. I also have civvy Dwell/Tachs from Craftsman and Sun.

You can download and review test set handbooks here:
http://www.willysmjeeps.com/v2/modules. ... oad&cid=57

Thanks for the information.
I will check out the suggested units and see what is available over this side.
Horse.

Bit of a result.
One of my old timing lights has a switch to show RPM which I had forgotten about, so all is well again.
I will still look out for the military kit.
Horse.