Author Topic: Need help wiring my 318 on Engine Test Stand  (Read 4616 times)

Offline e-tek

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Need help wiring my 318 on Engine Test Stand
« on: March 01, 2009 - 12:36:24 PM »
I have this posted over at Garage Journal and am getting some good help, but thought I'd post it here too. I know you guys can offer some more tips and this thread might help the next guy who decides to test a MOPE MILL on a test stand....
So I wired it all up - like you would "ANY" engine...and of course found out the almight MOPE is not "any" engine!!!
So here's where I am: I got everything hooked up, added gas, cranked it over.....wouldn't ya know it - NO SPARK.....that's why I've been to the various sites looking around for info. Seems so basic..... NO SPARK - even from coil to distributor...I've got 12V to dist and coil, so I'll have to get a new coil and try it....engine ran when I removed it of course, so I thought all would be OK....

Here's a photo of the wiring I rigged up - maybe you see something I don't. (Red Pertronix to (+) Coil, Black Pertronix to (-) coil, 12V to coil(yellow coming from coil off camera).....SO NOW, A knowledgealbe member at GJ told me I don't have a Pertronix, but a stock MOPAR reluctor/pickup set-up. Being a MOAPR Newbie, I thought: no points? Must be Pertronix....but no-o-o-o...So now I find out you need the spark box also wired into the set up to get spark....

Here's the question: is there an easy way to do this on a test stand?? I already have it all restored and installed back on the firewall. I could remove it, but I think I need the Ballast Resistor" too right?











Offline Bullitt-

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Re: Need help wiring my 318 on Engine Test Stand
« Reply #1 on: March 01, 2009 - 02:46:49 PM »
Other than wiring up a Mopar setup there is the GM HEI option that looks easy (hope you haven't fried your reluctor)
http://duster318.freeservers.com/tech/hei.html
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Offline Chryco Psycho

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Re: Need help wiring my 318 on Engine Test Stand
« Reply #2 on: March 01, 2009 - 02:56:24 PM »
you need the ECU & it has to be grounded to get it to fire up , the dist is powered by the ECU not the 12 v you rigged up
 you can test the reluctor with an Ohm meter
« Last Edit: March 01, 2009 - 02:58:21 PM by Chryco Psycho »

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Offline e-tek

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Re: Need help wiring my 318 on Engine Test Stand
« Reply #3 on: March 01, 2009 - 08:36:02 PM »
Would I test across the red and black wires? Or inside the distributor?

Offline Chryco Psycho

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Re: Need help wiring my 318 on Engine Test Stand
« Reply #4 on: March 02, 2009 - 02:55:25 AM »
you can test it at the plug

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Offline Daves74chally

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Re: Need help wiring my 318 on Engine Test Stand
« Reply #5 on: March 02, 2009 - 09:51:42 PM »
When I had to dyno my motor we had to do this, I just picked up a few wiring diagrams. One out of my handy dandy 1974 Dodge manual. and this http://www.mymopar.com/downloads/elecignconv.pdf

I hopes this helps a lil
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Offline e-tek

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Re: Need help wiring my 318 on Engine Test Stand
« Reply #6 on: March 03, 2009 - 10:49:34 PM »
That DOES help - thanks Dave!!
I took the ECU and ballst off the firewall and attached to my Engine Test stand (with a GOOD Ground!!). Now I'm ready to hook it up (with your diagram) and do the pre-oil (when I find/make an oil pump tool). Hopefully it's running on Saturday - I'll post a vid!