In Need of Help with CUCV Issue

[lawmanokla@yahoo.com]

My 1985 CUCV has an issue. When I tried to start the CUCV, I noticed white smoke coming from something on the firewall, directly behind the air cleaner. There is a black plate that has something bolted to it. There is a single wire from the top bus bar to this mysterious thing, and one single wire coming from it to a selenoid. Can someone assit me with getting this changed out or at least let me know what this is? Thanks

 

[dstang97]

search resistor bypass. Pretty much get rid of it and feed 12v to top of gpr solenoid

 

[lawmanokla@yahoo.com]

So just remove it and run a single wire from the top or bottom bus bar directly to the selenoid it is already connected to. Sorry about double checking, but this is the first time writing a thread. Thanks.

 

[dstang97]

remove the Resistor completely off the fire wall and all wires attached to it. Then run a thick wire from your front battery Positive to top of glow plug relay.

 

[lawmanokla@yahoo.com]

Outstanding. I really appreciate your help brother. I will do that now. I will let you know what happens. lol....

 

[Warthog]

I would also add a fusible link into the wire. The stock setup has one.

Where in Okla are you?

 

[lawmanokla@yahoo.com]

I am located North of Skiatook, OK. What size fuse do you recommend?

 

[LeadHead]

You could also just disconnect the the wire from the resistor side (the one that connects the Glow Plug Relay to the resistor), and just run it straight to the 12v Bus.

Like this:

 

[lawmanokla@yahoo.com]

ok. This might sound crazy, but which bus bar is the 12v one? Top or bottom one?

 

[gimpyrobb]

ok. This might sound crazy, but which bus bar is the 12v one? Top or bottom one?

A volt meter should tell you easily.

 

[lawmanokla@yahoo.com]

cool. thanks for the help.

 

[Warthog]

The two bars behind the rear battery are for the 24v system. The 12v terminal is the diamond shaped connector next to the brake master cylinder.

The stock system has an 8 gauge feed wire with a 12 gauge fusible link. Fusible link wire is usually 4 sizes smaller that line it is protecting. It is made out of special rubber coating that should the wire melt it will keep the fire insude the housing.

http://www.steelsoldiers.com/cucv/74776-fusible-links-101-a.html?highlight=101

 

[M1008driver]

You can probably buy the fusible link wire locally. If not EBAY and others have it. Here is a link so you can see what it is. I am not pushing this company, just showing what to look for.

Dorman Products 85766 Dorman Electrical Wire & Cable

To be honest my 12 volt 8 gauge wire from the battery has a fusible link and I did not use one on the short wire from the gp relay to the 12 volt bus. I just used the wire off the right side of the resister and replaced one of the connector rings because it was too small.

Not my pic-for information only...

 

[lawmanokla@yahoo.com]

dstang...... got a minute?

 

[dstang97]

dstang...... got a minute?

yep

 

[lawmanokla@yahoo.com]

I finally got it fixed. I removed the ballast resistor and connected the gpr to the bus bar. No smoke and no fire...... lol. Wanted to thank all of you that replied to my posting. I will be adding a pic of my cucv soon. I have installed a lightbar, radio console and radios. My wife and I are storm chasers, so instead of using our monte carlo to chase, we are going to use this cucv. I dont mind it getting pelted with hail, but my wife is concerned about the monte carlo getting pelted. This has been a long project for me due to my TBI and other issues. Feels good to accomplish something. Once again, thanks for the help.

 

[Warthog]

Which buss bar did you connect too? The one by the master cylinder or the one behind the rear battery?

 

[lawmanokla@yahoo.com]

I connected it to the one by the master cylinder. Waited to see if there were any problems, ie smoke or something, but nothing. She fired right up more than once.

 

[Warthog]

Good job.

I just wanted to make sure you weren't feeding the GPs a straight 24v.