Help Help Help!!!

[navyflyer72]

I was just jumpering teh underdrive pulley pins on my DC controller to give a constant 10% minimum current, when I started the engine the fan did not turn at all, (may be the way I have the DC Controller wired, however the BIG problem I noticed was that my upper radiator hose was being collapsed, as if there was a blockage or something and the walls of the hose were being collapsed. I shut down the engine and checked the radiator fluid level and it was about 3 inches below the cap level (the engine was cold). So I filled the radiator to full and I wanted to see if anyone knew why this might happen before I start the engine again. Problem is I have to leave for a 4 hour trip in this car in about 5 hours, so I am in need of some seriously fast assistance. Thanks.

-George

[79_EFI_Z]

if it was collapsed right at start up it could be that maybe there was a vacuum in the system after the car cooled last time u ran it? and the air in the system contracted?

[gmachinz]

George, exactly how do you have the controller wired? There shouldn't be any confusion but I'd like to know and see if I can help you out. -Jabin

[engine]

From the DC website:


Underdrive

If underdrive pulleys are installed and the vehicle is prone to overheating at idle, a jumper is provided (13,14) to render a 10 % minimum current to the fan whenever the ignition is on in order to aid in convection flow. The ignition input wire must be connected to use this feature.





what temperature are you seeing? Do you have any other jumpers installed? What temp does the fan turn on?

[Dust87ss]

Do you have the IGN wire hooked up to the controller or only the BATT wires?

[navyflyer72]

i have the DC controller wired as shown above, except I have the power wire going to a battery junction block (battery was relocated to trunk) and I have the ground to a chassis ground, and I have the surge protector installed across the positive-negitive terminals of the DC controller. I think I may have found the problem but need help with the solution. You see I have a Be Cool radiator (for manual trans) and a catch can that is not vented. As soon as I start the engine the top radiator hose collapses, if I shut off the engine the hose remains collapsed, when I open the radiator the hose returns to normal. I think I need a vent somewhere in the system, most likely in the catch can, but how do I do that, there is only a petcock on the bottom of the catch can for draining it, but no vent. Any ideas would be appreciated.

-George

[gmachinz]

Hopefully you do not have your main charge lead for the battery also hooked up on that junction-anything approaching 14V can damage the controller. Stay at 12.40 or lower on the +12v battery lead for the controller. -Jabin

[Charley Lillard]

Sounds like your thermostat is still closed.

[navyflyer72]

I swapped engines due to a ring sealing issue, put a GM Perf crate motor in her (very little HP, but this is my daily driver currently and I need her reliable through the summer), so she has the 350/290 motor, with a cam swap, edelbrock air gap and Demon 650 and she is running great. I drilled a smaill 1/8" hole in the top of the overflow and all of a sudden she runs right at 180 even in traffic. Understand that this is with both jumpers on the DC controller, but I am still a bit impressed with the performance. Can't wait to see how it performs in the heat of the summer with the a/c going... I figure she may go up a bit, but will survive the summer. After that I am getting a piece of crap to take to work. Put too much into the Camaro right now to even buy a piece of crap, so I have no choice but to drive her. It's a sin, I have a crappy ($120) fitted cover and no garage and she stays out in the thunderstorms and rain and every other act of nature, got no choice though. Thanks for all the advice guys.

-George