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Old Sep 6, 2021 | 10:41 PM
  #25 (permalink)  
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nemiro
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Joined: Mar 2020
Posts: 975
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From: NW FL
Default Re: M113K Into a Crossfire - Journal

Did quite a bit of work today, but the work didn't warrant a lot of pics. Ok, I just didn't get any.

Reassembled the cooling module, and got it bolted in. Fabricated upper mounts, securing it in. Set about modifying the intercooler pump mounts and plumbing for them, and also mounted the split cooling reservoir on a new bracket behind the driver's side headlamp. Built a temporary upper radiator hose.

Next, fabricated the oil cooler lines, and secured them in place. Bolted the horns back down, adjusted for clearance on the oil cooler. Bent the power steering cooler line for similar clearance.

The upper radiator hose is not going to work long term, it hits the fan assembly and pinches. I will acquire an aluminum pipe bend, and modify the thermostat housing, welding this on, which should put the pipe right in front of the power steering pump reservoir. Making this a hard pipe will eliminate the chance that the hose will rub on the fan.

So that leads to the misadventure of the day. The fan. Went to go wire up the fan, and the control wire colors did not line up with the Crossfire. Did some research and determined that the black/white wire on the fan is +12v ignition, and the green/blue wire is the PWM control. Disconnecting the PWM wire will force the fan to run 100%. Wired this all up, and resulted in a non running fan.

After much testing and frustration, I grabbed the spare fan I just got at the yard this past weekend, and plugged it in, dangling underneath the car. It fired right up and ran properly. The one in the car is apparently dead.

This now leads to the next project. The upper radiator core support is welded in place, and blocks access and maintenance of the cooling module from the top. Changing the fan would require disconnecting everything, draining everything, dropping the cooling module out of the bottom of the car, and starting over. I do not want to do this.

I cut a complete upper core support out of a junkyard vehicle. The plan is to cut the center section out of the Crossfire's core support, and then overlay this new one over the top, and have it bolt down one each side, right near the headlamp buckets. I didn't plan to do this project right away, but the current situation makes it somewhat of a necessity.

Tomorrow is another day....


 
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