Club Cobra - Overheating at speed

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Overheating at speed - Water pump Pulley

Discussion Tools

07-04-2016 06:12 AM - permalink

Xack

Joey,. It does look like the answer lies in the radiator flow. Take a look at the bottom rad hose to see if it is collapsing when you run the engine. You should see big pressure difference between in and out. Take it out and reverse flush it to see if there is debris.

07-04-2016 08:27 AM - permalink

joey4420

Bottom hose I have changed 2 times, once with a hard flex line that I thought was limiting flow, but obviously was not, and now a rubber flex with the spring. So bottom hose not collapsing. I plan to just get a new radiator custom made, cheaper and easier than other options I have found. And while it is down I plan to do other changes as well, like adding a electric fuel shut off switch and fixing the horn buttons so it works. Maybe even work on raising my roll bar so it at least looks like it will prevent death in a roll over.

07-06-2016 02:55 PM - permalink

BOBOCobra

Joey, I have been out and about and just checked in and saw the thread update. I had the same thing initially and it was radiator blockage. I am pretty sure that a bars leak or alumaleak was poured in the radiator prior to me receiving the kit and it was full of crap. Same thing, 210 at top, 175 at bottom. I boiled and flushed it several times and got a small coffee can of brown crap with silver specks out of it and it made all the difference. The tubes used are pretty small diameter. A new radiator was on the list if that did not work but a custom rad is a bit of a challenge to get it to fit right. Boiling/flushing and all the other work you have done fixed the issue for me. You have addressed air flow, it has to be water flow. Assuming jackets are clean, pump is correct, hoses are correct, t-stat is correct, it is flow through the rad.

07-06-2016 02:59 PM - permalink

BOBOCobra

Also, just for kicks, the roll bar is really for looks. If we were to put this car on its hood the least of our concern is the roll bar....It looks better to me raised but I just pray it will never touch the ground.

07-07-2016 05:04 AM - permalink

Xack

Those hoop roll bars on SC's, drivers side only, or both, are only for looks too. Pretty much an afterthought. I cringe thinking, seeing the WCC rollbar fold over when the car goes on its hood!

08-21-2016 04:52 PM - permalink

joey4420

I will add my new radiator post here since the other thread got lost during the forum outage.

Well I have had an overheating issue for a while and decided that it was 99% the Radiator, so I ordered a custom triple pass aluminum radiator. Wasn't cheap, but it looks good. Just got it installed and will test drive it tomorrow to know for sure.

Best investment in my WCC yet.

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