Overheating or bad gauge?

[Excaliber]

...in two to four weeks SPF could loose their Shelby endorsment, or so "rumor has it".

Acutally the "rumor" is more like 2 to 4 months, you heard it here first.

I was just talking to a guy at SAAC-35 who had a crack in his expansion tank on an FE. Of course they crack and leak, they do that a LOT. THAT is why I'm going to run Evans waterless coolant and a near zero pressure system, save my expansion tank, hoses, fittings, head gaskets, intake gaskets, spiking temp gauges and all the other evils associated with water and pressure. That's dinosaur technology, give it up, water systems suck.

[Mark IV]

Originally Posted by Excaliber

...in two to four weeks SPF could loose their Shelby endorsment, or so "rumor has it".

Acutally the "rumor" is more like 2 to 4 months, you heard it here first.

Aw, common Ernie. This crap is beneath you. I hear rumors that say California will fall into the Pacific in 3-4 weeks!

I could tell you the real story, but then I would have to kill you............

[Got the Bug]

Originally Posted by Excaliber

...in two to four weeks SPF could loose their Shelby endorsment, or so "rumor has it".

Acutally the "rumor" is more like 2 to 4 months, you heard it here first.

I was just talking to a guy at SAAC-35 who had a crack in his expansion tank on an FE. Of course they crack and leak, they do that a LOT. THAT is why I'm going to run Evans waterless coolant and a near zero pressure system, save my expansion tank, hoses, fittings, head gaskets, intake gaskets, spiking temp gauges and all the other evils associated with water and pressure. That's dinosaur technology, give it up, water systems suck.

What does the licensing deal between Shelby and SPF have to do with a bad gauge?

[jhv48]

Replace the thermostat!

[Voyager]

Now have 800 miles on Superformance/KC 408 engine. I’m still experiencing sporadic short-term overheating. The gauge temporarily spikes under optimal conditions (like steady 45 mph cruise), and then comes right back down to normal within a couple minutes.

Will go get a new thermostat and surge/expansion tank cap.

What temp thermostat…180?

What pressure expansion tank cap…13 psi?

Bob

[Randy M.]

I had a similar but not exactly the same problem. Turned out to be a intermittantly failing radiator cap. It would randomly loose and then retain pressure. Consider replacing the cap. They are cheap enough.

[Voyager]

Ok. I think I may have found the reason for my wildly fluctuating water temps on my new KCR 408 crate motor. Pls see photo below. Appears that I do not have a water bypass hose. Is that correct and could this be the reason I get greatly fluctuating water temps? Also picked up a Mr. Gasket Balanced Thermostat (180). Will try to put it in next weekend.

Bob