Introduction of Mike McGuire

Welcome to the site from the Motor City! Let's see what you got.
 
still figurin out the posting techniques and stuff, thanks for bearing with me.
Had many a Mopar over the years, am partial to 68 Chryslers currently, specifically Newports, you know, the economy model of 68 Chryslers.
Below is Chrystene, with 6-pack and in primer.

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Nice! How long has the six pack been on it?
 
Nice! How long has the six pack been on it?
about a year. Bought her with a rotted out valley pan, and a proportional vacuum leak. Since I had a 440 intake with carbs in the basement and a spare 383 6-pack intake also previously purchased some 10 or so years ago, I thought, why not.?..

She still has the 2V stuff, all of it, so I thought I'd redo the mill this winter, and drive it around as best I can in the mean time.
plagued by overheating issues, as is the other driver, 383 - 2V, thought I'd tune into this site and see if I could figure out root cause for one or the other..
 
Is the cooling system clean? Correct thermostat? Shroud on the radiator? Lower radiator hose have a spring in it to keep it from collapsing? Hood to cowl seal in tact?
 
Any suspicion's as to the cause of over heating??
 
Is the cooling system clean? Correct thermostat? Shroud on the radiator? Lower radiator hose have a spring in it to keep it from collapsing? Hood to cowl seal in tact?
Cooling system is relatively clean, as it overheats often, and coolant is replaced. I would say coolant is not crud-filled.
I have an exhaust leak between manifold and flange on passenger (starboard) side. It is a leak, but not what I would describe as major.
The radiator is a 2v radiator, I did not upgrade it yet.
I'm suspect that increasing HP from increase carburation may add 3X to heat generated.
No shrowd.
I ran a FLIR on the radiator and cores are open, exhaust temp is >285C, I can also see the thermostat open once anyway, as the heat just keeps on going.

Here is a brief narrative...
Once started I can go for about a 10 minute cruise before it starts to overheat. (this could be a blessing in disguise as I am virtually forced to stop at a Chinese restaurant till she cools down, making the best out of the situation ;0).)
This is just at cruise speeds, not an insane race around town, 25-40MPH.
Just running in slow/stopped traffic can lead to a boil-over incident.
So, I don't think the lower hose is being sphinckterd (spelling?) by the force of the pump, since it could be at idle.
New plugs, new wires, lead additive, high test gas.
no water in oil.
no water in exhaust.
I wonder if off timing could screw it up that much...??
 
What do you have the timing set at? You could have a crusty mineral build up inside the radiator which would decrease the flow rate but that would also tend to pinch off the lower hose. When you get moving at higher cruising speeds does it cool it down some?
 
Stuck thermostat. Have you tried running without one or is it new. Or test the one you have.
 
With the FLIR I can see the thermostat opening.
and also that the radiator is not clogged.
Regarding timing..., don't know yet, will check later.
Maybe crappy water pump?
to me, this seems major league problem, not something slight...

On my spare newport, the 2V, (named 'Rupert') it didn't run soo hot last year, (it still ran hot) but it does have a different story, and it is significant.
It ran rather hot last year, but not completely nuts. I checked the coolant last fall, and it was green, and clear, usually enough, but not so in this case.
It was stored under a pole barn, and popped the freeze plugs on both sides of the engine block and 1 out of the driver's side (port side) head.
I drove a new one into the head this spring and 2 rubber/washers/hybrids into the block. After this, Rupert got hot allot.
Swapped the plugs, oil, and wires, added slick 50, still running hotter. I can see the thermostat open up with the FLIR, and associated aftermarket temp sensor tied to radiator corresponds with FLIR. When Rupert gets hot, the radiator temp will skyrocket, 220, 230, 240, pull over and shut down.
No oil in water, or water in oil, exhaust is even, no exhaust leaks, will happen at slow speeds and slow engine speeds...
 
Maybe they both need to be burped...
 
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