Coolant Is Disappearing in HOTLNC

I wouldn't give up on the air in system yet! Refill it from the crossover one MORE time.... definitely NOT the overflow bottle.....never from the overflow bottle.
 
Tiffs car did this a few times and it was a swollen hose that was allowing the coolant level to drop as the hose swelled.

There is a hose that goes from the motor to the Tstat housing, that is a special hose..like boat exhaust hose..
If someone put regular radiator hose there, it could be swelling up and causing the low coolant.

I'd say top off the crossover again, as mentioned above as well.

dont give up..and no I dont think your in denial, not ready to suggest a headgasket...
 
If you don't see any whitish gunky sh......er, junk on the oil dipstick, I wouldn't worry about a blown H.G.
 
Oil is clean, Thanks.

That hose between the T and the engine is a horizontal hose that can't be longer than 4 inches. It would have to swell up impressively to suck up the entire coolant reservoir.
 
budpytko said:
If you don't see any whitish gunky sh......er, junk on the oil dipstick, I wouldn't worry about a blown H.G.
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that would only be the case if it were swapping oil and coolant.
you can have a blown headgasket and NEVER get coolant in your oil or vice versa.. it depends on the leak itself and the location of the leak

Sometimes the leak just passes combustion gasses back and forth between two cylinders, that will never show up in coolant or oil.

Or like with tiff car FINALLY did pop the headgasket, it wasn't swapping fluids.
It was pumping combustion gases into the cooling system, thus blowing out the overflow cap. The compression pressure was enough to push combustion gasses into the cooling system, but the cooling system didn't have enough pressure to push coolant into the cylinder.

hope that made sense and didn't further confuse the issue.

bill, you can have your coolant tested for the presence of combustion gases, it's a lithmus type test
 
HOTLNC said:
Oil is clean, Thanks.

That hose between the T and the engine is a horizontal hose that can't be longer than 4 inches. It would have to swell up impressively to suck up the entire coolant reservoir.
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Tiffs hose on the left side of the motor, from that crossover to the radiator
Swelled up to the size of a basketball....it was quite impressively swelled.

Scared the hell out of us when we opened the hood, I couldn't drop the hood quick enough, I thought it was gonna burst and shower us with coolant.

If someone didn't put the right kind of hose back in that spot your talking about.. it COULD be the culprit.

if you feel that hose.. it should be hard, very hard..like boat exhaust.
If it's squishly like a regular hose... it aint the right hose.. replace it
They sell it for like 6.00 a foot or something insane like that.
 
baby powder and a pressure gauge dude!! dont forget those heater-core hoses behind the motor (grr) they are a PITA to replace unless you have a lift and skinny arms, i had my oldest daughter loosen the screws..lol
im also losing coolant even after i replaced those hoses, and i know that they were cracked at the clamps, so im interested to see what you find, i may even do that litmus test on my coolant, can Lincoln do that?
 
Sapperfire said:
i may even do that litmus test on my coolant, can Lincoln do that?
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probably charge you ALOT to stick a peice of paper in your overflow tank

you can buy the strips online i found some a year or so ago..
it did take some searching though..
 
HOTLNC said:
All new hoses, except for lower T to motor and heater hoses. New radiator, thermostat and water pump. The motor runs great. My RX7 ran like crap when there was a water to compression chamber o-ring break. And it bubbled/blew coolant out the radiator constantly.

Am I in denial?
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RX7 is a rotary engine...it's problems are very different than everyone else's.
 
Do you have a coolant pressure tester?

They are great. With the motor cold and turned off you screw it onto the coolant reservoir cap, and pump it up to whatever pressure you want and you can often locate your leak.

Doug
 
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