No More 6.0 Liter Degas Coolant Boilovers
VIDEO: No More 6.0 Liter Degas Coolant Boilovers After 150 miles of test driving, I was unable to make the engine blow coolant out the degas bottle. I never turned on the main engine fan using the b...
Forum Discussion
All the cooling additions will continue to contribute to the engines cooling abilities. Each setup does have a purpose. The heater circuit goes through the heater core unless the AC is on MAX, then the vacuum valve will close the line off. The split to the coolant filter, would have gone through the heater core if not redirected so since it would have been cooled by the heater core, I figure it's natural and proper this half of the circuit should also be run through a cooler. I would imagine the heater core was thoughtfully engineered into the cooling system and having the other half about equally cooled is what should happen. As for the two coolers on top of the engine, they do functionally cool down coolant from the top of the engine. Originally it was where the EGR cooler deposited superheated water and siiteam to the degas bottle. These two coolers do a good job cooling that hot coolant and condensing the steam back ito liquid. I just don't have the urge to spend $ on a new truck. I now have both the 250 and 550 working just how I want them. Right now, I dont think Ill need to service either the trucks for a long while. Both are a pleasure to drive in thier own way. The 250 suspension is fully upgraded with a couple inches lift. It's ready for some rough roads. The 550 is highly capable and will be our home away from home with the little old but cozy S&S. With 800 solar, 400 lifepo, 320 amps alternator powering a 50 amp dc charger, we have all the power a nd storage we need. Starlink is about the only wishlist item left. 2 ebikes. Better stop. Alaska is probably out this year but exploring the North Cascades all the way to Montana may still happen.
I love that you got your rigs set up how you want. That is what it’s about!
And I understand that all the ancillary stuff helps with cooling, by default. But it is not and should not be by design.
I’ve run demo derby cars just off the heater core and they make it 20-30 min lol.
If a super duper radiator, super water pump and fan don’t get it, that’s an issue.
And the pressure variation issue at low ish temps is an issue.
You haven’t had a “temperature “ issue per se. Any normal vehicle will get into the 220s-230 before blowing off.
All I’m saying is be careful. I don’t believe the problem is solved once you really work the cooling system.
it’ll be 100 deg in Vantage next week.
I think it’s worth your time to toodle out there next Wed, giver hell with the camper on, up the east side. And if it’s good, turn around and flat pedal it back up the hill westbound at 80mph into the wind.
Thats the best local torture test route.
That will remove a whole bunch of speculation and worry before any big road trips if it passes that.
Just food for thought
One thing I did do that may have made a difference is I back flowed the heater core. It would not be the first time I've seen overheating caused by a blocked heater core. Still, the heater circuit divides, half to heater core, half to the filter and front radiator. It's possible the heater core could have been a big contributor to overheating if blocked but there was a seco d path. Currently there is no filter because their cleanable filter is blocked and wont clean. So right now, no filter = free flowing. The oil cooler seems to hang about 10 degrees hotter than coolant so no not a problem. A blocked heater core caused a boilover and necessitated new head gaskets in the F250. Thats when I installed the MMR rear of head knockout coolant adaptors with half in hose creating a second path to the water pump and increased head cooling. Planning to do the same trick to the 6 liter if I ever so heads and studs. No rush now.
My friend and brother had to install Desert Cooler or similar Radiators in their 67 GTOs. Both 455 punched to 472.
