still overheating and being weird (Page 8/16)
cartercarbaficionado JUL 17, 08:17 AM

quote
Originally posted by Yellow-88:

That's serious car guy art. I can see it hanging on wall of the local muffler shop.


just got the ocelot exhaust. ordered stainless steel since its supposed to be alot more free flowing, resistant to backfires, etc and a quick and dirty test fit (no clamps or mounts since they were out of hardware when i ordered everything from the manifolds back) sounds just as mean and loud as the day I fell in love with this car. no pops or anything and a scream like a banshee up to 6700 rpm just like it was meant to. will post a video link when I get it fully together and take it to watch a race this weekend
cartercarbaficionado JUL 19, 07:36 AM
I think my headgaskets are bad again. no water in the oil but it's losing a gallon or so of water everytime it's running for like 20 minutes with no external leaks and a decent amount of what feels like steam for the first 5 or so minutes of running
I legit only put 5k on these new felpro headgaskets and bolts so uhh screw me I guess. I got a set of rol or roi gaskets that might be better.
update: overheated with the light on according to the engine sensors. pulled over vented the rad cap and took the thermostat out and it's not open. 5th one and it's not opening either and I just don't get it.
Yellow-88 JUL 19, 11:25 PM

quote
Originally posted by cartercarbaficionado:

I think my headgaskets are bad again. no water in the oil but it's losing a gallon or so of water everytime it's running for like 20 minutes with no external leaks and a decent amount of what feels like steam for the first 5 or so minutes of running
I legit only put 5k on these new felpro headgaskets and bolts so uhh screw me I guess. I got a set of rol or roi gaskets that might be better.
update: overheated with the light on according to the engine sensors. pulled over vented the rad cap and took the thermostat out and it's not open. 5th one and it's not opening either and I just don't get it.



So apparently the over heating is not fixed.

No water in the oil. The oil on the stick look clear and clean.
No leaks into an oil passage at head gasket. Verified.

If a head gasket leaked water vapor to the atmosphere, than a pressure test would show it.
Pressurized cool liquid might be visible where high pressure steam can disappear into the wind under the car.
There used to be a florescent dye that would find molecule sized holes. Lights up under ultra violet light. No clue about where to get it.

Or ... drain the system and smoke test it. Has anybody tried that?
Jason88Notchie JUL 20, 12:05 AM
Check your thermostat housing. How do you think that last thermostat got crushed?
cartercarbaficionado JUL 20, 01:13 AM

quote
Originally posted by Yellow-88:


So apparently the over heating is not fixed.

No water in the oil. The oil on the stick look clear and clean.
No leaks into an oil passage at head gasket. Verified.

If a head gasket leaked water vapor to the atmosphere, than a pressure test would show it.
Pressurized cool liquid might be visible where high pressure steam can disappear into the wind under the car.
There used to be a florescent dye that would find molecule sized holes. Lights up under ultra violet light. No clue about where to get it.

Or ... drain the system and smoke test it. Has anybody tried that?


oil is burnt looking Since its been 5k miles and needs to he changed. no leaks under the car but there is a weird residue near the frame rail by the air filter. as soon as the stat is out it stops overheating though.
cartercarbaficionado JUL 20, 01:14 AM

quote
Originally posted by Jason88Notchie:

Check your thermostat housing. How do you think that last thermostat got crushed?


already did. it only crushed the one and hasn't done it again
Yellow-88 JUL 20, 08:44 PM

quote
Originally posted by cartercarbaficionado:

oil is burnt looking Since its been 5k miles and needs to he changed. no leaks under the car but there is a weird residue near the frame rail by the air filter. as soon as the stat is out it stops overheating though.



"... weird residue ..." What's in the cooling system?
There is a coolant hose "near the frame rail by the air filter".

How did that T-Stat get crushed? Did the cap seal get damaged when that happened?
Is the one in there now "known good"? When was it's last pressure test?

If your loosing coolant, than there is a leak.
cartercarbaficionado JUL 20, 09:01 PM

quote
Originally posted by Yellow-88:


"... weird residue ..." What's in the cooling system?
There is a coolant hose "near the frame rail by the air filter".

How did that T-Stat get crushed? Did the cap seal get damaged when that happened?
Is the one in there now "known good"? When was it's last pressure test?

If your loosing coolant, than there is a leak.


straight water with some wster wetter to prevent corrosion is in the system. and has been for months but gets changed regularly to prevent any problems
idk man. I put it in and it overheated so I waited undid the thermostat cap and the little metal tang that you use to remove the Stat was crushed flat against the housing cap but didn't damage the cap.
no idea. it's new? old one was known good until it stopped opening completely unexplainably (tested in boiling water for 45 minutes and it didn't open) and I forgot to test the new one.
system just passed a pressure test to 20 psi for 5 hours so heck if I know.
Yellow-88 JUL 22, 12:53 PM

quote
Originally posted by cartercarbaficionado:

straight water with some wster wetter to prevent corrosion is in the system. and has been for months but gets changed regularly to prevent any problems
idk man. I put it in and it overheated so I waited undid the thermostat cap and the little metal tang that you use to remove the Stat was crushed flat against the housing cap but didn't damage the cap.
no idea. it's new? old one was known good until it stopped opening completely unexplainably (tested in boiling water for 45 minutes and it didn't open) and I forgot to test the new one.
system just passed a pressure test to 20 psi for 5 hours so heck if I know.



The T-Stat was crushed because it wasn't seated fully when you forced the cap on. Easy error.
Knowing the story of bad new parts, yaeh ... test a new T-Stat before installing it. This is the new world.

If you pressure tested from just the radiator cap than you did half a test. The radiator cap is part of the system.
You need to test from the T-Sat cap also. The radiator cap opens at roughly 15 PSI. If it opens at too low or too high a pressure, than you found a problem.

I'm sure there is a way to test just a cap by it self but I don't know how.
cartercarbaficionado JUL 23, 06:44 AM

quote
Originally posted by Yellow-88:


The T-Stat was crushed because it wasn't seated fully when you forced the cap on. Easy error.
Knowing the story of bad new parts, yaeh ... test a new T-Stat before installing it. This is the new world.

If you pressure tested from just the radiator cap than you did half a test. The radiator cap is part of the system.
You need to test from the T-Sat cap also. The radiator cap opens at roughly 15 PSI. If it opens at too low or too high a pressure, than you found a problem.

I'm sure there is a way to test just a cap by it self but I don't know how.


I hate this formula. it stopped overheating with 0 explanation with 0 extra parts. I litterally went like an idiot "I wonder if it maybe it only overheats at speed and low rpm" and stuck my foot to the floor for a 45 minute drive and it didn't overheat once. did a massive 5 foot flame out the pipes so that's...concerning.. but drove it to work again since I had a slow day ahead and it was fine.
I did do the "proper bleed procedure" of opening the Heater and letting it circulate through the system before popping the thermostat and cap out to see how much the pump was pushing at 1100 rpm idle which wasn't alot? like barely an inch above the housing so maybe my autozone water pump just completely sucks and is spinning on its press fit shaft when there's a temp differential which is generally when it overheats. like only 60°f will cause this behavior but 90 won't anymore. I mean my s10 did a similar thing so it's entirely possible