Engine Overheat Damage - Now What?

[94SRUNNER]

When looking at a thermostat, one end has a jiggle valve. The system can't properly deal with any air if that valve isn't installed correctly (pointed up, or towards the hood).

In this picture, it's on the right:
View attachment 3388479

and said jiggle valve needs to be oriented correctly. Situated approximately, if not exactly at the 12 o'clock position to that it bleeds air out of the system correctly.

 

[Stumpy14]

and said jiggle valve needs to be oriented correctly. Situated approximately, if not exactly at the 12 o'clock position to that it bleeds air out of the system correctly.

Having just done the install last week there is almost no reason to not get to nearly exactly 12 o’clock. The book allows for 30 degrees either way but it was so easy to set it straight up.

 

[BonS]

Thanks to all for the great info. I'll drive it for another week and watch the catch bottle. Hopefully I'll follow up with some good news. Meanwhile I'll keep trying to find a loaner leak down tester, radiator pressure tester, and compression tester. I did the initial fill of flush and fill with fresh coolant while the LX was on ramps so there was a pretty good upward tilt to it. I didn't change the thermostat since the last timing belt and I used OEM/Denso everything. I've had this beast since '03 and am not ready to let it go.

 

[2001LC]

That all sounds like good advice 2001LC. Some a bit too late for me. K-Seal says "The particles in our K-Seal products are very precisely designed to be large enough to repair holes up to 0.635mm in size but deliberately small enough to never block any passageways or tubes within the cooling system, including those inside the heater core and radiator." So I'm hoping they're not wrong or lying. I ran the heat today and it was incredibly hot. I'm don't know what a thermostat jig valve is. Please explain. Thanks.

 

[Wadepat2]

Any update?