my car is a 92 sc400 i have been driving it for 8 months now and it gives no problems exept it keeps loosing coolant but not fast atleast once a month i have fill it with coolant or it starts to over heat i suspected a headgasket wich it probably is there is no loss in perfomance the car is a beast i barely tap the gas and i spin tires ive done numerous top speed runs on the highway and it still performs great after....so i just need your oppinon to what its is so here are some photos with what looks like coolant and the water inlet housing has this weird brown stiff on top..
thanks

 

Have you pressure tested the system yet.

 

Is there a foamy film in your oil cap? I ask be cause someone here years ago had the same problem, same symptoms. Thinking it wasn't a Gasket...later finding out it was.

Please be more descriptive with your thread titles. Need help is kinda general.

 

no i was going to buy a kit from auto-zone just wanted to make sure before i spend 70 bucks on the kit

 

ya my bad i tried to change the title once i posted but didn't know how
and no foamy film but i am 99% sure its head gasket just gonna swap the motor for a 1jz...
thanks for the advice..

 

Look around more, I got mine for 15-20 at auto discount, and it reads properly

 

from the pics you've shown and your description of performance, it doesn't look or sound like a bad head gasket. In fact you might have already found the leak source. That hose clamp in the backround looks like its crushing the hose and could be the cause of your leak. If it's not that it has to be coming from somewhere up top on the engine. Don't waste your time on the pressure tester yet!

 

Yep don't waste your time on a pressure tester, just waste your time on a leak that it will make obvious.

 

thanks alot for the good advice....most of the hoses are old so ill inspect them and change if Necessary ... maybe go steel braided..... if push comes to shove i called my mechanic he told he would pressure test it for free...

 

Equipment rentals are free at Autozone and Oreilly. You will have to leave a deposit to ensure the return of equipment.

Obviously, if coolant is low it will over heat no matter what.

Do a dye check with black light to make sure it's not leaking anywhere you don't suspect.

But, if you going to swap a 1jz then it doesn't matter anymore.

 

i am only gonna go 1jz if its gasket but i am getting it tested in the morning and i will make my decision then...
thanks again everyone

 

_I just did a 1j and love it even with a 72mm turbo lag is over rated. At 5400 rpms it is a whole different world. The only thing limiting me is 440cc injectors. If you do the 1j swap you won't regret it. Just make sure to use the 341 tt transmission with the 340 valve body. The 341 tt trans will handle about 450whp if kept cool.

 

I wish I could fix mine that way but I am going to have to find the leak! I thought it was a lot of things and replaced them. The dye test, however, shows pooling by the driver's side engin mount. It looked like the lower coolant temperature sensor (single wire) was leaking some but not enough to explain the drip down the side of the engine and pooling by the driver's side motor mount. I replaced it anyway. I am searching the Forums for "coolant loss" and would love to hear anyone's suggestions.

It may or may not be related but the check engine light is coming on. It takes about 10 miles of city and 40 miles of highway driving to trip it. Actually, 40 miles is the limit of what I have driven before getting off the highway so it might go longer.