Hi. I am having some issues with my Toyota Supra and I want to get your opinion on this.
-1994 Toyota Supra Auto jdm tt mostly stock
-full decat, stock twins, k&n air filter, no major mods
I had an overheating issue, I was new to Supras and overheated the car couple of times. I had an aftermarket temperature gauge who who showed more than 210 F but the original one never got past middle. I took the car to a mechanic who told me that the radiator cap was not holding pressure at all. I asked him to check the water pump and timing belt, he said all was fine. After this, I drove the car for a couple of months (it worked fine) and after it sat all winter. The car worked fine this year but the coolant started to get browny and couple of km after it started to ovearheat again. Coolant was dissapearing, there was a strange smell from the exhaust and the hoses didnt had pressure. As soon it overheated again I didn't drove it. Overheating occured especially when the car was sitting in traffic and had a slightly improvement at an open road. So I bought a blown headgasket tester (that thing with the blue liquid) and it seemed that I had exhaust gases on my coolant. So i took the repair manual and started to dismantle everything. BIG SURPRISE....the camshaft pulleys where not at the sign, they where with a teeth to the left and the belt was loose ::(
I didnt got to the tensioner because I have to remove the crankshaft pulley first.
Still, the car worked fine, it started fine and it only had a strange rattle when idling.
***The car was never raced, abused and i never did burnouts or things like that.
So why did this happen? because of the wrong timing? Or the gasket was damaged from the previous overheating?
Also,the headgasket shouldn't have any signs of damage? visibile one? I couldn't see one. Should I worry that gases get in water from another spot?
I took the head to a specialised repair shop but they can't test it for cracks, should i test it somewhere else? Is it possible to have a damaged head?
And if you have any other suggestions or tips about the headgasket replacement I am happy to read them ;)
here are some pictures :
[video]https://youtu.be/D5aC6bHhQwY[/video]