Blown Head Gasket Symptoms!

[IHateHacks]

It could be a number of things.

I'd first make sure the cam timing is correctly set, then I'd make sure ignition timing is correctly set. Because you can't set ignition timing if the cam timing is off.

I can post diagrams of the vacuum lines if you need them. But you should start your own thread so we don't clutter up this sticky with your problem.

[mkIIIdraper]

fixed ignition timing car runs now woo

[Jermalicious]

i just bought my first supra, its an 88 turbo 5 speed, the oil is a milky color, and there is a white smoke coming out of the exhaust, and when driving it there was a little poof which also caused smoke from under the hood, i have no idea what to do and reading everything hasnt really helped.

[toyota4life198031]

ok so i was told my head gasket might be on the way out the only thing is it was just done 50 000 kms ago right before i bought it by the toyota dealership
the problem im having is im losing coolant but i dont know from where because i dont have a puddle under my car i had a hose that was leaking but that was tightend up and my water pumb might be leaking but not enough to keep bringing my resivor light on ...i work in a shop so i have had the mechanic look at it but its hard to say what it is anyone have any ideas?
and first time posting so i have no idea if i just replied to a msg by accident lol

[Starlight1988]

I'm having a similar problem with my car. but i found my problem and it was a leak and just need to replace a busted tube for the radiator

[Oropher]

I just got done replacing my BHG. My temperature guage liked to spike a lot unless I kept the engine going at above 3000 RPM. We had done everything else, new water pump, new radiator, new fan configuration...nope. Dug into it and found the BHG and erosion on the head. Had to get the head planed, 10/1000 (which is not reccomended by Toyota) and put the thing back together. So far it has stopped the overheating and has stopped blowing the coolant out of the system, but now I have an injector (or something) leaking fuel and can't find where to plug the knock sensor back in so, hopefully I'll get that soon.

[88supra_dude]

Originally Posted by Dejvid1785

I have a 88 NA supra, i'm trying to figure out if my thermostat is out or is my head gasket blown? What usually happens or what symptoms there are when your head gasket is blown?

my supra did tat on me too. i thought it was the thermostat, switched tat, but still, it kept saying it over heats. then, after like 3 month, it wouldnt start anymore. took it to the shop and they diagnosed it wit a BHG and need all my cylinders replaced.

[Vinylspinr]

I know I know about the head gasket symptoms. Changed out the old blown HG with a new HKS metal one and ARP head studs, radiator, cap, water pump, and thermostat. After about an hour of driving, she'll spike up to about 3/4 on the gauge...usually drop shortly after back to normal. Rarely does it stay at 3/4 for more than 5-10 seconds. I do have boil over in the resevoir. I've tested the coolant for exhaust so many times now and still no evidence. I will be getting a slightly higher psi radiator cap and ANOTHER new thermostat but this has been driving me nuts for about 2 years now. Damn near willing to sell it if this doesn't get resolved and I REALLY don't want to do that...have had it for 10 years now.