and no it isnt mine. Mine is still being rebuilt LOL.
My friend bought a 1989 Supra Targa Turbo 5-speed yesterday. Paid 3K cash. Now he didnt know much about Supras except that he loves the MKIII's. I even had to show him about TEMS lol. He said he was gonna take it easy and make it last till he could get a 2jz. I then remembered about the BHD problem, so I warned him to take it extra easy.
Well tonight I was at the lot that everyone hangs out at and my friend Logan pulls up. Julio (the supra owner) gets out and he looks HORRIBLE. I hear him telling someone he wanted to go check out the suspension and he was taking it easy. Then I hear 'Bull Canyon' The same, rediculously twisty road I launched my Tercel through a fence on. I feared he wrapped it around a pole or put it into a canyon call or something.
Well then I ask him what happened. Turns out he was still taking it easy, just seeing how it handled. Well then after the got into town the temp guage rocketed up. He went to pull over and kill the engine when it just up and died. He let it sit and then started it. It had a slight ping to it. He managed to drive it to a safer spot but the knocking was really loud. He checked a rad. hose and I guess it was leaking a bit. He touched it and it blew off.
Now he's all depressed because even if its a BHG, he's in debt (only 1k, but oh well) and he works at Jiffy Lube. I told him i'd ask around to see what could be wrong.
My friend Andrew has an 89 Turbo Targa too and the same thing happened with him. He blew the head gasket and then not 30 seconds later he spun a bearing. Could this be the same with this car? Either way I told him he's looking at a not-so-easy fix.
Well, he probably spun a bearing because he was on a twisty windings turn and his oil was either low or way past due for a change. These cars NEED oil and once they're starved of it for even a second, they just spin bearings. As far as the radiator hose expanding and exploding, my car did that once. I changed the thermostat and hose and didn't have a problem after that.
Once you BHG, the coolant mixes with the oil and gives that milkshake look. That's also another reason why you spun the bearings.
Take the head off, take it to a machine shop, get a cometic hg, arp's, check the surface of the block, and get her back together. There's lots of info on how to do this stuff yourself, or find a reputable shop to do it. Make sure they know their stuff when it comes to these cars.
Yeah now it kinda scares me about the oil part, but i'm always gonna check mine and give it tune-ups.
Now with mine...my friend who owned my Supra before me had the heads decked and checked... could it be the block was a little bit warped too? Thats why I yanked the rest out and am taking it to a machine shop.
What kind of head gasket did you use? If it was a metal gasket like HKS, you REALLY need to make sure it's a "like glass" surface so it will properly seal. I recommend using a Cometic gasket. It's a multi layer gasket that is more forgiving to a less than perfect surface. Make sure to use ARP head studs too
Yup I told him about the MHG and ARP studs. I still have to get my engine to the shop and when it returns I already have the ARP studs. I still need to get ahold of either the Cometic or HKS gasket.
Another thing about his Supra... he said yesterday the only time he took it high was 1st gear and he wanted to take it to redline. The redline starts at 6500rpm... but he said his bounced off the limiter at around 5600-5700. He mentioned his speedo doesnt work and neither does the odometer. It reads 140K miles, but still factory headgasket. But what would cause the limiter to be low?
Our ECU's keep track of pressure inside the intake mani. When it see's levels above normal (every car is different) it temporarily shuts off the injectors. So let's say he overboosted or something, that's most likely what happened. Sometimes it only takes 12lbs to hit fuel cut.
hmmm... I'd have to look at his car some more. I was looking at night but I couldnt tell if the previous owners (who most likely didnt treat it right) had done anything in the engine bay. I'll try to get pics too.
To show much little experience I have with turbos...what would cause over boosting?
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Blown motor? =(
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