North American Turbocoupe Organization

oil in radiator
djmikemck Offline
Junior Member
I noticed after letting my car sit that I thought I had a big oil leak. I checked and found that a mixture of oil and antifreeze was blown out of the overflow tank of the radiator. A nieghbor said that it could be an intake gasket. What do you guys think? He said that I could get a kit the included a new head gasket. If that is what I need can anyone guess on a repair price. Thanks in advance.


Spooler87 Offline
Posting Freak
You can pick up a full gasket set for about 35.00 at many local parts stores, but some don't come with upper intake gaskets or new head bolts.

87 Tubocoupe, Light Regatta Blue, All Options incl. Leather; 2.5" exaust, Dynamax super turbo mufflers w/3"chrome tips, MSD 6AL, Blaster2 Coil and wires, Homemade adjustable boost valve.
"The stage is set, the orchestra engaged.... it's now time to see if you can dance."
All hail Project "Marauder" !

Pete D Offline
The good new is you can get what they call an upper end gasket kit that will have both the intake and the head gasket and a couple others. The bad news is it isn't the intake gasket that's causing the problem, it's the head gasket.

NATO Member. it's not a vice, it's an obsession
Letting the cat out of the bag is a whole lot easier than putting it back in.
88 TC X 2, 86 SVO, mods list at
Pete Dunham


Pete D Offline
There is an article on head gasket replacement in the Technical Articles.
Pete Dunham


Kev Offline
Posting Freak
There is only air in the intake track. Take Pete's advice and read up on that head gasket article.
1988 TC 5spd

1owner88TC Offline
You should have water in the oil pan/dipstick too. If you do, I'd go with the blown head gasket theory. Are you sure it's oil? If you have an A/T or a radiator with an internal transmission cooler, it could be trans fluid. Just another theory, I've never experienced it.
fun, fun, fun - Justin
3" DP & Cat, Magnaflos, K&N, Magnecor Race wires, Steeda Tri-Ax, SPEC Stage 2 clutch, 3-core radiator.

1987tc Offline
Senior Member
I had the same thing happen on my red 87tc. Turned out to be a cracked block in cyl number 1. Looked like a milkshake. Funny thing was the car still ran good. Most of the time it even ran cool. Even with out the fans hooked up.
Whith the fans hooked up it always ran cool. I ran it for over a year like that! Not recomended of course but with a craked block I did not have much to loose.
I did not have water in the oil for a long time. Just oil in the radiator. It was a 5 speed car so it was for sure engine oil.
First time I have ever had a 2.3 BLOCK crack.
Sold my Turbocoupe. It went to a good home.

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