The car is a thought to be 1989-1990, Its a 760 not verified engine model,Turbo ( Looks like a garret on there ) but i believe its the regina system as when i popped the hood the coil was mounted in the cetner of the firewall/top.

The previous owner which i somewhat know, overheated the engine on superbowl sunday, There is deff water in the oil no questions there, I am giveing him $200 for the car, it is in decent shape, to tears in the leather though it's woren, the head lineer is in its first stages of dieing, it has 140K on the OD, the paint is starting to go on the top of the car, there is a crack in the pass headlight and the turn signal cover is gone, other then that i couldnt find anything else wrong with it.

Other then replacing the Head which is expected on an overheat, what should i be looking, changing and doing to this guy while i am getting it ready for life again? Im sure i could think of things and write them, but i want your input as this will be the first time i have ever taken a overheated car and attempted a restore with it.

Good advice from "Aye Roll". I did exactly that on my 1986 745 and haven't regretted it. Much easier than a rebuild.

No turbos got the Rexx/Regina system. That is a Bosch coil that you're looking at. The Rexx/Regina setup has the power stage integrated with the coil, and there should be a big heat sink on top of it.

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alex

'89 765T, 173,0xx mi

Your best external indicator of just how hot it got will be to look at the block where it meets the cylinder head right underneath the thermostat housing. The block is painted red and if it got hot enough to change the color of the paint or in the extreme instance, cooked it right off, then you should probably take a pass on it or at very least expect serious piston damage when you take the head off. It gets hottest in that corner of the block so make sure you heavily scrutinize that front piston and bore. Check for scoring or galding of the aluminum piston on to the steel bore. When they get hot enough it will actually melt the piston away and you can see the exposed rings. Not to bum you out but any car that does not run (unless it is something rare or special) is worth no more than fifty bucks, especially when you know that the cause is a blown motor.

I intend that if i am going to be pulling to head to also get a rebuilt kit while i am at it and replace the piston's and connecting rod's, id rather have a nice new/rebuilt engine than a pieced together one, it will be parked for awhile as a project, i intend to restore it the best i can engine wise, once done ill drive it and park my 89 745 and rebuild that one as it is already at 266k id like to get in there before 300k and get the connecting rod's replace as such ill do the whole thing.

When i was looking at the car i got more of the fealing of a blowen head more or less, so if he did overheat it i think the head gasket was the cause of the overheat, if the pistons shot and the block survived which is very possible being it cast iron replacing the piston's isnt a big deal, my time is only worth what what i am doing with it at the time.

So far ive got on the list

Head / Head Gasket
Piston's
Connection Rod's
Possible turbo rebuild, need to inspect turbo.

You won't need any rods or bearings. The thing to do is to pull the head, and inspect a few things:
1) the timing cover back half will be melted right in the middle at the block/head split, if the engine got hot enough to damage things. If it's melted, the engine could be worse off and might need a whole lower end. Oddly enough the head is likely to survive. This is the indicator for how serious the overheat was. If the guy drove it until it stopped running, then it's probably a bad one.

2) The #1 cylinder bore may be scored, the piston may be melted, and the rings may be damaged. In this case the block is probably out-of-round on bore #1. The only fix is to have the block "sleeved" and pistons replaced, matched to the new bore, or just get another long block (cheaper, and readily available)
If theres any raised metal on the top rim of the piston, or the head is scored, or the cylinder has vertical scratches, it needs more work and at least a lower-end from a Turbo is required. Honestly, these engines are cheap, $400 retail at the junkyards. You can't rebuild one for that price. That'll take care of what this car needs and a used engine such as this will be as tight as anything you'll pay a machine shop for.

Good luck, it'll be a nice car when it's done. Save the money you'd spend on the head gasket and machine work.
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Rob Bareiss, New London CT ::: '87 244DL/M47- 229K, 88 744GLE- 218K, 82 245T-181K Also responsible for the care and feeding of: 88 745GLE, 231K, 87 244DL, 239K, 88 245DL, 246K

Thanks for the good info, this is what i had in mind, if the blocks shot ill pull from a jump yard and just throw it in there, visiable damage on the outside is not existant except for oil throwen out of the oil cap and the smell, and yes i know there normally isnt any outside damage, when i took a look at the turbo i did notice the plastic hoses were not melted in any way nor were any other item's, T Belt cover looked perfect with no damages up and down, i should have the car at my house in a couple day's and then ill have a better idea of what i got, when i get it ill make a new post with the new info.

Thans Again