924Board.org

[joecitizennn]

I just bought a red 87 924s with 112K. It has option code 456, with a thicker front antisway, a rear antisway, and koni shocks. Other than that it is pretty much stock. It hit something because the valance is smashed and the front passengers frame rail is slightly cocked down. The radiator must have been destroyed because they have a tiny radiator from some other car hung in its place with zip ties. It has the following compression numbers cyl#1 40psi, cyl#2 75psi, cyl#3 0psi, and cyl#4 50psi. One of the engine sensors was removed, I think the one that controls fuel becasue the injectors are not clicking but there is spark. The front engine belts are in place and the car is in time (first thing I checked).

The fuel tank is surgeons room clean, and I mean clean!! it has old gas in it but not a speck of anything else visible from the top fuel level sending unit hole. The tranny oil is at the proper level, and the tranny shifts ok, but needs a new seal on the left side. CV joints seem to have some play.
Both the small rear windows are broken out and so is the drivers window. Amazingly the car dame with a dash cap and floor mats. Interior is 60%

I am trying to decide what to do with the thing. I originally got it to strip and sell part by part but it is so tempting to fix these things. I guess I should go out and cut the thing in half with a saw to dissuade myself.

[Neil924]

Depending on the car and year compression should be up at 150 - 170 psi, maybe for the turbos it can be a little less.

Did you have it running? If not I wouldn't try.

What was thr price? How's the interior? Dash? Seats? Glass, body?

[gohim]

It may have the belt on it now, but did you check that they were indexed correctly?

I would guess that with the compression that low on that may cylinders, you are looking at a camshft belt that slip (causing multiple bent valves), or the camshaft belt broke and the P.O. installed a replacement belt to try the engine after the valves got bent.

This is not a simple blown headgasket.

How many miles on the engine?

[Mike924]

[joecitizennn]

Would you believe that this car had good sunroof hinges, and good sunroof gears? Not to mention a dash cap and some nice big antisway bars and knoi shocks. I have already pulled the tranny, will pull the engine next. Just for giggles I will tell you all what is wrong with it when it comes out. I cant wee why when people buy a porsche, they treat it like crap.

[Rasta Monsta]

Red 924S? Thexthy!

What will you do with it? Is the body straighten-able?

I am in the market for shocks if you decide to part it out (but it needs to be relatively soon).
_________________
Toofah King Bad

• WeiBe (1987 924S 2.5t) - 931 S3

[Mike924]

[joecitizennn]

The body is not hurt at all. Just thr valance is smashed. The left frame rail is wrinkled in three spots though. An easy fix, if I wanted to save this beast. But the engine scares me. When you have 0 compression in a cyl you have a big hole somehow.
When I look at the car sitting at the back of my shop, I feel a pang of guilt for putting down such a special machine.

[Rasta Monsta]

[Mike924]

Compression's low on all four cyclinders, so that supports the bent valve(s) theory. But Joe says the engine's 'in time'. Is that ignition timing or vavle timing, Joe?
_________________
1985 Porsche 924 'Lux', Kalahari Beige (my ex)
1993 Porsche 968 Coupe, Midnight Blue, 6 spd

'There is no substitute for a little grease under your fingernails.' - Chrenan, 924board.org

[colin]

id love to buy that rear sway bar, im close, so you wont have to deal with shipping. just give me a price. these cars arnt worth fixing with a crapy motor in them, just part it, make money, and buy yourself one that runs, and go from there.
_________________
1979 924 parting ways
1987 924S
1987 parts car

[Stu2j]

[Mike924]

Sorry, Stu, but you had to be told sometime.
_________________
1985 Porsche 924 'Lux', Kalahari Beige (my ex)
1993 Porsche 968 Coupe, Midnight Blue, 6 spd

'There is no substitute for a little grease under your fingernails.' - Chrenan, 924board.org

[joecitizennn]

You know, I have been assuming that it is in time because the timing belt is tight and looks good. Plus when you crank the car you dont hear any mechanical obstruction. I have not checked to actually see if the timing marks are lined up. I will do that next time I have the car inside.
Even with good voltage, the engine wants to turn very slow. I wonder if heat damage is causing parts to drag.

[joecitizennn]

I attempted to check the timing today, but could find no timing marks on the flywheel. I know they are there, somewhere under the rust, but I dont know where. the window on the bell-housing was narrower than I am used to, and the finger that sticks out as a referance for the TDC mark was much shorter than I have seen. Upon lining up the cam mark in both positions I did not find a TDC mark on the flywheel. I even had my wife turn the motor over slowly with a wrench so I could spot where the tdc mark was, but to no avail. I did notice that the water-pump pulley was wobbling like heck, indicating failed bearing. I also noticed that the timing tensioner was not the spring type of which I am acquainted. I thought that all 924S had the spring type tensioner since they were made after 85.5. Apparently not.
I pulled the head, and found pristine valves and pistons. What the heck? I looked closely at the head gasket but was not sure what I was seeing. I found no single spot where it looked like it was blown, instead the whole contact surface looked bad, covered with a chalky yellow brown residue. It looked like ground up corn cobb material, and there was so much of it that it fell out of the head and spilled down the oil galleries when I removed the head. There was oil in the waterjacket, but I think that spilled out of the head on removal. Im not really sure what caused the poor compression. THe pistons and valves are in good shape.