killalot13601

iTrader: (5)

Ok, here is what I have going on.

I have a 86 N/A, I pulled the junk N/A out and went down and bought a TII Engine, Tranny, ECU, and Wireharness in awsome shape.

I dropped it all in last night, Turned it over just to make sure everything was working properly, it turned over sounded like ur regular engine, i checked all my fluids and put gas int he car and tried to turn it over and it basicly sounds like compression went out the drain.

very light puffs.

But not 10 min before the compression was fine. Why would It randomly just start sounding very weak.

I also need to get a new pressure sensor since I have the N/A one still, it wont even begin to work without it will it?

Anyways, Any help is appreciated.

HAILERS

You probably blew the ENGINE fuse and will continue to blow it IF you didn't rearrange the wiring in the Turbo EM harness. IF you already did that, then that isn't the fault.

You would have blown the ENGINE fuse if you used the Turbo EM harness. To see why, look at the Turbo pinouts for the Turbo EM harness and compare them with the N/A EM harness pinnouts. Free manual online.

HINT: Look at the Alternators wiring and also look at the boost gauge wiring from the boost/pressure sensor for the Turbo EM harness.

killalot13601

iTrader: (5)

I swapped out the ENTIRE wireharness and ECU so why would I have to look at the N/A?

Im not using a N/A harness with the Turbo to ECU.

killalot13601

iTrader: (5)

So, I got all that figured out, Now Im on the problem of no spark, For some reason I cant get any spark, Ive tried different distributers, different coils, both things I know work, checked the wiring, I really cant figure it out.

HAILERS

Yeah. THAT is the PROBLEM. Possibly.

That Turbo EM harness is mating with a non turbo FRONT harness. The wires are not the same in the Turbo EM harness as in the Non Turbo EM harness, so there's no reason for things to work right.

It's not that big a deal, but it won't work if you don't do at least the minimal changes where the EM harness meets with the Front harness (two Orange plugs just inside the interior.

What trips things up is if you did nothing, then you'll have the ENGINE fuse blowing partially due to it NOW backfeeding 12vdc to the boost/pressure sensor output (it's output never can get over 5vdc ever) and also feeding 12vdc to the ECU on the boost/pressue sensor input to the ECU. Again, a input that NEVER gets ever gets up to 5vdc.

The ENGINE fuse if blown, will keep you from having spark.

There's a number of other wires in that Turbo harness that won't mate with the right wires when you mate it with the Front harness. But nobody seems interested in straightening them out so we'll let that go. Just FYI.

If you'd used the non turbo EM harness on the engine the car would be driveable right now.

EDIT: IF you have already gone to the mating plug b/t the EM harness and the Front harness and run new wires from there to the alternator, then this potential problem has already been taken care of.

killalot13601

iTrader: (5)

ya, Thanks alot.

I got the spark fixed for the record.

Now Im just trying to get it to start.
Im afraid my compression might be shot. If the timing was completely off and it was attempted to be started would that blow the seals?

HAILERS

Doubtful if that would break a apex seal.

You might try the bit where you put oil in the rotors. Some say squirt with a squirt can.

I say buy a piece of vinyl hose from the hardware store. Mabe two feet long.

Pull the lower plugs. Screw the piece of 1/2" hose into the sparkplug hole. Its soft tubing and screws into the threads easily. Only a few threads is needed.

Then pour oil in the hose, and while keeping oil in the hose, rotate the engine with the front pulley. That way all THREE rotor faces get oil in them. Do it to both rotors. That should give you enough oil in the chambers to make compression. Put plugs back in and start the engine.

killalot13601

iTrader: (5)

I tried that sorta, I got a straw from a fastrac cup and put a little in I wasnt sure how much.