D1 Guy

Hi guys, Ive got a 1987 TII and it wont start for anything. I bought it from a fellow that said that his gas cap got stolen and water got into the tank which caused the car not to start. So far, Ive replaced the gas tank and fuel pump b/c they were rusty. The car still doesnt start. Ive tried the 3 step unflooding procedure and the complex unflooding procedure explained on rx7.com. It still wont start. The engine just spins freely with no fire. I tried replacing the leading spark plugs and that didnt fix the problem either (autozone was out of the trailing). Should I try replacing all of the plugs? Could it be an injector, fuse, vac., fuel, oil problem? I put injector cleaner in the fuel along with the protek r from pettit racing (that I use in my R2). The guy that I bought the car from said that it ran perfect until it got rain in the tank. Any help/thoughts/advice would be much appreciated. Thanks very much in advance. BTW, The guy also told me that it would start pretty easy on carb cleaner.....I havent tried it, but if itll start on that, that should mean that the engine is still in good shape. Its only got 100k

misterstyx69

iTrader: (142)

Check to see if the plugs are wet with fuel..and if not..pop the fuel line at the engine between the fuel filter..put it in a bottle or container and chcek flow..to see if you are gettin fuel..could be clogged filter..If they are clean them and do a deflood adding a straw full of oil to the lower plug holes ..roll the engine a couple seconds replace the plugs ,wires..and try it from there..

RotaryX

Did the car sit for any length of time? Is so you might want to check compression, and try the ATF trick.

D1 Guy

Ok Ill check the fuel filter tomorrow. I did pull out the plugs and burned off the wetness with a blow torch. I did put a little over an ounce of auto. tranny fluid in the bottem 2 holes. It still wouldnt start. It could be the fuel filter though....what about injectors?

Yes the car sat for about a month. We tried the atf trick. It sounds like it has compression b/c everynow and then I can hear a grunt. I dont know.....I feel like its a fuel problem...but I dont know for sure. I do know that I hooked a new leading spark plug up to each of the plug wires and turned the starter over.....I didnt see a spark with it in any of the plug wires. Any more ideas?

RboYi

So your getting no spark from your plugs?

D1 Guy

I couldnt see one. note that Ive been away from rotaries for 5 years now b/c I bought an s14 and built it from the ground up. Now I have 2 rotaries......the turbo 2 is giving me the trouble though....now back to the subject. When I checked for spark on my s14, I could see a large spark comming from the node on the plug hitting the top piece. There is no top piece on the rotary plug, so I dont really know what to look for.....I hooked up the plug to the wire, grounded it, turned the starter over and couldnt see any spark at all on any wire. I dont really know a lot about the rotary, but I know enough to know that I should see something there right....small spark or something. What could be the reason that Im not getting a spark? Its not likely that both sets of coils are bad and the car was running fine until it got water in the gas tank. Whatcha think?

Legends702

i just got my t2 tonight that has been sitting for about 2 months cause it was being shipped now im pretty much having the same problem, first it was the battery, i replaced the battery, car started then i stop to get gas and when i try to crank it back up it doesnt start, had to push start it so i try to drive it home and it dies at a stop... it was bogging while driving a little so im not sure if its fuel or what.. =/ oh yeah mine is also a 87 t2

Tournapart

iTrader: (4)

you might want to get a new FUEL FILTER if there was rust in the tank, clogged fuel filters are one of the most overlooked easy and cheap preventitive maintence procedures. i would personally do a major tune up, all fluids flushed and replaced, new fuel and air filters, MMO gas treatment (it worked great for me), check all conncetions, grounds, and vacuum lines and replace any if necessary. but thats just me


you might also want to think about replacing the fuel lines, if by chance a peice of rust is in the line it can mess everything up as well

good luck and welcome

D1 Guy

The battery isnt the problem b/c I had the car hooked directly to the battery charger, so I know that isnt the case. Ill find a fuel filter today and try that. Ill let you guys know the progress. In the mean time, any other ideas would be great. Thanks

Integral

iTrader: (3)

retrace all your wiring to and from the ecu and the cas(after you try all the easy stuff first)...i had some problems in there on my car. it's not fun.

Whizbang

fuel filter. if not that, then possible for the injectors to be clogged.

88and93

You need to test the main relay if you don't have spark in either the leading or trailing plugs. If the main relay works (see the shop manual) it may be the ignition switch. Good luck.

D1 Guy

wow, no one has fuel filters for an 87 turbo rx7 lol. Itll take 3 days to get here......the rest of my spark plugs will be in today. I hope I can figure something out today. I plan on working all day on it.

CyborgRyu

iTrader: (8)

i found my fuel filters on ebay

anyways, you said you got zero park? Put the plugs up against your chassis away from electrical stuff and crank it over. Do you see a strong blue spark come out? No spark? Change plugs, still none? Change plug wires, if you still don't have spark, look up the factory service manual to check how to check the coil packs if they are good or not.

Did you bother checking any fuses that might of had a problem?

D1 Guy

Yeah no spark at all. I got the new plugs today and they didnt spark either. I havent tried the wires yet. The motor still just spins freely. It wont start on ether either. I know the fuel pump is working b/c I hear it and can smell the gas. I guess it could be the wires. I dont know what to do. If it was flooded, itd at least fire.....Im sure its flooded, but it should still try to start. I tried pouring some protek r from pettit racing in one if the vac. lines to oil the rotors a bit, but that did nothing. Has anyone else had this problem?

HAILERS

1. Never believe a word the previous ower says. Yes, the engine ran good til he rolled a apex seal and after he had it towed to his place it rained and the fuel cap was off so rain got in the fuel tank. So......its sorta a half truth. Humor, please.

You have a second RX. You said so.

Pull its CAS out and offer up the electrical plug of the bad car to that cas. Turn the key to ON. Spin the donor cas lower gear. You should hear the spark plugs click and the fuel injectors click.

It's best to lay the lower sparkplug wires on the fender when you do that so you can see the arcing better.

I suggest this method because the starter is not dragging the battery down and effecting the ignition process AND your not wearing out a two hundred buck starter AND not turning a rotor over in a chamber that has no oil in it wearing out the rotor housing.

I'd never buy a pair of Trail sparkplugs for a car that won't start. It's a waste of resources. They do squat for starting the car.

Only after you do the cas bit above would I believe there is no spark.

No spark now? Absolutly none? Go to the small, white, two socket plug on the Lead coil assy and see if there is 12vdc on the black/yellow wire. Ignore the other wire on that plug. Got voltage?

Then check for approx five volts dc on the Brown/White wire on the boost sensor plug. No five volts? Go to the ECU and see if there is 12v on the all the injector wires on the samll plug of the ECU. No voltage?

Is the Solenoid Resistor Plug installed on the Solenoid Resistor? Yes? PUll the plug off the solenoid resistor and see if there is 12vdc on the middle wire of the plug. The one that is black/yellow. NO voltage there?

If you had no voltage at the black/yellow wire on the small, white, two socket plug at the Lead coil assy then I'd go to the Main Relay for trouble shooting but make sure the EGI INJ fuse and EGI COMP fuse are good in the engine bay. It's the EGI INJ that feeds the small, two wire plug at the Lead coil assy. It also feeds the fuel injectors. Since you said you smell fuel, then the injectors are probably working and the EGI INJ fuse is probably good which in turn means there should be 12vdc on the Lead coil black/yellow iwire and you have been gravely mistaken about no spark being made.

Long ago you should have removed both lower sparkplugs and had someone spin the engine while you first put your finger on one hole and then the other hole to see if your getting a good/same pulses out of each rotor. A novice can differentiate b/t a good rotor and a bad rotor just by comparing the pulses b/t the two rotors. Got one rotor that is flat and does not even slightly try to push your finge off the hole. Stop right now with trying to start the car and decide if its worth fixing/overhauling/buying a New engine for. Don't waste anymore time on it.

You can spin the engine by yourself by jumpering 12v to the black/white wire to the START wire which is in a plug under the Trail coils. It's black/white and in a plug with a Blue shorting connector on it. That applies if you don't have Theft Protection. Got theft protection? pull the plug off the ***Theft**** relay mounted on or near the Main relay and jumper 12vdc to it's black/white wire. Starter should turn over and if you did not take the car out of gear first,..........you just ran your foot over.

I'd seriously try the donated cas experiment first. You just connect the cas elect plug to it and spin its lower gear with your fingers with the key ON.

get an digital meter

D1 Guy

Well, it seems that Im not getting any spark at all from my coils. I guess its a wiring problem even though this is a factory T2. I assume something isnt connected even though I cant find anything unplugged. Any ideas on what that could be?

D1 Guy

well, I put the car on the scanner and it said no signal from the cas and leading coil. I replaced the cas and distributer and still no luck. I guess Ill have to replace the coils as well. Maybe thatll work. Does anyone else have any ideas?