ASAP reply needed

Started by nc30pete, June 28, 2012, 08:35:55 PM

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nc30pete

Hi I\'m up the yard trying to decipher my running issues , I\'ve got a question I need an answer to ASAP , do the oil injectors ( for the omp ) sit on top of each rotor housing under the inlet manifold ? If so , if they are bolted on and not got any pipes to them (either feed or vacuum ) can that suck in excess / unmetered air ????

If anyone is willing to txt or call me ( don\'t mind ringing back ) I\'m on 07944325136

Cheers in advance ;-)

nc30pete

Btw it\'s the cappuccino / Rex hybrid

nc30pete

Can this q- just popped one out ,  they have been sealed up via weld - back to the drawing board!!

Grant Monkhouse

What is the issue you are having? If you describe it too is we may be able to help point you in the right direction. Possibly something you have over looked.

nc30pete

Right it fires up but it pops n splutters , and backfires a goodun - normally that\'s a sign of weak mix / air leak or ignition timing - same theory apply to rotarys ?

I\'ve got top half of inlet manifold off ATM and just checking my coils for correct readings etc.

In the etc section of the FCC commander I have put it to the funny plus sign on sequential operation which means it is running single rugby right? On the other options should I turn any on ?

Last but not least if I find no air leaks shall i richen it up on the commander a notch of two?

shaunwil

If your worried stick some premix in the petrol just in case. There is a threaded hole at the top of the housing and you need to tie a vacuum source in the top of the injector and the oil feeds in via a little solid plastic pipe.

Do you have a copy of the workshop manual, there is a section on how to check the omp and injectors too.

Shaun
1994 White FD with A-spec GT3574R - 358bhp at the hubs at 0.9bar :3gears-lh
2003 Mondeo 2lt 130ps Diesel Estate Daily :driving

nc30pete

Engine runs premix as the omp doesn\'t operate / not plumbed in.

Got manuals too , that\'s where I\'m getting my coil testing data from. So far found on leading pack on l2 very corroded output post so just cleaned it up.

m1tch

It might cough and splutter a bit if the engine hasn\'t got up to temperature on the previous running - they run rich on startup and they can flood if they aren\'t brought up to temperature properly, you might find its backfiring due to extra fuel in the rotor chambers which is just clearing out?

Grant Monkhouse

As Mitch said let it get to temperature first.

I take it your using an fd engine? If so my fd coughed and spluttered under load, around 4,000rpm, basically it felt like the engine had stopped, had the mapping looked at and they took some fuel out of it as it was running rich in that area. This was after a fresh rebuild though and the engine had bed in further giving higher compression

m1tch

The crossover point for the primary and secondary injectors are around the 3-4k mark, as Grant said it might be to do with mapping.

p.s. my FC pops and grumbles a bit when its coming up to temperature, you only really know its up to temperature when it doesn\'t do it anymore lol

nc30pete

It won\'t run well enough to do that! It\'s barely starting at all if it does run I can\'t catch it on the throttle :-/

nc30pete

After a couple of attempts to start I re check the plugs and the trailing plugs always seem wet n coked up but leading dry - this to be expected as its not running ok ?

Thanks all for yr input peeps it is mucho appreciated :-)

m1tch

Its probably due to it being flooded, then you try and start the car again which then injects more fuel into the engine making the flooding worse. Try a deflood procedure:

EGI fuse out
Throttle wide open
Crank over a few times - 3 x 5 second bursts
EGI fuse back in
Throttle closed (ie as if you were starting like normal)
Turn it over to see if it fires

If this doesn\'t work check the plugs, if they are still wet dry them and try removing the EGI fuse and cranking with the plugs out, then put the dry plugs back in and see if that makes a difference.

Grant Monkhouse

Defo flooded of its not starting at all. Also are you on an apexi ecu? Did it come with the engine? If not the map on it could be for a different setup so you. Luke maybe do with resetting it to the base map.

nc30pete

Only ever try crank it for 5 secs a time for a couple of goes then I whip plugs out , dry them off and do the fuse out trick to de flood the chambers. Also initialised the ecu do it ran on the base map when I got the ecu running :-)

In the etc menu on the commander ,which settings do the single turbo peeps use here?