It nearly runs - errrr - So close

[Spikehaus]

It was brand new plugs, but I will check this, cheers

[AshG]

i think he ment is there fuel on the plugs although i could be wrong.

has it got an auto choke?

[twinturbo]

If it's the 2.8 MFi in his pics then it will not have a choke..


TBH... I hate K-Jet. I spent 3 hrs trying to revive my m8's MK2 golf 16V after a 6 month layup!!


Does the 2.8 have the cold start valve, that can be rigged to spray a little fuel in if the main injectors are not firing..

Other than that and lifting the air plate to stimulate fuel preasure I don't remember much about the 2.8 MFi set up.

ask on www.xrstyle.co.uk/forums

TT

[Spikehaus]

Yes, it does have a cold start valve, how can this be rigged to spray fuel? It sounds like most of my problems are fuel related? That's all the bits I replaced, so have a good few tips to try again on Thursday. Cheers Guys

[AshG]

little tip buy a can of easy start. take off the air filter and spray it in the inlet as you try and start it. if its just cold then that should get you going. my knowledge of the ford v6 lumps is vague at best. the best way to approach it is you know it worked fine before so it should mechanically be ok. chances are its something stupid stopping it from going.

check all the sensors to make sure nothing has been moved check the ht leads are on the correct way round and you dizzy isnt damp. then check you have spark. if you have fuel and its not firing i would expect the plugs to be wet with petrol when you take them out.

if you have got spark plugs that are sparking but are damp with fuel and it wont go then it could be timing. if you have no fuel go over the fuel system. remember you only need fuel spark and air so go through each, one by one.

[twinturbo]

Cold start is just a ver crude injector, shoudl have two wires one being earht other +12v...

I can't remember if it's switched on the posetive or negative. But anyway. Get it to squirt some fuel by electrifying it manualy and somone turning over the engine.

IF it does not fire then...

Check the firing order..

check the dizzy is not 180 degrees out ( if it's been removed ) as this is a common one on the V6 .

TT

[flyerncle]

It may have a warm up regulator as fitted to Bosch mechanical injection system's,large alloy block with two fuel pipes in it and if the old brain serves me correctly there is a second injector for the cold start.
I have known the mixture screw come out as people fiddle with them and this stops the engine running also,3mm screw in tube on body of control unit.

[Spikehaus]

IF RUNS!!!!!!!!!!! YIPPIE, WHAT A GREAT XMAS AND NEW YEAR GIFT!

With special thanks to all the useful tips from everyone here and especially twinturbo who directed me to a car specific forum where I was provided with car specific details on the Bosch Injection K-jet System!

Dad and I where in the workshop and both had a spare hour towards the end of the day, so we decided to use our time wisely and check the timing of the dizzy along with the firing order. This all check out in conjunction to the cylinder positions.

We where both positive that the problem must be fuel related as it was so near to starting. Once again we bypassed the fuel pump relay to get the system up to pressure. On Xmas eve I had stripped the cold start injector and this was injecting while the starter motor was running. I also has system pressure but no fuel return.

With the extra pair of hands we started to turn the engine on the starter while I pushed the paddle by hand in the hope to force some fuel into the injectors. It was on the last attempt before we both got carbon monoxide poisoning! Any longer and we would have had to open the RSD. Suddenly I heard splashes in the tank from the fuel return..

Spurred on by this and for one last ditch effort for the day, and some extra pushes on the throttle for good luck it came alive!!! Yippie!!!

If only I had my camera to hand... Still, the new relay turned up today so will film it for you next time.

One again thanks and good luck for the new year.

[twinturbo]

Excelent, Glad to be of help and glad my fellow XR enthusiasts were able to point you to a happy conclusion.

I know the joy of a running engine after a head scratcher. My first ever engine change was on br Brother in laws sierra. We had never tried a big job, we had never seen the replacement run!.. After a days work it did not fire.. But next morning whilst he was at work we gave it big effort and shre fired.. I ran all the way up and down the street waving at the neighbours who had shown intrest whilst walking past... Bro was so chuffed when I collected him from work in his own car. ( it was his first at 17, cost him £1400 and cracked a piston after 2 months (not his fault)... £450 for the replacement )

TT