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[JamesV6CDX]

Project 1, now rebuilt, but won't start.

All electrical connectors are home etc, and the earth's are secure. It turns over ok, and feels like there's very good compression. However, after a spell of turning it over, especially with foot on throttle, we get a loud hiss/backfire through the intake.

Removed a spark plug, earthed it and turned the engine over, and there does not appear to be a spark.

Have checked and are confident of the following:

Spark plug leads are in correct order. (copying the pattern of another 2.0 - do they differ?)
Camshaft timing is correct.
Engine earth there.
Fuel IS being delivered to the injector rail.

I reckon the lack of apparent spark could be a culprit!

Can anyone throw in any suggestions please of things to check?

Cheers
J

[JamesV6CDX]

PS I have read the fault codes, but dno't suppose they are accurate since it's not actually ran. The only code, apart from 12, is code 19 - but I guess I would get this without the engine running.

[mijfife]

Hi James, the lack of spark certainly sounds like the likely culprit. When I transplanted my 2ltr engine, it too took a while to start. On hind sight, I should have bled the air out of the injector rail. Might be worth trying this as well.

Cheers Jim  

[JamesV6CDX]

testing with a multimeter has just confirmed that there is a good engine earth, and there is 12 volts going into the DIS pack when the ignition is turned on.

Still no spark though and backfires. Thoughts?

[JamesV6CDX]

Also - could this be an immobiliser issue? Its been stood for ages without a battery on, and I've not operated the central locking since trying to start it - would an immobiliser issue cause it to have no spark?!

[Taxi_Driver]

testing with a multimeter has just confirmed that there is a good engine earth, and there is 12 volts going into the DIS pack when the ignition is turned on.

Still no spark though and backfires. Thoughts?

If its backfiring then i would have thought it is sparking...but at the wrong time...definately sure plugs leads are in correct order?

[JamesV6CDX]

I've copied exactly the plug leads off another 2.0 of the same year, unless they changed the locations of which leads go where on ths DIS, then I know it's right...

[Taxi_Driver]

testing with a multimeter has just confirmed that there is a good engine earth, and there is 12 volts going into the DIS pack when the ignition is turned on.

Still no spark though and backfires. Thoughts?

If its backfiring then i would have thought it is sparking...but at the wrong time...definately sure plugs leads are in correct order?

Just had a look at code 19......it implies cranksensor fault ......31 is also cranksensor fault but implies you get 31 with engine not running

So going by that I would check the crank sensor and wiring......coz that will stop it from starting

hth

[Marks DTM Calib]

Yup...check the crank sensor, it will stop the ignition firing (you still get 12V at the DIS becuase its a neg pulse to spark) and the fuel injectors firing to.....

[JamesV6CDX]

that's strange, because the crank sensor was working in the donor engine before the transplant.. I have double checked that the connector is fully home and it's made no difference.

I am now doubting myself about the no-spark issue. I tried turning it over again with my foot on the gas - and it backfired so badly that it blew the airbox off and damaged the header tank! Would it have done that, without a spark? Is anyone able to confirm where I should have the HT leads?

I'm so near, yet so bloody far

[Marks DTM Calib]

Ignition timing is wrong then, its sparking when the inlet valve is open......check the leads etc.

There should be numbers on the DIS pack and remember that number one cylinder is at the cambelt end...

[JamesV6CDX]

Right, thanks Mark

Mark, tell me - I've just been researching, and the timing order is 1342?

Does that mean I connect the lead from no 1 on the dis pack at the timing belt end, and then a lead from no 2 on the dispack to the one at the back of the engine?

Could you explain in fools terms, where on the plugs my leads need to go depending on what number is on the dispack?

Cheers

[JamesV6CDX]

Or anyone? I wanna go try it and see if it starts

[Taxi_Driver]

Or anyone? I wanna go try it and see if it starts

Sorry mate.....i dont know .... but theres only 16 possible combinations  

[JamesV6CDX]

You bugger

All I wanna know is where my plug leads go