iveco wont start

[amandajtommo]

hi i have a 75E17 which had the turbo go last week and lost quite a bit of oil into the intercooler and exhaust manifold. i have today fitted a new turbo, and the iveco started first time beautifully. i left it ticking over for three or four minutes and all of a sudden it revved flat out on its own.. i tried to turn the key off and it wouldnt stop, so i put it into 5th and stalled it... now it wont start at all. any help please?

[Mister3man]

As above...you'll probably find the engine has run on its own oil.

Pretty terminal tbh.

[TheEnd]

Yep, as above, it is started to suck in its own oil and run on it as a fuel.
Diesels don't tend to have throttles, so when it gets air and fuel it'll runaway until it blows up, runs out of oil, or in this case is mechanically stalled.

[amandajtommo]

hi thanks everyone,yes i think oil from the old turbo going wrong was still in the intercooler when the new one was fitted and it pressured the intercooler and blew the oil through the manifold, what i am unsure of is what it will have done, at the moment engine still turns over on the key, there is no knocking noise, it just doesnt fire, there was no bang and it was running when i stalled it - any clues as to where you would start checking to find damage would be gratefully received ........... thanks

[Mister3man]

amandajtommo said:

hi thanks everyone,yes i think oil from the old turbo going wrong was still in the intercooler when the new one was fitted and it pressured the intercooler and blew the oil through the manifold, what i am unsure of is what it will have done, at the moment engine still turns over on the key, there is no knocking noise, it just doesnt fire, there was no bang and it was running when i stalled it - any clues as to where you would start checking to find damage would be gratefully received ........... thanks

I would do a compression test and go from there

[BFG TERRANO]

its not sounding good. Clear the intake and intercooler of oil, if it needs it take it off and clean out with petrol and dry. At this stage you have nothing left to lose. Compression test may see if oil is passing the rings and fueling the engine.

[jbi]

A lex said:

Google/Youtube for 'diesling' and you will see how bad it can get.

Never heard of "dieseling" before

Heard of the term "runaway" though

[ruff'n'smov]

jbi said:

A lex said:

Google/Youtube for 'diesling' and you will see how bad it can get.

Never heard of "dieseling" before

Heard of the term "runaway" though

runaway / over run. are the terms I've heard.

[sooperscoop]

jbi said:

Never heard of "dieseling" before

I thought "dieseling" was when the engine runs backwards? Or am I horribly confused?

[smartphone hater]

http://en.wikipedia.org/wiki/Dieseling

[4key]

So you are certain that it was left over oil in the intercooler and you stopped it before it munched itself?

If theres still compression and no obvious signs of damage just make sure that its all bled up and keep trying, will probably take extra effort to kick into life because its caked in oil in there but it will go eventually, theyre strong old lumps.

[amandajtommo]

hi all - many thanks for all the answers - would anyone know how to do a compression test to save me pulling it all to bits if there is no point? thanks again

[4key]

Guess that you dont have a compression tester then?

• This is internet advice and to be taken in the manner that it is intended, its what I would do if I was doing it on the cheap.

If it had bent a rod or holed something you would more than likely hear it in the way it was turning over on the key, and if it has eaten itself theres little more damage you can do to it anyway. The reason it wont start is probably because everything is coated in oil, take all of the injectors off and spin it over on the starter motor a few times to try and clear the bores a bit. Then stick it back together, bleed it up and keep trying to start it.. a couple of squirts of easystart might give it the kick it needs, but dont go mad on it.

If that fails you might as well pay for someone to have a look at it if you are going to have to buy a compression tester anyway.

[S0 What]

80s carb equiped cars usually had an "anti dieseling vavle" controled by the ign to stop run on and IIRC the term dieseling is cos the engine runs on without a spark IE like a diesel, as it's now pretty defunct in petrol terms it now used to describe a runaway diesel IR running when the usuall way of stopping the engine isn't working (cutting spark or fuel), similar, not the same but close enough to only confuse those of us who know what a carb is
In fact dieseling was also a problem back in the CO2 powerd paintball days when the liquid CO2 would enter the gun and cause it to go full auto (IE not stop after one shot).

[jbi]

how about rigging up a CO2 fire extinguisher ready to fire directly into the air intake?

I know some of the heavy duty american diesel pickups came with a butterfly valve in the intake to shutoff the air supply if the engine started to run away.

[amandajtommo]

hi thanks all - esp 4key - thats we are going to do unless anyone else has any good ideas........ a compression test tomorrow hopefully by taking the injectors out and if not, turn it over and give it a few squirts of eazi start - i dont think i have anything to lose at the moment! seeing as it didnt go bang and is turning over without any knocking noise at all, unless anyone knows if ivecos have a system of shutting off fuel after being over revved, i dont see any point in pulling the engine apart too quickly....
thanks to all .... anyone else with any ideas would be gratefully received !!

[lizleigh]

Sorry to resurrect an old thread but wondered if there was any conclusion to this? Our Iveco went runaway a few weeks ago and now won't start although she turns over and tries very hard. We've had a mobile diagnostic done and were told to replace the fuel pump but we think the diagnosis is wrong as a mechanic found a popped rocker and bent rod? As a layman when it comes to all things mechanical, I don't know if the engine is beyond help or if it's worth trying to replace what has so far been found to be bent & broken?

Would appreciate anyones thoughts on this

[powerstroke]

You need to get it pluged in se if there are any faults logged however if there was/is some mecanical damage already found it would be a good idea to remove the head and measure the piston hights and look for any damage … The other thing is there are small filters in the engine breather on some models if these get missed on service the end result is the seals blow on the turbo!!!!!