Runaway 200Tdi

[Ibex94]

Evening all,

Unfortunately project Ibex has been languishing in the barn untouched for a couple of years.  Time has come to push it over the line, so having installed the battery I decide to give starting the old girl a go.  This is an engine I know the history of as it ended up being rebuilt when I originally bought it to replace my original trucks turbo diesel.  I had the engine running a couple of years ago without any real issues and drove the truck round the farm.  So why 2 years on having cranked the engine over for 30 seconds with the fuel pump isolated to give the oil a stir does the engine want to run off when I then start it, which it does on first turn of the key?  The only exterior sign of distress I can see is fuel leaking from the feed from the fuel filter around the banjo - this was bone dry before hand.

Any ideas?

Thanks folks

Rob

[ballcock]

When you say the fuel pump isolated, do you mean the stop solenoid supply disconnected? There was a post on the forum a little while ago covering a similiar issue with the pump over revving when started after being stood for a while. I believe the cause to be the mechanism sticking.

[TSD]

Did it shut down on the key? If so, the fuel pump is stuck in the start position, which is the same as full throttle. I had it happen to me a few years back. I think there must have been a little water in the diesel left in the IP. (If not then it's probably oil through the turbo seals into the intake)

I'm told sometimes they free off after a few starts, or with a little fiddling fettling. Mine required the FIP to be rebuilt at a local specialist to sort it out properly.

[oneandtwo]

I have had that problem on a few 300tdis that have been standing for a couple of years. Vigorous flicks of the pump throttle lever has always cured it.

[Ibex94]

Thanks all, yes isolated pump with the solenoid supply.  Yes the engine turned off on the key and the turbo was refurbished albeit several years ago. Will persevere with a a little messing about with the throttle and give it a few more starts - wasn't aware that start setting was equivalent to full fuel.  Might also try pull the boost pin to see what it looks like.

Watch this space🤔

[steve b]

Disconnect the turbo from the intercooler = no boost or crankcase breather connected to the intake so while you try to unstick the start setting  it won't grenade from engine oil in the intake or rev out to full speed from cold .

This has never worked for me and a FIP strip and clean at my local specialist , as TSD , has solved it .

Be very careful

cheers

Steve b