pug 806 engine running on

boy this has had a few electrical problems , nearly there now but today I came to switcch it off & the enging just carried on running. had to rev the engine & turn the key on & off a few times before it stopped. Tried it about half doz times since & its fine, any pointers ,its a 97 turbo diesel,

ta.

Could be an injector issue but would most probably guess at the turbo seals gone allowing oil into the system.

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Southern Cross Motorcycles - Aprilia servicing / repairs
Italia Refinish - Paintwork

it could also be the stop solenoid failing ...

i've had this problem twice on BX diesels with the XUD engine, the stop solenoid is located on the injector pump, inside it is a little plunger and spring..
the plunger is faced with a rubber type material that presses down to cut the fuel when the ignition is switched off, i've had that rubber chip a couple of times thus allowing fuel to keep flowing ....

these plungers are expensive from the dealers as you have to buy the complete solenoid (£80 from rover) so get yourself round the breakers, should cost no more than a fiver for a complete solenoid ...

there may be more than one solenoid as pug use more than one injector pump so make sure you know what yours looks like so you get the correct one, even the plungers vary from pump to pump

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John Wayne is my hero, he uses a sixgun, I use six hammers

Thanks for that, I think the stop solinoid screw has come loose as the wire is not doing anything & isnt connected to the soliniod properly now. Need to find a tiny screw to fix it back on.

Many thanks

if the stop solenoid wire has disconnected i'm surprised you even get it to start unless the rubber is badly chipped or has been removed completely ...

when there is no current to energise the solenoid it can't pull the plunger back off the seat...

you got a manual for that engine to make sure you're looking at the correct bit ??

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John Wayne is my hero, he uses a sixgun, I use six hammers

Ah,maybe I,m looking at the wrong thng then. The bit I,m on about is at the rear of the bosch pump, the wire looks like an accelerator cable which presses a plunger but it isnt as thats at the front. Will have another look tommorow, well shortly, as its a big day in our house lol!

thanks for the advice.

i think the thing you've been looking at is something to do with cold start (not sure)

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John Wayne is my hero, he uses a sixgun, I use six hammers

NiteMare wrote

it could also be the stop solenoid failing ...

....is very probably the correct answer. It's a common fault on Bosch pumps. The sealing washer in the bottom of them falls to bits, causing the valve not to close.

Quote

i've had this problem twice on BX diesels with the XUD engine, the stop solenoid is located on the injector pump, inside it is a little plunger and spring..
the plunger is faced with a rubber type material that presses down to cut the fuel when the ignition is switched off, i've had that rubber chip a couple of times thus allowing fuel to keep flowing ....

these plungers are expensive from the dealers as you have to buy the complete solenoid (£80 from rover) so get yourself round the breakers, should cost no more than a fiver for a complete solenoid ...

there may be more than one solenoid as pug use more than one injector pump so make sure you know what yours looks like so you get the correct one, even the plungers vary from pump to pump

Thank you thank you thank you gents.