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Diesel brain picking

Posted: 18 Feb 2017, 14:29
by normandybrit
1991 t3 1700 non turbo diesel - 130000 miles.
I wonder if any of the experts out there can help me with a problem I'm having with my van. The other day I started up as normal and 200 yards later the motor cut out. It would grudgingly fire up again but now seems to be on one (?) cylinder only and lots of white smoke. I tried putting fresh fuel to the pump in case it was duff fuel - no different. The motor runs with the throttle wide open but there's not a lot of revs and there's still the smoke. No oil obvious in either of the water tanks. Slightly cracking the feeds to the injectors shows there's fuel under pressure. I'm presuming it's either a duff head gasket or the head itself but would have thought that the change from good to crap performance would have been more gradual. Any thoughts please gents.........

Re: Diesel brain picking

Posted: 18 Feb 2017, 15:18
by RogerT
White smoke, or white steam?

Re: Diesel brain picking

Posted: 18 Feb 2017, 15:30
by normandybrit
Given the way it dissipates I'd say it was steam. No obvious loss of water from the filler tank though.

Re: Diesel brain picking

Posted: 18 Feb 2017, 15:39
by dave friday
try letting some fuel/water out of the fuel filter tap!

Re: Diesel brain picking

Posted: 18 Feb 2017, 15:51
by normandybrit
I thought it might be that. Opened the tap and nothing came out. I then disconnected the lines from the filter to the pump and filled the lines with fresh diesel. No difference.......

Re: Diesel brain picking

Posted: 18 Feb 2017, 16:03
by dave friday
no Diesel in the filter!!? have you run out of fuel?

Re: Diesel brain picking

Posted: 18 Feb 2017, 16:15
by Oldiebut goodie
You have to loosen the top also otherwise the flow will not happen usually as there isn't enough suction to pull the fuel from the tank.

Re: Diesel brain picking

Posted: 18 Feb 2017, 17:40
by clift_d
You could try disconnecting the hose from the filter that runs to the injection pump and sticking it in a container of fresh diesel. That would at least determine whether the problem was the fuel supply or the engine.

Re: Diesel brain picking

Posted: 19 Feb 2017, 13:58
by bigherb
Check the timing belt it might have jumped a tooth.

Re: Diesel brain picking

Posted: 19 Feb 2017, 17:10
by jhollies
The crank pulley bolt could of worked lose & then rocks on the key waring half the key away about a tooth are more,ask me how I know ?