running rough

[dazonit]

my bongo started to run rough on my way home srugling to rev above 3000 and a slight missfire if i hold the pedel down at 2000 its the same loss of power and slight missfire iv blown down the fuel pipes to the tank and dont see any blockage iv tried to feed the pump from a clean jar of diesel and now i think i have air in the system as its even worse iv openend injecter s 1 and 2 to bleed the air but still the same
any ideas
thanks in advance

[dazonit]

well it wont fire up at all now the only other thing i can think of is to check the little mesh filter were the fuel feeds the pump

[Bob]

Bongy is self bleeding, so more likely a blocked filter than air in the system.

Others will help soon.

[francophile1947]

You don't say if it ran normally when feeding the pump from the clean diesel in the jar
Your symptoms are those of a blocked fuel filter or, if it's old enough to have one, the banjo filter on the pump. Or, if it happened suddenly, you may have sucked something into the air filter or it's ducting.

[dazonit]

sorry no i did not run ok with the fuel pipe in the glass ill have another look tomorow and let you know how i get on

[dazonit]

Help please
Well go it to fire up but Ideling very rough and will not rev at all any ideas
Cleaned the banjo filter and still the same
Cheers

[Simon Jones]

Might be worth changing main fuel filter and prime it with some injector cleaner. Are you getting any smoke out the exhaust, and if so, what colour? Also have have checked for leaks around the injector pump? If you've got fuel leaking around the pump then you will also be sucking in air which will mess up the mixture. Finally, have you checked the air intake ducting and filter? It sounds like the engine is being starved of fuel or air.

[dazonit]

the air intake is fine there is white smoke from the exhaust there looks to be fuel around the very top of the pump will take a pic tomorow and post
thank for your advise

[Simon Jones]

How's your coolant level? White smoke can occur when it's damp, low compression or be a sign of water/coolant in the combustion process. It can also indicate unburnt fuel: http://www.costeffective.com.au/news_show.php?StoryId=9

[dazonit]

coolant level is fine i think the smoke is unburnt fuel as even on full throtle it will not rev all i can think is its down to the fuel pump or the seals in the pump