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smokey exhaust looks blueish
Posted: Thu Jul 22, 2010 1:15 pm
by tomheaney99
hi,
bongo seems quite smokey, ok when cruising however pulling away at roundabouts or increasing revs there seems more than normal amount of smoke. It has a bluey tinge to it however been checking the oil and no obvious loss?
sometimes the turbo doesnt kick in on rare occasions too.
I have had a coolant leak yesterday (a corroded pipe burst) and it is getting changed tomorrow. I did want to change the thermostat but couldnt get one till next week.
any ideas about smokey exhaust? stagges to check?
tom
Re: smokey exhaust looks blueish
Posted: Thu Jul 22, 2010 1:24 pm
by Northern Bongolow
what oil have you got in it please.
Re: smokey exhaust looks blueish
Posted: Thu Jul 22, 2010 1:45 pm
by tomheaney99
no idea mate, the garage did a full service and changed the oil?
tom
Re: smokey exhaust looks blueish
Posted: Thu Jul 22, 2010 1:54 pm
by tomheaney99
the garage said it would have been 5w 30?
Re: smokey exhaust looks blueish
Posted: Thu Jul 22, 2010 2:06 pm
by Northern Bongolow
thanks for that.
im just trying to see what peeps are using,and if it chucks up certain faults.
should be good with that in.
Re: smokey exhaust looks blueish
Posted: Thu Jul 22, 2010 3:23 pm
by missfixit70
I know you said it's blue tinged but could it be the egr not working properly, FAQ here explains all -
http://www.igmaynard.co.uk/bongo/forum/ ... 43&t=14463 Blanking plates avaiable from Allans in Plymouth
Re: smokey exhaust looks blueish
Posted: Sun Jul 25, 2010 5:58 pm
by tomheaney99
Had the egr blanked off :/
Re: smokey exhaust looks blueish
Posted: Mon Jul 26, 2010 7:53 am
by Tripewriter
Blue smoke indicates a lack of air therefore incomplete combustion or engine oil entering the combustion cycle
Has the garage used a cheap air filter?
Otherwise the answers get more complex.
However All diesels smoke but sometimes the smoke isn't visible due to atmospheric conditions.
Dont judge the smoke factor at anything other than normal running temp say after half an hour of continuous running, and perhaps get a specialist to give you an opinion.
Re: smokey exhaust looks blueish
Posted: Sun Aug 08, 2010 9:29 pm
by tomheaney99
cheers for that
ive been looking at it more and it smokes when it revs above 2k revs. the back of the bongo soots up too. and if i do kick down... well theres dark rain clouds form

.
i am now thinking turbo>?
tom
Re: smokey exhaust looks blueish
Posted: Sun Aug 08, 2010 9:41 pm
by mister munkey
Mines had similar symptoms, plus its been getting through about a litre of oil every 1500 miles or so.
Turns out to be worn piston rings.
Re: smokey exhaust looks blueish
Posted: Sun Aug 08, 2010 9:42 pm
by Northern Bongolow
the turbo kicks in at 1900 -2000 revs so maybe your on to it,if it has an internal oil leak then you may be burning a little.
Re: smokey exhaust looks blueish
Posted: Sun Aug 08, 2010 10:04 pm
by missfixit70
Blue smoke is typical of worn piston rings TBH, but it could be the turbo, chances are it's just more load as you boot it, compression test?