smokey diesel

markl813 · Feb 8, 2009

i own a serise 111 2.25 diesel after a few miles it blew out a dreadful amount of grey smoke for about 10
seconds then stopped and seemed to run fine.After this i changed the fuel filter and cleaned the air filter
all seamed fine then done the same the other day it only happens when the engine is warm any help welcome:doh:

CharlesY · Feb 8, 2009

Make sure you don't have water in your fuel tank.

You may need to drain the tank right out to be sure.

If you want to be sure about stopping water you can fit an in-line fuel filter thing with a glass bowl water separator, and you can see the water as it gathers. Then you open a little tap and let the water run out. Job Done.

If water is getting in, the diesel fuel will absorb a little (up to about 1% or so) but any more will gather, and if it comes through the system in a dollop it can cause the symptoms you describe.

Eventually water in the fuel will cause corrosion in the injection pump and the injectors.

CharlesY

markl813 · Feb 8, 2009

many thanks thiswas the way i was thinking also maybe injectors

CharlesY · Feb 8, 2009

markl813 said:
many thanks thiswas the way i was thinking also maybe injectors

If it was an injector problem it would be a problem all the time.

The fact that it comes in fits and starts suggests it is coming through in the fuel, and about the only thing other than diesel it can be is water.

Check your tank for a drain plug, BUT if it looks all rusty and stuck don't try it. Try taking the outlet pipe off your lift pump, attach a hose, and hand-pump a few litres into a plastic bottle. You might see water, BUT, it may only be picking up water during driving while a puddle of water sloshes around the bottom of the tank, and every so often the pickup pipe gets a little of it, and sends it through.

Pumping all the fuel out of the tank with a hose might get rid of it. You may be able to get at and open up the top of the tank to get access to pump it out.

When you find out what the cause is, let us know!

CharlesY

markl813 · Feb 9, 2009

CharlesY said:
If it was an injector problem it would be a problem all the time.

The fact that it comes in fits and starts suggests it is coming through in the fuel, and about the only thing other than diesel it can be is water.

Check your tank for a drain plug, BUT if it looks all rusty and stuck don't try it. Try taking the outlet pipe off your lift pump, attach a hose, and hand-pump a few litres into a plastic bottle. You might see water, BUT, it may only be picking up water during driving while a puddle of water sloshes around the bottom of the tank, and every so often the pickup pipe gets a little of it, and sends it through.

Pumping all the fuel out of the tank with a hose might get rid of it. You may be able to get at and open up the top of the tank to get access to pump it out.

When you find out what the cause is, let us know!

CharlesY

many thanks i was thinking on these lines but always good to hear others opinions i will try to get to it this weekend all being well many thanks for your advice

CharlesY · Feb 9, 2009

markl813 said:
many thanks i was thinking on these lines but always good to hear others opinions i will try to get to it this weekend all being well many thanks for your advice

Please let us know what you find in the tank.
It's how we all gain experience.

CharlesY

markl813 · Feb 15, 2009

CharlesY said:
Please let us know what you find in the tank.
It's how we all gain experience.

CharlesY

drained the tank no sign of water in it. found oil in the inlet manifold looks like this comes from the breather on top of rocker cover now cleaned breather will see how it goes

markl813 · Feb 21, 2009

markl813 said:
drained the tank no sign of water in it. found oil in the inlet manifold looks like this comes from the breather on top of rocker cover now cleaned breather will see how it goes

changed oil took off air filter ran it for just over one hour no problems not sure now will have to see if it dose it again:doh:

smokey diesel

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