White smoke from exhaust and oil filler (TD5)

petecbr · 22nd January 2016, 08:05 PM

Hi,

My 2000 Discovery 2 hit 200,000 Kms yesterday morning and was running fine. On the run home I was pushing a bit in the heat, I slowed down for a town and it started blowing white smoke. Engine ran and sounded OK but there was a huge cloud of white smoke and a loss of power. Removed the oil filler cap and there was white smoke there too. Drove on for a few Kms, but the smoke was real bad so called for a tow.

Looked at it again this evening and still blowing smoke. Removed the air intake at the manifold and at the turbo - the turbo impeller feels loose from side to side but still seems to spin OK. Is this right?

Starts easily, runs and sounds fine - no knocking or missing but still blowing white smoke from exhaust, oil breather and filler cap. No milky water in oil on the dipstick or filler cap. I'm thinking head gasket, exhaust valve or rings? Injector? I thought this would make it run rough though.

Now the dumb questions (worked on plenty of petrol engines but never a diesel before):
- How do you test compression on a diesel ?
- How can I test the injectors?
- What else should I check before tearing down the engine?

Any help will be greatly appreciated.

Thanks
Peter

**999** · 22nd January 2016, 09:09 PM

Did you check your turbo hoses? A Blown turbo hose will make you lose power and blow smoke.

Mine blew off the other morning, I knew it was a turbo hose straight away (sounds like the release of a compressed air hose) then no power and lots of smoke.

schuy1 · 22nd January 2016, 10:04 PM

There should be very minimal movement in the turbo vane, too much and the vanes will contact the housing, also that means the oil seals are gone which is a potential engine runaway! X 2 check the hoses. Unlikely its an injector or sudden loss of compression. Whats the coolant level ?
Cheers Scott

**strangy** · 23rd January 2016, 06:51 AM

Failed hoses cause black smoke.
White smoke is typically unburnt diesel or coolant.

**discorevy** · 23rd January 2016, 08:16 AM

If the smoke smells oily then I'd be looking at your turbo .

**rangieman** · 23rd January 2016, 08:22 AM

Checked your coolant lately is the coolant bottle pressurising

petecbr · 23rd January 2016, 09:06 AM

Coolant has dropped a little. When it first happened the coolant bottle was bubbling but the temperature was normal.

I have completely disconnected the intake from the inlet manifold and the turbo to isolate it from the problem.

Smoke does not smell like diesel or oil.

At this stage I think it is a head gasket.

**Nomad9** · 23rd January 2016, 09:55 AM

Hi Peterbr,
Brake fluid also burns white smoke as well if that is any help. As suggested smell the smoke without going overboard, this should give you a hint. I don't have much else to add after the other posts. Checking the compression isn't as easy as a petrol engine. Sounds like something is getting into the inlet manifold that shouldn't be there. Disconnect all the hoses connected to the manifold and check for fluids that shouldn't be there.

Cheers Marty.

**Slunnie** · 23rd January 2016, 10:48 AM

Originally Posted by petecbr

Coolant has dropped a little. When it first happened the coolant bottle was bubbling but the temperature was normal.

I have completely disconnected the intake from the inlet manifold and the turbo to isolate it from the problem.

Smoke does not smell like diesel or oil.

At this stage I think it is a head gasket.

That would be my guess too.

**discorevy** · 23rd January 2016, 02:43 PM

x3 ,bubbles in coolant tank is a sure sign , it will probably be pressurising above normal , also get someone to give it a rev and check for coolant out the exhaust

Thread: White smoke from exhaust and oil filler (TD5)

Thread Tools

White smoke from exhaust and oil filler (TD5)

Bookmarks

Bookmarks

Posting Permissions