Landrover Disc. 300 TDI - Black Smoke

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Tue 2 Jan 2007 15:17
Landrover Disc. 300 TDI - Black Smoke - DiscoveryDriver
My Discovery 300 tdi 1994, M reg has developed an engine fault which occurs at about 50-55 mph. Black, not blue nor white, smoke comes from the exhaust. I had injectors tested - they all tested at 170 bar which was low and this type you can't adjust, so I fitted a brand new set, but unfortunately I have this same fault. I have also replaced the air filter.

My engine does not use oil, and I am inclined to think it is a diesel problem.

Can anyone offer some suggestions?
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Tue 2 Jan 2007 15:35
Landrover Disc. 300 TDI - Black Smoke - M.M
Could it be a blockage in the inlet system? Have a look if a turbo inlet hose etc has gone soft and is collapsing. Intercoolers can block. Even a blocked silencer can do this.

Next I would think about an injector pump problem.

No chance the timing could have jumped??

Did it come on all of a sudden. Does it do it if revved on the drive or just under load when driving?

M.M
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Tue 2 Jan 2007 15:38
Landrover Disc. 300 TDI - Black Smoke - SGB
Inspect all of the flexible intercooler hoses. They have a habit of splitting, and letting the turbo boosted air out.
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Tue 2 Jan 2007 19:03
Landrover Disc. 300 TDI - Black Smoke - hm
Mate,

go to www.landyzone.co.uk

good bunch and veru helpful.
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Tue 2 Jan 2007 19:26
Landrover Disc. 300 TDI - Black Smoke - wayne1980
mate,
i work on these cracking vehicles all the time. i also help maintain 6 rally 300 tdi too. we tend to have a problem with the lower flexi hose coming away from the intercooler. i does sound like a fuel problem, does your still have the eegr valve on the turbo/mainfold? could some1 have adjusted your FIP incorrectly? also check the colour coded connections for your eegr valve should be mounted on the bulkhead somewhere. hope this helps
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