Smoky start

I have a 1987 90 with a 2.5 turbodiesel engine. On early morning starts the exhaust shows a moderate amount of (what looks like) oil smoke. The exhaust clears after a short while and remains clear under all types of driving, which I think might exclude the turbo from being the root cause. Warm starts only show a very small puff of whitish smoke which clears very quickly. Oil consumption is what you might expect from a well cared for older engine - that is some but not lots.

Not being a long time owner I don't know what is "normal". Any ideas of the cause would be greatly appreciated.

Russ

Reply to
Demon News
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On or around Tue, 1 Feb 2005 19:02:48 -0000, "Demon News" enlightened us thusly:

probably diesel smoke, though, from incomplete combustion with a cold engine. 's common enough on old diesels.

Reply to
Austin Shackles

I asked the same question about six months ago with respect to my tdi 300. Consensus seemed to be that it is normal and not to worry. Right enough, it doesn't seem to have got any worse or caused any problems, and the (land rover specialist) garage have serviced it a couple of times since and not commented that it was out of the ordinary.

Relax!

M.

Reply to
McBad

Grand! I will ignore it. It seems to tick along nicely anyhow. Thanks

Russ

Reply to
Demon News

The puff of black smoke from from 200 and 300 Tdi's is due to a brief patch of low pressure in the induction system leading to incomplete combustion, and indeed is normal. The old 2.5 Diesel's dont have this "feature". However, a couple of seconds of "oily" smoke on start up is not uncommon due to hardened valve guide seals, and as such is nothing to worry about either, just keep an eye on.

Richard

Reply to
beamendsltd

My initial reaction was the valve stem seals. I will keep an eye on this.

Thanks, Russ

Reply to
Demon News

I rebuilt my 2.5 n/a, and it still has a brief smoke when you start it. When it smokes all the time, and you find yourself leaving a smokescreen behind - then its time to start thinking about doing something!

Reply to
Tom Woods

My 110 TD5 smokes noticeable for about 10 miles, until the thermostat reaches its half-way mark. Then it is ok.

Reply to
Uli

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