Cannot see clearly because of smoke during cold start

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white exec
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Re: Cannot see clearly because of smoke during cold start

Post by white exec » 10 Oct 2018, 10:49

Cold idle of 800-900 I think is a tad slow, as several posts have said.
1000, maybe 1100, sounds better. Wouldn't go higher.

Wonder whether the injectors are in good shape?
How many miles on them, since last serviced (recommended something like every 60k miles)?
Have you hurled in 1:200 of diesel-clean (Wynn's, Miller's or 3CV) for a remedial pump/injector clean-up? Well worth doing.

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CPtje
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Re: Cannot see clearly because of smoke during cold start

Post by CPtje » 10 Oct 2018, 11:28

Guess the injectors have not been cleaned. It has about 80.000km so will try the dieselclean first. Maybe that will help.

Otherwise, is it possible to clean these injectors myself? Never took out an injector but guess there's a first time for everything.

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Re: Cannot see clearly because of smoke during cold start

Post by white exec » 10 Oct 2018, 11:59

Yes, try the dieselclean first. It can be surprisingly good - but try to get hold of one of those mentioned: Wynn's diesel fuel treatment, Miller's Diesel Power Plus, or the 3CV Diesel Treatment. These actually work.

Don't attempt work on injectors yourself. Removing them is not difficult, but you'll need an injector long-socket for this. IIRC it's a 27mm one for the XUD - but check. (If one of your injectors has a small electrical lead sprouting from it - not likely in your case, I think - then the long socket you get will need a clearance slot in its side. Otherwise, not.)

Most diesel specialists (go for a good Bosch Service Centre, if you can) have a fixed price for checking, refurbing and calibrating these injectors.

Get a set of new dished sealing washers at the same time. Refit and bleed off following the instructions in Haynes.

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Re: Cannot see clearly because of smoke during cold start

Post by Simple76 » 10 Oct 2018, 13:31

Injectors would be worthwhile having tested. If timing was out would smoke all the time .

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Re: Cannot see clearly because of smoke during cold start

Post by moizeau » 10 Oct 2018, 15:59

When it's warm if the idle returns to 800, then the stat is set fine. Also there should be a very small amount of free play in the cable when warm.

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Re: Cannot see clearly because of smoke during cold start

Post by moizeau » 11 Oct 2018, 22:40

Jim, I know you're back, please confirm the above, and welcome back