Rolling the coal

[BigMonty]

Smoke my friends smoke.
On the way home from work this evening I came up behind middle Monty ( bmw z4) and his mate ( Toyota chaser). Both lowered beyond practicality and common sense.
Sniggering that they were doing 40 in a 60 limit as not to rip their sumps off, I decided to blast past them. We came round a sharp bend to a clear road so I planted it in second and hooned past the chimp chariots with the style only a 20 year old v70tdi can do.

It wasnt until they arrived at Montgomery towers ( much later) they proceed to show me the dash cam footage on their phones. All you see is a silver flash ( slight exaggeration). Followed by dense black smoke screen that any British secret service agent would be proud of.

Now then, my v70 doesn't smoke anymore than any other diesel I have had, and I certainly haven't noticed any under normal driving conditions.
No oil or water used in the past 5000 miles and is still purring like a kitten ( on 20 bensons a day), and does return 50+mpg.
So what's the problem? Do I need engine flush or some other cleaning product?
Or is it just how it is? Passed her emissions with flying colours a month or so ago.

[37 RUBY]

Originally Posted by BigMonty

Smoke my friends smoke.

All you see is a silver flash ( slight exaggeration). Followed by dense black smoke screen that any British secret service agent would be proud of.

So what's the problem?

It's what happens when you put anthracite on an open fire...

Are you sure them younger Monty's have not doctored the footage?...

Extra fuel = black smoke... Have you been tootling around and some excess fuel has been loitering in ones chambers sir. I say thrash the beast some more... Or see how the injectors are in case of wear causing overfuelling.

How many miles has the engine done?

[dingov70]

Hello there , might i ask , was the filming done after dark ? . Diesel smoke tends to look appalling when headlights shine through the clag . My V70 tdi gave small puff on hard acceleration , always fast passed it's MOT smoke test , but resembled a naval destroyers smoke screen at night . How about posting the video clip , then we could better judge your evil polluting ways ( kidding ) I also found that having bumbled about for a few days any vigorous pedal action would blow out the loose soot in the pipes .

[BorderVolvo]

Originally Posted by dingov70

Diesel smoke tends to look appalling when headlights shine through the clag .

This ^^

[BigMonty]

It was at night in the headlights.
Got to nip into town today to buy essentials ( beer and pizzas). I shall hit the loud pedal a few times and see what happens, she has done 200k so may have slightly worn injectors

[green van man]

Had it happen regularly with my V70 this, just a characteristic of the engine.
Plant the go peddle in 3rd and it naturally over fueled leaving a black cloud in the distance.

Old fitter once told me, you need a bit of black dmoke on a diesel under load to know it's working properly. Mind he was talking of natural aspirated transits at the time.

Don't think it's anything to worry over.

Paul.