Club 80-90 Forums

Ok , since i changed the engine oil and filter in the LT ( non turbo 6 cyl diesel) , I've noticed (and others) that its producing black smoke , not loads but enough to notice. Valvoline oil 10-40 and bosch filter.
I thought it was the injectors at first so replaced them with newly rebuilt ones , still doing it , no better no worse.
I also notice that a glow plug was leaking around the top seal , replaced that and still no better
Air filter is a new MANN one , just replaced , no better , even ran it for a mile without a filter , again no better.

Now there is no power loss and fuel efficiency is still good . Been to Malton and back this weekend no oil loss and its not over filled.
It tends to be doing under load , but not all the time .

Spoke to a few at the weekend and James mention that the oil I used could be at fault ...

Any help on this greatfully received

Hello Dad,

I can't speak from experience as I've never suffered from black smoke.

Taking a look at this http://www.uniteddiesel.co.uk/diesel-engine-smoke.php suggests it may be a pump issue.

Is the wire going to your fuel cut off solenoid in a good state?

Ringo

When I had a similar issue Mark, it was the timing

Hi Son
I had a read of that yesterday. I hope it is the pump on its way out £££££
I'll have a look at the wire
Steve mentioned the breather pipe as well , i did look at that but it looked ok ...

BigTam wrote:When I had a similar issue Mark, it was the timing

I'll check that as well .. Thanks Tom

Give me a shout if you need my timing kit or want me to pop up at the weekend.

Ringo

ringo wrote:Give me a shout if you need my timing kit or want me to pop up at the weekend.

Ringo

Cheers Richard
Its really puzzling me , it was fine up to the oil change ...
Any idea's on how much the pump will cost to have reconned ??

Nottingham Deisel specialists want £250 just to put it on the bench - so its not cheap.

Probably coincidence with the oil change - but if its worrying you change the oil?

Give Grumpy Midget a shout - im sure he mentioned someone did his pump for a reasonable price....

I'd start with the basics first though...

Ringo

going to change the oil , just for peace of mind , probably wont do anything but won't hurt ..
The new oil is 10-40 , never use that before , usually it 15-40 ...

Hi,Ya Son!!!
Hope yer feeling well, I did notice a slight obnoxios clouud of the Black stuff when I was following you, But I put it down to an old engine, meaning in Diesel miles, only really did it when you tried to Boot it, is 60-65 mph your max,speed.???. Really did notice. it really does Roll on the bends doesn,t it Lol!!
When Diesels Smoke and no loss of power does mean the Pump seals/or Pump timming. But on saying that when its Timming the Pump gives out a real niosy rattling sound.
Just to add about oil. I use Valvoline 10/40 all year normally drop oil 2x a year and only 1 oil filter

The only time i worry is when you see some one who,s following you they are 3-4 car lengths behind yer tailgate.

Then you know your blowing Crap outa back end---------------------

Cheers Geoff , Its an odd one as its not doing all the time.
60-65 !!! was I really going that fast , the speedo cable is broken

It will/has been up to 75 but the fuel disappears mighty quickly at that speed and the noise level is some what loud
I normally sit at 55 which is comfortable and the fuel consumption is good , was only doing 65 cos we needed to get home

I did notice on one of the long climbs that the temp needle did go up a little more than normal ..
Will do the oil this weekend and see if it make any difference

Black smoke normally means excess diesel being pumped and not being burnt efficiently so it's a pump thing I'm afraid nowt to do with oil that would be a blue/purple haze not the good kind.

Try putting a bit of redex through it firstly before going to any major expense and maybe a quick thrashing(I know its hard to imagine) to try and clean out the engine put a bit see if that helps.

Cheers Phil

armyphil wrote: and maybe a quick thrashing(I know its hard to imagine) to try and clean out the engine put a bit see if that helps.

Hee hee. I dare say he's tried that already Phil

Ringo

I'v used this stuff http://www.forteuk.co.uk/product.php?id ... _Treatment" onclick="window.open(this.href);return false; loads on diesels that fail a smoke test.Remove the filter, drain and fill up with forte, add the rest to the tank, start up and let it run for few mins then give it a good blast, always worked for me..