Smokin Patrol

[Peter Connan]

"whispers" real trucks are what get hooked behind locomotives...

[ricster]

diesel locomotives....

[Stefaansie]

Eish!

Oooh, heh eh!

[caz]

If a diesel burnes engine oil it actually makes power and runs away. i have a marinised merc diesel in my boat and in the in the boat the motor is more upright. Its slanted in the car and at high revs oil was pooling in the head, the rockers atomised the oil into a mist which got into the breather system and the motor made a lot of smoke but also ran away even with the throttle closed.
You may have had a mild case of the same IE some pooling of oil in the head due to the incline which was been smacked about by the rockers and some of the oil mist injested into the breather system. Nothing to worry about.
As for the petrol patrols, we still in good shape as long as the arabs keep pumping oil. :biggrin My patrol now has a name......Brutus

[tour de frans]

Goeie Dag
1ste- ek sou nie bekommerd wees oor die blou rook wat jy gesien het nie. Veral nie omdat jou kar nou nomaal ry nie.
Ek stem saam met Cedric wat hy se oor die valve seels en of die angle wat jy gery het.
As jy teen "kompressie ry of sak" met n diesel is daar n vacuum in die inlaat. Al het hy nie n butterfly nie. Dis reg wat Bruinbeer se, maar daar is tog n laer druk in die inlaat.
Dit sal help dat olie verby seels en ringe kom. Die lugfilter bied n weerstand, veral n turbo met intercooler. Dit alles bied n weerstand vir die lug om vry te vloei. Dis min maar tog daar.
Veronderstel jou engine het n jacobs gehad. Hulle boost bult af in rat sonder enige throttle.

[caz]

Hi Guys.... I am not guessing here. For the valve stem seals to be the cause they have to be missing as in not installed at all . The oil in the head normally drains back to the sump via gravity through the pushrod holes and dedicated passages. When the engine is operated for any length of time at an angle either in the pitch or roll the oil does not drain as designed and there is excess oil in the head which is vapourised by the rockers causing an oil mist in the head which is sucked into the breather system and is evident by the blue exhaust smoke.
As I said I had the same problem on my boat motor and I am limited to 2000 rpm as any higher revs causes the exact same thing as the oil begins to accumulate in the head and the vapour is injested in the no 1 and 4 cylinders and she begins to smoke badly. I disconnected the breather and can rev to 3600 wit no smoke. As I said the motor is mounted upright in the boat but is designed to run in a slanted position in the car so I am operating the engine at an angle all the time. .The motor is brand new so the valve stem seals are out of the equation. I did a lot of research on this and prooved the cause.

[Stefaansie]

Thanks guys,

I appreciate all the input. Unfortunately I have very little knowledge of the workings of the diesel motor, so, what Caz and Frans says, both makes sense.

Bottom line is that I dont have to worry, right?

If I do Sani or similar again I can try and do a little test by disconnecting the breather pipe and see what happens.

Regards,

André

[SRXy]

Any chance this could have been some oil blown through that had collected in the Intercooler?

[Grant]

Andre,

Do not worry to mutch. Check the oil level and air filter. You drive a real truck truck with the best available turbo set up on it. These engines only run in at 300k km.

[ricster]

That is a distinct pissabolity Wes.......