Thread: Urgent mechanical advice required!

Originally Posted by Blknight.aus

you'll find that most of us would have voted that way if your query had started thusishly........

Originally Posted by Blknight.aus

you'll find that most of us would have voted that way if your query had started thusishly........

Too right, mate!

If you go past hedland give us a shout I might be on days off.
I'd be mre than happy to shout you a few cold ones and listen to your adventures.

Dont forget Karajini on your way down. I think there are some pics in my album.
There are a few of us in Newman if you get in this way and need any assistance or just want to catch up for a beer.
CraigE

What could cause the breather to become blocked so badly? What would be the early signs of it becoming blocked? Is it a common problem?

Originally Posted by vnx205

What could cause the breather to become blocked so badly? What would be the early signs of it becoming blocked? Is it a common problem?

Hi vnx205

A history of short running and the fact that, all motors breath to some extent or other, residue is deposited and condenses where the motor is coolest, for example; under the rocker cover and in the 300TDi, also inside the oil separator / breather.

After a time without it being cleaned out ,that residue can become a near solid grey-black crud.

Oil changes to get rid of combustion by produces, done on a regular, but short time base, helps keep those places in the motor, clear of build up.

In the case of any diesel, combustion by produces contain carbon particles and if oil changes are left for an extended times, this carbon finds its way onto the cylinder walls and causes a polishing effect called glazing.

Glazing is a common problem with diesel Farm Tractors, that are used for long periods doing light duties, such as the feeding out. When used for heavy ploughing the oil consumption is high until that motor settles down again with wear, this can take up to a week of heavy work before the oil consumption drops back to a reasonable level.

Cheers Arthur

Common problem with the tdi and V8s. I was amazed what was in mine in the V8 when I cleaned them when I had the Rangie.

Originally Posted by wrinklearthur

Hi vnx205

A history of short running and the fact that, all motors breath to some extent or other, residue is deposited and condenses where the motor is coolest, for example; under the rocker cover and in the 300TDi, also inside the oil separator / breather.

After a time without it being cleaned out ,that residue can become a near solid grey-black crud.

Oil changes to get rid of combustion by produces, done on a regular, but short time base, helps keep those places in the motor, clear of build up.

In the case of any diesel, combustion by produces contain carbon particles and if oil changes are left for an extended times, this carbon finds its way onto the cylinder walls and causes a polishing effect called glazing.

Glazing is a common problem with diesel Farm Tractors, that are used for long periods doing light duties, such as the feeding out. When used for heavy ploughing the oil consumption is high until that motor settles down again with wear, this can take up to a week of heavy work before the oil consumption drops back to a reasonable level.

Cheers Arthur

IME the problem is more due to polymerised oil than soot.

We have been doing experiments with oil aging at the moment. If you place oil in an oven at ~100oC or slightly higher, and bubble air through it, it will start to turn brown and become more viscous.

The extreme case - as JC mentioned recently, is where you have to stick a screwdriver in the sump drain hole, or light a fire under the sump, so that the oil will drain!