Thread: TD5 breather pressure

While some blow by is not unusual for those kilometers , if excessive, you may have to look at a rebuild in the not too distant future, however, if you can get someone to load up the engine a bit if its auto ( aka stall test ) , while you observe if the blow by reduces with the oil cap off. If it does , then don't stress too much as this means the rings are still able to seal under load, re: breather hose , check to see but its probably cracked with age and heat
Cheers

Originally Posted by Jazzman

Ok. I would like some constructive input into a strange issue I've got.


I've replaced my breather valve at the intake. I've also has to stick my cam access cover in with instant gasket.


If I take the oil filler cap off when the engine is idling I get pressure and mist out the top with a sound of air movement. I seem to have an oil leak from the breather hose that gets passed the hose clamp on top of the engine.
The motor had done 300k kms. Should I be concerned and if so why and what can I do to fix it?

No dont stress just yet in my opinion dont make work for your self

After eliminating all other causes, [ blockage in crankcase breather hose, etc, simple things first] you can do a compression test on cylinders 1-4 after removing the glow plugs [ no glow plug on cylinder 5] I think 20 + bar is what you want, but don't quote me on that. This is an example of bad blow by, Bob


[ame]https://youtu.be/UgmYvMoxyJo[/ame]

I just compared my blow with the linked video bob10 posted. Mine is not quite as bad as in the video, but it is similar. I've taken video footage with my phone, 1 - idle (approx. 75% of blow in video) 2 - in Park at approx. 3500rpm (no blow) 3 - in Drive stalled approx. 2000rpm (blow reduces by about 1/3)

I'll see if I can convert the video as the are approx. 20Mb each.

Thanks for your input everyone.

See previous post for video footage. Can I get away with running thicker oil for a while? I'm using 10W 40 currently.

No... Thicker oil can do damage...

Originally Posted by Tombie

No... Thicker oil can do damage...

I thought there might be a problem running thicker oil through the turbo.

But what would I cause damage to running 10W50 for example?

Won't stop what you're trying to solve...