oil coming out from the dipstick?

[Olivier]

Not for me but a poster in another forum beleive his ring are gummed as when he accelarate hard, apparently he's left with 2 litres of oil on the engine bay and the dipstick is partially out?
Any imputs?
Cheers.
Same car as mine, E300TD , 1997.

 

[Smiley]

sounds like too much crankcase pressure. Could be rings could also be blocked breather.

 

[Olivier]

Apparently the OP in the other post said the breather is fine, no blockage there. Any idea how to sort this out?
Cheers.
Olivier

 

[Smiley]

Do a compression test would be a good start to confirm diagnosis.

 

[BlackC55]

Sounds like crankcase compression due to worn rings.

 

[Olivier]

Well, this is what the OP was thinking with gummed rings. Is there anything to be done to ""Un""gummed it?

 

[BlackC55]

Use some engine flush, but I doubt it will help.

 

[spock500]

take a peek here

http://www.mbclub.co.uk/forums/showthread.php?t=65708

 

[Uberwagon]

When we had this on engines which ran at low load for long periods there were 3 ways we used to fix it.

On a very old engine which was due a rebuild, we would thrash it mercilessly, high load very quickly and then leave it there for a while. The sharp increase in piston temperature sometimes cleared it, sometimes not.

Diesel down the bores, do this with an empty sump, fill each cylinder with diesel, then drain by turning over the engine by hand to get most of the diesel out, then cranking over on the starter, obviously with the injectors out.

The last way was a strip and rebuild.

The first 2 ways are quite aggresive so follow with caution.

The breather system needs to be pretty much perfect and also it should return to the inlet so it provides a slight vacuum. Also the rocker cover needs removing for the breather to be checked properly.

Dave!

 

[Olivier]

Thank you all. I passed the link the the OP, hopefully he'll find something. Uberwagon, the sentence " ride it like you stole it" is good then

 

[oldcro]

Thank you all. I passed the link the the OP, hopefully he'll find something. Uberwagon, the sentence " ride it like you stole it" is good then

Or just pretend it's a hire car!

 

[Olivier]

Just push it to the limit

 

[Musher]

It's my car that has the problem.

I'd love to give it an Italian tune up giving it a good thrash to clear it, the trouble is any harsh acceleration will blow the entire contents of the sump out of the dipstick. If I block the dipstick hole up there's no telling what the pressure would do instead!

 

[Olivier]

Did the fortes not doing anything at all?
There was a guy once that was talking about seized marine engine as they were left too long during winter month, his solution was to put WD40 or any penetrating oil from the sparkplug ( glows / injectors ) and let it sit for 24 hours. Then try to turn the engine a bit and do it again with the WD40 for another 24 hrs. After this it was alll OK. Will that de gumm your rings?

 

[Musher]

Nothing has happened so far.

I've managed to borrow a compression tester now so I'm going to test all the pots and see which ones are poor and try soaking those overnight with diesel or maybe injector cleaner to see if that frees the rings. If it does work then I can do a proper flush and engine oil change.