Thread: What is this ?

Oil separator, part of the emissions system.

Originally Posted by Fusion

Hi Guys , Just wanting to know what this does and how can you stop it from leaking oil ? seems to be leaking a fair bit as the side of the engine is covered with fresh oil . Help please .

Hi
Oil Seperator as has been mentioned before.
Low $$$ answer ....
If you remove the unit, there is an O ring block seal that has probably gone hard.
Replacing this should do the trick.
High $$$ answer ....
If the engine is high K's, it may be a sign of excessive piston blowby.
(high compression sump)

Cheers
Dave
South Oz

I'm guessing it's the O ring as the engine does not blow any oil smoke while running and not pressure coming out of the oil cap when off . will have a look tomorrow . Degreased the engine so i could keep an eye on it to see how much is leaking .

Hi Fusion,

Even a new standard o-ring will probably still leak - they're too small to give a good seal. If you can find a friendly mechanic with an o-ring 'grab kit' try to find one the same diameter but thicker in section, so it's a firm push fit without cutting the o-ring. Or just put a bit of silicone on the spigot after cleaning the spigot and hole...

Also, the drain hose back to sump and the vent pipe onto the tappet cover just forward of this oil separator deteriorate with age and can be difficult to keep sealed. Replacements are not too expensive from the usual good suppliers.

Ian

Mick
how timely I have just replaced mine, it was the O ring,
for a replacement I took the separator and the old O ring to the best local bearing and O ring place around here, ( these blokes use micrometers not guessometers) they even sell landrover hub seals.
Got the right one, a bit of oil on it and it just popped into its hole and to make sure a put a little wipe of nonhardening permatex on the flat bit. Now no more leaks.

Cost of O ring $1.50.


john