Low oil / Oil leak

[Nick]

I bet thats the problem then.
Nicks running the pipe straight from the block into the catch tank, instead of through the rocker cover seperator because i dont think his cam housing has the breather pipe connection on it (old 1200 carb cam housing?)

That's the setup. However, There is no Oil seperator inside the rocker cover ! And yes, it's the Old 1200 Cam housing. Are the 1600 and 1200 cam housings different ?

I don't have seperator at the crankcase either. Just a straight exit pipe.

[Adam]

Yeah there different.
As mikey said, the mpi cam housings have a breather connection(for that hose from the block), and the rocker cover then vents to the inlet/catch tank.
Youve got the block pipe going straight to the catch tank, which is why your getting a load of oil and crap chucked up into the tank.
It should be going into the cam housing........

[Adam]

Another pic :D
You can see the cam housing breather conneciton


Which makes any oil coming up the block pipe drip straight back into the head......
And then gases etc vent out of the rocker cover(via those small hoses on it)

Because youve got no cam housing connection, all the breather pipes contents are going striaght into your catch tank

[mikey14sr]

^^ thats the beasty, only like that on multipoint 1.4+1.6 engines.

[Nick]

Ahhhhhhhh crap !

Still doesn't explain why it's appearing all down the back of the block though... I don't think the catch tank has much oil in it.

[Adam]

Aye, it doesn't explain that.
But that pipe might be getting full with oil and leaking or something?
Get it up on stands and have a peek up behind the block.

[MC]

Any chance catch tank is full and building pressure in the pipe? Leaking at the base?

[Nick]

The Base connection was made by the chap who rebuilt my engine. It's fooking hard to see down behind there, but it appears to be a nasty looking bit of 90 degree thin metal pipe.

I'm guessing it's just causing too much pressure in the crankcase ?I'm going to make some fatter pipework and try and improve that connection. Also, i'm guessing too much crankcase pressure isn't going to be doing much good for the power output fom the engine ?

The tank shouldn't be full. i still havn't looked, but i don't think that's the problem - Judging by the amount of oil on the back/bottom of the engine and car !

[Ash]

I maybe able to help here....

I'll get a pic in a min, but I'm running a hose from the metal pipe (that I cut down) up round the inlet and into the cam box. Then I'm running one from the rocker cover to an oil catch tank with a breather.

EDIT:


You can see the 90deg hose just poking out behide the carb and the 45deg attached to the cam box, and then the U-bend on top to join the two. I'll try and find a better pic....

What your problem could also be is a leaking crank shaft seal. Mine is leaking atm on to the flywheel and then collecting both at the bottom and somehow making it's way along the starter motor....

[Nick]

I wouldn't say it's a leaking crank shaft seal personally. The oil seems to come from the back of the block down, and then it looks like it's dripping from the crank-seal area.

Oil leaks a complete pain in the **** unless everything is super clean !