Creepy

I had a discussion last night with the mechanic of our dealership over here. He is a very good engine builder (in European norms that is) and has build several road engines and rally spec engines for different customers.
He find that an oil catch tank is not necessary on a boxer engine wich is in a good state of is life (oil consumation of 0.2 litres on 5000 miles). The reason for this is that the throttle house and valve seals need a little oil fume for lubrification. When using an oil catch tank this lubrification is gone... And also, when that oil tank is rather quickly filled up, then you have a serious engine problem....

What is now the best way, tank or not ?

And if I want to use an oil catch tank, I have to make sure that the breather line is routed back into the induction side instead of dumping in open air...

Creepy

[Edited by Creepy - 11/2/2003 11:51:12 AM]

scoobyslut

If using the vehicle for normal usage, you dont require to alter any of the system, in fact why do so. Afterall, the manufacturers have designed it that way for a purpose, not wishing to sound nasty, but do you know any better than these guys?
Stick to how things are set up, then you get no problems.
Oil catch tanks are only fitted to engines specifically designed and modified to run in this manner. At least in standard format, if a problem occurs, the oil is simply pumped back into the system. When using a catch tank, it all goes into the tank, draining the engine and pumping it all out, as you would never be able to fit a tank large enough in th engine bay to catch it all.
Stick to touching in the stone chips on the bonnet, much more constructive..