Show me your breather box

[effvee]

Originally Posted by BeetleBug

I do not agree.

The stock T1 breather box is superior to both boxes mentioned in this thread. Basic math will tell you why. It does not matter what size your engine is. The stock box is, on the other hand, not race legal.

Opening the valve covers will only allow the oil a new way of escaping and nothing else. The pressure is not created there and that is why you should not vent there. The oil will always follow the easist route and if the oil is not allowed back to the case where it belongs via the usual 4 escape routes (your pushrod tubes) it will escape via your breather tube. Not good.

I stopped venting the valve covers some years ago and I have not experienced any issues at all. But then again I do make sure I vent where it is needed and where the pressure is created. Take a close look at this Pauter engine case and note where it breaths:



-BB-

Beetlebug, you have two post. Is this Pauter engine yours?
This engine is not a daily driver, what's your application? I think I'll stop here until I find this out.