QUOTE(JOE M @ Sep 4 2009, 03:39 PM)
Apparently my crankcase is presureized.I have steam coming out of my breather and if I remove my oil cap there is steam coming out of there also. What causes this and what can I do to fix it? I recently installed new piston rings but other than that Im not sure what I have done that could cause this. It was like that prior to installing the new rings. Also if I leave it as is what could happen?
Thanks Joe M.
Joe,
Do you have head breather hoses?
Where are they connected?
You have naturally occurring air pressure both above and below the piston on any motor. Its ok.
Steam could easily be water in the oil...you have not driven it enough to burn off all the water that settles in engines...just a simple fact.
So,
Where do the head breather hoses hook up?
You need to relieve the pressure from both the heads and the crankcase on these motors or it builds up so fast it just blows out oil seals.
Currently you are using the little filter to let the gases escape...it keeps the oil film in (most of it)
If you hooked up the head breathers to that same setup you have created more pressure in an area that should not experience that type of pressure.
You need an oil breather setup like this one.
http://www.cbperformance.com/catalog.asp?ProductID=238That is designed to take one hose from each head and one from the oil fill section.
It is designed to vent the gases and pressure while allowing the oil to convert from mist and foam back into oil and drain back into the oil filler system.
Rich