Re: Stopping oil blow-by
Blow by is caused by pressurized air leaking past piston rings and valves. That air pressure builds up in the crank case. Now under normal conditions there is little air leaking past the valve and rings. What does, is evacuated through the PCV system. When more air pressure builds up than the PCV system can deal with, ventilates through the breather. As an engine wears out, more air is able to leak past rings and valves, causing more air to evacuate through the breather. Now so much air is blowing out the breather with more force, that it picks up droplets of oil with it. This in turn soaks down the filters and eventually gums up the carb or throttle body. If the PCV system is working properly, then its time for a rebuild. At least a head job and re-ring it. Once you've gone that far, you might as well rebuild it though.
What I did to buy time until I could rebuild my engine was to take a bicycle water bottle and drill a bigger through hole in the nipple. I then drilled several smaller holes in the cap for air to escape. I then placed a large wadding of course steel wool in the bottle and ran the breather hose from the valve cover to the bottle and stuffed the hose over the nipple. Now the bottle will catch the oil and air is able to vent through the small holes in the cap. I also mounted bottle carrier to my core support. Then I just had to pop the cap off and empty the bottle every now and again. Something to think about.
Eric R. Tachell