
Originally Posted by
mbeach
Wait a minute...
3 piston rings, top to bottom
Compression
Compression
Oil Control/scraper
Crank case
Why exactly does oil need to drain through a hole in the piston/ring land in order for it to be returned to the crank case -shouldn't it drain down there on it's own with every downstroke of the piston?
That is what I thought initially, but my research into this subject turned up this interesting NASA report that addresses this issue ( albeit a different engine)
This is a good read.Especially pages 4,5&6.
http://naca.larc.nasa.gov/reports/19...ge00000004.gif
Neither ordinary or extraordinary, just indefatigable.
2000 VX Green Dragon- Chick Demagnitizer-Supercharger-Injen Intake- Cold air box-K&N- Power Vault SS Exhaust-265-75-16 BFG MT kms-On Board CO2- Custom Boulder Bars- Custom Skid plates- PIAA 520 Fog Lites-3inch lift with OME 912 Springs-LINE X Bedliner on Cladding & Hood Insert-ARB Front Lockers & Custom Bull Bar. Vintage Offenhauser Hood scoop Thule Rack. XM Radio-Custom Storage Box-First VX to surmount the RUBICON.Thanks Sierra Stompers