Crankcase Oil Squirters on 2005 ZX10
I cannot find any information on this issue, so I'm throwing a question out there to everyone who builds race engines for fun or profit...
I am reassembling my engine with the new forged pistons, Carrillo rods, bearings, etc. and just discovered that only one cylinder has an OPEN oil jet leading from the top half of the crankcase void above the bearing shell toward the piston! The other 3 cylinders are plugged with a solid fitting; no drilled hole in it at all.
It seems to me that every cylinder could benefit from improved small end pin lubrication and piston cooling, but I am reluctant to drill out the 3 solid plugs like the 4th unless someone more knowledgeable than me can tell me it's OK to do so.
OOPS - sorry: Gen 1 ZX-10R - I found a parts catalog on-line that has P/N 92062 orifice and it indeed shows it on only the cam end cylinder. The other 3 cylinders all have an allen plug, P/N 290. Does anyone know if this can be changed to allow oil spray to all 4 cylinders?
Thanks in advance guys!
Last edited by zx10racer; 01-15-2012 at 04:34 PM.
Reason: More information!