01-25-2011, 09:00 AM #1
05 vs 06+ rocker shafts. . . what size hole??
I'm putting together my motor. got a 06 short block and a 05 head that I rebuilt. My original engine was an 05. so, i know i cant use the oil pressure jet because it doesn't fit in the 06 block. i do know that the oil passage in the rocker shaft is what regulates oil flow on the newer skis. question is, how big is the 06+ hole, and can i drill out my 05 rocker shaft?
01-25-2011, 09:23 AM #2
01-25-2011, 09:26 AM #3
well that sux. do you know the sizes? Thanks!
01-25-2011, 09:30 AM #4
Can't remember exactly... but the 05 is around .200" and the 06+ is around .070"
01-25-2011, 09:31 AM #5
Is it an orifice or is the whole shaft drilled .070"?
01-25-2011, 09:35 AM #6
01-25-2011, 09:37 AM #7
I wonder if it could be tapped and a jet installed. . .
01-25-2011, 09:47 AM #8
I don't see why not? However... a new shaft is only like $100 bucks.
01-25-2011, 10:13 AM #9
- Join Date
- Sep 2009
I doubt it you could drill and tap it. I think it is pretty hard stuff. Of course, you could always JB weld one in, LOL! (please don't take this seriously....)
01-25-2011, 05:34 PM #10
- Join Date
- Aug 2009
- Discovery Bay, CA
If i understand your question right i drilled out my 08 rocker shaft for better oil up top over 8k.... 3.5mm hardened drill bit was like 25$ a pop and they break real easy, ask how i know
Dont quote me on that 3.5mm i cant remember exactly but i can measure it when i get home if you want
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