Hole started with a center punch, about to pilot drilled:
Holes drilled with a letter "R" bit:
1/8" 27TPI tap:
Installed:
Wednesday, January 25, 2012
External oil return fittings
Here I drilled and tapped for the external return line fittings on the lower case. The other end of the lines starts at the heads; instead of returning the oil from the heads to the case through a passage in the cylinder wall, it will now return via oil lines which will allow the oil to remain 20-30* cooler than the OEM set up.
Hole started with a center punch, about to pilot drilled:
Holes drilled with a letter "R" bit:
1/8" 27TPI tap:
Installed:
Hole started with a center punch, about to pilot drilled:
Holes drilled with a letter "R" bit:
1/8" 27TPI tap:
Installed:
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Hi Brad, I'm considering doing an external oil lines mod on a bike I'm working on. I am actually taking an oil cooler out of the loop. I'd really appreciate it if you could tell me where or how you got the info that says you'll run 20-30 degrees cooler using your external oil lines rather than internal.
ReplyDeleteThanks, great build by the way.