Maybe a quick check that the rocker spindles are oriented with the oil ports facing the correct way in the head (flats on spindle should face away from center of head for both intake and exhaust spindles). This can be checked just be removing the cover plates and poking a thing bit of wire with e tiny 90 hook on the end, feeling for where the oil feed hole is on the inside of spindle....should be facing away from center of head. Apparently this might seem counterintuitive having the spindle oil drilling opposite side from the rocker oil drilling to tappet head....but this is by design to require oil to be forced with pressure around rocker/spindle surface before getting into rocker to tappet head drilling....keeps pressure in the system better.
Yeah, I agree that is a good way to check for proper orientation of the rocker flat. But . . . I (we) had just put the valves and rockers in a few days prior (see the video) and I was pretty sure the flats were forward. Soooo, we pressurized the rockers and got good oil flow out of both ends of the rockers and decided it was OK. The general consensus is that my machinist's client expected to see a lot more oil when he did the same test. Thank you for watching and writing. F.
You need hardly any oil in a commando cylinder head In fact the dunstall racers had an inline 20 thou restrictor in the head oil feed line Hope this helps
I love when customer come with crazy ideas like this. I'm curious, do you charge customer for leaving bikes at your shop for extended periods of time? I have been wrestling with this question myself as I don't want the responsibility of storing their bikes for them until they finally decide to come pick them up.
Hi Rob, thanks for watching and thanks for commenting every now and then. Actually, no, I don't charge storage. Usually the client has a pretty good reason for not being able to pick up their bike, so if I have room available I just tell them leave it. But in the fall, winter, spring, when I get overwhelmed with folks wanting to get their bikes into the shop I will "press" a little bit anyone whose bike has been here too long. I'm retired, and run a home based, informal shop, and so I'm pretty easy going with picking up bikes and stuff. If I were a real business, or if leftover bikes were impacting my space, I just might be a bit more strict. Ride On! F.
