Nater_Potater said:I had to go back and listen to the carbide bit when it first makes contact at 1:15 in the video. It makes me laugh/cringe, knowing that if it had been me running the lathe, I'd have been picking chunks of carbide out of my face when it made those kinds of sounds.
After watching poor SwooshDave's thread about the not-funny-oil-t24460.html, I think an oil pressure gauge would be a great addition for the unused head port as you suggested.
Nathan
Cheesy said:When I did mine I used a small ball end carbide bit with the lathe making scary turbine like noises as it got upto speed, then used compressed air to keep it cool while cutting. The hardening on mine is quite deep, over 1mm.
Brooking 850 said:Jim you say to do both inlet Vv shafts, is there any need to do the exhaust Vv shafts as well?
Regards Mike
DogT said:So who will do this for me and at what price? I've thought about this several times. It would be nice to get rid of that hose above the head.
It would have been worth that and the shipping to get mine done considering what I spent on a carbide centre bit and regular carbide twist bits. The centre bit did one shaft up to the bit's effective length but the regular bits would not touch the surface. In the end I had to admit defeat. Nice to see it done anyway.If you want to send them I will do them. How about $25.00. Jim
Keith1069 said:It would have been worth that and the shipping to get mine done considering what I spent on a carbide centre bit and regular carbide twist bits. The centre bit did one shaft up to the bit's effective length but the regular bits would not touch the surface. In the end I had to admit defeat. Nice to see it done anyway.If you want to send them I will do them. How about $25.00. Jim
J. M. Leadbeater said:Why?? Does not the existing system work well enough? In all my MANYyears I have never experienced or heard of a rocker seized on its shaft.
If you drill both inlet rocker shafts you can eliminate the hose that goes across the top of the head.
pete.v said:I can kind of see where JLM is coming from. Like, "what wrong with the old stuff" and " if it ain't broke, why fix it". It's neither a sin to think forward nor to keep old school in your heart.
Sure, he rattles on and sometime only light grazes the topic. But Troll? I don't think so. He's just old school. Not a sinner.
There may be some scary aspects to this mod like what do I use to block the left side of the head or maybe what if the left exhaust rocker gets a bit starved for oil. Maybe these fears are unrealistic, but they could certainly come to mind. That crossover pipe is pretty much obscured anyhow. As far as a pressure gauge goes, it is just a matter of the double banjo and another copper washer.
Anyhow, new ideas are cool to me and the next time I pull my spindles I may drill them....or maybe not.
Jim, if you get a bit backed up, feel free to PM me. I'll take some of that gravy. At 5 to 10 pairs an hour, that retirement sure comes into view. Believe you me, I have the equipment, tooling, and the skills for this one.
I hope I'm not out of line here, or am I over stepping my guest privileges.
I was thinking along the same lines, Nigel. I'll have to PM Jim, this is something that I have wanted to add to my bike ever since I heard about it. CjFast Eddie said:.........Keith, it might work out cheaper to just ask Jim to supply a new pair of spindles, pre drilled by him, and shipped to you... That's what I've done!
Now that would have been sensible but I have the 'Special ' Les Harris ones with BSF threads :lol: Don't want to spoil 'Originality'. :|Keith, it might work out cheaper to just ask Jim to supply a new pair of spindles, pre drilled by him, and shipped to you... That's what I've done!