It's glued in.
Thanks for watching my video.
(as they seem to say at the end of the clips my daughter watches on unboxing toys) .
It's glued in.
Thanks for watching my video.
(as they seem to say at the end of the clips my daughter watches on unboxing toys) .
Don't you look at my accountant.
He's the only one I've got.
He's signed a non- disclosure agreement. There are two patents pending. We're waiting for the share issue to come out.
His Iwi won't release it. The camera has broken. You guys on here have been nasty to me and I won't tell you.
KTM are watching....
Pick one - or come up with your own reason, LOL. He'll tell us when he's ready.
Grumph, you are getting old and cynical like me
I haven't got the knees to be as cynical as you, LOL.
OK, now we see how it's done. Any positive locking ideas for the four retaining screws ? Will the "bearing caps" have closed ends to retain the pin endwise ?
CNC has made this sort of thing much more feasible. I wouldn't like to do it without.
Ok that's clever. Not easy to machine I would have thought but it only needs to be super square not super smooth.
Don't you look at my accountant.
He's the only one I've got.
My phone does do emojis but for some reason won't put them up on Kiwi Biker. Main house computer will, first world problem I guess.
First thought: KISS! If it works for con rods, it ought to work for pistons. Second thought: those con rods are oil-cooled steel (or they're in low-revving outboard engines); this piston is combustion-heated light-alloy. Won't the bolts be ripped out? And how do you prevent them from unscrewing? It'll be a bit too hot there for Loctite.
I don't want to sound negative; I want this to work, preferably at astronomical piston speeds .
What is the difference in expansion between titanium and aluminium? - probably not as much as steel and aluminium??
I seem to remember a manufacturer trying a two piece piston - ie the outer part consisting of the piston crown and skirt (all one piece) and the other part consisting of a simple bracket basically the same as the normal pin supports inside a normal piston, c/w with normal (complete) gudgeon pin holes this assembly being bolted to the head and seperate from the skirt. - camming may then be unnecessary?
So I guess the small end assembly will be fitted up first to the bracket (the bolts to attach it to the head will somehow need to be made accessible to an Allen key) and there are lots of different methods of preventing bolts from loosening.
I could be talking utter shit of course, but thought I'd give it a go just the same!
- I'm not really sure if it was Montesa - Maico? but it began with 'M' I think ....... don't know what became of it and I can't find any info on it as yet! ....... Husa?
Astronomical piston speeds huh? - not another 30,000 job I hope! ...... guess then you won't be looking at a long stroke or even a long rod then!
Strokers Galore!
Well, the McCulloch kart engines used two quarter inch capscrews into alloy rods at the big end without major problems. As do millions of industrial engines.
Personally, I'd do inserts in the piston to increase the thread engagement area.
I'd probably also either use hex head screws - or grind flats on round capscrews - to use a steel strip between the heads, bent up as a positive lock.
A lot of industrial engines use hex headed big end screws with a bent up steel lockplate.
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