ESE's works engine tuner

[jonny quest]

So who's going to draw up a 3d rendering?

I had thought about drilling holes to lubricate rings like is shown, I guess I'd consider the crankcase oil still a consumable then.

[mr bucketracer]

We have to do this. They wan't us to come down, secretly I think they are confident they are going to give us the learn ..... LOL.

i get the feeling to

[Grumph]

Unfortunately things conspired against Kel and he was unable to make the trip.

I saw this KE125 engine in the back of a van and was told it was heading north for Kel's water cooled project.

I sure hope he has his new bike ready and can make the trip with me next year as I will be taking a van and have room for an extra bike or two. Kel and Chambers could both send their bikes in the van with me and fly down for the week ends racing.

Thank you for that Rob - Now i don't have to PM Kel to confirm it was handed over......Sorry i missed you.

[Yow Ling]

Roger will be staying for a few days in hospital, he has a few sore bits that will take a little while to fix

[mr bucketracer]

Roger will be staying for a few days in hospital, he has a few sore bits that will take a little while to fix

hope he gets well soon , its the youth coming out in him (-; , forgets he's in his ...will say no more lol

[Askor]

Attachment 316638

And of course what would have to be my favorite, a Suzuki GP125 in fairly standard trim.

Wooo my spare bucket was the favourite

Edit: Ridden by Autech on here

Roger will be staying for a few days in hospital, he has a few sore bits that will take a little while to fix

I got his crash on video, I'll have to upload it

[Askor]

https://www.youtube.com/watch?v=6KT4cJl6HYs

[JanBros]

thoughts about these ring pins ?

http://www.us1.cc/toppinpistonprocess.html

[d2t]

I've searched this thread pretty far back and I've only found a reference to a single patent application (which apparently is not the Ryger engine) so I don't know if this has been discussed already but today I came across something interesting. It's a patent application from 2007 that incorporates some of the features that have been speculated upon here. Has anyone seen this before?

http://www.google.com/patents/WO2007142512A1?cl=en
http://www.patfr.com/download/WO2007142512.pdf

I don't know if this is the original Ryger concept but it's interesting nonetheless.

[jasonu]

https://www.youtube.com/watch?v=6KT4cJl6HYs

Was there ice on the track or did him motor seize?

[Frits Overmars]

thoughts about these ring pins ? http://www.us1.cc/toppinpistonprocess.html

Fitting the pin from above, classic Yamaha-style, is what we do too. And we close the top of the pin hole by welding as well.

A hardened steel pin is pressed into the piston with a 6-ton press

They could use a 500-ton press for all I care, as long as they don't put the full force onto the pin. A 6 ton press fit will crack the ring land; 0,1 ton should be plenty.
And what about the void where the original ring peg used to be? In the video it is left open; that would be an invitation for deto.

[Bert]

https://www.youtube.com/watch?v=6KT4cJl6HYs

Was there ice on the track or did him motor seize?

Poor Roger. Heal up quick for the north islands.
Very strange accident - it will be interesting to here his side of things.

[Askor]

Apparently his motor seized

[mr bucketracer]

Apparently his motor seized

looks that way

[peewee]

Fitting the pin from above, classic Yamaha-style, is what we do too. And we close the top of the pin hole by welding as well.

frits ive never tried to weld a piston but im going to put it on my list of things to do real soon. just for fun and to see if it warps like they claim. i cant imagine it being more than three seconds to put a dab of weld in the pin hole. what do you make of the special welder they use that only heats the crown to 120* ? i thought aluminum melted at somewhere around 1100* or so

Unfortunately the welder can not be shown due to the fact that it is a custom made device and the secret to the whole operation. It can weld the piston never heating the crown over 120 degrees. Normal welders will warp the piston causing a disaster later. The top of the piston is then milled back to its original shape.