ESE's works engine tuner

[WilDun]

What about a sux puk of pus in your frudge?

Now back to the Ryger...

Jason,Jason, - your first one may have been fun, but ...... you are now a country mile off the NZ accent and it's not funny anymore, so let it be please. -

[husaberg]

Now we know why the Interweb is not only a great resource its also bloody dangerous.

Its now simple to solve the Ryger technology issue and get all the info we need - send some large unfriendly people to this address.
Put pen and paper in the mans hand and threaten to remove his fingernails unless he cooperates.

Address:
Hengelosestraat 141
Post code: 7521 AA
Town: Enschede

It might be better to use a honey trap.

[NAR RG500]

Acetone ... its been a while so from memory, 500ml in 20L of avgas with Castrol R at 20:1. 1L tins or plastic bottles of Acetone can be brought at paint shops.

Cool thank you for that TZ, I will do some research.

Cheers

[m4r]

http://worldwide.espacenet.com/publi...C&locale=en_EP

seems kinda legit on a first view

can't wait to see the first home made valve rings

[ken seeber]

It seems you missed my TST-post by just 8 minutes, Ken .

Frits, the story of my life, so close yet so far. You young blokes are just so quick!!!!!

Rings at positions other than 6 o'clock. Earlier engines, typically the 3 port reed/rotaries ran the ring gap between the A & C port, at around 45 degrees (would this be 7.30 or 4.30, or perhaps more correctly 180 degrees, the exhaust port being the datum). To me this is bad as the top of the piston can rock for and aft along the thrust axis. They did have wide C ports admittedly. Assuming the ring stays in contact with the bore, the top of the piston is moving relative to the stationary ring. Depending on the ring positioning, this can lead to contact or hammering of the ring peg (or anti rotation pin) against the end of the ring. Not an ideal situation. IAME pistons on their X30 engine have them indexed around by around 30 degrees, to the 150 or 210 deg position. These pins sometimes do come out in service, with some inevitable sadness. In addition to what Frits has pointed out, the moral is obvious.

[peewee]

Let me start by explaining once more why the ring peg should be at the 6 0'clock position at all.
Each time the piston ring passes over the exhaust port, it bulges outward slightly, after which it is shoved back into its groove.
If the part of the ring to the left of the exhaust port does not have the same length as the part to the right of the port, this shoving will invoke an inclination of the ring to rotate in its groove; one end of the ring will constantly hammer against the ring peg. This may cause a burr on the ring end and/or it may work the peg loose.
The only way to prevent this is to put the peg diametrically opposite the exhaust port.

The C-port can be as wide as 40% of the bore, provided the peg is at the 6 o'clock position, so there is not more than 20% overhang of unsupported ring.
If the peg is off-center, even if the C-port width is not more than 40% of the bore, the ring overhang may become >20% on one side and we should be careful.

The ring will be thankful if you remove the sharp top and bottom edges on all ports. At the exhaust ports you can also apply a radius. But a radius at the transfer port edges has the negative effect that it will facilitate the inflow from spent combustion gases into the transfer ducts, so here we should restrict ourselves to a really small bevel.
Large diameter rings are more prone to problems because their radial depth is usually smaller in relation to their diameter, compared to small diameter rings.

frits it might also be worth mentioning that a small upside down radius can also be used on the bottom of C.

[F5 Dave]

Jason,Jason, - your first one may have been fun, but ...... you are now a country mile off the NZ accent and it's not funny anymore, so let it be please. -

Well he is an Aucklander so you have to excuse him. . . oh wait, this gets better.

[WilDun]

Well he is an Aucklander so you have to excuse him. . . oh wait, this gets better.

I beg your pardon Dave!

Accent thing's all sorted now - but that's more than can be said for this Ryger saga!- that Patent only gives us confirmation of an idea which most of us had in our heads anyway!

[husaberg]

http://www.kiwibiker.co.nz/forums/me...hp/48608-ryger

It appears his profile has been set to Made BOO BOO in Nappies I would say its a spam related misunderstanding I have reported it to Mr Trousers.

Thanks Husa.

Hello Frits
I Spoke to Mental Trousers he said the status was reset for Harry.
But I feel the issue is (as does Mr T) that Harry was not logging in to KB before he tried to look at the pictures
Ie when he was following the link the picture is unavailable without first logging in to KB as a user.
Neither of us know why he was set to Has made BOO BOO in Nappies, but likely someone ie one of the forum mods thought he was a spammer maybe as he tried to post multiple links or suchlike?
This setting is reserved for people who have misbehaved on KB in some way and the user is unable to post without a mod checking his post first and has other privileges removed which (might) include not being able to see pictures.

[TZ350]

Well I made it to the BOB battle of the buckets as spectator. Met up with YowLing, Budda and Lodgemz. The wind was a bit cold so I was very pleased to have a loan of one of YowLings windbreakers.

Buckets here is dominated by FXR150's heaps of those and very few 2T's.



Probably the fastest 100cc 2T in the paddock was DiesilPigs RGV100 but unfortunately it was having its issues with cylinder sealing.



There were a few TZR 50's and Lodgemz 70 racing with the main group of FXR's.



There was an MB100



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



The BOB got underway and had been running for a while when a rider fell and took a very bruising tumble. The red flags came out and things were held up for a while, while the ambo's did their job. Thankfully Lodgemz was all right, up and walking but taken away for observation as a precaution.

The last of the BOB was run in a shorter version of 15 laps which was basically a sprint race.

The front runner won by a country mile with a very fast and clean style. The scrapping was by the next three riders continuously swapping places, there was some very cunning and sometimes total brave moves being made. Great racing, and great to catch up with old friends.

A big thanks to YowLing for his hospitality, next year I am going to have the the Beast there, the BoB has to be one of those never to be missed meetings, that and Greymouth.

See you next year.

[mr bucketracer]

Well I made it to the BOB battle of the buckets as spectator. Met up with YowLing, Budda and Lodgemz. The wind was a bit cold so I was very pleased to have a loan of one of YowLings windbreakers.

Buckets here is dominated by FXR150's heaps of those and very few 2T's. Probably the fastest 100cc 2T in the paddock was DiesilPigs but unfortunately it was having its issues with cylinder sealing. There were a few TZR 50's and Lodgemz 70 racing with the main group of FXR's. There was an MB100 and of course what would have to be my favorite, a fairly standard Suzuki GP125.

The BOB got underway and had been running for a while when a rider fell and took a very bruising tumble. The red flags came out and things were held up for a while the ambo's did their job. Thankfully Lodgemz was all right, up and walking but taken away for observation as a precaution.

The last of the BOB was run in a shorter version of 15 laps which was basically a sprint race.

The front runner won by a country mile with a very fast and clean style. The scrapping was by the next three riders continuously swapping places, there was some very cunning and sometimes total brave moves being made. Great racing, and great to catch up with old friends.

how did kel go ?

[TZ350]

how did Kel go ?

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.

[mr bucketracer]

Unfortunately things conspired against Kel and he was unable to make the trip. But I sure hope he 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.

think more of us are having a crack next year so north out for the kill lol

[TZ350]

think more of us are having a crack next year so north out for the kill lol

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.

[Peter1962]

first post for me, but maybe I can shed some light...

Over at Pitlane someone mentioned that the developers actual name is HarRY GERrits or HarRY GERritsen and not Harry Ryger. Post was deleted rather quickly

That was posted by Bob van der Zijden, a dutch tuner.