Best Sound ever!!

Zitat

Original von Ziegenpfad
Hab die Dinger Mitte der 60er Jahre u.a. in Hockenheim live miterlebt.

Zweifellos die Hölle wenn die Motoren laufen, muß man einfach gehört haben!

@Ziegenpfad
Wie passt denn Mitte der 60er Jahre mit Deinem Geburtsdatum zusammen :D

Warum sagt jeder "das Ding", ich will den Namen

Zitat

Original von Racing Aprilia
Warum sagt jeder "das Ding", ich will den Namen

RA, das steht als Header über dem Video.
Im Video eine RC166, auf den 2 Motorbildern eine RC174.

Gruß
Carsten

:ooops: Übersehen

Danke

... ist ja nicht so, als hätte man keine hilfreichen Kollegen :biggrin:

Viel Spaß!
Carsten (Aachen-Germany)

"Hi Carsten,

I worked on the motor about 16 years ago. I remember reading about the Honda 250-6 in (I think) Cycle magazine where they showed the motor in a pictorial next to a coke can to show how small this thing is. I am a little hazy in what was written in the article, but I think it showed the crank with a broken con rod. I am sure I have that magazine around here somewhere. A couple of months later, the owner of this same bike called and wanted me to fix the thing. They wanted me to bring back the motor so it could be run again. A week later I had it in my shop and I started work on repairing the blown out cases. Upper was aluminum and the lower was pure magnesium. I finished the job up and I challenged anyone to find where I had done the repairs. The crank was sent to Italy for rework and later that year it was campaigned at various tracks around the planet. Soon after, the thing failed again. I got called in to look at the mess. The owner had a bunch of tuners and engineers (guys you would all know) sitting around a table trying to figure out what went wrong. The rod broke off and they suspected it was a poor rebuild or bad material. While the crew was looking at the crank and rod, I started looking in other places. I found that a $.25 E-clip popping off the wrist pin was the culprit. The original piston on that rod no longer existed, but the other 5 pistons showed they were ready to let go and one was ready to pop. The guys used an E-clip instead of a C-clip. The manufacturer replaced the parts with something different. The two ears on the E made the wrist pins beat them out, thus end of rod. Once that was repaired it ran great. No more crank failures until the valve bucket assembly was left loose when it was being tuned up. This caused major damage to the head when the assembly rotated and blew out the front of the head. Now, I needed to repair the damaged head and other various parts. Ports so small that you could not get your little finger in. I still don’t know where the valves came from and cast iron skull caps were also in this motor. Two weeks later it was done. I sent the thing back and it has been running ever since. I did take pictures of this thing but they are not digital, I would need to scan them. But below is a link to a motor. This may or may not be the motor I worked on. Don’t get me wrong, I do know which motor it is, but I won’t say J

http://www.cbxclub.com/davespage/250-6.html

I used to know the amount of bikes that Honda produced in the 250-6. I think it may have been 6. There still may be one missing. I can find out. Asking price 14 years ago for this bike was $675,000. Crank was built up assembly, press together was at the big end and 120 degree throws. Carbs, really small! Gearing, really close. Timing every so often. This information is confidential and if I told you, I would have to kill you. I hope you found this little story interesting.

Sincerely, ...

"... great story.

Here's a link about George Beale's work in creating his replica RC174
http://www.motorcyclistonline.…plica_racebike/index.html

It describes in detail the lengths they had to go to build the replica
engine. Carbs alone cost $35k/set. Honda supported his work but no
longer had most parts or drawings so an engine had to be disassembled
and measured.

After reading this I have a greater appreciation of your work in
getting a blown engine running again - twice!"

und noch viele mehr:

http://www.youtube.com/watch?v=hsXHfIMXabU

George Beals replica is a 297cc. The 250 was RC166 I believe, There is a guy in the Check Republic or close that builds a replica of a Honda RC181, Its 500 4cyl, I saw it when I was in Belgium at SPA last year, It is so good you cannot tell its not an original, It even had engine #RC181..... on the cases. The owner say,s it has about 100hp and sells for $40,000. Does anyone know something about this bike??

> http://www.youtube.com/watch?v=hsXHfIMXabU
> Another video. Wow that is loud and does sound cool. When he revs
> it, you can see what the article meant about the engine would just
> stop if you pull in clutch without gas.

The Crank had no webs,so no weight no inertia, Nobby said imagine 13 dominoes stuck at different angles and spin up to 17,000, Incredible enginering for 1964. I we told the sound was the result of the crank and was 132 decibal,s ,

But Honda did produce a 297 for the 350 class, It was unbeatable in the hands of Mike Hailwood and did hold the absolute lap record in the IOM at 107mph, Honda did produce a 125 5cyl and also a 50cc 3cyl, I remember talk of a 250 v8 at the time(1967) but the FIM put a stop to all that

The Honda 6 didnt win in Italy with Jim Redman, It overheated from lack of development, It was complated in 3 months. Phil read won on a Yamaha. Next race it won with Redman, When Hailwood was signed it reached legendary status. You can get audio of the IOM races on the old Stanley Scofield recordings, I believe they are being made again

There is 1 in the US, owned by that crooked lawyer who was into vintage stuff, dont remember his name, It was the very first one from 1964, It went out the back door in Germany to the son of one of the Krupps consortium, He broke the crank right away and left it. I dont think anyone in the world could have made a crank exept Honda at the time and as the bike was a research tool it was never for sale (tax inplications in Japan), The bike was bought from them years ago and a crank made. I saw it run with Jim Redman at Assen 10/15 yrs ago, It failed again and havnt heard of it again, Probably just gathering dust now somewhere in the eastern us.

When Hailwood retired in 1967 Honda paid him not to race in 1968 and he used 1 in non championship races, He kept it and had it in his showroom in Birmingham, Upon his death the bike was sold by his partner Rod Gould to a Guy from Holland for 15k pounds. This was ileagal as it was part of Hailwoods estate, His wife (hailwoods) tried to reclaim the bike was unsucessfull. The bike remains in Holland and well hidden.

The Toronto Science Museum in 1968 asked Honda if they had something they could display and they sent them a refurbished 1967 250 six. They never displayed it, Eventualy a director of Honda Canada recieved a call from the museum saying they have and old bike and would they take it away. The director (Tom Foulds) went to collect it and realised what it was so he offered them a gold wing worth $3k so it passed into private hands. Years later Honda bought it back for an undisclosed sum,(many hundreds of thousands)

Honda never sold any of its race bikes. Nobby Clark was given the task of trying to reclaim all the old bikes that went out the back door. I dont think he was that sucessfull being shown the door himself. Honda would never sue anybody for the recovery of the bikes prefering to simply buy them back.

When Hailwood moved to Newzealand he left a shed full of old bikes(his world championship 350 4cyl and two 500cc 4s (RC181) and also a lot of trophies ( I have one myself) These got sold off to private collectors.
...

und auf "Search" klicken ... danach jeweils den Link auf der linken Seite um größere Bilder zu öffnen ...

http://www.cmsnl.com/classic-h…yword=rc166&CheckBoxList1[]=