Three or four cylinder Rumi's

Moto Rumi technical problems or solutions
opsimoto
Posts: 127
Joined: Thu Jun 11, 2009 6:41 pm

Re: Three or four cylinder Rumi's

Post by opsimoto » Sat Apr 02, 2011 6:30 am

More pictures
Attachments
K800_P1010765_WEB.JPG
K800_P1010765_WEB.JPG (95.96 KiB) Viewed 81146 times
K800_P1010761_WEB.JPG
K800_P1010761_WEB.JPG (97.54 KiB) Viewed 81146 times
K800_P1010760_WEB.JPG
K800_P1010760_WEB.JPG (93.73 KiB) Viewed 81146 times

Lasse
Posts: 1501
Joined: Mon Aug 10, 2009 5:18 pm

Re: Three or four cylinder Rumi's

Post by Lasse » Sat Apr 02, 2011 8:22 am

To Jacsimo:
About the Puch/DKW & Bekamo "split doubles".
The Puch had a "two points big end" so the pistons did not follow each others, up & down.
Try to go to the Internet, and search on the German TWN motorcycle - they had a variant of the principle, on most of their bikes in the fifties.
(Two cyl. "side by side" - looked as a twin cyl. motor - but actually just one conrod...


Lasse.

hugomez
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Re: Three or four cylinder Rumi's

Post by hugomez » Sat Apr 02, 2011 8:27 pm

opsimoto wrote:Hello Rumifriends,

We all know the fantastic Rumi's build by Mr. Fabbri.
Another construction was shown by Tony Mooring at "Download section" of this forum (Number 19)
In France a moto cross rider called Olivotti build a 4 cyl Rumi in a Royal Enfield chassis with Enfield gearbox to participate on Moto cross races in 1955.
First he wanted to put 2 Rumi engines together but than he decided to make a bloc and crankshaft by himself and used the Rumi cylinders and heads.
He used 4 Dellortos with 22mm and build a airfilterbox.
If someone has infos about this engine, please let me know.

Best regards and good Rumi season 2011 to all.
René
Hi René,

Very interesting that another modification of Moto Rumi engine appeared here.

The last photos you show here looks very recent, did you took those photos?, do you have this engine?

I try to understand the Italian article and in my little Italian understanding there is not much more information that the one you already told us.

Let see if you are lucky and somebody else can give you more info about this curious engine.

Good luck,

;)
OO
My little Formichino here: http://www.formichino.com/pictures1.html

opsimoto
Posts: 127
Joined: Thu Jun 11, 2009 6:41 pm

Re: Three or four cylinder Rumi's

Post by opsimoto » Sat Apr 02, 2011 9:02 pm

Hi Hugo,
Yes the pictures are fresh, home made and made at home ;) :lol:
I have a little bit more information on a old magazine but in very bad condition. I will try next week to put more information about this bike, the engine and the driver.
Best regards
René

hugomez
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Re: Three or four cylinder Rumi's

Post by hugomez » Sun Apr 03, 2011 5:16 pm

Hi René,

It's great that you have this engine. Do you have the rest of the bike as well?, if so, I can imaging that your plan would be rebuild this "Rumi Enfield"

Good luck with the project!!

;)
OO
My little Formichino here: http://www.formichino.com/pictures1.html

Lone Rider
Posts: 11
Joined: Sat Feb 18, 2012 11:00 am

Multi-cylinder Rumi Special.

Post by Lone Rider » Fri Feb 24, 2012 8:52 pm

I have had these images on my computer for some time now.

Can't remember the site they came from, but this guy builds, (built), these multi-cylinder
Rumi motors. No idea as to why they would be attached to an old Royal Enfield box though.
Rumi Motor 2.jpg
Rumi Motor 2.jpg (86.34 KiB) Viewed 77475 times
Rummi Motor.JPG
Rummi Motor.JPG (104.89 KiB) Viewed 77475 times
Any one know more?

opsimoto
Posts: 127
Joined: Thu Jun 11, 2009 6:41 pm

Re: Multi-cylinder Rumi Special.

Post by opsimoto » Fri Feb 24, 2012 9:26 pm

Hello,
Here some information about this engine.
Best regards
René


hugomez
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Re: Three or four cylinder Rumi's

Post by hugomez » Fri Feb 24, 2012 10:12 pm

I have merged the new topic of Lone Rider because it is something that was already on this topic, so now we carry on here.

;)
OO
My little Formichino here: http://www.formichino.com/pictures1.html

Lasse
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Joined: Mon Aug 10, 2009 5:18 pm

Re: Three or four cylinder Rumi's

Post by Lasse » Sat Feb 25, 2012 11:34 am

To Opsimoto:

I have some spare gearbox-parts of the same (Royal Enfield) gearbox, as the one on your picture.
The box is easy to work on.
Its a very good box - shifts noiseless and positive - and have that very usefull "neutral gear" pedal!
I still have my 1953 "500 Competition" and am very happy with it.

Hitchcock in England have ALL spares - used & brand new...

pess32
Posts: 159
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Re: Three or four cylinder Rumi's

Post by pess32 » Tue Mar 20, 2012 9:31 am


Ian Skinner
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Location: South Wales UK

Re: Three or four cylinder Rumi's

Post by Ian Skinner » Tue Mar 20, 2012 10:53 am

One of the advantages of the Royal Enfield gearbox (Albion) is that it accepts five speed internals. My John Dixon Racer is an example.

Ian

hugomez
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Re: Three or four cylinder Rumi's

Post by hugomez » Tue Mar 20, 2012 12:19 pm

pess32 wrote:other interresting model !!! :D :D

http://www.southbayriders.com/forums/sh ... hp?t=21086
We also talk about this bike here, have a look to this topic: http://www.formichino.com/forum/viewtop ... f=16&t=119
My little Formichino here: http://www.formichino.com/pictures1.html

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