To build a twin, what else even if not a true form replica. Just a wild thought you know, like aluminium pattern cast- machined assy, can be bit low tech & compromised but at lower costs. ah., never mind.

Wankel rotary?!!
I am always amazed by this engine for its novel concept & rarity. It takes some serious machining capabilities to build one, Yours must be the first in India?. Yes, please do share as much details you could.

hmm.. this guy is just a loose-engine-nut, in love with engines & admires all those Diy ENGINE-ers. i do a lot of digging the internet trying to unearth such works.
Jokes apart, Anyone with good machining know-how naturally tends to look at things from a different 'what if-why not' kind of angle & you being one such, i guessed would have thought of nothing less. But, the wankel's a real surprise.

bye.,

About my WANKEL Engine project!!

You told>>>>"It takes some serious machining capabilities to build one"
You are absolutely right !!
Me have some problems in sharing the whole " Wankel engine project" story here @ this Forum....as the Prototype was developed for a Overseas Customer....but this particular engine was not for use in any Automobiles , it was for something else ( confidential - but nothing illegal)
The main aim was>>>>" More POWER with Minimum Weight", with LOW CALORIFIC value Gasoline ( say with Octane number less than 80 approx).
I don't know whether discussing things like this @ this particular thread makes sense.....
..But just before going deep in to this Wankel engine...need to say some History, facts, construction, use, advantages & disadvantages of this Wankel engine !!! ( I doubt how many of our buddies will have patience to go further in to this post)
The pic posted in this post is the Main Center Body of a single stage Wankel
( clubbing your questions about machining to..)
This part was made from " High density Aluminum Alloy rectangular block" -pre Hardened & Machined with much difficulty
NOTE: Mostly all wankel engines are liquid cooled one...here we (I) went for Air cooled one,even after making a 3Dimensional drawing( & imaging), Even after much CNC machining, plenty of Hand work , certain compromises
was accepted by me & the customer ( b'coz there was poor accessibility for machining at certain areas even by most versatile tool available!!
PS: Any way posting the above picture---the picture posted here in is a portion of the discussed Engine '
PPS: @ dr.cr : will Pm you my Id, we'll discuss personally....b'coz for sure most of our friends may find it boring in this thread ( i have burned my hands, while writing a restoration thread at some other forum....so I stopped it in the midway

I couldn't believe this is happening in India! OMG Sure, you have the capabilities to make a cryogenic engine Wow, excellent work Anna, why didn't u reveal this before, i doubt you have more classified projects going on at your place now. Hmmm... need to raid your place soon

BTW, please start a New thread so we can discuss about your projects.

wankel

Yes, i do understand the part, especially being on a public forum. No issues, it was great in itself knowing you laid a hand on Wankel. And a pic dating back to 2003! I see this as no OT on this thread but i share your concern for buddies here, some *may* find it

So, back to topic - updates on RE twin?

& for Arjun, hand him a nice camera & pls ask to make an online portfolio/ blog of your collection

It was not 2003, we deliberately fixed that 3 , instead of 8, it was started at mid 2007 & finished somewhere like mid 2008!!
For sure will post some pics of the project progress....& compromises done in that prototype, in this same thread itself, apart from you & frank there may be some "Tech love" freaks among our members.
RE twin??????
, very soon full completed bike pics will be posted.....it was all done in just less than 100 days......ie: 700/100 = 7cc per day

Hi Muttu Anna,
Have been watching your thread since the very first post..I love the way you give details to the beauties.. Have saved almost every pic you have posted
I am currently at Salem,doing my Automobile Engg. Wish to see your garage one day Invite me when you are free
You are doing a wonderful job! you are my hero! My favorite among your collection is the Fury 175!
And wishing good luck for your Wankel engine project(very eager to see that one one in real..)

Thank you brother for your heartfelt gestures !!

* doing my Automobile Engg*:--- Ya!! Guy like you I was waiting for to start a thread regarding " Wankel Engines" ---- why don't you post some pics & theoretical details of that mill....thereafter I can carry on with my project story
ps: BTW, what is that FIRE FOX VIPER???

**Invite me when you are free**:----Free or Busy Always Students are welcome.....hee!! me to a student till my last breath

*** wishing good luck for your Wankel engine project***:- Belated wishes...the proto type was handed over to the promoter @ 2008 itself
(wait for the pics, but not with all details)

Anna, i see that you have to 2 RE singles - Mds 3*** & Msx 5***.
How similar/ different is Mds from the Msx '59 magdyno. From pic its got no casquette, model 'G'?

Edit: Silencer of Msx has a nice longish taper towards rear. pls say if its a correct piece.

A Furious news!!

Even my toughest Project among the lot till now..is FURY !!!

Do you know??
" Zundapp KS 175"{ yes our own Fury's water cooled version @ Germany)
is the smallest capacity Bike( 163 cc/ single) to participate & finish the " Iron Butt rally"
About IBR : > Worlds toughest rally for TWO wheelers....
Covering a distance of 11000 Miles in 11 days

The rider who have done this feat was Mr.Martin Hildenbrt of Germany!!!
@ 2006 , while restoring my totally battered up Fury....went to the extent of contacting that great man....& also contacted him ( that much difficulty I faced)
Just posting the pic of his wonderful Machine, which was sent to me from IBR association

* Mds 3*** & Msx 5***.
As on date MDS ( 1957) mag dynamo type is note mine....It is my friend Sabrinathan's bike
That Clipper type H/L was done....to make it look like" RE J2", even he asked to go for rear mudguard mod....for which 'am not interested...so it is there....let's see what happens.
MSX 5408 -----> owner----> Mrs.Uma Maheswari Muthu kumar ( hee!! my wify!!)
Is 1959 model, with SR1 Magneto Ignition...clean stock bike....but even this was totally a Basket Job!!
About the exhuast muffler...yes a Triumph's free flow was tried...it looks, performs & sounds cool....but to stick to ORIGINALITY ..now again a O.E muffler is there !!
ps: As you may be aware of..'am not interested in numbers..as already I have 3 machines with Mag-Dynamo Ignition...I wish to have a ' 59 Bull with SR1 magneto ignition...which is easy for present day regular commuting

One more GD Naidu from coimbatore


Dear Muthu sir,

Thalai vanangukiran (Hats off !)

I have to say this One more GD Naidu from coimbatore.

Iam a silent xBhpian for many years. i have seen your complete thread. How i missed your thread so many years

realy realy its amazing to see your passion for you love towards automobile. restoring works are superb. and attention to every details like even colour of galvanising(dipping) bolts,stikering,cable mounts,traficators,and many more.

you are the real mobile university. "Nadamaadum palkazai kalagam"

I am proud to post a message on your thread

The best i can say to my experience(age) is you are really living how you want to be, with you love and passion, along with extreme support from your family this every man can't achieve in this modern world.


btw your single stage center body (stator)of wankel engine has unique design with slight beveled projection steps between cycles. where has common one will have smooth oval/eliptical rotor run area.

i waiting to see the rotor is it the solid one or with trasfer slots/ports.
hope most of the works like fins would be hand worked (that to on pre hard aluminium) i hope sealing(gasket) job would be toughest than machining.

"it was for something else ( confidential - but nothing illegal)"

i think may be for some gliding or aircraft purpose since due to low weight to high power ratio.

Btw sorry for deviating your thread from my questions.(over whelmed by seeing such a person on my home town(state). i will post you seperately.

Muthu Sir,

Did you have puch allstate or any split single-two stroke motor cycle on your acquisition. i just want to see and hear how it works

Dear vijaymeyou,
Happy to hear from you!!, the way to go mate!!
This is how we learn things, for that's why all these Forum & stuff for...
Now from my side:
* Hope you are not kidding me....

** It should be the other way round...> 'am privileged to hear from guys like you!!

*** You are partially right...Even though not a BIG Support.....they don't trouble me or stop me to pursue my small dreams

**** Regarding Wankel Engine project::-It will be like misleading,If wankel Engine is discussed here without bit of introduction, some sketches, pics....thought of posting it, after segregating the pics....but will stay basic, without much Tech spec , in order NOT to confuse our buddies..( though plenty of info can be googled out...but on my opinion ...nothing to be taken for granted..)
Couldn't resist replying you:
a)The inside of the MID PORTION, you have mention is a " Epitrochoid" profile ( our system dictionary , doesn't accepts this spelling...but that is right)
b) Even this is smooth, the one seen is before "profile grinding & lapping" after Nikasil coating.
c) Sure you can see the rotor ( needs lot of explanation....it is termed as REFLUX triangle)
d)Hand working at the inside of turbulent ports only!! .As this is a prototype...hardness was compromised

***** Ya!! some thing like that.......

****** Yes, you are always welcome to discuss things which gulps Fossil fuel...wheels..blah! Blah!! etc..

No -split single/ Twingle @ my Garage, But.....

No , I don't have one{ split single/ Twingle} in my Garage, but laid my hands on a TWN Cornet 200 / 1955
It was cosmetically done & had a buggered up powertrain, before she reached my hands..
It was our friend PV Grish's bike, as already damage was done( the Crank was chopped off & a quarter portion of a Hero Honda crank was welded to this Y type crank....couldn't make it perfect, to my satisfaction...but was made to run & still she is road worthy......thus a wonderful machine was saved...after all we are human beings
PS: will post the pics after digging out from one of my storage media.
pps: If you are in a hurry to see it before ,me doing the Job...just search TWN Cornet 200 at TBHP( the same one, which we fixed it here for Girish)

Dear Muthu why coat the Nickasil and then do profiling ? It will be much easier to do the grinding and lapping without Nickasil coat,and will also save the coating to retain the hardness....Any specific reason ?