Any one has the said PDF saved? Would be highly obliged if it could be shared

https://cimg6.ibsrv.net/gimg/www.rcu...a22df7c108.jpg
I hope this readable for you.

Thanks Hobbsy that was super quick:D
Is there a set of documents for Webra engines ? I could PM you my email for sharing if there are more documents.

And would anyone know what is the thread size on the prop shaft of Webra 145? I have one new in box that I took out to put in some oil and realized that the prop washer and nut were missing. Did not see that when I bought the engine (on RCG or RCU can't remember now)

Here you go Mac, from the Tru_turn adapter page: TT-0825-A
8x1.25mm ADP Kit With 8mm Bushing


Here's the whole page. http://www.truturn.com/cgi-bin/store...5a&ppinc=adapt

Thank you Hobbsy

You're most welcome.

I bought a Kangke SK .90 muffler for $17:
https://www.kangkeusa.com/Engines/90parts.htm

I drilled and tapped my Speed .91 case for 8-32 screws, and the SK muffler is a great fit!

https://cimg7.ibsrv.net/gimg/www.rcu...da584b6899.jpg

I know the thread hasn't been touched since September, but to those of you looking for Webra Parts and curious where you can get parts:

Mecoa bought WEBRA, K&B, FOX, HP, MECOA, HB, RJL, FUJI, TOKI, and KAVAN. They are manufacturing NEW ENGINES in some of their brands. They are also MANUFACTURING NEW PARTS for engines like ENYA and McCoy. They own the above brands and from what I can see their prices aren't too bad either. Take a look or give them a call. MECOA.COM.

I wish they were manufacturing new parts for Enya and Webra, but once those parts are sold out they are not making any new. The Enya parts they have are from MRC.

well I believe that most of those parts are left over from the original manufacture, and when they are gone they are gone for good, as you can see many of those engines parts are sold out and many engines have been sold out too for years. it's too bad too, even tho most of those engines are low on power for today's standards he has some interesting engines there

Jim

Webra T4-40 marine
 

This great thread must live. Here is a Webra T4-40 RCW, the unusual water-cooled version of this nice four stroke engine. Probably only a handful made …


https://cimg2.ibsrv.net/gimg/www.rcu...f13c9a34ca.jpg
https://cimg3.ibsrv.net/gimg/www.rcu...c63cfe063c.jpg

Beautiful piece of equipment 👌.
I have bought multiple times from MECOA and have no complaints. But I wonder what is the intent in just acquiring brands, selling the left over acquired inventory ?

[QUOTE=mchandrayan; But I wonder what is the intent in just acquiring brands, selling the left over acquired inventory ?[/QUOTE] $$$$$$$$$$$$$$ Liquidation job.

they buy the Liquidated parts very-very cheap, even less than what a hobby shop would pay for parts. and they buy the brand's name,, they could make new engines under that name, or even sell the name to some one else. if he was not making money on it then it's just a hobby.

search Willy's Jeep, it is now in the hands of what I believe is the 5th owner and you can still buy their bodies. but there is another company selling complete jeeps under another name. most of it is out of the Philippines.

Jim

yee-up, the Webra T 4st (s) are not just a beauty, it's a very interesting engine. no cam.

scroll way down,,
https://www.homemodelenginemachinist...-engine.25786/

Jim

Ballance
 

Does anybody know the reciprocating to rotational ratio that was used for the balance of a speed 61? I'm guessing somewhere between 50 to 60%.
I know it's a deep question, but I thought I would give it a shot.

Thank You

Not familiar with that ratio... All I know is that usually the balance weight is calculated to balance out the weight of the piston and 2/3rd the weight of the rod (2/3rd of the rod is considered reciprocating mass, the last third is considered rotational mass.

But that is from long ago in school, and a general rule of thumb.