Tunnelstuff in Norway

[rumrunner]

I’d buy one

 

[jaxracer]

Is there any interest for the CMB RS 45 EVO outboard adapters?
I may make up some if there is buyers, but I’m not making them up just to be resting on the shelf.

I'd take one also Joern.

Thanks!

 

[Joern Markset]

It seems like a few want them, so I`ll order some material and get some done.
Will keep you posted by making a new add in the sales forum when they are done.

 

[jsmidt]

I’d like one too, Jørn - remember, I lost my Nova Rossi powerhead due to lack of threadlocking…

 

[Joern Markset]

I`ve been thinking about designing an adapter for CMB 91/101 to fit Lawless Cutthroat. After some browsing I found that there is already an adapter made by KRE. Don`t know this guy at all, anyone who knows something about this adapter? Is this available to order, or was it a one off? Parts For Sale - C.M.B. .91 / 1.01 to Lawless gas leg outboard adapter

 

[Brandon Atwell]

Hey Joern,

Ken is on here, he makes the KRE carbs and the 90 engine. Master machinist, he does great work.
Gabe Clegg has one or two of those 90 adapters in his stash from Ken.

 

[XtremeRcBoats]

See this topic from Ken about his 90 engine: and contact details:
https://www.intlwaters.com/threads/kre-90-engines.81919/

 

[Joern Markset]

I have decided to go my own path making stuff for the CMB 91RS EVO.
Started on the backplates today. Even though the stock carb is pretty good, I want to have the option to use the OS 61G carb
Pretty soon I will start on frontbox adapters for both the VP and Cutthroat drives.

 

[Brian Sorgente]

Very nice!

 

[Joern Markset]

Preliminar drawing of frontbox

 

[XtremeRcBoats]

Looks great, wish i had this type of equipement. Looking forward to the complete setup.

 

[Joern Markset]

Looks great, wish i had this type of equipement. Looking forward to the complete setup.

Thanks
It is absolutely no high tech, I have a cheap vintage milling machine.
Actually I wanted this milling machine so bad that I cut a hole in the roof to make room for it

 

[Joern Markset]

First testrun of the backplates

 

[jaxracer]

I have decided to go my own path making stuff for the CMB 91RS EVO.
Started on the backplates today. Even though the stock carb is pretty good, I want to have the option to use the OS 61G carb
Pretty soon I will start on frontbox adapters for both the VP and Cutthroat drives.

When you say VP drive, do you have a link or a photo? I don’t think I’ve seen one.

Thanks!

 

[Joern Markset]

When you say VP drive, do you have a link or a photo? I don’t think I’ve seen one.

Thanks!

This is the VP outboard, a rare and high end lower.

 

[Brian Sorgente]

Very cool stuff Joern, thanks for sharing. What is the big disc thing on the side of the carb? I'm not familiar with that twin needle OS carb, but that disc doesn't look stock.

Brian

 

[anders-e]

Nice stuff you make

 

[Joern Markset]

Very cool stuff Joern, thanks for sharing. What is the big disc thing on the side of the carb? I'm not familiar with that twin needle OS carb, but that disc doesn't look stock.

Brian

Thanks, Brian, I appreciate that you like the stuff I share.
The «disc» you are refering to is a regulatorvalve for fuel. It is activated by vacuum, meaning when you have suction in the carb the valve will open and supply fuel to the carb, when the engine stops the valve close. This is used on helicopters to ensure a stable fuelsupply. Fueltank is under constant pressure, there is a checkvalve sitting in the pressurehose to make sure fuelpressure is not bleeding out.
This sketch explain how it works

 

[Joern Markset]

Backplate’s done Made for the OS carblocker.

 

[Joern Markset]

I have done some testmilling on one side of the 91RS frontbox.