Enya with a roof, or maybe the Space Needle Enya

Yes, V groove for a starter, I have a boat with a similar system for starting but a shaft drive.  

Maybe a flywheel, but nothing can be attached to it for motive power other than a belt that I can see.

Nice Perry carburetor though.

#'s 587 on both pieces are curious.

Ah yes, centrifugal clutch with the hex head machine screws as the pivot. Pins must not go all the way through. Reason for the ball bearing. Home made affair maybe?

Perry carb made for fine speed control with the clutch engaging at a certain rpm.

I would love to know what it powered.

Bob

Thanks all,

I ran this by Bob Allan of Enya research fame and he couldn't tag it as to function, but mentioned the heat sink was of Japanese manufacture. I also contacted the seller and he said the original owner had passed but was into model airplanes. Not much there.

I like the clutch/hub idea to turn a shaft powering either boat or car. But there should be a lining on each "shoe" allowing slippage as metal to metal contact could be brutal. Think brake shoes in reverse only to go not to stop.

Bob

I hadn't thought Helicopter Dave, but that's the best option.  

The 4006 was a mid 70's/80's engine and Helicopters were just coming into their own at that time.  Enya did make an engine specifically for helicopters.  I have a couple of their car engines which could be adapted for helicopters.



The picture is your prize.  

Eric, the Enya is in the A/F boil pot right now.  When it's clean and loose I will take it apart and post pictures.

Freebee pictures......some prize Dave says.....

Boiled the Enya for about four hours, Perry carburetor included. Worried a bit about the outcome but it did well, clean and no damage. The Enya came out predictably clean.

I removed the clutch system by backing off the assembly until I could unscrew the brass nut. I used tooth picks to block the piston.

Nicely constructed, expansion springs holding the clutches against force to a certain point. Must have been commercially available at the time, might even be now.

I was surprised to find the crankshaft keyed to the prop drive washer, not typical. Maybe only on the ball bearing or specialty engines.

I'm not going any further with this engine. Mount it and gaze. But, it would be easily converted back to R/C or C/L.

Dave P. wrote:Is the bearing in the center of the brass nut a sprag clutch?  In other words, is it a one-way bearing?  If so, that could have been for a starter shaft.  That was a feature on some heli engines in the 70's - 80's.  

Thanks for the pictures Bob!  

Bearing rotates both ways Dave. Might lock-up at speed but I doubt it.

Looks to be a bearing for a pilot shaft.

Welcome.........

Bob