**** is an excellent place to go look at pictures of engines and other model stuff. No charge for looking .

Jim

I don't know about that "no charge" bit Jim. I have found the temptation quite pricy as times.

jess

I don't know about that "no charge" bit Jim. I have found the temptation quite pricy as times.

BTW Andersons Blue Book is a good investment for anyone interested io the history of model engines. Mr. Anderson has published some more books on vintage modeling as well.

jess

As I recall, the Fox stunt 35 was introduced about 1948. It has been in continuous production, with minor modification ever since. So far as I know, this is longest continuous uninterrupted production run of any model engine. Next in line are the Cox Baby Bee introduced in either '56 or '57 and the Cox PeeWee introduced in '57. I think this is right but an happy to learn better.

Jim

Ben, I called a friend at a hobby shop in southwestern Va. yesterday to see if he still had new Conley 120, unfortunately he did , I'll have it by Wednesday. In the last four or five years I've looked at it so many times it has more of my finger prints on it than anyone elses so I might as well buy it. How's that for logic.

You know if you collect 'em you GOTA HAVE'M!!!

Show of pic of that Conley 120 when you get it. But wipe all those d#mned finger prints off it!

Only odd ongines I have are a Frog 50 british diesel .039 cu in. I think. Super Huricane 24 ign engine. Made in Canada. And an old Webra rear rotary valve, racing controline diesel.2.5 cc.

OK Ben, it has arrived. Interestingly the ABITAR came with no muffler and Conley came with a straight pipe and a muffler that bolts directly to the head. The top of the piston is clean and dry and the glow plug threads have not been violated. I gotta think about whether I want to run it or not, nah, of course I'll run it, if you don't run it it's just a bunch of parts that look like an engine.

Jim,

The Space Hopper was an .049. The .15 was either an Olympic (BB) or Sportsman (plain bearing). I had the Olympic until it got stolen while I was in the service.
I'm guessing yours was an Olympic too if you used it in competition. Why would you want to 4-cycle that engine?

George

Yes, It was an Olympic. The only time I wanted to four cycle it was when I first ran it to break it in. But that was out of the question. The reverse rotation incursions were potentially more harmful than the 2 cycle running. Needless to say I never wore it out with the short free flight runs.

Enjoy,
Jim

I thinking you saw the Webra T4-60 engine.
It was not OHC in Webra, it had horizontal cylindrical rotary-valve.

Webra maked these engines T4-40 and T4-60. T4-87 had Aspin rotary valve. All engines had timing belt.

Jens Eirk

That is correct. I was talking with Hobbsy Monday on the phone and he told me how his engine was and that the 60 was a rotary valve engine also. It just had a external belt drive to time it. I just saw it mounted on a Kadet Senior ARF. Didn't exame it very closely.

Thanks,

Jim

Here's mine

I have the 40version Webra 4 stroke still in the box. Used to have a pair of Allyn Fury twins. One was the .09, the other a .015. The .015 was a little power house but the 09 had a crankcase volume imbalance where one cyl would run lean and the other rich at the optimum carb setting. A problem with a single carb twin.

Hobbsy,
Thanks for the pics! Let's see...... that makes how many engines do you own?

Time to write an engine book with all the pics and info on each engine.

BTW, Are you going to tell us how much you had to paid for that Conley?

That was engine number 118. Engine number 119 will be a Fox .50 that might come tomorrow. Thanks for the interest. I am toying with the idea of testing some engines on my AHP torque reaction dyno to find the difference between, for example a Fox .74 glow turning a 12x8 two blade Graupner at 11,200 rpm and a Fox .74 Davis Diesel conversion turning a 12x8 three blade graupner at 9,400. I may make a post soliciting ideas on how to measure thrust while I'm measuring the torque. It should be do-able. I am pretty good at fabricating things.

Hobbsy, your Webra are without "compressor", have you removed tupe and one way valves?

Here are my Webra T4 with "compressor". The engine are easy to start and nice to run. A strong workhorse.

Jens Eirik

lol Motorboy, only two rubber bands?!?

Jens, the way you see my engine is exactly the way I received it, the box still has the original foam in it and your engine would never fit in the box you see in the picture. The plates on the crankcase appear to be factory made as are the gaskets. If yours has one way valves on both sides, it supercharges like a YS and must run about like a 1.20. Mine has surprising compression holding ability.

Gord,

Does your old Webra 2.5 look like this (except the prop nut, which fits a spinner)? It is an excellent runner. The only detraction is having to drill out the prop hole.

George

Completely different engine model than mine also. Ex. comes out the back, and no idler pulley, different motor mts., fins on top of head on mine. What engine is it, Jens?