Here's a later version of the 4 lb G62, now 3 lbs, 12 oz...ALL parts are there, no muffler...
The ignition parts will be put in the black box, the little aluminum hub goes on the crank under the prop hub shown....The bear was just sitting there...

Ralph, not only are you good with engines, but you got style! Maybe when I recover from credit card stretch I'll try one of those engines.

Ralph, Excellent weight but.......how well does the engine cool with the reduced cooling fin area?

DARN YOU RALPH!!!! YOU KNOW I CAN'T AFFORD ANOTHER ENGINE! And you insist on teasing me anyway. Get a heart will ya.[8D]

My G62 has more fin area than most of the ZDZ engines, so cooling shouldn't be a problem

Nice work Ralph. That would work very well in the new Lanier 30% ARF's

Looking Good Ralph[sm=thumbup.gif]

Ralph,

any guesses about the rpms the g-62 will turn a 22 x 8 bolly?

Thanks Elson

I haven't tried one, probably somewhere around 7500...I could send you this engine, run the @#$% out of it, see if it dies....

I use to get 7300 with a 22-10 Standard Zinger, so 7500 on a 22-8 bolly seems right to me.

Ya can't kill that motar, Bugman

Ralph,

Is this an engine out of a Red Max chain saw with the smaller crank, or is it a stock G62 modified?

Ralph,

What does the g-62 weigh with your mods without the trimming of the cooling fins?

Thanks Elson

Also,

Does anybody know the fuel consumption of the G-62 running at "wide open throttle"?

Elson

I think you're looking at 1 to 1.5 oz. per minute at full throttle.

stock G62 modified, 3 lbs 12 oz..I don't think the fins made much difference, there were 3 broken ones on the front so I just took the diameter down some..The first lite 62 had stock fins, weighed 4 lbs with ignition in the mount..This one has a separate ignition with a 3W shielded cap and wire and a CM6 spark plug...The smaller chainsaw crank weighs a little less but is smaller on the tapered end, so not as resistant to bending..If I still had access to my toolgrinder friend he could grind a taper on the straight end..I did it a few times on the Sachs 4.2 cranks that are made that way..Worked great...I think another manufacturer does this but leaves it straight..with a 3.2 Sachs 2 piece crank...It's a good idea..the straight end has the big end crank pin ground as one piece on the counterweight side, and the rear part presses onto the front...Less likely to twist...

Ralph,

Thanks for the info.

Nogyro,

For 3W engines, the cc displacement is a very good estimate of the fuel consumption in cc/min at wide open throttle. This estimate slightly over estimates the fuel consumption for single cylinder engines and slightly underestimates the fuel consumption for twins. A 3w-50 burns 50 cc/min or 1.67 oz/min at WOT. I didn't know if the G-62 followed the same trend.

Elson

rc bugman,

I ran a G62 on a 20 lb. Giant Stinger for 3 years, but never ran it full throttle for a full flight. I always used 12 to 14 oz. on a 15 minute flight, mostly sport flying and learning to hover. Generally I was at 1/2 to 3/4 throttle most of the time.

Ralph -

How much for the bear?

Phil

Ralph,

Did you make the back plate on this engine, or is that what they are coming with now stock from Zenoah? They used to come with those thin stamped out metal ones.....

I made the back plate to be as small as possible..It's bored out on the back side...

Where can you get a G62 converted and how much does it cost? I am looking at getting into gassers, but man those DA's and such are a little pricey for me.