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**electricsceadu** · 05-11-2009, 06:37 PM

i have a graupner jet ranger and agusta 109a both with the graupner uni-mechanics and os61 motors
they both run fine
at first i did have a little trouble with the jet rangers mechanic's engine as i knew the heli and knew it had a carburation problem when i bought it the challenge was set to find the problem of it just flooding and not running up
and i was lucky enough to have the pod and boom bits come with the jetranger so all my testing was done as a pod n boom model
after completely servicing the carb and it still had the same fault i replace the ring just in case it had been damaged trying to get it to run correctley
a secondhand carb was fitted and no difference, both carbs where fitted to another engine and they worked perfectly
and just for something new to try i swopped the exhaust and bingo it was cured the exhaust was giving too much pressure to the tank
and as the spare 60 exhaust i had didn't fit into the body i had to buy a new exhaust

that was two years ago and its still running fine
and here it is

Attached Files

P1010007.JPG (24.1 KB, 25 views)

**chris jones2.4** · 24-11-2009, 09:39 PM

we ran an os61 rx with botom exhaust port

**electricsceadu** · 24-11-2009, 09:54 PM

depending on how old the uni-mechanics are you can use the rear or side exhaust os61
the old frame set doesn't allow the side exhaust motor but the new type side frame will fit the old uni-mechanics
the exhuast still ends up in the same place it's just a different manifold used

**chris jones2.4** · 26-11-2009, 07:02 PM

this is what mine used to look like

Attached Files

MY OLD AUGUSTA.jpg (10.6 KB, 21 views)

**Adrian** · 26-11-2009, 07:04 PM

Nice looking heli

**chris jones2.4** · 26-11-2009, 07:23 PM

cheers, we also had a bell 230 at one time

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Graupner A109

Graupner A109

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