Os 50 hyper

[Kev1]

Hi I know this may have been covered before but I'm new to all this on line chat. I have just started into nitro heli and brought a trex 600 with a os 50 hyper which decided to give up and the repair bill is more than the cost of a new one. So found out that the os 50 is now discontinued and looking at the os 55 as a straight replacement. I'm running a hatori pipe can I use this pipe on the os 55 as funds low and only had the heli 3 weeks. If so has anyone had good results thanks a lot

[scuba steve]

if your new to nitro than the 50 will be perfect for you.....non-regulated and easy tuning. maybe pick up a 2nd hand engine on here or BMFA and use the parts from that. i didn't know it had been discontinued but it will certainly be around for a long time yet IMO

[aww]

Hi I know this may have been covered before but I'm new to all this on line chat. I have just started into nitro heli and brought a trex 600 with a os 50 hyper which decided to give up and the repair bill is more than the cost of a new one. So found out that the os 50 is now discontinued and looking at the os 55 as a straight replacement. I'm running a hatori pipe can I use this pipe on the os 55 as funds low and only had the heli 3 weeks. If so has anyone had good results thanks a lot

Os50 hypers are for sale here :- O.S. MAX 50SX-H Ring Hyper L-OS15550 / Heli Nitro engine & mufflers / Nitro Engines and spares - ALIGN-TREX.co.uk RC Model Helicopter Specialists in ALIGN, E-Flight, Blade, Goblin, Synergy, ALeeS, Outrage, ELY-Q
Great for your first nitro, plenty of power and economical on fuel. I still run one on my T-rex 600.
Anthony

[jwatts007]

There was one in the for sale section recently try and find that it looked ok....

[Kev1]

Thanks for the info but brought a os 55 hyper. Kind of thought as the os 50 is naked and I need a new engine that it was worth putting in the upgrade as I have no intension of giving up this hobby. and spoke to fast lads and just engines and they say I can use my pipe on the os 55. not really what I wanted to spend but it will be a good engine that I can look after and no it will be treated right. Thanks for your response to my question.

[KevDavies]

Well dont bin the 50 Hyper. Get the parts slowly over time and rebuild it and have it as a spare engine.

[Downdraft]

I may have just what you were looking for http://www.rcheliaddict.co.uk/sale/9...xh-engine.html

This is a great engine and it will work perfectly with all your existing kit
give me a PM if your interested.

[Kev1]

yes I was thinking the same and build it up as a spare but it would be cheaper to buy a second hand one off here as when I priced up the parts it's around £160 so don't think I'm going to bother. But might see if anyone is interested in it as the block and carb are fine also the crankshaft is good

[KevDavies]

whats happened to it?? I might have it off ya

[Kev1]

I'm still trying to investigate it when I stripped it i found Metal fillings in the centre of the crankshaft and the piston well scored up in several places plus the liner scored to deep.piston ring still intact but no movement on ring. Plus the heat sink head is well pitted. Checked the rear bearing but seems ok front bearing looks quite brown and when I put the shaft back in and turn it it feels tight in one spot. but what I don't get is the damage to the piston and liner as I don't no we're the metal has come from to cause the damage. I had a mate look at it who is well in to the hobby and it has baffled him as well I have only had the heli 3 weeks second hand from here and only run 3 tanks hovering with one and half turns out on the needle running 20% heli fuel so nice and rich. so as I said I don't get it if any one could shed any light on this would be great also glow plug intact

[Kev1]

I'm still investigate when I stripped it the liner and piston are scored in several places Badly and piston ring is intact but does not move on the piston and there was metal fillings in the centre of the crankshaft. The heat sink head is well pitted as well but the glow plug is intact. I checked the rear bearing but seems ok the front bearing is very brown. When I turn the crankshaft it seems to be tight in one spot (that's with piston removed) I had a mate look at it who is well into the hobby and it has baffled him I just don't no where the metal has come from . I have only had the heli 3 weeks second hand of here and run 3 tanks through it hovering with the needle out one and a half turns so not lean and used 20% heli fuel so if you could shed any light on this it would be great

[Kev1]

Thanks a lot I should have waited but I'm inpatient and brought a os 55 hyper thanks again for your help I appreciate it

[Kev1]

I'm still investigate but the liner and piston is well scored with the piston ring still intact but solid on piston there was metal fillings in the centre of the crankshaft . The heat sink head is also well pitted and I checked the rear bearing it seems ok but the front bearing seems very brown and when I turn the crankshaft it feels tight in one spot ( with piston removed ) the glow plug is intact and I had a mate look at it who is well into the hobby and is also baffled . I just don't know where the metal has come from I brought it second hand 3 weeks ago on here and only run 3 tanks hovering with needle out one and a half turns so not lean and 20% heli fuel so if you can shed some light on it would be great

[KevDavies]

1.5 turns is a bit lean, mines nearly 2 turns out. But wouldnt cause that. The filings in the crank would be the residual fron the cylinder. Might just be the rings failed on it, without looking at it I couldnt say

[Kev1]

ya but the ring is still intact on the piston and shows no sign of breaking up.oh we'll I have a os55 hyper being delivered tomorrow so will be back up in the are and as I said I'll no the engine is new so peace of mind it's not going to go wrong in the air again thanks all for help