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Gasser Model RC Helicopters > X-cell gasser G231 PUH Break-in
 
 
Billme
Key Veteran
Location: MS

Another thing Nick,
I'm running 1 3/8s on the high and low with this setup...Glad it workout for you
Bill
08-26-2003 Over year old.
 
 
Xcellgasman
Heliman
Location: United Kingdom

Hi Bill

I am thinking I will have to wind in the high needle to 1 3/8 as the motor breaks in a little more...would this be usual?
I have difficulty determining whether the sound of the motor at full throttle is loading or bogging, my feeling is probably loading,as the engine note continues at the same tone continually at full throttle. If it was bogging down I would guess the tone would change continually?
I have not had a tacho on the blades yet as I need someone to scope the blades as I fly, this will tell me the truth!
If it turns out to be bogging down a bit, do I very progressively wind in the high needle until I get a result? If I go too lean on the top needle, how will this be immediately noticed (preferably before the motor turns into a molten piece of scrap like my other one!
It is obviously difficult to see fin buzz at full throttle and 70mph!
At the moment, she seems very happy at 1 1/2 turns on the high and goes like a rocket, maybe there is more power on tap!
This 231 is just a completely different motor to the g23, I cannot wait to get her fully run-in bring out all the horses! (well both )
Thanks for your help Bill.
Regards
08-26-2003 Over year old.
 
 
Billme
Key Veteran
Location: MS

The bogging is probally the engine just loading...This is normal for a gasser...Check your RPM if you can...I let mine drop about 50 rpms...Although, I just change my setup this week like I set John Garsh machine...I went back to the 700's Vblades
Just get several more flights, and let me know what your plug looks like with your needle settings...
Don't worry about burning your engine up with these needles settings..
I'm getting ready to post my setup window for the new 231 that I shared with you
Just do not go below 1 1/4 on the high...and 1 3/8's on the low...If your rpms drops, and doesn't hold, always richen first, if you don't know...Remember what effect it had...If you don't see a change, put the needle back, and reduce pitch a little...
When you start doing aerobatics, you'll need to mix swashplate to throttle mixing, or get a gov, for the engine to keep cooling properly..
You can have the needles perfect for straight level, and normal turns, but if you really do hard turns, and keep it there, it will heat up , and loose rpm, and then quit...I say this to help you understand some of the quirks of the gas engine...Introduce the gov or mixing in the same situation, it will run, and load all day long, ok?
Many regards,
Bill
08-26-2003 Over year old.
 
 
ImRich
Veteran
Location: Derry, NH USA

John,

What difference (if any) can you notice with the velocity stack? Did you put it on and take it off a few times to confirm the performance feel?

XcellGasman, I sent you an email. Reply with your email address and I'll send you the .doc file. It should be downloadable via the gallery.

---
Rich
08-27-2003 Over year old.
HOMEPAGE  
 
 
Xcellgasman
Heliman
Location: United Kingdom

I have run a gallon & a half through the 231 now, things have really settled down, I am still 1 1/2 on high & 1 3/8 on low and I have lowered oil content (amsoil) down to 60:1 which did not really make an instant difference (from 40:1), I still have bags of power, no vibes and a nice idle. My plug is slightly on the rich side of things (phew!) with some dark deposits, maybe after another few tanks at 60:1 it will lighten things a bit.
I have had a Walbro part Number 125 528 fuel tank clunk for over a year ( a big felt job about 1 inch long & 1/2 inch diameter), I have never been very confident using it (from the fuel pick-up point of view), can anyone tell me good or bad about them? It seems a shame to spend it's life in the bag!
Any input appreciated!
Regards
08-28-2003 Over year old.
 
 
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Gasser Model RC Helicopters > X-cell gasser G231 PUH Break-in
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