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HomeMy Site✈️Aircraft🚁HelicopterGasser Model RC HelicoptersOther › Hanson 3d Max no worky :(
04-28-2009 05:09 PM  10 years ago
sasa

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UAE

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I already change new ring now and I have just start engine with new ring so if am I right I need again to break in engine with this ring PLS Help
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04-28-2009 05:12 PM  10 years ago
lejon

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New ring
Yes Sasa if you replace the ring or the cylinder head you will need to break them in as a pair. The seating that you accomplished on your engine was for that pair. Now that you have a new component you will need to seat the two.

Lejon
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04-28-2009 06:01 PM  10 years ago
sasa

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UAE

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I change only ring but how much gallon I have to use for break in and if I let engine on idle only for 9 houre or say 2 gallon is it ok for break in while I am use normal 2strocj oil in 25:1

SASA
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04-28-2009 06:25 PM  10 years ago
Billme

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2 gallons should be enough
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04-29-2009 06:08 AM  10 years ago
sasa

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2 gallon at idle speed or what ever speed for engine last time it was over speed so overhead then ring stuck I don't like to repeat it again and what id speed needle carburetor setting I put low at 1 1/4 and high at 1 3/4 I use normal G260 not modified and the weather is very hot 40C and dry so what is your suggestion

SASA
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04-29-2009 06:10 AM  10 years ago
Excalibur

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Destination: Earth

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I change only ring but how much gallon I have to use for break in and if I let engine on idle only for 9 houre or say 2 gallon is it ok for break in while I am use normal 2strocj oil in 25:1
You don't want to break the engine in by idling it only. It needs to be heat cycled to properly break-in. Bill, would you like to comment on this further?

Xcal
Camper Fuel: It's Not Just for Breakfast Anymore
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04-29-2009 07:06 AM  10 years ago
Billme

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SASA,

I hate to see you run a stock unmodified 26...Just lighten the piston to run smoother is all it needs. The engine produces enough power like it is..To keep the engine smooth being stock, I would limit the engine RPMs to 11 grand

Since you have told me you have run 6 liters already normally with the new ring, you don't need to do the idle breakin, or the running on the ground at operating rpms..You have already past that stage..
I would just fly it around for a couple gallons, then switch to your synthetic...

If your plug looks good at those needle settings I would leave them where they are, IF the engine is running smooth running that much oil..

You should not have to go any leaner on the low needle..
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04-29-2009 07:30 AM  10 years ago
sasa

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I bring new hanson crank shaft to make it smoother and it works but I Just tied new ring the 6 litter running for old ring so Bill what is synthetic oil I use normal tow strock oil and how important this oil

thanks

SASA
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04-29-2009 07:41 AM  10 years ago
Billme

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ok....synthetic is man made oil.. You are running a petro based oil(real oil

The synthetic just runs cleaner in our engines, but there are some petro based oils I wouldn't mind running all the time...
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04-29-2009 08:03 AM  10 years ago
sasa

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just running clean ! what about cooling or smoothing factor what is ratio for this oil is it mix with petro oil or pure

SASA
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04-29-2009 08:23 AM  10 years ago
Billme

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If you are running clean now, then I would stick to what your doing...

Now, if its not running smooth enough at your settings, you could richen up the low to 1 3/8's..run several tanks, and then check the plug, you should notice it darkin slightly..If the engine is still running smooth for a gallon, and then you check the plug again, you find it getting darker, but the engine is still running good, then I would back the oil down a half ounce to help lighten up the color..

See how it works?

I'll bet everyone will like this little note
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04-29-2009 09:17 AM  10 years ago
sasa

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UAE

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no I have just finish 650ml on idle it took about 75minute low needle at 1 1/4 their is much Vib But I think it will be decrease with time but now there is much oil on exhaust I notice this in ground .any how what next for proper break in step run at operating RPM at ground for how much time or tank size ?

thanks

SASA
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04-29-2009 10:23 AM  10 years ago
sasa

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now finish 400ml at 27 minute at 1500rpm at ground at pitch angle 3deg but looking good for vibe at this second tank I impress of that when it was new it take a lot time and many tank to be like this so may next installation of engine in frame let me do well ,so what is next step Bill ?still in ground like this ?

SASA
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04-29-2009 05:48 PM  10 years ago
Billme

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Go fly
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04-29-2009 06:27 PM  10 years ago
sasa

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UAE

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I spend also 600ml at ground then I flying it is very smooth now not like before when my old ring stuck at cylinder new setting is low needle at 1 1/4 high at 1 3/4 oil 25:1 1500rpm head , engine 9000rpm 350ml for 29 minute total weight 6600gram so how you can evaluate this reading and of course your advise Bill.

SASA
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04-29-2009 09:49 PM  10 years ago
Billme

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If you are running stock gear ratio, which it looks as if you are, you need to bring up the rpms on the motor to at least 11000, otherwise you are lugging the engine, and YOU WILL stick a ring doing that...

You need to run the higher rpms for the engine to cool properly..Even a perfectly tune motor ,if lugged, will get hot at those rpms..

Minimum 1750 with stock gear ratio
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04-29-2009 10:30 PM  10 years ago
sasa

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UAE

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oh this mean problem for me look Bill my gear ratio 6.07 and I span blade 800mm so this mean really problem for that RPM as this a lot force on main blade grip (more than 320kg )if for cooling I can upgrade for new fan with much air at low RPM while 9500RPM for engine this high torque this from power graph in Manual so what is your suggestion for this? my heli is TREX 700 modified to span up to 890mm main blade but I am not test it with this gear ratio it will be problem .

SASA
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04-29-2009 10:38 PM  10 years ago
Billme

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RR is killing me, heheheheheeee

ok, you need to be running 8.0 or lower like 8.4 .. The stock ratio would have been fine, just add long boom, and blades, and you are set, if the clutch is big enough to handle it....
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04-30-2009 06:38 AM  10 years ago
sasa

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UAE

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why RR killing you ?

so 6.07 is fine at maximum torque at 9500 so am I in right way ?

I already extend my boom and torque tube of course and it is fine .

so when I have to but my camera mount in model total weight will be 9.5kg is it heavy at this time ? I mean after how many gallon it will be ready for this ?

I use heavy duty clutch from UK and heavy duty clutch liner and it is cool not warm no any heat in Hub after running this mean no slip .

SASA
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04-30-2009 06:47 AM  10 years ago
Billme

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You are doing something that is very hard to do... You are trying to climb a mountain in 4th gear...

So long as you have no heat problems, and your heli can pull the weight, I guess you will find out...

I would at least get a gallon of fuel through it before hauling weight.
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