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HelicopterGasser Model RC HelicoptersOther › foam on a 26 modified zenoah engine and it vibrates
08-29-2012 03:12 PM  5 years agoPost 1
uglyrider0078

rrApprentice

Natick, MA

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if im getting foam in the fuel tank and the engines vibrates what does this means is it running lean or too rich

Team Miniature Aircraft

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08-29-2012 03:40 PM  5 years agoPost 2
rbort

rrProfessor

Franklin, MA - USA

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Either way (rich or lean)

Could cause vibrations though they are different in behaviour a bit. On that motor in that heli low needle of around 1 3/16 to 1 1/4 should be in the ballpark and high needle of around 1 9/16 to 1 5/8.

If your too lean it could ni ni ni more and the tail can shake, if its too rich it can burp more and the tail can wag.

Best way I can describe it in words. Also if too lean on the low it can overspeed more easily when you come off the collective on the back side of loops.

Are you free today in the afternoon? I got all my electrics charged (gassers are parked for the trip to NY tomorrow) and will stop by for 3 flights on the way home from lunch with my brother.

-=>Raja.

MA 1005 Hanson 280, 4142 flts
Spectra 27 3DMax, 3210 flts
Whiplash V1 Hanson 300, 1440 flts
Whiplash V2 Hanson 300, 207 flts

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08-29-2012 11:58 PM  5 years agoPost 3
Bill Clontz

rrApprentice

usa

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Could be a tough answer, but you say modified.... was it modified by someone who modifies for helicopters and less vibration, or was it modified by someone for power and buggies? Dont have to mention any names just the process..

Some engines on the internet are modified with only power in mind and will vibrate like crazy no matter what the tune....

Also until it is broken in (about one gallon of fuel with dino oil or two gallons on synthetic) it might vibrate as well.

"Need More Parts"

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HelicopterGasser Model RC HelicoptersOther › foam on a 26 modified zenoah engine and it vibrates
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