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HomeAircraftHelicopterEngines Plugs Mufflers Fuel › After how many gallons do you change the plug?
05-30-2013 10:56 AM  5 years agoPost 1
Richardmid1

rrProfessor

Leeds, England

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Just wondered how often people change their plug? After 5 gallons mine would start to struggle to hold an idle when cold and needed trimming up further, I inspected the plug and it looked ok and glowed up ok but had a slight grey/white colour to the element so I changed it. Does 5 gallons seem normal?

60% of the time, it works every time!

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05-30-2013 02:21 PM  5 years agoPost 2
Ravenhyper50

rrKey Veteran

Canada's Capital

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Sounds about right.

I say I usually use one plug per case on average over the years.

Cheers,
Raven

Ps:Save those old plugs that still work but not like new for those emergencies when you need a glow plug and cant get to the LHS. Its better to have a worn out plug running instead of not being able to fly at all

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05-30-2013 02:28 PM  5 years agoPost 3
Richardmid1

rrProfessor

Leeds, England

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Ps:Save those old plugs that still work but not like new for those emergencies when you need a glow plug and cant get to the LHS. Its better to have a worn out plug running instead of not being able to fly at all
Already do that but im not sure ide use them again, a flame out mid flight could be costly!

60% of the time, it works every time!

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05-30-2013 05:31 PM  5 years agoPost 4
Rafael23cc

rrKey Veteran

Junction City, KS

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Already do that but im not sure ide use them again, a flame out mid flight could be costly!
Unless you completely loose the element of the plug, the engine will keep running. It will simply not start the next time. Been there, done that.

Rafael

Keep your feet on the ground, but your eyes on the sky.
Team Heliproz.com

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05-30-2013 05:38 PM  5 years agoPost 5
Richardmid1

rrProfessor

Leeds, England

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I have also been there where the element has totally gone while travelling fast inverted quite far away, managed to save it but it was exciting to say the least! Lol.

60% of the time, it works every time!

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05-31-2013 01:53 AM  5 years agoPost 6
feudallordcult

rrNovice

Singapore

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i underestimated the importance of a glowplug. i hv not changed it for abt 11gallons. no wonder the os91 feels like dying no matter how i tune it.

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05-31-2013 01:59 AM  5 years agoPost 7
NQNA

rrElite Veteran

USA

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I say about one per two gallons.. Too bad they cost so much.

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05-31-2013 02:01 AM  5 years agoPost 8
D.Magee

rrKey Veteran

kansas city mo.

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When you have any dout if it is good change it.
Cheep insurance.

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05-31-2013 02:06 AM  5 years agoPost 9
NQNA

rrElite Veteran

USA

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Any doubt or crash^^

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05-31-2013 03:53 AM  5 years agoPost 10
feudallordcult

rrNovice

Singapore

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platinium...seriously the heli-gods have been kind thus far. I wasn't aware I was flying my birdie on a wire.

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05-31-2013 04:02 AM  5 years agoPost 11
NQNA

rrElite Veteran

USA

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my O.S. birds seem to like O.S. plugs better.. anyone else see that?

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05-31-2013 05:43 AM  5 years agoPost 12
ICUR1-2

rrElite Veteran

Ottawa, Ontario

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depends on how hot you run your engine.

I might go through 3 a season

I wouldn't trust an old plug, they don't get better with age

spending time, paying attention

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05-31-2013 06:22 AM  5 years agoPost 13
TMoore

rrMaster

Cookeville, TN

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When a normally good running engine starts to run like crap after a period of time, all things being equal, a plug change is in order. Typically you can make the engine idle but it may run poorly in the hover or sound like it is loading up on the top end. A new plug may fix this and is preferable to jacking with the needles.

TM

Delayed Response Operator Not Engaged
AMA SECTION 336 = Good
Drones = EVIL

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05-31-2013 08:41 AM  5 years agoPost 14
lightningrc

rrElite Veteran

UK

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Regarding plugs I can't believe the technology has not moved forward at all .
I was fitting the same plugs in my mardave marauder nitro buggy 26 years ago lol .
Like some one said we are putting alot of faith in that little thing .
Can't believe there so expensive ethier as I used to change them alot all those years ago and no way could have afforded to if I was 14 now lol

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06-01-2013 01:16 AM  5 years agoPost 15
Helicrazy4

rrVeteran

West Virginia

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It would be nice if Today technology would come out with a plug that is more lasting.

Following Jesus

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06-01-2013 03:12 AM  5 years agoPost 16
ICUR1-2

rrElite Veteran

Ottawa, Ontario

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I'm surprised they don't have electronic fuel injection for nitro
It's not like the technology doesn't already exist

it would take the guess work out of tuning

spending time, paying attention

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06-01-2013 08:14 AM  5 years agoPost 17
lightningrc

rrElite Veteran

UK

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Yep just tap in attitude and fuel ur running into ecu .
Think electric may win before it ever happens .
May happen on the petrol engines though

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06-04-2013 02:54 AM  5 years agoPost 18
Scooterpilot

rrKey Veteran

Southern, California

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I have 105 flights on my Raptor G4 and average a minimum of 11 minutes for each flight. I've used two glow plugs so far. I only change them when they need to be changed. Glow plugs either will fire the engine or they won't, the doesn't seem to be an inbetween.

Two G-4's & X50's YS60SR,Futaba 18SZ/12Z/14FG, ,Rail Blades Rep

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06-04-2013 04:36 AM  5 years agoPost 19
ICUR1-2

rrElite Veteran

Ottawa, Ontario

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Glow plugs either will fire the engine or they won't, the doesn't seem to be an in between
Just hasn't happened to you.

I had plugs that will hover but would quit on punch outs
or would hover for 2-3 min and quit
the coil can get distorted

spending time, paying attention

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06-05-2013 03:49 PM  5 years agoPost 20
flydan

rrApprentice

lawrenceville GA

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^+1 lol

}:>

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