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HelicopterMain Discussion › So there I was with my new Carbsmart installed and​running and !
07-14-2008 12:20 AM  9 years agoPost 1
FenderBean

rrElite Veteran

Clarksville, TN

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Nothing, either my engine mixture control was set or i just didnt do something right, but even when I leaned it out and temp went over 100 deg it never went rich. Can anyone walk me through setup to make sure i did it right?

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07-14-2008 12:31 AM  9 years agoPost 2
JAGNZ

rrProfessor

Auckland, New​Zealand

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It sounds like your sensor is bad - common problem. You can easily damage them during install too, especially if not 100% cured before use. What did you mount it with?


Jason Greenwood

www.3dheli.co.nz

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07-14-2008 01:09 AM  9 years agoPost 3
FenderBean

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Clarksville, TN

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how can it be dmg i i just dropped some thermal expoxy and slid it in till it hit the head, the light on side for sensor is on does that mean its working?

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07-14-2008 01:10 AM  9 years agoPost 4
FenderBean

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Clarksville, TN

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it cured over a week before I flew it. is there any way to check the sensor?

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07-14-2008 01:11 AM  9 years agoPost 5
JAGNZ

rrProfessor

Auckland, New​Zealand

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Not necessarily, do a search, the sensors are VERY fragile. You have to be very gentle with them or they fail and can even be DOA. I had one of those myself.


Jason Greenwood

www.3dheli.co.nz

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07-14-2008 01:14 AM  9 years agoPost 6
FenderBean

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Clarksville, TN

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wow its brand new! crap guess i can call and see if they will replace it. got it from Grand RC

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07-14-2008 01:16 AM  9 years agoPost 7
JAGNZ

rrProfessor

Auckland, New​Zealand

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In my experience they don't since they can't be sure you were not too rough during the install but you can try it. Most guys are buying sensors 2 or 3 at a time.


Jason Greenwood

www.3dheli.co.nz

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07-14-2008 01:27 AM  9 years agoPost 8
Rockohaulic

rrElite Veteran

Canyon Country, CA,​USA, 3rd Rock from​the Sun

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When I installed my first sensor, I screwed up.

I installed it with the engine in the heli. I should have held it in place while it cured, but I noticed it sorta stayed in place, so I got lazy.

Well it didn't work, so I removed the engine and found out that since I had the heli on it's side, the sensor cured at an angle due to the wire hanging off the back. The sensor was not up against the combustion chamber at all, and there was no epoxy around the sensor.

So with the engine out, I tried a second sensor. I made sure the sensor was flush against the combustion chaamber. Then after it cured, I put some more epoxy around the sensor to make sure it had good thermal conductivity.

This one worked fine.

Also, make sure you are thinking the correct direction when you adjust the needle. Sometimes you might think you are going the right way, but you are doing it backwards. If the needle is hard over to the right, lean, and will not come off of lean, then remove the control lever, lean it a few clicks, and replace the control lever.

If it is hard over to the left in the rich position, this is bad. It is trying to richen it up and can't get it rich enough. You are too lean. Remove the control lever, richen it a few clicks, and return the control lever.

Saturday morning I flew my helicopter in my pajamas
How it got in my pajamas I'll never know

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07-14-2008 01:56 AM  9 years agoPost 9
FenderBean

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Clarksville, TN

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well even if its not completely against the engine the thermal epoxy should transfer the heat to sensor

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07-14-2008 04:16 AM  9 years agoPost 10
ammo

rrVeteran

Singapore

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I had my sensor died after i install it, same as Rockohaulic i just installed it with the engine still in the heli.

A few flights later with no movement of the servo, i decided to remove the engine for inspection. turns out there was a gap between sensor and heatsink, it might have shifted out of place during curing phase or i could have simply not positioned it well enough.

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07-14-2008 06:08 AM  9 years agoPost 11
FenderBean

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Clarksville, TN

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well i can try maybe the sensor is okay and needs reglued

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07-14-2008 06:30 AM  9 years agoPost 12
crofty

rrApprentice

Phoenix, AZ - USA

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I know this is a stupid question but how do you know it went over 100C? Are you sure it wasn't 100F?

I have nerves of steel but thumbs of jelly!

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07-14-2008 07:11 AM  9 years agoPost 13
plantone

rrVeteran

Perth wa

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Turn on the radio gear the mixture servo should be in the most lean position then unplug the sensor from the carb smart control board & the servo should return to the centre position if it does then the senor is OK & you have not set it up properly with the end points etc.

Wayne

Mongoose
Srimok FAI
SAB Goblin
ENV Rave Next D 450

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07-14-2008 02:44 PM  9 years agoPost 14
FenderBean

rrElite Veteran

Clarksville, TN

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i think it may be a setup issue the servos does nothing, and if the temp on the carbsmart if is in C not F then yeah that could be an issue. I have an IR temp gun I can set to F or C so I will recheck everything.

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07-14-2008 03:13 PM  9 years agoPost 15
u77171

rrApprentice

NY - USA

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I don't have a CS but a lot of the guys at my field do. They use a heat gun/hair dryer to test it on the bench. I know this isn't an answer to your question but it may help debug the problem. Good luck.

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07-14-2008 05:04 PM  9 years agoPost 16
kcass518

rrVeteran

Manhasset, NY - USA

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I tried the heat gun and nearly melted my wires

But - if the Sensor Light is ON, doesn't that mean that the sensor is working properly?

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07-14-2008 09:44 PM  9 years agoPost 17
FenderBean

rrElite Veteran

Clarksville, TN

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well i was going to use my iron

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07-15-2008 05:31 PM  9 years agoPost 18
400driver

rrApprentice

uk/ Spain

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waive a cigarette lighter under the sensor..not too close though.

More days at home would be nice!

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07-17-2008 01:07 AM  9 years agoPost 19
FenderBean

rrElite Veteran

Clarksville, TN

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okay update! my sensor is fine I just didnt set it up right, I do have a few questions though.

Is it possible for the carbsmart to richen instead of lean, since theres no servo reverse or does it know when u tell it the full lean and full rich settings via the adjustment screw.

Also when I was at idle the servo moved back n forth like it was glitching. is this normal?

Also anyone have any radio glitches from the carbsmart?

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07-17-2008 01:33 AM  9 years agoPost 20
400driver

rrApprentice

uk/ Spain

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Fender Bean,
There are a couple of setup videos for carbsmart over on Finless Bobs section of the " Other Site" Heli Fr**K, they will show you everything you need to know.
cheers

More days at home would be nice!

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Scorpion Power Scorpion Power
HelicopterMain Discussion › So there I was with my new Carbsmart installed and​running and !
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