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Type: Posts; User: Truckracer

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  1. Replies
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    See responses above. 2.5 v/cell is used by some...

    See responses above. 2.5 v/cell is used by some companies and is common but I've seen a range from 2.0 v/cell up to 2.6 v/cell. 2.5 v/cell is certainly a safe and conservative cutoff voltage or 5...
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    Every A123 battery I've had has cell voltages...

    Every A123 battery I've had has cell voltages that are nearly identical, even after several years of service. You might try cycling that battery and repeating a balance charge several times, but I...
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    You can recharge from any state of discharge. The...

    You can recharge from any state of discharge. The charger will do all the work. Most all LiFe / LiPo chargers are constant current / constant voltage (CCCV) chargers. They start the charge cycle at...
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    Only replaceable by pressing out / in the...

    Only replaceable by pressing out / in the crankpin. Usually repairable by replacing the crank, bearing and rod assembly. The crankpin is not available as a separate part and if the bearing is bad, it...
  5. If you're very careful, dig into the end of the...

    If you're very careful, dig into the end of the battery where the wires come out. You'll find either a small circuit board there or just solder connections you should be able to reattach the broken...
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    Dan, what is the purpose for the regulator for...

    Dan, what is the purpose for the regulator for the Hitec charger?
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    You might get better responses if you post in the...

    You might get better responses if you post in the kit builders forum here:

    http://www.rcuniverse.com/forum/kit-building-121/
  8. They are not both fuel inlets. The nipple that...

    They are not both fuel inlets. The nipple that goes into the main body on the carb is the fuel inlet. The nipple on the regulator side cover plate is for a vent line so you can run a line back into...
  9. Pennzoil was packaged by Shell under the...

    Pennzoil was packaged by Shell under the Aeroshell label for the 2 stroke ultra lite community but that has also been discontinued.

    I use to be a Pennzoil user for several years but after...
  10. Did you have the welch plugs out of the carb body...

    Did you have the welch plugs out of the carb body when you rebuilt it? A leak there would bypass the HS needle completely. Other than that, a metering needle (the one operated by the fork) would...
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    Hey, at least you're man enough to come back and...

    Hey, at least you're man enough to come back and report your findings. I hope the engine gives you many happy and successful flights.
  12. Oh the glory of forums!;)

    Oh the glory of forums!;)
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    Dan, you will be amazed at the performance A123...

    Dan, you will be amazed at the performance A123 offers. You'll really appreciate the almost zero self discharge. Welcome aboard!
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    For A123 cells, 2volts might be a bit low but it...

    For A123 cells, 2volts might be a bit low but it won't hurt them. Voltage drops so quickly in this region, the discharger will terminate and the cell voltages will return to a normal range almost...
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    I'm so glad you found a forum where you could...

    I'm so glad you found a forum where you could vent your frustration while suppressing the opinions others may have.
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    Dan, you know that I was once as conservative as...

    Dan, you know that I was once as conservative as you are about batteries and resisted the switch to Li based airborne packs. But A123 batteries changed all that and I've been using them for about 6...
  17. The WJ71 as used on most of the 85, 90, 100 and...

    The WJ71 as used on most of the 85, 90, 100 and 120 sized engines should be an excellent replacement for the SDC80. They are the same physical size carb though I believe the venturi on the WJ71 may...
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    Dan and Lifer, according to various sources and...

    Dan and Lifer, according to various sources and spec sheets, the most common recommended cut off voltage for LiFe cells is 2.5 to 2.6 volts though I have seen sources recommend voltages up to 2.8...
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    Hi Dan, Yes, LiFe batteries maintain a very...

    Hi Dan,

    Yes, LiFe batteries maintain a very flat discharge curve (fairly constant voltage) until they are depleted then the voltage drops off very quickly. Probably a flatter discharge curve and...
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    I've probably ordered from TnT two dozen times...

    I've probably ordered from TnT two dozen times or so. Always good follow up if I contact them and usually about 2 weeks or so for a custom order. Not overly speedy service but certainly dependable...
  21. Early Kraft servos were adjustable but the later...

    Early Kraft servos were adjustable but the later II series were internal adjustment only. The early adjustable ones were prone to change center adjustment just by tightening the screw so the shaft...
  22. While product listings are nice, so many carbs we...

    While product listings are nice, so many carbs we use are considered obsolete and are no longer available from Walbro. Many obsolete carbs and parts are available in the market though as they were...
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    Most modern receivers have multi-layer PC boards...

    Most modern receivers have multi-layer PC boards so there are multiple traces handling the current load to each servo pin. More important than the capacity of the board is supplying enough current to...
  24. Yes, the SDC 80 is a very common carb. Especially...

    Yes, the SDC 80 is a very common carb. Especially on some older engines. You need a K10-SDC kit. The -1 number usually refers a certain arm or other configuration variation and not the base...
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    Actually, you just have to convert to a 75MHz....

    Actually, you just have to convert to a 75MHz. frequency which shouldn't be that hard to do. You could make the radio operational on the new frequency with just a crystal swap in the receiver and...
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