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Type: Posts; User: Dave Harmon

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  1. Replies
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    Hi Tony....about 1/4" back from the nose ring....

    Hi Tony....about 1/4" back from the nose ring.
    The 4mm bolts install from the front, no countersink required but I do put a single washer under the head of each bolt.
    I got the bolts at Home Depot....
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    Ken....you can save a LOT of weight up front by...

    Ken....you can save a LOT of weight up front by changing to a Falcon carbon prop and Falcon carbon spinner.
    I can tell you for sure that if you are moving the battery that much....something is...
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    Silver.....the other thread on the Essence...

    Silver.....the other thread on the Essence started by SHANNA mentions good c/g locations.
    On the BJ airplanes I find that the mfgr recommended c/g is too tail heavy for me.
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    I just wanted to let everyone know how...

    I just wanted to let everyone know how enthusiastic I am about Snowman44 motor mounts for the BJ Craft series of airplanes.
    These mounts are water jet cut from Mil-Spec G10 FR4 .093" material to...
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    kdunlap..... Just looking at the left picture...

    kdunlap.....
    Just looking at the left picture and I noticed the pushrod misalignment.
    You might consider moving the clevis on the servo arm to the other side of the arm for best motion.
    Just take...
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    Thanks Steve....mebby Mike will order some if...

    Thanks Steve....mebby Mike will order some if they are available.
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    Thanks a lot Steve....that should do the trick. ...

    Thanks a lot Steve....that should do the trick.

    By the way....is BJ going to make available the proto motor mount you used on the Essence??

    Dave
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    Shannah...... Hi Steve....could you please post...

    Shannah......
    Hi Steve....could you please post the length of the servo arms you used on the Essence?
    I'm starting a build right now and am getting ready to order parts.
    Thanks...
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    Indeed! That has been my experience with Leo as...

    Indeed!
    That has been my experience with Leo as well.
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    You can mount the servo upside down and get a...

    You can mount the servo upside down and get a straight shot to the rudder.
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    If the fuel feed line inside the tank has a split...

    If the fuel feed line inside the tank has a split near the metal tubing....when the fuel level uncovers the split such as nose up or level with a half tank or less....
    It will go lean and quit....
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    Great! I like your line about 'Love em' or list...

    Great!
    I like your line about 'Love em' or list em'.....
    These thangs are kinda like wimmen....they are always at one extreme or the other....never anythang in the middle!!
    Glad to have helped out...
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    Great..... You might try sealing up the hole...

    Great.....
    You might try sealing up the hole with some thick CA as a test to be sure that is the entire problem...before you order parts!
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    The engine is sucking air from somewhere or there...

    The engine is sucking air from somewhere or there is air in the fuel line(s).....or a pinhole in a fuel line on the engine.....look for bubbles in the fuel line.
    If you are using a crap trap type of...
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    The best way to adjust the tappet clearance on...

    The best way to adjust the tappet clearance on these engines is by feel.
    This is because after some running....the rocker arm has a increasingly deep recess worn into it by the valve stem...a small...
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    Bump again

    Bump again
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    Gotta be sompin wong with that engine! Send it...

    Gotta be sompin wong with that engine!
    Send it back...that DB should go 180 mph at least....faster if the wing comes off!!
    HEH
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    Jay....tubes from an Orbit would have been 1AG4...

    Jay....tubes from an Orbit would have been 1AG4 or 6008. These are vacuum tubes not 'gas' tubes like the RK61 which is totally different.
    The Babcock Magic Carpet receiver originally used the...
  19. I'm with you Pete! Glad to hear you got it going...

    I'm with you Pete!
    Glad to hear you got it going Keven!
    Now I gotta just figger out what I am going to do with all this CP 30 fuel I have....yikes.
    If my shop gets hit by lightening....there is...
  20. One of the many problems I had was the sensor in...

    One of the many problems I had was the sensor in the backplate. The wires had become intermittent inside the device and the engine would quit under G force....then restart when the airplane returned...
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    You make them yourself.....see the manual.

    You make them yourself.....see the manual.
  22. Very true. I used LiFe packs for a couple...

    Very true.



    I used LiFe packs for a couple of years and they worked well....but after awhile they got flaky and were charging too quickly for the known per flight current usage.
    I mean that if...
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    Leo....congrats to you and Allen....I'll be...

    Leo....congrats to you and Allen....I'll be seeing you.
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    I think we should bring back the 'builder of the...

    I think we should bring back the 'builder of the model' rule for contests.
    If that happened I might be able to win another contest!
  25. Normally....I do too. This time though....The OP...

    Normally....I do too.
    This time though....The OP indicated he was going to use Mobil One synthetic in a YS which is similar to what I use.
    So...I thought I would mention that I have used the PS...
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