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  1. #126

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    RE: Convert GMS 120 glow to Gas

    [img][/img]

    Hi
    Check it out this is a OS 160.
    I have not put it on a plane yet but soon it will be on a plane.
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  2. #127
    av8tor1977's Avatar
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    RE: Convert GMS 120 glow to Gas

    What is the line coming off the side of the crankcase? I am assuming it is a pressure pulse line for the fuel pump, but it doesn't seem to be hooked up properly at the carb. (Hard to tell from the pic.) Also, it appears to be a silicone line, which is a huge "No No" with gasoline. The gasoline will turn it to mush in a short time....

    AV8TOR
    If it is not SCARY, it is NO WHERE NEAR powerful enough!!
    All R/C planes have expiration dates---> It's just not printed on them anywhere!

  3. #128
    Moderator w8ye's Avatar
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    RE: Convert GMS 120 glow to Gas

    that spark plug connector reminds me of "RF CITY" Do you have a resistor in there?
    [img]{akamaiimageforum}/upfiles/449233/Nk27900.jpg[/img]
    Attended the CutFinger Institute of DirtNap University for years but never did graduate....
    Recipient, Mangledhand award August 2008
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    Original AMA #31261

  4. #129

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    RE: Convert GMS 120 glow to Gas

    If you want a shielded cover for that small spark-plug, get in touch with Ralph at rcignition.com He did have them. Nice looking OSMax. What brand of oil and what % are you running in engine? Best Regards Capt,
    I never met a engine I did not like !

  5. #130

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    RE: Convert GMS 120 glow to Gas

    Hi
    That line goes to the carb adpter ti pump the carb.
    And I will change line.

  6. #131
    Jezmo's Avatar
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    RE: Convert GMS 120 glow to Gas

    Nice looking conversion Mike. Yes change the silicone hose for sure. My SuperTigre 90 also uses an adapter plate that has the pulse connection plumbed into it. Works very well. If you decide not to change to a fully shielded plug cap then do a VERY GOOD range check. Those little Rimfire plugs don't have a resister in them and without full shielding all the way to the plug base you can get some pretty bad RF interference as w8ye mentioned above.
    Spektrum DX8i, DA DLE SuperTigre OS FOX Saito Enya Jett TT: John 3:16

  7. #132

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    RE: Convert GMS 120 glow to Gas

    ORIGINAL: av8tor1977

    What is the line coming off the side of the crankcase? I am assuming it is a pressure pulse line for the fuel pump, but it doesn't seem to be hooked up properly at the carb. (Hard to tell from the pic.) Also, it appears to be a silicone line, which is a huge ''No No'' with gasoline. The gasoline will turn it to mush in a short time....

    AV8TOR
    Miker, As long as gas does not run through or collect in the silicone pulse line.....it may last a long time. On test stand...how is it seem to be doing...just curious. Capt,n P.S. Would like to hear more on how the OS Max runs. Thanks
    I never met a engine I did not like !

  8. #133

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    RE: Convert GMS 120 glow to Gas

    Miker, here is a photo of one type of sparkplug shield....there are others also. Capt,n
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    I never met a engine I did not like !

  9. #134
    av8tor1977's Avatar
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    RE: Convert GMS 120 glow to Gas

    Why would someone take a chance with a known improper fuel or pulse line? Good way to possibly lose an airplane if the engine quits at a bad time....

    AV8TOR
    If it is not SCARY, it is NO WHERE NEAR powerful enough!!
    All R/C planes have expiration dates---> It's just not printed on them anywhere!

  10. #135
    Jezmo's Avatar
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    RE: Convert GMS 120 glow to Gas


    ORIGINAL: av8tor1977

    Why would someone take a chance with a known improper fuel or pulse line? Good way to possibly lose an airplane if the engine quits at a bad time....

    AV8TOR
    I'm with ya on this one. Fuel line is way too cheap to take a chance.
    Spektrum DX8i, DA DLE SuperTigre OS FOX Saito Enya Jett TT: John 3:16

  11. #136

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    RE: Convert GMS 120 glow to Gas


    ORIGINAL: av8tor1977

    Why would someone take a chance with a known improper fuel or pulse line? Good way to possibly lose an airplane if the engine quits at a bad time....

    AV8TOR
    AVATOR...Can you read the post??? TEST STAND...just to see what happens. OK WITH THAT?? OH my acking *****
    I never met a engine I did not like !

  12. #137

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    RE: Convert GMS 120 glow to Gas

    Hi Capt,n
    Where can I get a shielded plug conector like that?
    I went to rcignition.com but could not find anything.
    Thanks Mike

  13. #138

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    RE: Convert GMS 120 glow to Gas

    If the comments about the pump line were not made, what do you think the odds are that the engine would have installed in the plane that way.
    To many people have the attitude of what is the MINIMUM I can do and still fly my plane. The correct attitude should be What are ALL the things I can do to to my plane to keep it flying.
    Remember the RF signal is in MICRO volts and an engine that quits in a torque roll is breakfast food.....pancakes
    DO it right, DO IT the best you can and DO IT ONCE.......
    TKG
    Too much power is just about right.

  14. #139
    Moderator w8ye's Avatar
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    RE: Convert GMS 120 glow to Gas


    ORIGINAL: miker42

    Hi Capt,n
    Where can I get a shielded plug conector like that?
    I went to rcignition.com but could not find anything.
    Thanks Mike
    http://www.ch-ignitions.com/#cat

    I couldn't find the Rimfire but if you call them they can fix you up


    Edited to correct the fact that I had answered a different post than I thought I was



    Attended the CutFinger Institute of DirtNap University for years but never did graduate....
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  15. #140

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    RE: Convert GMS 120 glow to Gas


    ORIGINAL: tkg

    If the comments about the pump line were not made, what do you think the odds are that the engine would have installed in the plane that way.
    To many people have the attitude of what is the MINIMUM I can do and still fly my plane. The correct attitude should be What are ALL the things I can do to to my plane to keep it flying.
    Remember the RF signal is in MICRO volts and an engine that quits in a torque roll is breakfast food.....pancakes
    DO it right, DO IT the best you can and DO IT ONCE.......
    I agree...do it best the first time....that is if your flying. If Miker is just testing his engine & ignition system, he can at least see what does NOT work on the ground. He may not have the proper fuel line for pulse connector on hand now. But by doing what I said he can at least continue testing on ground ...same as a test stand. Miker...take our advise an do not fly untill all the tips others gave you are taken care of. Have a helper when you fly that can land a airplane with a dead engine. I always flew every drop out of my airplanes in the old days and would glide in. It is good pratice...in case you have a dead engine. By the way, you will find out there are many things that can go bad all of a sudden...that is the odds!!! Good luck and let us know if you run into any trouble. Capt,n
    I never met a engine I did not like !

  16. #141

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    RE: Convert GMS 120 glow to Gas

    I didn't mean to cause all that about the line, I just put that line on to try the engine out, all the lines will be new when it goes in the plane

  17. #142

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    RE: Convert GMS 120 glow to Gas

    Miker42, you did not cause all the replys about the pluse line, Oh and the ignition. We was just helping at the moment. It looks like to me with just a few postings you have made that you are doing very well and can already post photos (something a lot of people cannot do) so to me you are above average for a new person doing some pretty good research & testing already. Keep up the good work...and you did not cause a fuss at all. It was clear who caused any fuss. Capt,n
    I never met a engine I did not like !

  18. #143
    av8tor1977's Avatar
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    RE: Convert GMS 120 glow to Gas

    Sure was...

    AV8TOR
    If it is not SCARY, it is NO WHERE NEAR powerful enough!!
    All R/C planes have expiration dates---> It's just not printed on them anywhere!

  19. #144

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    RE: Convert GMS 120 glow to Gas

    I can see some interesting pictures and lots of posting. I haven't worked on GMS yet since I'm busy building a model engine from scratch which is taking away my interest away from GMS engine. But that doesn't mean I'm not going to work on it.

    Captin, I don't have a picture of the broken ring and I have already replaced it with the new ring. However no damage to any thing when the ring broke. As you said I guess I was lucky

    Miker, are you using needle bearing for the connecting rod? Have you tested the engine yet?

    Borna

  20. #145

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    RE: Convert GMS 120 glow to Gas

    Hi
    No I did not change the bearing , I have ran the engine but I am waiting on a plane I have order.
    I will post when I get it in the air with some pixs
    Thanks Miker

  21. #146

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    RE: Convert GMS 120 glow to Gas

    Thanks Capt,n
    I called ch ignition and they sent me the cap I needed and I have instaled and it works grate
    Thanks Miker

  22. #147

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    RE: Convert GMS 120 glow to Gas

    miker42, when helping others, one is in turn helping yourself! I am glad the ignition is working good. The CH guys are good for exact ignition parts one may need. Best Regards Capt,n
    I never met a engine I did not like !

  23. #148

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    RE: Convert GMS 120 glow to Gas

    Good Morning all from Australia.
    I have been reading alot of threads regarding conversions, but wanted something smaller.
    Back in 2007, Jezmo you stated that you were running a SuperTigre 51 on gas and it runs very well.
    For me this would be the ideal setup, ie: small, inexpensive, hopefully easy to run. Just wondering what your setup was?
    I was thinking of the following:
    SuperTigre51 or ASP52 running a mix of 5:1 for breakin, and 10:1 after, and not changing the bearings initially.
    the RCexcl ignition found at
    http://www.dlenginesaustralia.com/dl...&productId=125

    Questions:
    Did you just keep the bushes?

    What do you think about the walbro wt-644 carby for this, or was the standard carb OK?

    If you went to pin bearings, what size, and what fuel mix did you go?

    What angle did you set the ignition? (I was thinking about 28BTDC-This ignition has auto retard advance which helps with starting)

    Thanks in advance for any replies
    Rob Fonhof
    Melbourne Australia.

  24. #149
    PlaneKrazee's Avatar
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    RE: Convert GMS 120 glow to Gas

    How well does that 160 fx run on gas? RPM ?
    a never-ending battle for truth, justice and the American way


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