RE: mvvs 1.60 gasser  
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    • All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Gas Engines >> RE: mvvs 1.60 gasser
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    RE: mvvs 1.60 gasser - 10/24/2003 10:41:21 PM   
    PlaneKrazee



    Posts: 3541
    Joined: 5/15/2002
    From: Westerly, RI, USA
    Status: offline     		Scoubidou,

    I should have mine next week. I'll get some data based on a Bisson Muffler and 17X6, 17X8, 18X6 APC props. I will not be running a Tuned Pipe so we'll see what it can put out for a simple, scale application.

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    (in reply to Scoubidou)
           Post #: 151

    RE: mvvs 1.60 gasser - 10/24/2003 11:17:22 PM   
    Panzlflyer



    Posts: 1940
    Joined: 2/28/2002
    From: Goldsboro, NC, USA
    Status: offline     		I ran the Mvvs with the graphite piston,Square Ign box but Older style carb on a H9 Edge just fine even before break in.
    Not unlimited vert but about what Ive seen from a 1.20.
    Apc 18/8 seemed best as per PE.
    Bisson Pitts muffler.
    I did ream out the carb which helped a lot.
    Unfortunately the H9 Edge SUCKS and has since been given away!!!
    I have a freind that ran the never engine with stock muffler and a TF prop which totally ruined its performance.......didnt even come close to mine and he was disapointed until he changed those items.
    Pe knows what hes talking about. Pay heed.
    My 2cw

    (in reply to PlaneKrazee)
           Post #: 152

    RE: mvvs 1.60 gasser - 10/25/2003 9:55:54 PM   
    JimRoss



    Posts: 1127
    Joined: 2/18/2003
    From: Humble, TX, USA
    Status: offline     		Pe:
    I got the engine test stand built and mounted the 160 on it, hooked up the ignition, charged the battery, fueled the tank, clamped it all down, and the damned thing wouldn't start. After about five minutes of cranking with an electric starter, it finally spit and sputtered to life. Backfired several times, finally took off running,(Poorly). Took it to full throttle, adjusted the high and low speed mixtures and got it cranking real good. About one minute into the run the engine started spitting and acting like it was missing. Ran real bad and finally quit all together. On successive starts, same thing happened. run ok for about a minute, then real badly, and finally quit. Tore carbueretor off and dismantled for cleaning. Blew out all passages and screens, reassembled and put back on engine. Same story. Ran good for little bit then quit. Now, I can't hardly get it to start at all. Suspected battery on ignition so I changed it, same thing happened. Gave up, put engine on shelf, played with another engine that runs good.

    I am out of ideas on this one. Is the placement of the ignition pickup critical as far as location in bracket? Moved it slightly forward and seemed to help briefly but resulted in same problem. Don't know if ignition is bad or if it is a fuel problem. Mixture needles did not seem to change anything at all when engine was running poorly.
    Right now this thing is a $300.00 sinker.

    Please help if you can think of anything to try. All help is appreciated.

    Jim Ross

    < Message edited by JimRoss -- 10/25/2003 3:57:37 PM >


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    (in reply to pe reivers)
           Post #: 153

    RE: mvvs 1.60 gasser - 10/26/2003 8:53:38 AM   
    pe reivers



    Posts: 2771
    Joined: 1/23/2002
    From: Arcen, , NETHERLANDS
    Status: online     		Jim,
    It seems that the ignition of this engine went off to the eternal hunting fields for one reason or another. (check out sensor magnet power first. It should be quite strong)
    If you are the original owner, and there is no mechanical damage, it will probably be covered by warranty if the engine is still young.
    If not, replacing the ignition probably solves your problems, because there seems nothing wrong with the engine itself, (if diagnose from this distance can be trusted)
    In a good setup, the sensor tip should just about cover the magnet completely, but this is not very critical.
    Since Morris complains about my US activities, I will not comment here on commercial solutions for your problem, just to stay on the safe side of legality.

    _____________________________

    Pe, Dealer for MVVS, MTW and Mejzlik; www.mvvs.nl
    There is sanctuary in analisys.

    (in reply to Patriot)
           Post #: 154

    RE: mvvs 1.60 gasser - 10/26/2003 11:22:03 PM   
    pe reivers



    Posts: 2771
    Joined: 1/23/2002
    From: Arcen, , NETHERLANDS
    Status: online     		Scou,
    The HP calculations I, and thrustHP use are based on the Boucher-Abbot formulae, and are the same as you can see.
    thrustHP however, just cannot be used for thrust calculations, as it disregards propellor pitch. A good thrust estimate is six times the HP figure. Reason: thrust times prop wash speed times constant equals horsepower. Prop wash speed is related to propellor pitch.

    Aerobatic fliers use the smaller, high pitched props, whereas warbirds are better off with the larger and slightly lower pitched props. That has to do with the needed prop wash over the tail feathers of the aerobatic plane, to provide sufficient control at low flight speeds
    The larger prop has a lower prop disk load, and thus a higher efficiency, due to a lower prop wash speed to ambient air ratio. That is what the war bird and 3D flier needs, because the fuse is not nearly as sleek as the one in the aerobatic plane., unless you want to race Reno style.
    The 3D flier needs low wash speed to keep fuse resistance as low as possible, but a large propwash area, so his ailerons and tail feathers are engulfed in it as much as possible in order to provide control at zero forward speed.

    _____________________________

    Pe, Dealer for MVVS, MTW and Mejzlik; www.mvvs.nl
    There is sanctuary in analisys.

    (in reply to Scoubidou)
           Post #: 155

    RE: mvvs 1.60 gasser - 10/30/2003 6:20:13 PM   
    Scoubidou



    Posts: 1566
    Joined: 7/7/2003
    From: Boisbriand, QC, CANADA
    Status: offline     		Hello,
    1) Does someone try the light Lithium-ion or li-poly pack for ignition?
    2) What is the minimum mamp recommended pack to supply the MVVS1.6 ignition?

    I got my red head last week and will post my tach reading soon...
    Scou.

    (in reply to pe reivers)
           Post #: 156

    RE: mvvs 1.60 gasser - 10/30/2003 6:40:08 PM   
    pe reivers



    Posts: 2771
    Joined: 1/23/2002
    From: Arcen, , NETHERLANDS
    Status: online     		Scou,

    Purdy eh....
    Did the second one limber up?

    The mAh that is recommended as minimum is 1200.
    Trouble with the LiPo packs is the 3.5V, which is too low. 7V is too much, and needs a output voltage regulating cirquit, possibly with a large capacitator to level off current spikes.

    _____________________________

    Pe, Dealer for MVVS, MTW and Mejzlik; www.mvvs.nl
    There is sanctuary in analisys.

    (in reply to Scoubidou)
           Post #: 157

    RE: mvvs 1.60 gasser - 10/30/2003 7:57:12 PM   
    GBR2


     

    Posts: 495
    Joined: 12/25/2001
    From: Snohomish, WA, USA
    Status: offline     		Pe said that he thought the 16x12, 18x8 and 18x10 were best with this engine. My question is, with these sizes, which brand of prop performs best with the engine?

    < Message edited by GBR2 -- 10/30/2003 7:57:53 PM >

    (in reply to Herby 1)
           Post #: 158

    RE: mvvs 1.60 gasser - 10/30/2003 9:09:46 PM   
    PlaneKrazee



    Posts: 3541
    Joined: 5/15/2002
    From: Westerly, RI, USA
    Status: offline     		Scou,

    Where did you get your engine from?

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    AMA11123

    (in reply to Scoubidou)
           Post #: 159

    RE: mvvs 1.60 gasser - 10/30/2003 9:42:59 PM   
    Scoubidou



    Posts: 1566
    Joined: 7/7/2003
    From: Boisbriand, QC, CANADA
    Status: offline     		Hi guys,
    1) Pé, my body will try to heat his engine this week with a heat gun to move up that piston.

    2) minimum 1200mamp. OK, i am going to use the Duralite Li-ion 1400mamp(79g ) with a voltage regulator 7.4 to 5.1 volt;
    ref
    http://www.duralitebatteries.com/batteries-ion.html#DURALITE%20PLUS

    3) Skypilot, I bought my 2 engines (my friend needed one) from Pé Reivers.
    Scoubidou

    (in reply to PlaneKrazee)
           Post #: 160

    RE: mvvs 1.60 gasser - 10/30/2003 10:05:43 PM   
    Marek G


     

    Posts: 10
    Joined: 10/31/2002
    From: Warsaw, POLAND
    Status: offline     		I just bought 1.6 MVVS and I can't start it.
    I did everything as in manual, got the fuel, set of 4 charged NiMH giving 4,8 V, flipped the prop first without power on few times, then with choke closed, then with ignition on couple dozen times and it won't start.

    Any sugestions?

    Thanks, Marek

    (in reply to Patriot)
           Post #: 161

    RE: mvvs 1.60 gasser - 10/30/2003 10:15:48 PM   
    Marek G


     

    Posts: 10
    Joined: 10/31/2002
    From: Warsaw, POLAND
    Status: offline     		How can I read RPM's from this sensor output?
    I wold like to connect it to PC.

    Marek

    (in reply to Marek G)
           Post #: 162

    RE: mvvs 1.60 gasser - 10/31/2003 2:48:54 AM   
    JimRoss



    Posts: 1127
    Joined: 2/18/2003
    From: Humble, TX, USA
    Status: offline     		I need a new (or used) ignition system to run on my MVVS 1.60. Anyone have anything for sale or trade?
    PM, email, call, carrier pigeon, smoke signal,UHF, UFO, or pony express, all will be answered.


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    Of All the people I know, you're one of them.

    (in reply to Marek G)
           Post #: 163

    RE: mvvs 1.60 gasser - 10/31/2003 3:29:42 PM   
    JimRoss



    Posts: 1127
    Joined: 2/18/2003
    From: Humble, TX, USA
    Status: offline     		Pe:
    Trying to upload images of the engine.

    Attachments
    Click to see fullsize image.
    Click for fullsize         		Click to see fullsize image.
    Click for fullsize         		Click to see fullsize image.
    Click for fullsize         		Click to see fullsize image.
    Click for fullsize



    _____________________________

    No matter where you go, there you are.
    Of All the people I know, you're one of them.

    (in reply to pe reivers)
           Post #: 164

    RE: mvvs 1.60 gasser - 10/31/2003 4:58:54 PM   
    PlaneKrazee



    Posts: 3541
    Joined: 5/15/