Great video, easier to show whats needed inside a CAD drawing....Thank you...🤔😏😀🇬🇧
@rc4jАй бұрын
Just what I needed...very informative and clear...good visual...thank you
@tedsmith61373 жыл бұрын
This was recommended by KZfaq, the day I was given an FS120 for bearing replacement. How serendipitous is that! Answered all the questions I had not got around to asking yet. Thank you.
@rcdieselrc3 жыл бұрын
Google is all knowing. Glad it was helpful.
@jessyemandaroux50132 жыл бұрын
Thank you so much for this very usefull video. I am refurbishing an OS FS 56 suffering of rusty components and worn out bearings. On the rusty surface, I could'nt see where the camshaft dot was situated when disassembling. Thanks to you, by now I know how to do. Your 3D motion system is perfect!
@johnmcclain38873 жыл бұрын
Thanks much, I just rebuilt an OS 61, have to put the cam back in. Very good video, very easy to see, understand. Much appreciated.
@keithcarter9396 Жыл бұрын
excellent graphics and a very clear narrative. Thanks for a very informative post.
@JD2010whisperer11 жыл бұрын
Excellent. Some day when I get my engines made, I would be thrilled to see videos made describing them in this detail.
@MauriceBlair8 жыл бұрын
this video is exactly what I was looking for. I disassembled an OS FS 120 and when I went to reassemble I realized the timing gear had to go in a certain way and I did have a clue. thanks for the video
@sergiorivera45713 жыл бұрын
Fantastic Explanation Thank you Your Friend from Mexico
@car6on1411 жыл бұрын
great fs model, very informative. I am in the process of learning to convert some of my 2 strokes to diesel, hoping that it may be possible to modify the heads.
@juliocesarmonsalvo7442 Жыл бұрын
Excellent
@madmarkstoys9 жыл бұрын
YOU ARE THE MAN !! LOVE IT GOOD JOB YOU HELPED ME OUT BIG TIME!!!
@rcdieselrc11 жыл бұрын
If using more nitromethane in the fuel or large props use the thicker one.
@car6on1411 жыл бұрын
that is what I was afraid of, It just seemed so convenient that all 2 stroke heads have a well centered 1/4 x 32 hole and set bore, thought maybe I could be used to adapt for diesel....
@bendavis55511 жыл бұрын
Do the OS120 FS-E require two head gaskets? I have a rebuild kit and it came with a smaller and a larger thickness head gasket. I'm not sure if I'm supposed to use both or one of the two.
@avitor50010 жыл бұрын
Great video man! Thanks. What 3d program do you use to modeling this 3d model?
@rcdieselrc10 жыл бұрын
This is SolidWorks.
@avitor50010 жыл бұрын
Thanks a lot
@cazabeto48984 жыл бұрын
Grato. Thanks.
@bendavis55511 жыл бұрын
Great videos! Keep it up:)
@markdigregoriosr13946 жыл бұрын
My OS 120SP did this right out of the box. It was sent to Horizon hobby several times without fixing what was wrong. I was even sent a new one that displayed the same rich running condition. I was told by them the super charger needs to be broke in to the point of not creating much boost?
@rcdieselrc6 жыл бұрын
Strange that they couldn't get it sorted out. This would have been what 25 years ago?
@markdigregoriosr13946 жыл бұрын
rcdieselrc yes, I bought the engine as soon as it was available. I even sent them a VHS of the engine going rich when it was tipped upside down pouring out a lot of smoke and quitting.
@techlife96653 жыл бұрын
Is it a worm gear combination ???!?!! Is the crank shaft is the worm and the cam attached with gear ???!?!!!
@rcdieselrc3 жыл бұрын
It's a 2:1 ratio and is a helical gear with a cross arrangement. Worm gears have one or two "teeth" on the worm so the ratio is typically quite high.
@maxdcard6 жыл бұрын
hello friend, how are you? give me some help pls, and in this exact alignment do I have to adjust the valves?
@rcdieselrc6 жыл бұрын
To adjust valves set the crank to top dead center of compression stroke. Both rockers will be unloaded at this point.
@markmacmillan125510 жыл бұрын
i am working on a 125 parallel twin ohc engine no push rod how would i set timing on the cam shaft thanx.
@rcdieselrc10 жыл бұрын
If it's not an RC engine I suggest you fine the proper manual to set the cam correctly in your engine.
@madeljacky8 жыл бұрын
+Mark Macmillan as a rule of the thumb on any four stroke engine no matter how many cylinders it has got if you set the piston on one cylinder to top dead centre, make sure it is NOT the ignition stroke for that cylinder and have both valves rocking, that means as the inlet is opening the exhaust will be closing around the same time (valve overlap) your engine will run.
@rcdieselrc11 жыл бұрын
You'll have to make a new head. There isn't enough material in a stock head to turn it into a diesel head.
@projectzerofuel48027 жыл бұрын
Hello, I m the team manager of a Shell Eco Marathon team, we are searching for a new engine now but we can't find a 3D model of OS GF30 is it possible to send me this CAD model ?
@rcdieselrc7 жыл бұрын
Hundreds of hours involved in modeling an engine accurately. This model is the 5cc FS-30S.
@jimzeleny72133 жыл бұрын
@@rcdieselrc I guess that means "no".
@markdigregoriosr13946 жыл бұрын
I still own my OS 120SP, it ran great on the test stand, but installed in a Goldberg Ultimate every time the bipe was rolled over the engine would quit with a rich condition no matter how tweeked the needle valve was. The aggregation this engine caused me i got out of the hobby of model aviation.
@rcdieselrc6 жыл бұрын
If it's the old one, the pump and/or regulator diaphragms have long ago deteriorated and are stiff. It's happened to most of these at this point. Unfortunately, there are no spares available. If it's an SIII, it probably needs cleaning, but parts are still available if it's more than that.
@markcummings1505 жыл бұрын
video is excellent but audio is crap. speak up.
@martinjohnson93163 жыл бұрын
This is SO useful...thank you very much for posting!