OS Engines Four Stroke Camshaft Timing

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OS Engines Four Stroke Camshaft Timing

Рет қаралды 72,868

rcdieselrc

Күн бұрын

Пікірлер: 41

@EnglishTurbines 2 ай бұрын

Great video, easier to show whats needed inside a CAD drawing....Thank you...🤔😏😀🇬🇧

@rc4j Ай бұрын

Just what I needed...very informative and clear...good visual...thank you

@tedsmith6137 3 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.

@rcdieselrc 3 жыл бұрын

Google is all knowing. Glad it was helpful.

@jessyemandaroux5013 2 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!

@johnmcclain3887 3 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.

@JD2010whisperer 11 жыл бұрын

Excellent. Some day when I get my engines made, I would be thrilled to see videos made describing them in this detail.

@MauriceBlair 8 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

@sergiorivera4571 3 жыл бұрын

Fantastic Explanation Thank you Your Friend from Mexico

@car6on14 11 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

@madmarkstoys 9 жыл бұрын

YOU ARE THE MAN !! LOVE IT GOOD JOB YOU HELPED ME OUT BIG TIME!!!

@rcdieselrc 11 жыл бұрын

If using more nitromethane in the fuel or large props use the thicker one.

@car6on14 11 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....

@bendavis555 11 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.

@avitor500 10 жыл бұрын

Great video man! Thanks. What 3d program do you use to modeling this 3d model?

@rcdieselrc 10 жыл бұрын

This is SolidWorks.

@avitor500 10 жыл бұрын

Thanks a lot

@cazabeto4898 4 жыл бұрын

Grato. Thanks.

@bendavis555 11 жыл бұрын

Great videos! Keep it up:)

@markdigregoriosr1394 6 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?

@rcdieselrc 6 жыл бұрын

Strange that they couldn't get it sorted out. This would have been what 25 years ago?

@markdigregoriosr1394 6 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.

@techlife9665 3 жыл бұрын

Is it a worm gear combination ???!?!! Is the crank shaft is the worm and the cam attached with gear ???!?!!!

@rcdieselrc 3 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.

@maxdcard 6 жыл бұрын

hello friend, how are you? give me some help pls, and in this exact alignment do I have to adjust the valves?

@rcdieselrc 6 жыл бұрын

To adjust valves set the crank to top dead center of compression stroke. Both rockers will be unloaded at this point.

@markmacmillan1255 10 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.

@rcdieselrc 10 жыл бұрын

If it's not an RC engine I suggest you fine the proper manual to set the cam correctly in your engine.

@madeljacky 8 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.

@rcdieselrc 11 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.

@projectzerofuel4802 7 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 ?

@rcdieselrc 7 жыл бұрын

Hundreds of hours involved in modeling an engine accurately. This model is the 5cc FS-30S.

@jimzeleny7213 3 жыл бұрын

@@rcdieselrc I guess that means "no".

@markdigregoriosr1394 6 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.

@rcdieselrc 6 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.