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HomeAircraftHelicopterEngines Plugs Mufflers Fuel › YS 50 St problem, Need help
03-09-2010 02:23 AM  8 years agoPost 21
gouki

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philippines

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i only use the oven for removing the bearings. the hair drier is enough for the liner on my os50hyper. when removing the liner on the ys50, it has to be really hot for the liner to slide out? thanks! i am asking because am considering a ys56 in the near future

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03-09-2010 02:33 AM  8 years agoPost 22
jac5304

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Mount Juliet, Tn - USA

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I'll put her in the oven tomorrow. Thanks again for all the replies. I just hope the liner and ring is all that's wrong with it. I think everything else should be fine since it was a new engine.

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03-09-2010 02:35 AM  8 years agoPost 23
TMoore

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Cookeville, TN

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Take all of the plastic stuff off of the engine before it goes in the oven. If this were mine I would have a spare set of bearings on the shelf just in case you don't like what you find.

TM

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03-09-2010 02:38 AM  8 years agoPost 24
jac5304

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Mount Juliet, Tn - USA

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Okay I'll go ahead and order bearings too. I'll need them sooner or later anyway.

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03-09-2010 03:50 AM  8 years agoPost 25
Jgatorman

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Birmingham, AL

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I would highly suggest you listen to Bobby Watts when it comes to rebuilding your engine and according to his video on smack talk if your liner is stuck you simply place a towel in the exaust port and turn the crank and it will pop right out

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03-09-2010 04:27 AM  8 years agoPost 26
TMoore

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Cookeville, TN

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I would highly suggest you listen to Bobby Watts when it comes to rebuilding your engine and according to his video on smack talk if your liner is stuck you simply place a towel in the exaust port and turn the crank and it will pop right out
A YS isn't an OS.

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03-09-2010 04:43 AM  8 years agoPost 27
Wingman77

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Pulaski Tennessee

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and just what is that supposed to mean?

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03-09-2010 04:46 AM  8 years agoPost 28
TMoore

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Cookeville, TN

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YS cylinder to case fits are much tighter than OS so it is difficult at best to use the piston to push the cylinder out whether you use a towel, rag or what have you unless you heat it.

Have you rebuilt many YS engines?

TM

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03-09-2010 06:05 PM  8 years agoPost 29
jac5304

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Mount Juliet, Tn - USA

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I also have a OS hyper that needs a new liner and ring. When I took it apart the liner just slid right out. No heating required. But the ys liner will not budge.

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03-09-2010 06:37 PM  8 years agoPost 30
Wingman77

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Pulaski Tennessee

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have you tried heating the YS?

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03-09-2010 07:04 PM  8 years agoPost 31
savaspolitis

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Greece - Athens -Spata

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Hello i thin that the Ys manual says to start at 1,5 turns the high needle valve and 1 turn the low needle. If you were at 1,25 it was to lean.

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03-09-2010 08:08 PM  8 years agoPost 32
Jgatorman

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Birmingham, AL

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hmmmmmmmmm a little lost in the thread huh

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03-10-2010 12:46 AM  8 years agoPost 33
jac5304

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Mount Juliet, Tn - USA

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I'm going to heat it up tonight. I'll let you know how it comes out.

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03-10-2010 01:26 AM  8 years agoPost 34
jac5304

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Mount Juliet, Tn - USA

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30 minutes at 350 and the liner pushed out easily with a wooden dowel rod. Will check it out tomorrow. Too hot to tangle with right now.

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03-10-2010 02:29 AM  8 years agoPost 35
TMoore

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Cookeville, TN

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30 minutes at 350 and the liner pushed out easily with a wooden dowel rod. Will check it out tomorrow. Too hot to tangle with right now.
Congrats on getting it out, the fun part is next.

TM

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03-10-2010 09:04 AM  8 years agoPost 36
alfred

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Australia, New South Wales, Mid North Coast

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I hope you guys are talking Fahrenheit and not Celsius.
All the YS engine I have done just required 150 ~ 180 degrees Celsius for 10 minutes.
My YS50 still took a bit encouragement by wrapping a kitchen towel around my finger and pulling it from the top..inside.

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03-10-2010 11:22 AM  8 years agoPost 37
jac5304

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Mount Juliet, Tn - USA

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Using the Fahrenheit scale.

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HomeAircraftHelicopterEngines Plugs Mufflers Fuel › YS 50 St problem, Need help
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