YS 140L low compression ?  
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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Engine Manufacturers Direct Support Forum >> YS Engines Support >> YS 140L low compression ?
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YS 140L low compression ? - 7/12/2008 7:19:04 AM   
rcpilot_971


 

Posts: 86
Joined: 1/15/2002
From: Rocklin, CA, USA
Status: offline 		I just got a used YS 140L and it seems like it is low on compression I can turn the prop over and over with little resistance im not sure how much compression they should have does any one know what the compression should be at


Thanks Tim
       Post #: 1

RE: YS 140L low compression ? - 7/12/2008 12:00:49 PM   
XMANS


 

Posts: 82
Joined: 8/8/2004
From: HOPPERS CROSSING VICTORIA, AUSTRALIA
Status: offline 		One way is to start the engine and let it run for a minute, then shut it down, let it cool then flip the prop over, if it is still low then most likly a new ring is called for, or the liner is scored and the ring can't seal.
Or if it won't run then it has other issues.

Will YS Service Aus

(in reply to rcpilot_971)
       Post #: 2

RE: YS 140L low compression ? - 7/12/2008 4:05:07 PM   
rcpilot_971


 

Posts: 86
Joined: 1/15/2002
From: Rocklin, CA, USA
Status: offline 		OK I will give that a try thanks


Thanks Tim

(in reply to XMANS)
       Post #: 3

RE: YS 140L low compression ? - 7/13/2008 6:07:56 AM   
rcpilot_971


 

Posts: 86
Joined: 1/15/2002
From: Rocklin, CA, USA
Status: offline 		Well I fired the YS 140 up it did start right up and ran great I ran 20/20 fuel through it with a 17-8 APC and it was turning 8800 rpms ran a tank and a half through it and it ran great

I got this motor and a world models fun 3D with 6 futaba 3151 servos new in box and a reciver and battery all new in box for 175.00 the guy thought the motor was tost and so did I but once I got fuel in it and ran it had lots of compression


thanks Tim

(in reply to rcpilot_971)
       Post #: 4

RE: YS 140L low compression ? - 7/13/2008 6:39:42 AM   
XMANS


 

Posts: 82
Joined: 8/8/2004
From: HOPPERS CROSSING VICTORIA, AUSTRALIA
Status: offline 		Pleased to help

Will YS Service Aus

(in reply to rcpilot_971)
       Post #: 5

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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Engine Manufacturers Direct Support Forum >> YS Engines Support >> YS 140L low compression ?
Page: [1]





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