ABC or ringed?  
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All Forums >> RC Airplanes >> Pattern Flying >> Classic Pattern Flying >> ABC or ringed?
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ABC or ringed? - 7/16/2008 11:28:01 PM   
dhal22


 

Posts: 1052
Joined: 8/28/2006
From: Roswell, GA, USA
Status: online 		I bought another OS .61 SF, no box though. how do i tell if it's an abc vs ringed?

david
       Post #: 1

RE: ABC or ringed? - 7/16/2008 11:35:24 PM   
TFF


 

Posts: 661
Joined: 10/30/2006
From: Memphis, TN, USA
Status: offline 		look inside the exaust port; if you see a small band around the top of the piston about 1/16 in thick, that is the ring. If you see the same material top to bottom of the piston it is ABC.

(in reply to dhal22)
       Post #: 2

RE: ABC or ringed? - 7/16/2008 11:40:01 PM   
8178



Posts: 2931
Joined: 5/25/2004
From: _ , USA
Status: online 		The ABC engine also has a line at the top edge of the piston but the ringed engine band is wider.

< Message edited by 8178 -- 7/17/2008 12:20:06 AM >

_____________________________

Builder and flyer of high performance acrobatic R/C aircraft and a proud member of VR/CS.
Made in China = no sale!

(in reply to TFF)
       Post #: 3

RE: ABC or ringed? - 7/17/2008 12:16:20 AM   
dhal22


 

Posts: 1052
Joined: 8/28/2006
From: Roswell, GA, USA
Status: online 		i'll take a look.

(in reply to 8178)
       Post #: 4

RE: ABC or ringed? - 7/17/2008 12:19:29 AM   
rainedave



Posts: 4990
Joined: 7/21/2005
From: Greensboro, NC, USA
Status: offline 		If it's ringed, and you need to get a new one, you can get it, shipping included, for $13 from:

Frank Bowman

1211 N Allen Ave. Farmington, N.M. 87401-3568

505-327-0696

ringmaster46 ~ at ~ msn.com

Finding a new ABC liner/piston set will be time consuming and pricey.

David

(in reply to 8178)
       Post #: 5

RE: ABC or ringed? - 7/17/2008 2:08:29 AM   
dhal22


 

Posts: 1052
Joined: 8/28/2006
From: Roswell, GA, USA
Status: online 		either way it is in almost new condition. it came with a nice balanced spinner and 2 mufflers. not bad for $80.

david

(in reply to rainedave)
       Post #: 6

RE: ABC or ringed? - 7/17/2008 2:57:53 AM   
dhal22


 

Posts: 1052
Joined: 8/28/2006
From: Roswell, GA, USA
Status: online 		it appears to be ringed. the 'band' or ring at the top is about 1/16" thick.

david

(in reply to dhal22)
       Post #: 7

RE: ABC or ringed? - 7/19/2008 5:57:29 PM   
rainedave



Posts: 4990
Joined: 7/21/2005
From: Greensboro, NC, USA
Status: offline 		I took some photos in case anyone reading this thread wants to see the difference.

The left photo is ringed, and the right one is ABN

David

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

(in reply to dhal22)
       Post #: 8

RE: ABC or ringed? - 7/20/2008 12:26:21 AM   
dhal22


 

Posts: 1052
Joined: 8/28/2006
From: Roswell, GA, USA
Status: online 		thanks david. my understanding of everyone's description was correct. the sf is ringed. i know now that a couple of rf's i have are ABC. i bought them not knowing.

david

(in reply to rainedave)
       Post #: 9

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