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hgmckay
Joined: 23 May 2006 Posts: 397
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Posted: Thu Jul 19, 2007 1:23 pm Post subject: ratio Ident>? |
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Don:
If you have a 912 UL, A, or F, the compression ratio is 9.0:1. On a 912 ULS,
or S it is 10.5:1. This is stated in the Rotax Engine Operators Manual. Call
your Rotax Dealer and give them the S/N of your engine which is located on
top of the right side of the engine (when facing the propeller), near the
magneto end to confirm it.
Hugh McKay
912 UL
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Don G
Joined: 10 Jan 2006 Posts: 156 Location: Central Illinois
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Posted: Thu Jul 19, 2007 2:06 pm Post subject: Re: ratio Ident>? |
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Hugh,
Oops...I shoulda been more specific..The gearbox ratio Is what I am looking for!
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_________________ Don G.
Central Illinois
Kitfox IV Speedster
Luscombe 8A
RV9A |
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Roger Lee
Joined: 10 Jan 2006 Posts: 1464 Location: Tucson, Az.
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Posted: Thu Jul 19, 2007 5:14 pm Post subject: Re: ratio Ident>? |
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Hi Don,
If it's the 912uls, 100 hp then the gear box ratio is most likely 2.43:1
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_________________ Roger Lee
Tucson, Az.
Rotax Instructor & Rotax IRC
Light Sport Repairman
Home 520-574-1080 TRY HOME FIRST
Cell 520-349-7056 |
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hgmckay
Joined: 23 May 2006 Posts: 397
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Posted: Thu Jul 19, 2007 6:17 pm Post subject: ratio Ident>? |
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Don:
The G.B. ration for the 912 UL, A, and F is normally 2.27:1. However, there
is an optional ratio that can be ordered of 2.43:1.
Hugh McKay
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Don G
Joined: 10 Jan 2006 Posts: 156 Location: Central Illinois
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Posted: Thu Jul 19, 2007 6:45 pm Post subject: Re: ratio Ident>? |
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Is there any way to identify which externally>? do they stamp em or anything?
Surely I wont have to pull a rocker cover and turn the prop counting the turns and try to figger it out that way!........will I??
| - The Matronics RotaxEngines-List Email Forum - | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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_________________ Don G.
Central Illinois
Kitfox IV Speedster
Luscombe 8A
RV9A |
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