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99 GT40- Reverse or Standard Rotation? |
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DHMcFadin 
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Joined: May-27-2019 Location: Austin, Texas Status: Offline Points: 312 |
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 Topic: 99 GT40- Reverse or Standard Rotation?Posted: November-19-2019 at 12:08am |
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Hey CCF,
I cannot find the serial number on my 1999 GT40. Is my engine reverse rotation or standard rotation? Thank you! |
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Jonny Quest
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Joined: August-20-2013 Location: Utah--via Texas Status: Offline Points: 2840 |
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Posted: November-19-2019 at 12:14am |
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A GT-40 is standard rotation. You also likely have the PCM 1.23:1 transmission. A right-hand propeller with the "gear reduction" 1.23:1 PCM transmission = standard engine rotation.
 This pic is from the 1999 owners manual from the reference section on this site. Note the firing order. For a " standard rotation " or left-hand engine, 1-3-7-2-6-5-4-8 is the firing order. For a "Reverse Rotation" or right-hand engine, 1-8-4-5-6-2-7-3 is the firing order. JQ |
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DHMcFadin
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Joined: May-27-2019 Location: Austin, Texas Status: Offline Points: 312 |
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Posted: November-19-2019 at 12:22am |
Thank you! |
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Jonny Quest wrote: