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Thread: Flywheel bolts
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03-01-2011, 05:36 PM #1
Flywheel bolts
Question for the experts:
I want to do away with the "torque to yield" bolts for the flywheel. The stock bolts are flanged 8mm/1.25 and are rated at 10.9 (grade eight). I don't want to use a torque angle gauge.
Is this doable, and if so, what torque value should be applied? 25-30 ft/lbs? Red locktite 272?
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03-01-2011, 10:27 PM #2
Bob,
Here's the link I told you about: Bolt Depot - Nuts and Bolts, Screws and Fasteners online
and
ARP-bolts.com | Find an ARP Dealer Near You
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03-01-2011, 10:41 PM #3
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03-02-2011, 01:39 PM #4
Instructions are 11 ft lbs plus 50 degrees so that would be close.
I want to say aprox 25 ft/lbs.
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03-02-2011, 02:11 PM #5
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A torque angle gauge is $14 at Summit racing. You'll need one for several other fasteners on the 4-tec motor. A tty bolt is designed differently than a regular bolt and will have a more uniform and higher clamping force. Obviously, the engineers at Rotax felt it necessary to use a tty type bolt for the flywheel application. Realizing the expense and time involved if a flywheel bolt were to fail, why would you not just go with the recommended tty bolts?
Mark
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03-02-2011, 06:28 PM #6
Because the original flywheel bolts were removed & re-installed by the SeaDoo tech, I need to change them out & I'd rather use ARP bolts which have a higher rating than grade eight (stock bolts are 10.9 = grade eight), using red locktite 272, torqued to 25-30 ft/lbs and be done with it.
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03-02-2011, 06:35 PM #7
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03-02-2011, 06:52 PM #8
Buy the kit #295501043 $10.11 for the complete kit six bolts and instructions.
Torgue to 11 ft/lbs then put the wrench @ 12:00 and turn to 12:10 and your done.
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03-02-2011, 07:00 PM #9
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03-02-2011, 07:04 PM #10
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