Flywheel bolts

[1tommygunner1927]

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?

[jpt7779]

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

[1tommygunner1927]

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

Thanks JT.

[skoepp]

Instructions are 11 ft lbs plus 50 degrees so that would be close.
I want to say aprox 25 ft/lbs.

[Mark S]

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

[1tommygunner1927]

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

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.

[1tommygunner1927]

Instructions are 11 ft lbs plus 50 degrees so that would be close.
I want to say aprox 25 ft/lbs.

Yes, that is what the shop manual states....11 ft/lbs or 133 in/lbs, plus 50*.

It was suggested to me to torque the bolts first to 15 ft/lbs, then to 30 ft/lbs., using red locktite. Now all I need to do is find the correct ARP bolt.

[beerdart]

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.

[Mark S]

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.

Technically, it would be 12:08:20. JK

Mark

[beerdart]

Technically, it would be 12:08:20. JK

Mark

Thats digital time I use a dial watch.