KG7 torquing flywheel nut?

This topic has 10 replies, 7 voices, and was last updated 8 years, 11 months ago by johng.

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May 17, 2015 at 10:11 am #1516
phil
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US Member - 2 Years
What socket or other tool do I need with my torque wrench to tighten the flywheel nut?
While I’m here what is the correct torque?

http://www.omc-boats.org
http://www.aerocraft-boats.org
May 17, 2015 at 11:18 am #16194
jpatti75
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US Member - 1 Year (includes $3 online payment fee)
Here is the official tool, Phil:

http://store.oldmercs.com/category_s/234.htm

Correct torque according to the Mercury Master Manual is 60 ft. Lbs.

JP
May 18, 2015 at 1:27 am #16270
richardg
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US Member - 1 Year (includes $3 online payment fee)
They also recommend an external star washer under the flywheel nut.
May 18, 2015 at 1:30 am #16274
legendre
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quote jpatti75:

Here is the official tool, Phil:

http://store.oldmercs.com/category_s/234.htm

Oh good grief! What ever could have justified that?!

It looks like it accepts a recoil ratchet gear.. is that what’s going on, here?
May 18, 2015 at 2:02 am #16280
jpatti75
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US Member - 1 Year (includes $3 online payment fee)
Hahh, funny thing is that I don’t use that tool. Per a very knowledgeable Merc guy around here, I just protect the nut with with a piece of canvas strap and tighten the nut down down good with a monkey wrench. Scientific, nope … but I’ve never had an issue with the couple Mercs I’ve had with that annoying nut.

As for the nut itself, the recoil pawls engage it when starting the motor. Interesting recoil concept…I’ll leave it at that.
May 18, 2015 at 2:16 pm #16332
phil
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US Member - 2 Years
Thanks, jpatti, that’s how I got the nut off. How long an adjustable wrench, how many hits with how heavy a hammer?

http://www.omc-boats.org
http://www.aerocraft-boats.org
May 18, 2015 at 2:19 pm #16335
phil
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US Member - 2 Years
I’m sure it’s the only KG7 I will ever work on. A tool that price for one short job just does not seem right. All thanks to Karl K. And his wacko ideas, full time genius, part time wacko.

http://www.omc-boats.org
http://www.aerocraft-boats.org
May 18, 2015 at 3:04 pm #16347
dave-bernard
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US Member - 1 Year (includes $3 online payment fee)
Make one flat plate make square for torque wrench 2 holes for boles to line up with flywheel nut.
May 18, 2015 at 3:06 pm #16348
RICHARD A. WHITE
Participant
Lifetime Member
I made a tool that will remove both sizes of this wonderful dual purpose flywheel nut..Works well…

Drill 9 holes, one pc hex stock of about 5/8 assemble and whallah!

http://www.richardsoutboardtools.com
classicomctools@gmail.com
May 18, 2015 at 6:27 pm #16362
phil
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US Member - 2 Years
Thanks, gentlemen!

http://www.omc-boats.org
http://www.aerocraft-boats.org
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