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Author Topic: flywheel nut  (Read 637 times)

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Offline snap1946

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flywheel nut
« on: Sat 4 Jan 21:11 2020 »
can any one help with a 1990 model 115 flywheel nut torque
                                  snap

Offline Red

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Re: flywheel nut
« Reply #1 on: Sun 5 Jan 09:37 2020 »
If you're anywhere near Mt Gravatt or Bracken Ridge TAFE, they have all ( most of) the workshop manuals for most engines...in the Library.

Hope this helps, Red

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Offline crabby1

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Re: flywheel nut
« Reply #2 on: Sun 5 Jan 17:51 2020 »
On what engine brand are you asking about?

Do you know what size the thread or nut is?

Usually with 1/2 drive socket on 115hp it is one foot on engine head and hard as can get it.
Or 150hp use 2 feet.

Is there a key way on the crank to knock the head of nut in to lock it  in place there?

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Offline snap1946

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Re: flywheel nut
« Reply #3 on: Sun 5 Jan 18:24 2020 »
i thought some one might have a manual  on a 1990   115 evinrude


Offline mangajack

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Re: flywheel nut
« Reply #4 on: Sun 5 Jan 18:47 2020 »
Usually with 1/2 drive socket on 115hp it is one foot on engine head and hard as can get it.
Or 150hp use 2 feet.

Is there a key way on the crank to knock the head of nut in to lock it  in place there?

Probably the worst bit of advice anyone could offer.

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Offline crabby1

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Re: flywheel nut
« Reply #5 on: Tue 7 Jan 04:22 2020 »
Yes was useless info ;)
Get you 1 5/16" socket and air rattle gun and 2 chugga's ::)

Main part was brand of engine as only guessing otherwise.

100 ft/lb :) dry

Personally would replace the nut as well as 30 year old engine and threads maybe stretched and the above torque may not be sufficient.

3 items hold the flywheel in correct position.

Key and keyway has timing position, the taper on shaft is main way to stay in position but requires the nut to be tight otherwise on starting or powering on or off fast the key will shear.

Not qualified mechanic or comedian and my advice is worth what you paid for it ;)

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Online Fishy mick

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Re: flywheel nut
« Reply #6 on: Tue 7 Jan 10:14 2020 »
Pi$$ Funny Crabby.
Priceless info.
Mick
Not all tools are usefull
Nappies and politicians should be changed regularly for the same reason.

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Offline crabby1

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Re: flywheel nut
« Reply #7 on: Tue 7 Jan 12:33 2020 »
Never hurts to smile at times.

Not many cracking jokes on here like when I joined ages ago.
In person a joke is easier to tell than a forum.

100ftlb is fair effort for to tighten while securing flywheel at same time.

Hope it goes back together OK.

1990 was close to change over in models  so a  need check serial number for specs and ordering parts. Older model would have points I would replace while flywheel is off

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Offline snap1946

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Re: flywheel nut
« Reply #8 on: Tue 7 Jan 18:13 2020 »
this the model #