Author Topic: Removing flywheel  (Read 151 times)

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Offline Giles

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Removing flywheel
« on: April 02, 2015, 02:36:00 pm »
Any time that I need to remove a flywheel, I try a simpler method first.
Over the years, I have found that you can loosen the flywheel nut until it's flush with the crank threads.
With a helper, support the weight of the chainsaw by the flywheel, and have your helper tap the flywheel nut.
If this doesn't work, look at the surface behind the flywheel, determine if it's metal or plastic.
If it's plastic, find a suitable piece of flat metal to use as a backup.
You can use a large flat blade screwdriver or a small crowfoot for the next step.
Place the screwdriver beneath the flywheel, preferably under the thick part of flywheel and the flat piece of metal, or case.
Twist or pry gently while TAPPING the flywheel nut with a small hammer.
Caution and common sense must be used to avoid damage.
In most cases, the flywheel will pop free with two or three taps but if not, you may have to use puller.
I am not necessarily recommending this procedure, just describing the way I have done it for many years.

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Offline countryhog

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Re: Removing flywheel
« Reply #1 on: October 27, 2015, 09:14:06 am »
I agree. got so tired of pounding on the crank end (with nut flush) and then having to either replace the nut or dress the threads that I started looking for another method. happened to spot my small pry bar and tried it under the flywheel while tapping. voila, success. always shoot the shaft/flywheel interface with kroil before even starting. not always necessary probly but that's how a do it. even tough ones have come off easily.
now is never here but the past is always present.
semper fi ya'll

Offline The Ripper

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Re: Removing flywheel
« Reply #2 on: December 06, 2015, 11:05:04 am »
one or two taps on clutch side and flywheel  pops loose.

Offline old guy

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Re: Removing flywheel
« Reply #3 on: December 06, 2015, 05:19:28 pm »
Yeah, that works most of the time, last summer I had stihl 360 pro that I suspected an air leak, two of us with a little experience at this stuff could not get that flywheel off.
  Finally took it to my dealer who had a puller, he gave that puller quite a wack and it came off.
I found the air leak back there.

     John
 

Offline Cut4fun .

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Re: Removing flywheel
« Reply #4 on: December 06, 2015, 05:52:30 pm »
stihl common one I use a homemade one Al Smith gave me.  He makes them.  New oem $20 under

stihl for 660 poly flywheel I have oem and it also worked on the dolmar 166 and thinking maybe the stihl 084.

No husky one yet as I just knock on them and poulan etc.

I have also used a 3 jaw puller before.

OEM husky flywheel knockers.

Flywheel removal tool
(coarse thread)
For all models
Part. No. 504 91 08-07

Flywheel removal tool
(fine thread)
For all models
Part. No. 502 51 94-01

I have both but the 372.....and most current models are fine thread.  If I remember correctly, the 266 and some less expensive Poulans are coarse.  Regardless, they are not expensive and work very well.

REDNECK Saw Repair Getter Done

Offline mdavlee .

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Re: Removing flywheel
« Reply #5 on: December 06, 2015, 07:58:12 pm »
I bought a stihl one from eBay. I use a 2 jaw on the huskies.

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Re: Removing flywheel
« Reply #6 on: December 06, 2015, 08:56:24 pm »
I use the hammer method on the end of the flywheel also.   The most stubborn flywheels I have come across so far have always been on Dolmar saws that I have.   It takes some time of prying and tapping but eventually they all come loose.
PP 505, 475, 445.

Offline exSW

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Re: Removing flywheel
« Reply #7 on: December 06, 2015, 09:48:08 pm »
I used a ball joint fork on a Stihl 440 once. Popped right off.

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Re: Removing flywheel
« Reply #8 on: December 06, 2015, 10:01:26 pm »
I used a ball joint fork on a Stihl 440 once. Popped right off.

Were you able to get the fork wedged or did you use it as a pry bar.
PP 505, 475, 445.

Offline exSW

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Re: Removing flywheel
« Reply #9 on: December 06, 2015, 10:14:33 pm »
Wedged it,light tap and off she came. I was a little...perplexed(?) by the time I got to this method.

 

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