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Author Topic: Stihl oil seal removal  (Read 4512 times)

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Offline Roundhead

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Stihl oil seal removal
« on: October 30, 2013, 10:17:39 AM »
I have been searching around for an alternative tool to remove oil seals but nothing is showing up. I know the seals can be removed without the special tool but I don't really want to mess anything up. Do you all use the special tool or can this be done being extremely cautious with  a small flat screwdriver or pick?

Offline AdkStihl

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Re: Stihl oil seal removal
« Reply #1 on: October 30, 2013, 12:43:42 PM »
More than 1 way to skin a cat. I use a drywall screw most of the time. A modified screwdriver works well too.
J.Miller Photography

Offline nmurph

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Re: Stihl oil seal removal
« Reply #2 on: October 30, 2013, 12:59:39 PM »
Here's what I use...026 seals are a bit of a challenge, but I can get them out with this-

 

Don't cheap out on the screwdriver. The first one (pictured on the left) was a cheap-o and the hook broke off. I had to use a magnet to fish the piece out of the bearing. I made my second one with a Snap-On and I have removed hundreds of seals with it. I ground it to the same size and it works well. I don't know what happened to the small one in the pic, but I have not needed it.

I have also seen pics of pullers made from hawk-billed knives.

Offline Roundhead

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Re: Stihl oil seal removal
« Reply #3 on: October 30, 2013, 01:05:53 PM »
Here's what I use...026 seals are a bit of a challenge, but I can get them out with this-

 (Image hidden from quote, click to view.)

Don't cheap out on the screwdriver. The first one (pictured on the left) was a cheap-o and the hook broke off. I had to use a magnet to fish the piece out of the bearing. I made my second one with a Snap-On and I have removed hundreds of seals with it. I ground it to the same size and it works well. I don't know what happened to the small one in the pic, but I have not needed it.

I have also seen pics of pullers made from hawk-billed knives.
thanks. I guess you just break through the rubber part and hook onto the metal to remove it. seems pretty simple. and I guess the danger is damaging the metal surface. care to elaborate on the procedure? I'm a little slow

Offline nmurph

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Re: Stihl oil seal removal
« Reply #4 on: October 30, 2013, 01:21:16 PM »
You've got it. If you make a hook like I did, make sure you radius all of the edges so you don't scratch the crank.

I jamb it straight down against the crank and wiggle it in. Then twist it a little and pry up. Then move around about 1/3 of the way and repeat. Then repeat if necessary. Most seals will pop out the first time you pry.

Offline MidWestTree

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Re: Stihl oil seal removal
« Reply #5 on: October 30, 2013, 03:24:41 PM »
The do it yourself hook tool works well. As an alternative I find that drilling a small hole in the outer metal rim of the seal and starting a screw down into it until it gets a good bite allows you to pull it that way by using your tool of choice to pry up on the screw and pop the seal up and out.

Offline smmyb123

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Re: Stihl oil seal removal
« Reply #6 on: February 09, 2019, 12:33:19 AM »
Use whatever small prying tool works for you. Like others have previously stated, just dont scratch the crank. I have found that tapping the seal inward with a socket and hammer breaks the bond and makes it much easier to pry out.

Offline joe_indi

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Re: Stihl oil seal removal
« Reply #7 on: February 09, 2019, 10:26:33 AM »
Use any suitable tool to tap a hole in the mettalic portion of the seal and twist the tool in all directions to bend the outer portion of the seal inwards. Repeated thrice more to form a cross will loosen the seal's outer from its seat and it will be asily removable


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