Stihl 045 Crank seals

[JT78]

Ok so I ordered crank seals that were labeled from pro line to fit 045 but the flywheel side is way too big to fit about 24-25mm internal diameter and the crankshaft is roughly 19.6mm in diameter on the flywheel side. Can anyone tell me the correct part number for the seal I might need?

 

[Gaston]

Number 14 in the picture

 

[Gaston]

The 24-25mm inside diameter seal is most likely for the clutch side. As the ipl calls for a 23.8mm seal

 

[Gaston]

9633 003 2210 Is your flywheel side.
9639 003 2690 Is you clutch/pto side

 

[JT78]

9633 003 2210 Is your flywheel side.
9639 003 2690 Is you clutch/pto side

Thank you sir!

 

[Gaston]

Sure thing. Just went through a 045 super about a year ago.

 

[lehman live edge slab]

Pretty certain the 045/056 saws went through changes and when they did the bearings and seals changed as they got newer

 

[Wood Doctor]

I rebuilt a Stihl 045 super about eight years ago. After I got through, it was a heckuva saw. Heavy, yes, but that thing had torque beyond belief.

 

[JT78]

Rebuilding this for a friend of mine it was his dad's saw.

 

[Gaston]

Yes. 045 and 056 share almost all parts. In fact my original ignition was no good. I found an 056 flywheel and installed a new ignition from a ts350/360. Runs great. If I remember correctly the 045 super cylinder is the same diameter as the 056.

 

[Al Smith]

Typical Stihl way of doing things which they obviously did or still do .Both the 045 and 056 do share almost the same seals but they only list the size for the flywheel side which is 20-x 30x5 .The clutch side just the parts number no size given plus the 056 used two different bearings and seals .This is from looking at the IPL's as I've never worked on either .All I know about the 056 is if correct used an odd bar stud which is M10 engine side M8 bar side often used for repairs --unless it was the 052 I'm thinking about .???

 

[Al Smith]

My Lawdy that was like looking for a needle in a hay stack but I found it .This is for the 056 clutch side as follows .Bearing is a grooved ball 17x 42 x 14.5 .Seal is 23.8x 33.4 x 4 .
I tried first the paper IPL then the service manual on micro fiche and finally found it on a CD ROM another web forum administrator sent me . On the 045 according to the CD Rom the clutch side seal is the same but the bearing is 17x 42X 13 .

 

[Al Smith]

I might add on the micro fiche which is a Stihl publication it states during the years of production parts may be changed as to the company's discretion .So there it is in writing .

 

[kanscruzer]

Typical Stihl way of doing things which they obviously did or still do .Both the 045 and 056 do share almost the same seals but they only list the size for the flywheel side which is 20-x 30x5 .The clutch side just the parts number no size given plus the 056 used two different bearings and seals .This is from looking at the IPL's as I've never worked on either .All I know about the 056 is if correct used an odd bar stud which is M10 engine side M8 bar side often used for repairs --unless it was the 052 I'm thinking about .???

m10 /m8 stud was used only on the Magnum 056

 

[Al Smith]

I knew it was on one of them but thanks for the clarity .Every so often they show up on flea bay .

 

[JT78]

Well I got the correct crank seals and I believe I have a bigger problem. The flywheel side is too loose the seal almost falls into the case and will not seal. It is the side that goes into the magnesium part of the case. I am assuming it will take a new case to fix the issue? Anybody have any other cool ideas? I'm ready to tell my friend that this thing would be better to be sold for parts as there are a lot of good useable parts on it. Like the ignition coil as I hear they can be hard to find for these.

 

[Al Smith]

Take a prick punch and "raise " the metal in the seal pocket .In other words make a series of dimples on the face of it .Then use a compound made by Loc-tite called press fit or red Loctite to glue in the seal .That should hold it .

 

[JT78]

Take a prick punch and "raise " the metal in the seal pocket .In other words make a series of dimples on the face of it .Then use a compound made by Loc-tite called press fit or red Loctite to glue in the seal .That should hold it .View attachment 318226

How well will that hold up? I am assuming you have done this before.

 

[JT78]

Also will that work on a rubber seal?

 

[Al Smith]

I've used that method several times .First was on the first Stihl I ever owned which was an 048 with a spun bearing .Second was on a Stihl 038 mag that kept blowing the clutch side seal for some reason .Neither saw has failed .The use of " quick metal press fit " is just a method the machine repair and tool and die makers used .Using that or red loctite if it has to be replaced it will need to be heated to about 400 degrees to release it . A good heat gun will do that in a jiffy .