oil on the good foot

[DEEBS11]

Bingo! . Must be directional to pull oil in towards the motor. You can actually see the directional ribs in this picture (stock "split_the_case" type seal).

[speedlimit85]

JAT Are the stock crank seals directional ?

an arrow on the original...yes...hmmm

[speedlimit85]

Agreed, but this link explains what I mean by directional.

https://www.tr-register.com.au/Files/technical/oil-seals.htm

I believe it looked plain (bi-directional).

[speedlimit85]

Use a dremel tool with a cutoff wheel and a steady hand, only cut half way through the thickness, then using a small straight pick or sharp scratch awl inline with the crankshaft right at the score line, carefully tap the point of the pick/awl in between the sleeve and the crank to split the sleeve off of the crank.

The seal is 32x 48 meaning there are less than 16 mm to fit a dremel without cutting into the case. Is that available or possible?

[Schming]

The seal only goes on one way.

Agreed, but this link explains what I mean by directional.

https://www.tr-register.com.au/Files/technical/oil-seals.htm

[speedlimit85]

JAT Are the stock crank seals directional ?

The seal only goes on one way.

[speedlimit85]

The bike runs great and the seal and sleave worked for 10.000 mi. It was dry in there and I felt and looked- I remember a smear under the timing plate felt and smelled like burnt rubber. Maybe the seal was degrading against the sleave at the outer edge to the second lip?

I have to try another seal before attempting to remove a metal sleave from the crank in a small space.

I had a leak repair at the oil return and ran low on oil during these 10.000 mi I don't know but a seal should stop oil at most temp, pressure, grade quality, quantity...and for more miles.

No one else is gonna fix it. so I gotta do it with your help.

[Schming]

JAT Are the stock crank seals directional ?

[bikerphil]

Hey Eric just a thought, does your engine run smoothly or is there any excessive vibration? The latter may be the crankshaft bouncing around causing the oil to get past the seal. If a bearing is worn and/or the oil is too thin, I would think this could be possible.

[Schming]

That seal and got 2 more coming. I sanded wrong but just the edge, electric tape seems strong to protect it if I can cover the edge cone and remove after seal is in.

How to remove the sleeve if needed?

Use a dremel tool with a cutoff wheel and a steady hand, only cut half way through the thickness, then using a small straight pick or sharp scratch awl inline with the crankshaft right at the score line, carefully tap the point of the pick/awl in between the sleeve and the crank to split the sleeve off of the crank.

[DEEBS11]

Not sure. Never used one.

[speedlimit85]

That seal and got 2 more coming. I sanded wrong but just the edge, electric tape seems strong to protect it if I can cover the edge cone and remove after seal is in.

How to remove the sleeve if needed?

[DEEBS11]

Wow, that sucks. What kind of seal did you use? The same kind as last time?

It looks like the single lip Viton high temp unit.

[DEEBS11]

800 grit might be too rough and if you crossed the direction of rotation that would be bad. Micro grooves may be present. You need 1500 + as mentioned and you would need to polish in the direction of rotation wetted with oil. Not across. Maybe a new sleeve is in order.

[bikerphil]

Wow, that sucks. What kind of seal did you use? The same kind as last time?