Oil seals HELL

[SMBH]

Ok here's some pic's









I am 99.9% sure it is coming from the right hand crank shaft oil seal, now some thing I have noticed is the end float on the crankshaft pulling it in and out is around 1mm only guessing (have no way of measuring it) when the engine is running with the rotor cover removed the one with the 3 screws the rotor magnet moves in and out when the throttle is blipped now that cant be helping the oil seal to hold any oil back, it could be just pumping the oil out moving in and out.

Any idea what is permissible end float is ? I have a feeling there should be no end float, if that's the case then it's another total strip down.

[LOUD MOUSE]

You are correct.
No movement at all.
I'd remove the stater and see what is actually moving. ......................lm

Ok here's some pic's

<a href="http://s277.photobucket.com/user/mike5t ... 2.jpg.html" target="_blank"><img src="http://i277.photobucket.com/albums/kk54 ... a/pic2.jpg" border="0" alt="CB77 Pic2 photo pic2.jpg"/></a>

<a href="http://s277.photobucket.com/user/mike5t ... 4.jpg.html" target="_blank"><img src="http://i277.photobucket.com/albums/kk54 ... a/pic4.jpg" border="0" alt="CB77 Starter SPKT photo pic4.jpg"/></a>

<a href="http://s277.photobucket.com/user/mike5t ... 5.jpg.html" target="_blank"><img src="http://i277.photobucket.com/albums/kk54 ... a/pic5.jpg" border="0" alt="CB77 Starter SPKT oilseal photo pic5.jpg"/></a>

<a href="http://s277.photobucket.com/user/mike5t ... 3.jpg.html" target="_blank"><img src="http://i277.photobucket.com/albums/kk54 ... a/pic3.jpg" border="0" alt="CB77 Pic 3 photo pic3.jpg"/></a>


I am 99.9% sure it is coming from the right hand crank shaft oil seal, now some thing I have noticed is the end float on the crankshaft pulling it in and out is around 1mm only guessing (have no way of measuring it) when the engine is running with the rotor cover removed the one with the 3 screws the rotor magnet moves in and out when the throttle is blipped now that cant be helping the oil seal to hold any oil back, it could be just pumping the oil out moving in and out.

Any idea what is permissible end float is ? I have a feeling there should be no end float, if that's the case then it's another total strip down.

[SMBH]

With all rotor and starter removed the crankshaft end float pushed in and out is around 1mm, so would this contribute to oil leaking from the main large oil seal ?

[LOUD MOUSE]

The seal in the sprocket doesn't look like any I've ever used.
If the crank moves as you say I think I'd be more concerned with the movement at this time than the oil leak because all bearing are supposed to be centered in the cases with knock pins and the bearings flush to the inter area of the shafts.
If you have movement you need to check the bearing mounts and or races. ......................lm

With all rotor and starter removed the crankshaft end float pushed in and out is around 1mm, so would this contribute to oil leaking from the main large oil seal ?

[mike in idaho]

Mouse, there shouldn't be any end float with the nut tight on the primary drive sprocket(ball bearing), is that correct?

[LOUD MOUSE]

Correct. ............lm

Mouse, there shouldn't be any end float with the nut tight on the primary drive sprocket(ball bearing), is that correct?

[SMBH]

Thank you guys, it's out with the spanners again, Ho happy days.