Oil leak near front sprocket

[Nick.H]

Brought it by my mechanic, he's helping me pull the motor. It's both the shift shaft seal and the countershaft seal. He's insisting on splitting the cases, and replacing crank seals while we're there. 

[ginger]

i was gonna say, those seals dont need the motor removed to replace it. 

[Nick.H]

He's insisting it's the best way to do it. I'm kinda at his mercy as far as tools and working space, so whatever he wants to do I have to be onboard 

[kawa110]

He's charging you $ for his time?

 

[JUSTWANNARACE]

Counter shaft seal would only leak if it is running as the oil level is not high enough to leak from there when parked. Jmo

[Nick.H]

1 hour ago, kawa110 said:

He's charging you $ for his time?

 

No, I'm just using his space and advice. I bought him lunch that's it

[Nick.H]

19 hours ago, JUSTWANNARACE said:

Counter shaft seal would only leak if it is running as the oil level is not high enough to leak from there when parked. Jmo

I heard if it's overfilled the fluid pressure can build up and blow past the seal. Is that correct?

[ginger]

if a vent it clogged it can cause pressure to build.  there are 2 vents. most people block off the water pump one as it normally is in the way. 

[kawa110]

Pros and cons to blocking off the vent?

[hoppedupandcutdown]

24 minutes ago, kawa110 said:

Pros and cons to blocking off the vent?

No cons. It is actually below oil level. I'm certain it is left over from the RZ350's thermostat system. (Why it has 2 screw bungs next to it)  Even the Banshee Clymer refers to it as a coolant hose. New lockout covers do not have a provision for it at all.

[kawa110]

I remember putting that hose in soapy water when I did leak down, was that to check the crankshaft seal?
It's been awhile I think I'm confused, would that mean I would have to remove clutch cover to check for air leak if the hose is blocked off?

[hoppedupandcutdown]

3 minutes ago, kawa110 said:

I remember putting that hose in soapy water when I did leak down, was that to check the crankshaft seal?
It's been awhile I think I'm confused, would that mean I would have to remove clutch cover to check for air leak if the hose is blocked off?

Depends which hose, the front one tees to the rear one, if you put the rear only hose or the end going up the  steering you'd be OK at checking the crank seal.

[kawa110]

Gotcha...the crankshaft seal can be tested with just the rear hose

[Nick.H]

Got the motor put back together with the new countershaft seal in and new crank seals. And new shift shaft seal. I don't know how I would've been able to get to the countershaft without opening the motor up. 

[Nick.H]

Putting the motor back in the bike today. Hopefully no issues!