Crankcase oil migrating to bevel gear oil

[Grafilthy]

Crankcase oil migrating to bevel gear oil.
. My 79 gs850g has been puking oil out the crankcase breather line for a while now. I also have it routed to a bottle to catch the oil.
i have drained both engine and bevel gear oil, filled both w required oil.after a short highway ride of 5 or 6 miles i immediately put bike on center stand . At this point the crankcase oil level barely registers in sight glass.
so then i open up screw on bevel gear case and catch all the excess oil that flows out. its a mixture of engine oil and gear oil.after letting gear box oil level flow to correct level out the screw hole, i then top off engine oil level to correct amount.
Trying another short highway ride yields same results.

My question is .... Is this an internal seal/gasket that keeps the two fluids seperate ?

This sounds like a case splitting job to fix... Anyone have a motor for an 850 thy want to get rid of?

Any chance this could be something simple ?

Graf..
ps. let me add this .. i pulled the airbox it was clogged with rust. now its not clogged. as for the crankcase breather i pulled the cover and looked at those two screens they are clean .. should i be able to blow into the line from the airbox end , into crankcase breather?

[Agemax]

check out this thread with similar problem. should give you the help and advice you are looking for..........

http://www.thegsresources.com/_forum/showthread.php?t=203606

[Steve]

Anyone have a motor for an 850 thy want to get rid of?

Where are you?

I have the lower end of an '83, will have to check to see how complete it is.

You will lose your kick starter in the process if you do that.

.

[Grafilthy]

Thank you Agemax. I did read that thread through.prior to posting here. No solution that i see to the problem.

[Grafilthy]

Steve ;
I live in Napa . Calif. 94558.
Losing the kickstart doesnt bother me. Will it be a simple mount up ? carbs ,etc? What condition is it in ?

[gs850cafe]

Thank you Agemax. I did read that thread through.prior to posting here. No solution that i see to the problem.

split the case open and fix it...i chose to just let it drain cause im rebuilding my spare 850

[Grafilthy]

thats quite a project. One i never have done before. Ultimately tryin to avoid it. If a spare motor comes along cheap enough , I"ll opt for that.
Guess I should start reading up on the procedure.

[Steve]

Steve ;
I live in Napa . Calif. 94558.
Losing the kickstart doesnt bother me. Will it be a simple mount up ? carbs ,etc? What condition is it in ?

I will have to look at it tomorrow, when I get out to the garage.

I know for a fact that the cylinders and head are off of it. If I remember correctly, the stator is also missing, as well as the starter. Your starter, cylinders and head should transfer over directly, but your stator is a 12-pole, the rotor on this bike is set up for an 18-pole stator. The good new is that the 18-pole stator would be an upgrade and easier to find.

Shipping an engine block across the country might be a killer, though.

.

[Grafilthy]

Ok keep me posted.