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Crankcase oil migrating to bevel gear oil

  • Thread starter Thread starter Grafilthy
  • Start date Start date
G

Grafilthy

Guest
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?
 
Grafilthy said:
Anyone have a motor for an 850 thy want to get rid of?
Click to expand...
Where are you? :-k

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.
icon_shrug.gif


.
 
Thank you Agemax. I did read that thread through.prior to posting here. No solution that i see to the problem.
 
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 ?
 
Grafilthy said:
Thank you Agemax. I did read that thread through.prior to posting here. No solution that i see to the problem.
Click to expand...


split the case open and fix it...i chose to just let it drain cause im rebuilding my spare 850
 
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.
 
Grafilthy said:
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 ?
Click to expand...
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.

.
 
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