Vmax sucking up gearcase oil

[northerngn]

I have a 1987 Vmax and noticed that I can't keep the gearcase oil filled
I noted that after I filled it and ran the engine the sled smoked more than usual indicating its sucking up the oil.
I further verified this by pulling the oil level indicator when running and noticed the rpm picked up quite a bit...
What to I need to look for/replace...
I have a post about this on vintagevmax.com as well
THANKS!

-Dan

 

[sleddineinar]

I don't really understand your post. It's pretty much impossible for your motor be able to get at the oil in the chaincase. They are not connected.

 

[northerngn]

Not chain case,gearcase,where the water pump and oil pump are...

 

[sleddineinar]

Oh duh, silly me. I didn't see that it's a 87 vmax. I'd say your crank seal is going bad.

 

[vmax-540]

You need to pull the engine and replace the Crank case seals. The Mag side crank seal is leaking and that is where your gear oil is going, hence the excessive smoke. When you take the dipstick out it causes an air leak that is why the engine picks up rpm's. Do yourself a favor and get a gasket kit and fix it before you loss the engine completely.

 

[northerngn]

gasket kit

Does this have all the gaskets I need?

https://www.denniskirk.com/winderos...ngine-gasket-set-711140a.p26470.prd/26470.sku

 

[YAMMIEGOD3:16]

GEAR OIL IS GOING INTO YOUR BASE. REPLACE THAT SEAL. JUST HAD PROBLEM WITH ANTI FREEZE IN MY GEAR CASE. 3:16 (yammie tony)

 

[northerngn]

http://www.yamahapartshouse.com/oemparts/a/yam/5003b528f8700212fc83df61/pump-drive-gear


Which one is it?

 

[sleddineinar]

I would say number 14.

 

[tyler440]

its not number 14... it is number 22 on the crankshaft diagram... number 14 here is holding the oil from coming out onto the stator