Turbo Viper Burning oil on steep climb

[freefallin700]

So I just got back from Colorado riding around 10k feet. We were doing some steep, fairly long climbs 50-60 degree hills. My sled is a 2014 XTX Viper turbo. I was running 10 lbs of boost. About 100-200 feet in the climb my sled starts to burn oil. One of my climbs the sled lost prime and the oil light came on. Luckily I made it through the climb before the sled quit at the top. I was able to get it primed up and the sled ran fine. What gives?

 

[christopher]

Which Turbo are you running?

 

[freefallin700]

turbo

hurricane

 

[RACINSTATION]

Give me a call tomorrow.

 

[turbo800]

Give me a call tomorrow.

Fill the rest of us in.......what's causing this?

 

[RACINSTATION]

I can fill you in after I talk to this guy. That is why I wanted to go over a couple things with him to determine what is going on.

 

[Prairie Dog]

I have the same thing happen when wheelieing up hill. It almost needs to go straight vertical. What I was told is there is a type of valve in the oil line somewhere. It has a little ball or something in it that when the sled gets to a certain angle it closes of the oil line. I've gt an mcx kit

 

[Matt@MPI]

I have the same thing happen when wheelieing up hill. It almost needs to go straight vertical. What I was told is there is a type of valve in the oil line somewhere. It has a little ball or something in it that when the sled gets to a certain angle it closes of the oil line. I've gt an mcx kit

It has nothing to do with the check valve. There is a low oil pressure sensor that is kicking in when the motor gets tilted back. Keep in mind this motor is tilted back 10 degrees further then the Nytro. It’s hard to get a stock sled to do it but boosted sleds don't have a problem. Yamaha will have it fixed before the MTX's are shipped.

 

[freefallin700]

Oil burn

Matt,

I can see where the oil sensor would cause it to loose prime and as a result turn the oil light on, but this doesn't explain the burning of oil. My turbo does not have the vent tube from the air box routed into the turbo system. It is just vented to air. So I'm at a loss of where the oil could be coming from. The sled only burns oil on steep climbs and nowhere else. I've talked to racinstation and at this point doesn't know what's up either. It has to be coming from somewhere internally. The question is where and how.

Thanks!

 

[Matt@MPI]

Matt,

I can see where the oil sensor would cause it to loose prime and as a result turn the oil light on, but this doesn't explain the burning of oil. My turbo does not have the vent tube from the air box routed into the turbo system. It is just vented to air. So I'm at a loss of where the oil could be coming from. The sled only burns oil on steep climbs and nowhere else. I've talked to racinstation and at this point doesn't know what's up either. It has to be coming from somewhere internally. The question is where and how.

Thanks!

There is a hand full of oil related problems. All of them a currently being worked on. What's it burning on?

 

[freefallin700]

Oil

The oil is being burned internally.

 

[noob]

Curious, are you checking oil before a climb and after a climb, or between rides? Does it burn quite a bit. Something to look for on my 15.

 

[BigFish BC]

The oil is being burned internally.

so its coming out the exaust?

 

[geo]

This is a dry sump system isn't it? Hope it's not cavitating too.

 

[freefallin700]

oil

Yes it is coming out of the exhaust. When I get into a 50-60 degree climb about 200 feet into the climb it will start to burn oil. When I get back down the hill and ride it around it doesn't burn any oil. I can run around all day long through the trees and up smaller short inclines and it doesn't burn a drop.

 

[BCBOOST]

Sounds to me then when vertical the drain system is not working. Big enough and correct angle to gravity drain when sled is vertical?? Hoist front of sled up to angle you figure your climbing at and have a good visual look at drain line back to engine, should tell you the story. Good luck.
BC.

 

[Matt@MPI]

Yes it is coming out of the exhaust. When I get into a 50-60 degree climb about 200 feet into the climb it will start to burn oil. When I get back down the hill and ride it around it doesn't burn any oil. I can run around all day long through the trees and up smaller short inclines and it doesn't burn a drop.

Sounds to me then when vertical the drain system is not working. Big enough and correct angle to gravity drain when sled is vertical?? Hoist front of sled up to angle you figure your climbing at and have a good visual look at drain line back to engine, should tell you the story. Good luck.
BC.

BC Boost is right. The oil drain from the turbo back to the motor is most likely your problem. Did you ask your turbo manufacture what they think?

 

[freefallin700]

oil

Yes, the problem is the oil not being evacuated from the turbo at the steep angle. They have a new elbow being produced and this will take care of the problem.

 

[Mountaintech]

Yes, the problem is the oil not being evacuated from the turbo at the steep angle. They have a new elbow being produced and this will take care of the problem.

What size is the oil return line?