Getting rid of the roll over valve

[XP123]

I did everything right with my ROV delete and it still ended up freezing down where the hose exited by the running board. The oil tank seal blew and I had the dealer fix it under warranty. I went back to stock and sold the sled.

 

[KnappAttack]

Someone tell me how the hell it freezes exiting where I posted mine originally exiting and cutting it at an angle rearward? I just removed my hose the other day to replace it because it is literally burned at the end from the exhaust. Between the underwood heat, the heat coming off the muffler and the actual exhaust heat there should be no way to freeze the end up. Plus the air coming out of the hose it heated too.

I'll say it may be possible if you were using 1/2" line instead of 5/8", but I have never even come close to freezing up a 5/8" line. You have to cut a 45 degree rearward angle on a 5/8" hose to keep the snow dust from entering the line! You can also cut a slit anywhere in the hose just incase the end was to freeze to prevent a over pressure situation as well. Its a pretty simple fix that works, and works better than anything the factory has devised for it.

 

[Kevin]

Mine will be deleted before my next ride

 

[XP123]

Someone tell me how the hell it freezes exiting where I posted mine originally exiting and cutting it at an angle rearward? I just removed my hose the other day to replace it because it is literally burned at the end from the exhaust. Between the underwood heat, the heat coming off the muffler and the actual exhaust heat there should be no way to freeze the end up. Plus the air coming out of the hose it heated too.

I'll say it may be possible if you were using 1/2" line instead of 5/8", but I have never even come close to freezing up a 5/8" line. You have to cut a 45 degree rearward angle on a 5/8" hose to keep the snow dust from entering the line! You can also cut a slit anywhere in the hose just incase the end was to freeze to prevent a over pressure situation as well. Its a pretty simple fix that works, and works better than anything the factory has devised for it.

I don't know Mike. Mine froze up in Quebec when it was very cold and lots of snow dust. I noticed my sled was running funny and it wouldn't idle properly. I thought I had picked up some bad fuel. During one of our stops, I asked others if they were experiencing similar issues and they weren't even though we bought the same fuel. Just for the heck of it while it was idling crappy I reached down and grabbed the hose where it exited the running boards and squeezed out ice and white/yellow goop. The sled immediately idled perfect and ran great. I even had cut a couple slits in the hose about eight inches up from the outlet and it still froze shut.
I know guys will say I must have done something wrong, but I did everything exactly as everyone else did. My oil tank then started to seep oil and when I got back from my trip I had it fixed by the dealer under warranty.
It was then that I had enough of the BS and didn't want to deal with it again.

 

[MrSled]

Someone tell me how the hell it freezes exiting where I posted mine originally exiting and cutting it at an angle rearward? I just removed my hose the other day to replace it because it is literally burned at the end from the exhaust. Between the underwood heat, the heat coming off the muffler and the actual exhaust heat there should be no way to freeze the end up. Plus the air coming out of the hose it heated too.

I'll say it may be possible if you were using 1/2" line instead of 5/8", but I have never even come close to freezing up a 5/8" line. You have to cut a 45 degree rearward angle on a 5/8" hose to keep the snow dust from entering the line! You can also cut a slit anywhere in the hose just incase the end was to freeze to prevent a over pressure situation as well. Its a pretty simple fix that works, and works better than anything the factory has devised for it.

I can’t explain it but I have had this happen on my 2020srx. It don’t make sense to me either as my 2 other winders never had an issue. I even have a slit in it about 3” form the end.

 

[jonlafon1]

I have seen some ice build up on really cold rides(-10, -20). But I keep a eye on it and never felt it was going to build up enough to freeze shut. This one I drilled a hole through plastic panel closer to exhaust then my 17 which was out right under foot.

 

[Kevin]

Insulating the full length of the new hose?

 

[Simplespeed]

I can tell you that I used a 5/8” radiator type hose, wrapped with foil tape, looped up high as possible, bottom cut on angle and hung just below running board height and no matter how much snow, how cold it got, it would not and or did not freeze…. This mod is simple and it works as far as I can tell… Now that being said I have one question??? Was the factory hose routed to that location to blow oil though the turbo for some sort of extra lubricant ???? I notice the turbo had alot of carbon ( Burnt oil ) all over the turbo at 350 miles on the sled … Have not checked it yet after modified blow off value but Iam betting it will clean up the turbo somewhat..

 

[stevewithOCD]

2 things here:
1. The fan blades don't get lubricated. NO good comes from oil on the blades.
2. Wouldn't insulating the hose almost work against us here? The engine heat would help keep the hose from freezing.
----I think my "naked" hose had over 10,000 miles including a -24F day. NEVER froze. Oil Tank NEVER leaked again.

P.S:
"Naked Hose" refers to the 5/8ths oil hose i eliminated my ROV with.
I know i know...........in most cases you should always wrap your hose, but this may be the one time you don't

 

[Kevin]

2 things here:
1. The fan blades don't get lubricated. NO good comes from oil on the blades.
2. Wouldn't insulating the hose almost work against us here? The engine heat would help keep the hose from freezing.
----I think my "naked" hose had over 10,000 miles including a -24F day. NEVER froze. Oil Tank NEVER leaked again.

P.S:
"Naked Hose" refers to the 5/8ths oil hose i eliminated my ROV with.
I know i know...........in most cases you should always wrap your hose, but this may be the one time you don't

2. that is very interesting

 

[earthling]

2 things here:
1. The fan blades don't get lubricated. NO good comes from oil on the blades.
2. Wouldn't insulating the hose almost work against us here? The engine heat would help keep the hose from freezing.
----I think my "naked" hose had over 10,000 miles including a -24F day. NEVER froze. Oil Tank NEVER leaked again.

P.S:
"Naked Hose" refers to the 5/8ths oil hose i eliminated my ROV with.
I know i know...........in most cases you should always wrap your hose, but this may be the one time you don't

The heat in the compartment is going to heat up that hose regardless of whether it is covered in foil or not. The reflectivity in foil tape is there for two reasons, one is to identify it separately from other types of tape (clearly used for HVAC and clearly not tuck tape or duct tape, etc) and two is very minor protection against radiated heat. The heating from the engine will largely be through convection in which case the foil tape will have little effect at reducing heat in the hose, if it has any insulative properties they probably pale in comparison to the thickness of the hose itself. The foil tape will protect the hose from heat damage which largely comes from conductive (direct contact) or radiated heat but in this case I think it is having little effect. The majority of the problem is caused by cold air coming in through the opening, as long as there is pressure coming from the tank, and you have the reverse cut on the hose, it should be fine (foil or not).

 

[sailor joe]

so what is the point of Yamaha venting an oil hose into the air box for the turbo to burn up? This is just stupid. I have oil dripping out my air box and into the engine compartment...totally suck and the black sponge material gets soaked in oil wtf. The dealer said not to remove the oil vent line from the air box..another dealer suggested I don't run my sled hard enough to burn the oil out...one thing for sure is oil is coming out of these sleds somewhere...either from the tank gasket or the air box....you'd think by now Yamaha would have an answer to their oil problem...they dont. Knapp has an answer, Steve does, Rocker Dan does and so on and so fourth but Yamaha nope..just keep building in the same problems...after 5 years of this stuff crickets from Yamaha...no real fix. it sucks!!!!

 

[Turboflash]

EPA regs! Cannot vent hydrocarbon fumes to atmosphere. This is reason for PCV, EGR systems and reason for that system on the YamaCats.

 

[sailor joe]

EPA regs! Cannot vent hydrocarbon fumes to atmosphere. This is reason for PCV, EGR systems and reason for that system on the YamaCats.

so the only reason to put excess oil vapor into the air box is the EPA? If I bypassed the oil tube going to the air box I will no longer have oil everywhere inside engine compartment? The oil vent hose going back into the air box has no other function but regs?

 

[Confused]

While I have one trip on my deleted ROV, I've made it a habit to kick the end of the hose before startup, especially first startup of the day. I've found every time, some white oily ice falls on the ground. I could see this freezing up on a cold morning starts but not after running and stopping through the day.