449/511 Breather hose mod

Actually, a lot of Huskys have an oil breather built into the frame, which would of been perfect for this. This one is on BMW, and sending hot blow-by gas by the torque limiter no less. And then, to make matters worse, the oil quantities are lowered, dropping the levels in the case to where oil isn't there to cool the torque limiter. *palm to forehead*
So... Confucius say more oil is better.

Just a question - how many have had 'low oil' related problems or blow'n up motors?

That's a good question and I don't have an exact answer to that because manufactures rarely advertise known flaws. I can tell you that Malcolm Smith's torque limiter exploded 200 miles into the NORRA mexican 1000 this year and that Zip-ty racing had constant slipping annealing failures. Other pro racers I have asked acknowledge the issue and replace the torque limiter before major events. Most riders will probably not see slippage til late in the engine life, so far I am told the failures are when the engine is held wide open for extended periods of time during desert races.

So if you don't trash/race your bike it will not be an issue before late in the engines life? I believe that's why Husky has done nothing to compensate for it!
I'm still interested in a solution as I do race mine and on up to 35 or more degrees!

It's like a limited slip differential that is designed to give when you unload the engine and then reengage. I too am interested in a permanent solution. Keeping the oil @ 1150cc is a good idea. Other than that, the 449 platform is rock solid and has a massive 196 watt stator for light goodies.

Where do I find a filter like this? I want to try to do this in the simplest way possible but I don't want to run any lines into the airbox anymore. I'm done with that crap.

Autozone has them for ten bucks.

http://www.autozone.com/autozone/ac...25xh?itemIdentifier=266497&_requestid=1029711

When my oil separator is finished, you will be able to just add an air filter like this to it if you do not wish to run back to the main air filter.

Sweet thanks. Went to Autozone website and found this one which I kinda like better as it is rubber and looks like it could take a beating.

http://www.autozone.com/autozone/ac...25xh?itemIdentifier=178367&_requestid=1611591

Any thoughts how how these guys setup their oil cooler?

http://www.simonpavey.com/the-bike/

Or these guys?

https://lh6.googleusercontent.com/-.../AAAAAAAABNM/uc_MYQN4o0Q/s847/go_6O1A7485.jpg

I didn't see an oil cooler on the Simonpavey bike, but I love their rear gas tank.

There's three ways to put an oil cooler on. You can use an oil filter cover adapter, weld and tap the case directly behind the oil filter or a combination of the two.

Edit: Simon doesn't use an oil cooler, he uses dual fans. He wishes to test Ty Davis's oil cooler setup in the future.

Is the lower tank in the skid plate an oil cooler?

I think they are required to carry 3 liters of water and that is probably it.

It's water.

http://www.asphaltandrubber.com/racing/husqvarna-te449-rr-dakar-race-bike-speedbrain/
This oil cooled engine is drilled and welded.

Drilling could be a little extreme for us weekenders! My Thought? Could be worth an investment if the modification would add to the engine life! I spend allot of time in the desert with long wide open trails!

The Dakar race teams incorporated some interesting concepts in the bikes!

Oh yea, it's way extreme and even I wouldn't do it til I had to take my motor apart (which is hopefully never). Most riders do not have to have an oil cooler. If you are racing or running wide open for extended periods of time, then you should invest into an oil cooler.

On the 449 platform, you have to keep the torque limiter cool or it will fail. Another way to keep it cool is to submerge it in oil, which is what I have done with the oil breather mod. I run 0w-40 synthetic at slightly above the original BMW oil level (1150cc). My flow (which is very low on these engines) is greatly increased, this not only keeps my torque limiter cool, but also quiets my engine. It's hard for me to describe it, but if you own a 449/511 you know about that funky klunking, clicking, vibration noise the engine makes and is greatly reduced with my method.

Anyone ready with a kit yet?

I've been pretty busy this fall, but I will have time to put together a few projects next month. Also, after exhaustively searching for oil coolers, I decided to design my own. It is smaller than your fist and has a higher heat transfer than a twelve by twelve cross flow.