• 4 Stroke Husqvarna Motorcycles Made In Italy - About 1989 to 2014
     TE = 4st Enduro & TC = 4st Cross

  • Hi everyone,

    As you all know, Coffee (Dean) passed away a couple of years ago. I am Dean's ex-wife's husband and happen to have spent my career in tech. Over the years, I occasionally helped Dean with various tech issues.

    When he passed, I worked with his kids to gather the necessary credentials to keep this site running. Since then (and for however long they worked with Coffee), Woodschick and Dirtdame have been maintaining the site and covering the costs. Without their hard work and financial support, CafeHusky would have been lost.

    Over the past couple of weeks, I’ve been working to migrate the site to a free cloud compute instance so that Woodschick and Dirtdame no longer have to fund it. At the same time, I’ve updated the site to a current version of XenForo (the discussion software it runs on). The previous version was outdated and no longer supported.

    Unfortunately, the new software version doesn’t support importing the old site’s styles, so for now, you’ll see the XenForo default style. This may change over time.

    Coffee didn’t document the work he did on the site, so I’ve been digging through the old setup to understand how everything was running. There may still be things I’ve missed. One known issue is that email functionality is not yet working on the new site, but I hope to resolve this over time.

    Thanks for your patience and support!

TE 511 -oil in air filter

D

djman

Husqvarna
AA Class
Air filter compartment appears to be dripping oil, is this normal? Possible causes?
Should I be concerned? Bike is a 2011 with about 800 km on it.
Your comments please.
 
There is too much oil in the crankcase and it is being pushed up the breather into the filter. Make sure the oil is filled no further than half way up the inspection glass. This is a common occurance if you overfill the oil level.
 
Check your oil once you have warmed it for 5-10 minutes. If you can still see the bubble near the top of the sight glass, you're okay.
 
Make sure the bike is actually level when checking the oil. A slight lean makes a big difference in the sight glass. Also, any extra oil in the air filter will also cause it to drip.
 
And I will add, make sure your air filter isnt over-oiled in the first place. I let mine drip into a plastic bag overnight after cleaning and re-oiling. It is amazing how much oil can drain out if you are liberal with the oil.

Another way to get the oil level right in the engine is to set on level stand and take out the fill plug. If any oil runs out the fill hole it is too high.
 
These bikes are super picky about oil level and love to puke oil out the overflow. I fill mine to below the sight glass and then start it up and ride it around. Once warm it is at the top of the sight glass. If i fill it to the middle of the sight glass cold it will puke out the breather.

BTW my oil breather has been removed from the airbox and have a filter on the end of it. I want to extend it even further (higher up the bike) so I can puke into it and then reclaim most of it. Even with all this it will still puke some oil out the overflow.
 
Motosportz said:
BTW my oil breather has been removed from the airbox and have a filter on the end of it. I want to extend it even further (higher up the bike) so I can puke into it and then reclaim most of it. Even with all this it will still puke some oil out the overflow.
Click to expand...
I was fortunate to recently inspect the inside of the 449/511 in regards to oil passages and the breather. Due to blow-by and the movement of the piston, air must flow in and out of the case. But the breather is not just a hole, it passes oil past the torque limiter which spins off the liquid oil, but allows atomized oil to pass and collect in the breather tube (genius invention). This oil can not return to the case and eventually is deposited in the air filter. Since oil can not return to the case via the breather hole, it is best to reroute your breather hose from the air filter and add a separate small filter at a different location, possibly adding twin lines to the new smaller filter where oil will eventually drain out.

Lowering the level of oil in your crankcase will help with the oil blow-by issue, but a word of warning that the oil pickup from the Eaton oil pump is not at the very bottom of the case. Therefore, it would be wise to run oil levels as high as possible.
 
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