TE511 oil level increase

[fasteer]

seems to me I read somewhere that fuel can get in and contaminate / increase the oil level, but can't find now where I saw that.

Last time I returned from a ride the oil site glass was completely full... Opened the fill cap and some oil ran out, maybe 100 ml or so... Bike was level on the lift.
Didn't really smell any gas, but my sense of smell is dodgy anyway.
The bike was on its side several times in the snow, could that have anything to do with it?

Due for oil change anyway and will keep a watch on it.
Any advise very welcome.

 

[K5PL5]

Did you fill the oil? How was the bike sitting when it was filled?
Look for blue slimey oily stiff running out of your airbox. If you see that then some engine oil puked up into the airbox and is thinning the air filter oil. You will need to clean out the airbox and clean/re-oil the air filter. Take it from someone who overfilled his oil the first time haha.

 

[fasteer]

No, it wasn't overfilled.
Oil has been changed half dozen times, I'm aware of that issue.

 

[Tinken]

Yes, the oil does fill with gasoline. Blow-by during the compression stroke will push gasoline into the oil. This is why Husqvarna raised the oil grade from the original BMW specification of 5w40 to 10w40. Ten grade oil is four times thicker than five and can stay in your case longer before being thinned.

 

[K5PL5]

Yes, the oil does fill with gasoline. Blow-by during the compression stroke will push gasoline into the oil. This is why Husqvarna raised the oil grade from the original BMW specification of 5w40 to 10w40. Ten grade oil is four times thicker than five and can stay in your case longer before being thinned.

You seem to be quite Husqvarnedly educated... Can you tell me where you got that info? Is there a dealer bulletin or anything on that? I've never heard anything about that.
Thanks

 

[fasteer]

Yes, the oil does fill with gasoline. Blow-by during the compression stroke will push gasoline into the oil. This is why Husqvarna raised the oil grade from the original BMW specification of 5w40 to 10w40. Ten grade oil is four times thicker than five and can stay in your case longer before being thinned.

Anything to do about it? Or just change oil often...

 

[Tinken]

Change often is my solution. Kelly runs Delco which is 15w40, not sure how often he changes. I run 0w40 so I change very often.

 

[oregonsage]

I run 10-40 and change it every couple of hours....but have never noticed the level rising.

 

[Tinken]

You seem to be quite Husqvarnedly educated... Can you tell me where you got that info? Is there a dealer bulletin or anything on that? I've never heard anything about that.
Thanks

It's a combination of sorts. I know engine dynamics because I'm an engineer who used to race alcohol nitro burning funny cars. And I hang out with Ty Davis who is Mr. Husky. I never did the introduce yourself thing on here, just kinda jumped in and started helping. Haha

 

[K5PL5]

Cool. Well Id certainly never argue with an engineer. I'll have to go take a look at what weight oil I put in the TE...

 

[Tinken]

10w40 for the 449/511

 

[K5PL5]

Thanks

 

[motocrossmr]

10w40 for the 449/511

How often do you change oil filters when changing oil so often? Im a firm believer in changing the filter every time regardless of how often the oil is changed. I have only 8 hours on my TXC and have changed both three times. Is this overkill?

 

[Tinken]

Glad you asked. The human eye can only see down to 40 microns, not mine, I'd be lucky to see dirt at 125 microns. So an oil filter that appears to be clean could in fact be pretty clogged up. Also, no matter the quality of the filter, the particle size that will do the most damage in your engine cannot be easily captured, so changing the oil is the best method of filtration. If you can afford to change the filter every time, it would be best. You can also pick up a stainless steel washable filter for about $20 dollars US which can be used hundreds of times (which is what I use) and will out flow the oem paper filters 7 to 1.

http://www.cafehusky.com/threads/oil-filters-for-the-449-511s.29284/#post-263422

 

[Rearwheelin]

Do you measure what you put in to the nearest 10cc ? I do the same exact process each time I change oil except the paper filter gets changed every other time. I lean the bike way over to the right and have the bike on it's kick stand when draining all three holes. Very important to drain all three compartments if you want to get all the oil out... I had been filling with 1000cc but filled it up with 1100cc this last time and the sight glass reads full after a good warming.

 

[Tinken]

I measure every time, (though I use 1400cc of oil** do not do this unless you complete my breather mod). Husqvarna instructs to fill to the bottom of the sight glass, but this is their band-aid to oil blow by. My engine knocks and makes noises when I use the 800cc limitation. At 1150cc (the amount spec'd for the engine) the engine is quieter and smoother and at my higher amount even more so.

When we fill up our KTM's we have, we fill to the top of the oil fill hole until it flows out and that's the correct level. Where is 1150cc's on the 449, to the top of the fill hole?

 

[Tinken]

I posted this in another thread. This is out of Husqvarna's manual. The interesting thing about this is that when checking the max oil level in the sight glass, they suggest having the motorcycle tilted on it's side stand and not in a level position. But in order to reach the real oil quantity of 1150cc, the oil level must reach to the top of the sight glass cold.

Here's BMW Spec:
Engine
Engine design Single-cylinder, four-stroke engine, DOHC control,
4 valves, 2 actuated by bucket tappets and 2 by
trailing valve levers, liquid cooling for cylinders and
cylinder head, Integrated coolant pump and 5-
speed transmission.
Displacement 449.5 cc (449.5 cm3)
Cylinder bore 3.9 in (98 mm)
Piston stroke 2.3 in (59.6 mm)
Compression ratio 12:1
Rated output 41 hp (30 kW), at engine speed: 7000 min-1
with coding plug AS 52 hp (38 kW), at engine speed: 9000 min-1
with reduced output OA 26 hp (19 kW), at engine speed: 7500 min-1
Torque 32 lb/ft (43 Nm), at engine speed: 6500 min-1
with coding plug AS 32 lb/ft (44 Nm), at engine speed: 7800 min-1
with reduced output OA 22 lb/ft (30 Nm), at engine speed: 5750 min-1
Idle speed 1850...1950 min-1
9
87
z
Technical data
Fuel
Recommended fuel quality 95 ROZ/RON, Super unleaded
Usable fuel quantity Approx. 2.1 gal (Approx. 8 l)
Reserve fuel quantity ~0.8 quarts (~0.75 l)
Engine oil
Oil consumption max 0.1 l/h
Engine oil capacity max 1.2 quarts (max 1150ccc), with filter change
Engine oils, permissible viscosity classes and products
Oil grades Mineral engine oils with the API classification SF
to SH. BMW Motorrad does not recommend using
oil additives, as these can worsen the operation
of the clutch. Ask your BMW Motorrad retailer
for engine oils suitable for your motorcycle.
Permissible viscosity classes
SAE 5 W-40 ~-22 °F (~-30 °C), Operation at cold temperatures
SAE 10 W-40 ~-4 °F (~-20 °C), Operation at low temperatures
SAE 15 W-40 ~14 °F (~-10 °C)

 

[Tinken]

.
Been pondering Rearwheelin's oil level increase idea.. Have a few

 

[Rearwheelin]

It won't even take 1000cc before it starts coming out with it on it's side stand. You have to start it up at some point during the fill after 900cc to get the rest in

 

[Rearwheelin]

.
Been pondering Rearwheelin's oil level increase idea.. Have a few

It's geniuse ! Wish I could beet you to it