[dsn_klr650] engine lubrication system
Posted: Fri Aug 18, 2000 7:51 am
Jaime Pertuz wrote:
[...]
I've noticed a bit of this grey stuff on my ignition bits down there. Without analysing the stuff, my guess that it is tiny bits of ferrous metal that get attracted by magnetic fields there. If you had a magnetic drain plug then I suspect you'd find similar grey sludge on it. [...]> The reason I ask is because when removing the generator engine > cover, I found grey-ish grease on the stator trigger coil (that fat > cube thing that tells plug when to fire) and the permanent magnets > inside the generator flywheel (magneto-tomatoe).
Oil is ok, it's supposed to be there. When you park on the sidestand, the oil will run into the stator case. You're only supposed to have not much oil in there when you take off the stator case because you should have drained the sump first. The oil also does some cooling on the stator coils. Some bike alternators are aircooled, some are oilcooled like on the KLR. [...]> So I found this grease as well as oil on the casing behind the > stator, and lastly,
The only crankshaft seal is on the RHS case, in the clutch cover, actually. The seal allows oil pressure to be fed into the centre of the RH half of the crank to feed the big end bearing. The seal is a special hi-temp material ("Viton"?), made obvious by its dark red colour. The only way you could suspect a crank seal leak is through an abnormally low oil pressure reading. Whatever would leak past that seal would drain down into the sump so you'd have no external indication.> then I had a bad/ leaking > crankshaft seal. That's the last I heard on this topic but I still > ask.....what crankshaft seal?
You won't, not on the LHS. [...]> I've not pulled the flywheel off, but I > don't see any seal pictured or written about in the manuals.
They should be. There are no special oil jets onto the chains, and the roller clutch certainly needs its fair share of oil. Splash oiling is the system here. [...]> The starter clutch, cam and balancer chains are within the range of > the lube systems' oil bath aren't they??? Or aren't they??
Nah, oil can only get out there. Mister_T> Last two things: Is it possible oil came in through the balancer > tensioner screw? I can see that my o -ring there is bad on two sides.