what is a sump?

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roqueweiler

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can anyone tell me where my "sump" is?

How about a pic with labels somewhere on line?

thanks
 
Huh, couldn't delete my last post, not very good on computers.
The engine sump is in the bottom of the motor, where the crankshaft is.
Nortons have a dry sump, which means the the oil is drawn back to an oil tank with the oil pump.
Most cars & a lot of modern bikes have a wet sump, which means that the oil remains in the bottom of the motor. The oil is then drawn from this sump & forced into the crankshaft & most moving parts, then falls back to the bottom of the motor (sump).
 
I own an old harley aswell, so I sadly know what wet sumped is too!
Foxy
 
[Still don't get it.[/quote][/quote]

Flo,

This is a literal metaphor of when 2 young men characterised by urban USA street culture encounter one another, as a greeting translated as such "What is up Homey? " (Homey being a person known to or related to the other) This is pronounced with variation according to ethnicity "Wazup Homey?" "Whatsump Homey?" The latter being the pun played by your fellow Norton scribes.

Mick
 
roqueweiler said:
can anyone tell me where my "sump" is?

How about a pic with labels somewhere on line?

thanks
Click to expand...
On pre 72 and later 73 on, the sump is the big nut at the center/rear/bottom of the motor. On 72 and early 73 motors the sump is a small aprox. 1/4 of an inch with no screening in the middle/front/bottom of the motor. Unless you have some particular problem, I am not going to that whole picture thing. Anyhow, wazup with your sump? Seriously.
 
I dunno,

aren't I supposed to check and see if it's wet sumping?
I assume that that means I will have oil in the "sump" where no oil is supposed to accumulate.
I am not at all sure what to do if I do find sumping (something).
Hopefully I find Norton (nothin')

BTW there are some seriously bad punsters on this forum.............
 
Boy, that Aussie is pretty good with Amurikan dialects.

Dave
69S
 
After you ride your bike and drain the crankcase you will have 100 to 200 cc's. Although 200 is a little too much.
Cause #1 if you have too much oil from the sump.
I you let the bike sit for a week and see how much oil you get. This is from the oil draining past the seal points in the oilpump from gravity. Some people put a one way valve on the feed line but the is inherently dangerous. Reconditioning the oilpump is the cure.

Cause #2
1972 and early 1973's have internal design defects in the crankcase whereas the forward placed sump hole is starved of oil due to the fact that the crank flinging oil to the rear and to the cavity that covers the breather( another 72 design defect). As oil displaces the air in the crankcase cavity crank pressure increases and oli seeps out of weak areas, usually the crank seal on the primary side. People wondering where thair oil is going find that oil is leaking out the back of the primary or the clutch is not working properly cause oil got all up in that.

If you have a later 73 750 or 850 or a pre72 this will not be an issue for you. See cause #1.

Although wet sumping can be an issue and is spoken of ofter(too often) it shouldn't be a general concern.
 
Just do some ridin in east LA and you'll have the lingo down Pat. :lol:
Or hang out w/ some teenagers :p
Marshal
 
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