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  #1  
Old 16th April 2021
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Question 2000 XL Oil Plug Question to drain ALL OLD oil.

I never knew I had an oil plug. Always used the Rubber Tube on the knob on the frame.

Was searching around on how to drain out every drop of oil I could from the crank case before re-assemble engine from the oil pump worm gear, and cams, up to the whole top end.

I called Hammer performance after I got some new lifters, bronze oil pump worm gear and other things.

I asked them about vacuuming out the oil from the cylinder piston holes, and the plug was mentioned. I thought it was only on older model engines.

I got home and looked and seen on the bottom part of crank case, an actual plug !

Never in my 21 years of owning and wrenching on my bike have I ever known this.

Any tips or tricks and to do's or don'ts to removing, and draining what oil remains in the crank case ? Since I can't start it and get it warmed up ?

I want to rid of every drop of OLD OIL i can, before re-assembly of fresh new parts.

Thanks for any feedback or direction.

I looked in the sportsterpedia, but nothing too specific I could find, and no youtube videos I could find that even mentioned using the drain plug to remove the oil that can't be removed from the normal tube on the knob on the frame normal changing method.

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  #2  
Old 16th April 2021
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Dont think you should remove that plug
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Old 16th April 2021
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Question

Quote:
Originally Posted by rocketmangb View Post
Dont think you should remove that plug
Any reason ? Hammer didn't say anything but use a cut allen wrench to remove.

Any other ideas other than vacuuming inside the crank case thru piston holes to remove any and all excess old oil ?

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This subject comes up every so often on the forum.
You can't remove all the oil from the engine no matter where you drain from.
This is due to the ribbing in the crankcase for the case bolt bosses and also in cam chest.
Most don't worry about it unless you have contaminated oil or something.
Yes, you can remove that plug. It is not intended for a drain though.
It's plugged off (some with a freeze plug) after the MoCo drills a rifling hole to tie the oil pump and crankcase sump passages.
It will drain most of the oil but what's below the bolt bosses won't come out.

See the standing oil in the gearcase on 2000.



91-99 crankcase: See the bolt bosses raised not allowing oil to go to the sump hole on the right.
Notice the sump drain hole is not directly on the bottom either.



See the green line running North from that plug in this drawing for the purpose of it being there.



If you just NEED to remove ALL the oil from the engine, you can do a scavenge oil change.
And that is here in the Sportsterpedia.
http://www.sportsterpedia.com/doku.p...alk:ref:oil01a

I'm not sure how far you have it down or what stage.
So this is just things off the top of my head.
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Quote:
Originally Posted by Hippysmack View Post
This subject comes up every so often on the forum.
You can't remove all the oil from the engine no matter where you drain from.
This is due to the ribbing in the crankcase for the case bolt bosses and also in cam chest.
Most don't worry about it unless you have contaminated oil or something.
Yes, you can remove that plug. It is not intended for a drain though.
It's plugged off (some with a freeze plug) after the MoCo drills a rifling hole to tie the oil pump and crankcase sump passages.
It will drain most of the oil but what's below the bolt bosses won't come out.

See the standing oil in the gearcase on 2000.



91-99 crankcase: See the bolt bosses raised not allowing oil to go to the sump hole on the right.
Notice the sump drain hole is not directly on the bottom either.



See the green line running North from that plug in this drawing for the purpose of it being there.



If you just NEED to remove ALL the oil from the engine, you can do a scavenge oil change.
And that is here in the Sportsterpedia.
http://www.sportsterpedia.com/doku.p...alk:ref:oil01a

I'm not sure how far you have it down or what stage.
So this is just things off the top of my head.

The plug I seen is at bottom of crank case. Will take a picture from the bottom. Is more on right side where frame crosses underneath.

Currently cam cover is off and jugs and whole top end is off with oil pump off, cams, drive gear, and oil pump worm gear all off.

If put small tube on a shop vac, don’t see why not couldn’t stick in piston holes and get quite a bit of oil out using that method also.

Question also if remove plug on “bottom “ , if need any special methods of putting it back , like pipe thread Teflon tape, loctite etc.

Thanks


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That pocket under the # 4 cam saved my ass when I lost that POS JIMS LIFTER !
All the metal stayed right there
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I think people say don't remove that plug-it's probably a tapered pipe thread and you may succeed in cracking the case if you overtighten it

Probably not a problem if you are careful
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