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My oil change came with a prize!

Started by zarn02, April 16, 2011, 02:08:12 PM

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zarn02

April 16, 2011, 02:08:12 PM
Anybody wanna take a stab at what the hell this is?

It dropped out with the drain plug, and is steel as it sticks to it. I'd say it qualifies as a bit more than a "shaving."

Bike is '02 998 with 10,635 miles on the clock.


"If it weren't for our gallows humor, we'd have nothing to hang our hopes on."

ducpainter

#1
April 16, 2011, 02:11:41 PM
You really wanna hear what it looks like to me? :-\
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


zarn02

#2
April 16, 2011, 02:28:42 PM
I doubt it.

But... I probably should.
"If it weren't for our gallows humor, we'd have nothing to hang our hopes on."

ducpainter

#3
April 16, 2011, 02:57:18 PM
Quote from: zarn02 on April 16, 2011, 02:28:42 PM
I doubt it.

But... I probably should.
I don't really want to say...I hope I'm wrong...

but it looks like a piece of a steel bearing cage...you know the part that keeps the balls properly spaced and in place.

Anything on the sump screen?

"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


Speeddog

#4
April 16, 2011, 03:05:57 PM
Can you take a pic from a different angle or two?
- - - - - Valley Desmo Service - - - - -
Reseda, CA
(951) 640-8908

~~~ "We've rearranged the deck chairs, refilled the champagne glasses, and the band sounds great. This is fine." - Alberto Puig ~~~

zarn02

#5
April 16, 2011, 04:04:45 PM Last Edit: April 16, 2011, 04:06:31 PM by zarn02
Quote from: ducpainter on April 16, 2011, 02:57:18 PM
Anything on the sump screen?

Weeeelllllll.... rather embarrassingly, I discovered I don't own a 14mm Allen wrench. After I began my oil change. I'm as unimpressed with this as you are.

Sears also doesn't own one. :P
"If it weren't for our gallows humor, we'd have nothing to hang our hopes on."

zarn02

#6
April 16, 2011, 04:05:40 PM
Quote from: Speeddog on April 16, 2011, 03:05:57 PM
Can you take a pic from a different angle or two?

Here's more pictures.



"If it weren't for our gallows humor, we'd have nothing to hang our hopes on."

ducpainter

#7
April 16, 2011, 04:08:12 PM
Quote from: zarn02 on April 16, 2011, 04:04:45 PM
Weeeelllllll.... rather embarrassingly, I discovered I don't own a 14mm Allen wrench. After I began my oil change. I'm as unimpressed with this as you are.

Sears also doesn't own one. :P
I don't either...

I have a 9/16" that is mildly relieved to kinda hold the front axle on my 96 monster.

No worries.
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


zarn02

#8
April 16, 2011, 04:20:47 PM
Quote from: ducpainter on April 16, 2011, 02:57:18 PM
but it looks like a piece of a steel bearing cage...you know the part that keeps the balls properly spaced and in place.

How does one inspect for this?

(What I don't want to hear, but suspect I will, is "split the cases." :-\)
"If it weren't for our gallows humor, we'd have nothing to hang our hopes on."

ducpainter

#9
April 16, 2011, 04:48:16 PM
Quote from: zarn02 on April 16, 2011, 04:20:47 PM
How does one inspect for this?

(What I don't want to hear, but suspect I will, is "split the cases." :-\)
I had a whole post typed out...

all trying to make you feel better...

you could pull side covers to see what you could see...

but unless it's the bearing in the left side cover...

the repair is accomplished by splitting the cases...

or you could run it and see what happens.
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


Speeddog

#10
April 16, 2011, 05:21:52 PM
Looks like part of a shim washer for the crank (between the crank and main bearing).
Or from a shift drum shim washer.

IMO, the likelihood that it's repairable without splitting the cases is small.

If I were faced with that object on my drainplug magnet, I'd take both sidecovers off to see WTF was going on.


- - - - - Valley Desmo Service - - - - -
Reseda, CA
(951) 640-8908

~~~ "We've rearranged the deck chairs, refilled the champagne glasses, and the band sounds great. This is fine." - Alberto Puig ~~~

drunkfatguy

#11
April 16, 2011, 10:33:52 PM
Quote from: Speeddog on April 16, 2011, 05:21:52 PM
Looks like part of a shim washer for the crank (between the crank and main bearing).
Or from a shift drum shim washer.

IMO, the likelihood that it's repairable without splitting the cases is small.

If I were faced with that object on my drainplug magnet, I'd take both sidecovers off to see WTF was going on.




You are talking about the shim that is right behind the drive gear marked #11 on the attached diagram right? Would/could it have shredded due the Crank Key sheering off and backing into it?

http://i227.photobucket.com/albums/dd58/gothamcycles/schematics/14620651B_15820091A.jpg

Speeddog

#12
April 17, 2011, 03:48:58 PM
That's the shim I'm referring to, but it goes between the main bearing and the crank.
- - - - - Valley Desmo Service - - - - -
Reseda, CA
(951) 640-8908

~~~ "We've rearranged the deck chairs, refilled the champagne glasses, and the band sounds great. This is fine." - Alberto Puig ~~~

Cloner

#13
April 18, 2011, 10:49:10 AM
I'm with Speeddog.  It looks like a spacer shim of some sort. 

These are commonly used to take up manufacturing tolerances (eliminating end play) in areas like cranks, shift forks, transmission assemblies, cam assemblies, etc.  They are often employed as combination spacers and thrust washers.

I'm not familiar enough with Ducati engine internals to guess where it might have originated, but am very familiar with general motorcycle engine design/repair and belive that's what you've found.  You'll want to determine its origin before running this engine more.  The consequences of failure of this type of component are often extreme due to the nature of metal parts running around in areas where they shouldn't be in combination with unrestrained end play and/or thrust loads.
Never appeal to a man's "better nature."  He may not have one.  Invoking his self-interest gives you more leverage.  R.A. Heinlein

'64 Ducati Monza 250
'67 Aermacchi/HD Sprint SS (race bike)
'00 Aprilia RSV Mille
'03 Ducati 800 SS (race bike)
'04 KTM 450 EXC
'08 Kawasaki Ninja 250 (race bike)

Duck-Stew

#14
April 18, 2011, 11:26:29 AM
Quote from: ducpainter on April 16, 2011, 02:57:18 PM
I don't really want to say...I hope I'm wrong...

but it looks like a piece of a steel bearing cage...you know the part that keeps the balls properly spaced and in place.

Anything on the sump screen?



+1 to the above.  I did the same repair to a 996 motor a few years back.  It was from the transmission input shaft RH bearing in the case.  Had to split the cases to take care of it....


Also, a +1 to inspecting what all else is in the sump screen.
Bike-less Portuguese immigrant enjoying life.
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