What is this black thing?? - Ducati Monster Forums: Ducati Monster Motorcycle Forum

» Site Navigation
» Other Ducati Motorcycle sites
» Insurance
» Sponsors
» Our Partners
»ATV Reviews
»Motorcycle Games
Thread Tools Display Modes
Old 11-13-2012, 02:53 PM   #1 (permalink)
Junior Member

Join Date: Apr 2007
Location: Hawaii
Posts: 29
Default What is this black thing??

When changing oil I've noticed the black blob at the bottom of the oil filter area.
It feels like hard rubber, has irregular margins and cracks, and looks like chunks of it
may eventually come off. I was not able to peel off any of that with my finger nail, pretty
sure some of it would come off if I got more assertive with a screwdriver or so.

What is it? Is it some sort of a deformed rubber plug?
My consolation is that in case it comes loose, the oil filter will capture it.

Pics attached:

__________________________________________________ __________________________
'08 S2R 1000, '05 FZ1, '04 DRZ400S, '01 ZRX1200

Last edited by Snailster; 11-13-2012 at 02:56 PM.
Snailster is offline   Reply With Quote
Sponsored Links
Old 11-13-2012, 07:09 PM   #2 (permalink)
Super Moderator

caferacermike's Avatar
Join Date: Mar 2010
Location: Austin, TX
Posts: 3,053

It is part number 79920772A oil bypass spring.

Here is a picture of one that has no deformation,

Obviously a stolen pic from Ebay.

Dealer replacement price: $10.99

I was hoping to send you to Ebay to buy it from Gotham but their price is double that for a used item. I would normally have recommended them.

Use this parts fiche, http://issuu.com/ducatiomaha/docs/ms...ine&mode=embed Page 26 for a line drawing of it and how it is mounted and page 27 for part numbers. Looks like a small piece of pipe unscrews and is a quick swap for a new one.

Good luck and I hope that helps you.

And no, I do not know why it is dipped in rubber, nor why it degraded. Generally a bypass spring is there in case the filter gets clogged, then the pressure won't build up and blow out the filter. It will keep circulating throughout the engine until the filter is changed out.
06 Paul Smart Sport Classic NFS ever.
08 S4RS Tricolore #081 NFS ever.
01 M600, aka, The Pink Monster
97 900SS CR
72 Norton Commando 750
03 KX60 with S4R rear shock,Honda CB350F, Hodaka Ace90, 3x Yam-YGS1, Yam-CS3 200, Vespa small frame, Gilera 106, Puch Sabre, Puch 50 Boy Racer, Ducati 250 bevel, Benelli 250, Benelli 360, Honda CB350T, and many more.
caferacermike is offline   Reply With Quote
Old 11-13-2012, 09:59 PM   #3 (permalink)
Junior Member

Join Date: Apr 2007
Location: Hawaii
Posts: 29

Excellent observation Caferacermike!
On the image below the rubber thingy is not obvious, but perhaps the end
of the spring is rubberized to create a gasket of source.

I just hope the rubber did not melt due to overheating.

Thanks for the input!

__________________________________________________ __________________________
'08 S2R 1000, '05 FZ1, '04 DRZ400S, '01 ZRX1200
Snailster is offline   Reply With Quote
Sponsored Links

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 12:49 PM.

Powered by vBulletin® Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0
Motorcycle News, Videos and Reviews
Honda Grom Forum Harley Davidson Forum Honda 600RR Forum Kawasaki Forum Yamaha R6 Forum Yamaha FZ-09 Forum
1199 Panigale Forum Honda Africa Twin Forum Roadglide Forum Honda CBR1000 Forum Vulcan Forum Yamaha R1 Forum Yamaha R3 Forum
Ducati Monster Forum Harley Forums Honda CBR250R Forum ZX10R Forum Star Raider Forum Yamaha Viking Forum
Suzuki GSXR Forum V-Rod Forums Honda Shadow Forum Kawasaki Motorcycle Forum Star Warrior Forum KTM Duke 390 Forum
SV650 Forum BMW S1000RR Forum Honda Fury Forum Kawasaki Versys Forum Drag Racing Forum Ducati 899 Panigale Forum
Suzuki V-Strom BMW K1600 Triumph Forum Victory Forums Sportbikes BMW NineT Forum
Volusia Forum BMW F800 Forum Triumph 675 Forum MV Agusta Forum HD Street Forum Suzuki GW250 Forum
Yamaha Motorcycles Victory Gunner Forum Victory Charger Forum Honda Vultus Forum HD LiveWire Forum Ninja H2 Forum
BMW Scrambler Forum Ducati Scrambler Forum Kawasaki Ninja 250SL Forum