Author Topic: V7 III oil leak, possibly rear main seal  (Read 1359 times)

Offline jas67

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V7 III oil leak, possibly rear main seal
« on: May 02, 2020, 08:00:18 PM »
Much to my dismay, my 2017 V7 III Special marked its territory sometime between parking it yesterday afternoon and this morning.   :angry:





The oil appears to be coming from between the engine and transmission.

Has anyone else had this problem?
This bike is only 3 years old with 4,400 miles on it.   Any chance Moto Guzzi would help me out on this (I didn't think so)?
2017 V7III Special
1977 Le Mans
1974 Eldorado
2017 Triumph Thruxton R
2013 Ducati Monster 796, 2013 848 Evo Corse SE, 1974 750GT, 1970 Mk3d 450 Desmo, 1966 Monza 250
1975 Moto Morini 3 1/2
2007 Vespa GTS250
2016 BMW R1200RS, 80 R100S, 76 R90S ,73 R75/5
76 Honda CB400F, 67 305 Super Hawk, 68 CL175

Offline moto-uno

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Re: V7 III oil leak, possibly rear main seal
« Reply #1 on: May 02, 2020, 08:07:21 PM »
  Depending upon what oil was used in the trans , some of the (trans oils) will have a bit of rotten egg smell to them .
Give it a wipe and sniff . Unfortunately , either will require separating the motor from the trans and then it's usually pretty obvious .
Peter

Offline usedtobefast

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Re: V7 III oil leak, possibly rear main seal
« Reply #2 on: May 02, 2020, 09:51:48 PM »
Are you sure oil didn't drop down from somewhere else?  I thought the typical rear main seal leak only shows up at the bottom between the engine and clutch housing. 

On my Quota, it was leaking a decent amount (several spots on the back of the engine), and all that oil dripped out the tiny drain hole on the bottom ... the spots you pics are showing stayed completely dry on my bike.

Have you pulled your airfilter and looked inside the airbox ... dry?  or oil in there?

I've betting it is from something else. 
2017 V7 iii Racer
2017 Griso
2016 Stornello
2000 Red Quota
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