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Old 10-09-2012, 10:46 AM   #1
sigpe57 OP
Gnarly Adventurer
Joined: Oct 2005
Oddometer: 348
Guzzi Ambassador Final Drive Leak

Where is the leak coming from? Is an easy fix of just replace the oil seal or time for a complete rebuild?

Thank you for the reply,


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Old 10-09-2012, 11:35 AM   #2
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Joined: Jul 2005
Location: Deltona, FL
Oddometer: 1,633
Well it's not an easy fix. Get a manual and assess for yourself
2006 HD 1200C, 2006 Tri Scrambler, 2001 Duc M900, 2001 Hon XR650L, 1994 HD Heritage, 1989 Hon Hawk GT, 1978 Hon CB750K / sidecar, 1977 Guzzi 850 LeMans, 1976 Hon CB750K, 1965 Hon 305 Dream, 1973 Nort 850 Commando, 1971 Tri Trophy 650, 1970 Hon Trail 90, 1970 Tri Tiger 650, 1973 Hon Z50, 1984 Yam Virago 1000, 1981 Hon Passport 70, 1970 Suz T250, 1971 Yam RT1 360, 1965 Hon CT200
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Old 10-09-2012, 12:07 PM   #3
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Joined: Aug 2009
Location: Southern Illinois
Oddometer: 960
Easy enough, get a new seal and gasket and do it....
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Old 10-09-2012, 02:33 PM   #4
mostly paved
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Joined: Mar 2012
Oddometer: 374
Try replacing just the big seal first. Clean everything well before doing anything.

No gaskets needed, but be careful prying that sucker out. Once it's out, check the seal lip and the surface it rides on for grooves. If there's a groove, you can drive the new seal in slightly deeper or less deep to put the lip on a non-grooved surface.

If you need to replace the big flange gasket, get two. I think there are shims in there between the case and the flange to set the ring and pinion lash. See #24 and #25 here:
Life's too short.

F_Sahms screwed with this post 10-09-2012 at 02:42 PM
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Old 10-10-2012, 05:49 AM   #5
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Joined: Oct 2009
Oddometer: 88
ditto... look inside and see if it is coming from inside the spline. if so it is the inner seal. if not it is the outer seal, tit simple to replace. pry old out, hammer new in...
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Old 10-10-2012, 08:26 AM   #6
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Best resource on the net for Loop's!
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