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A noob Moto Guzzi drive shaft question

R

Runner130

Just got it firing!
Joined
Jan 4, 2022
Messages
16
Location
Croatia
Hi all,

I am for first time encountering Moto Guzzi. Currently I have stripped everything down, will pain chassis.
A stupid question, when I was dissembling drive shaft from engine there is a rubber connection connecting drive shaft and engine. When I disconnected it there was no oil in it but when I carried it back end of drive shaft was facing down and approx 1 dcl of oil came out of it. Should oil be there or not :)?

IMG 20220104 WA0005
 
The rubber part you show is the drive shaft boot. It is there to prevent water and dirt from entering the assembly. There should be no oil there. As to the other end, the rear drive vents to the drive shaft housing part of the swing arm. It is not unusual to find oil there. Oil at that location may indicate the rear drive was over filled, or the output seal of the gear box is leaking. A gearbox leak would also see a film of oil inside the drive shaft boot. It helps to till us what model bike you are working on, but the swing arm picture gave it away as a Tonti frame bike.
 
Thanks John, it is T5 850 1984 model. Yes, my main question is where it came from. Funny enough there was no single drop on the ground just when I dissembled it from the gearbox. When I have everything down I would like to change what is necessary.
When I disconnected the drive shaft from the rim part it was also covered with oil, but strange oil more like little bit of of oil together with water
 
And seal from the gearbox looks like not letting any oil, not even after week a single drop IMG 20220103 WA0001
 
While you have it apart, replace every seal and o-ring that you can. You shouldn't need to replace the shift return spring as the T5 has the updated spring. So you are looking at engine rear main, Gearbox input seal and the o-rings under the hub bear. Gearbox output seal (it does look like it was leaking) and the o-ring on the clutch push rod and maybe the thrust bearing. Also the rubber seals on the clutch push rod. It helps to have the special tools to align the clutch plates and to get the gland nut of the input gear and the gearbox output nut. Some folks have impact sockets for some of these and it does make the job a little easier. Be careful with the gearbox output, there is a long spline groove on the output shaft and a small steel ball resides there to drive the speedometer gear. If you lose the ball it isn't fun. If you can get help from someone that has been in one of these to help you it will be even easier.
 
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