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Gear cluster shaft/auxiliary input shaft bearing play
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@kudu avatar
Kudu
UTC
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1979 P125X, 1983 P125X America
Joined: UTC
Posts: 25
Location: Florence, Italy
 
Kudu
Member
@kudu avatar
1979 P125X, 1983 P125X America
Joined: UTC
Posts: 25
Location: Florence, Italy
UTC quote
I am in the process of replacing my PX125 engine bearings and seals and while I was cleaning the gear cluster to prepare it for re-install I noticed that I can slide the bearing on and off the shaft by hand with no force.

Is this normal? Given that all the other ball bearings have to be pressed in or pulled out using tools, this does seem odd to me...
@finyoshi avatar
FINYoshi
UTC
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Parmakit Primavera -74, Polini Primavera -68, VR-One 228 150 Touring -59, VMC 177 Bajaj Chetak 125 -95
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Posts: 785
Location: Finland
 
FINYoshi
Addicted
@finyoshi avatar
Parmakit Primavera -74, Polini Primavera -68, VR-One 228 150 Touring -59, VMC 177 Bajaj Chetak 125 -95
Joined: UTC
Posts: 785
Location: Finland
UTC quote
Does not sound normal if you are talking about the main shaft bearing that sits right next to the wheel hub.
@108 avatar
108
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V range 50s
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108
Ossessionato
@108 avatar
V range 50s
Joined: UTC
Posts: 2427
UTC quote
Yeah not normal.

Either the bearing or shaft is worn or both.

Usually test it with a new bearing. If it slides on, it's time to replace the driveshaft.
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