Micra 110
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A quick reference for owners when replacing them 
K10 1982-88
TOP Cooling pipe (OD 32mm) (ID 24mm)
Bottom Cooling Pipe (OD 32mm (ID 24mm)
Rear Cooling Pipe x 2 (OD 22mm) (ID 18mm)
Breather pipe (OD 32mm) (ID 16mm)
Petrol pipe (OD 12mm) (ID 6mm)
Vacuum pipe (OD 8mm) (ID 4mm)
There are others on the 1.2 too please add to the list if you know what size
K10 1982-88
TOP Cooling pipe (OD 32mm) (ID 24mm)
Bottom Cooling Pipe (OD 32mm (ID 24mm)
Rear Cooling Pipe x 2 (OD 22mm) (ID 18mm)
Breather pipe (OD 32mm) (ID 16mm)
Petrol pipe (OD 12mm) (ID 6mm)
Vacuum pipe (OD 8mm) (ID 4mm)
There are others on the 1.2 too please add to the list if you know what size
