Renault RC16D Marine Engine (Reverse Gearbox Faulty)

Engine runs well, no crankcase pressure, smokes a little.
Reverse gearbox slips in forward gear.
Alternator is not aligned with the crankshaft pulley. Not original.

Engine
Engine make: Renault
Engine type: RC16D (staat al op foto)
Year of manufacture:
Power: 16 hp
Revolutions: 3100 rpm
No. of cylinders: 2
Fuel: Diesel

Dashboard
Dashboard: Yes
Intermediate cable: No

Cooling system type:
Outside water cooling

Reverse gear:
Ratio: 2.39/2.20
Type: AS 16

Dimensions:
A = 660mm
B = 475mm
C = 620mm
D = 225mm
E = 420mm
F = 275mm