Beta Marine Beta 10 Operator's Maintenance Manual page 17

STERN GEAR LUBRICATION
19 Stern Bleed Feed
20 Standard Exhaust with Stern Bleed
Beta 10 to Beta 60 - can be connected to the heat
exchanger end cap using our 'Stern Bleed kit' and drilling
and tapping the end cap.
If your installation requires a water 'bleed' for stern gear
lubrication of the cutlass bearing it can be taken from the
engine as it leaves the heat exchanger.
21 Stern Bleed with Anti-syphon Valve
Beta 75 upwards - need a 'T' piece with an 1/8" BSP
connection fitted just after the heat exchanger as shown
in the drawing. It is important that this 'feed' is taken
from the engine side of an anti-syphon valve or you can
'hydraulic' the engine with catastrophic results.
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