I was compemplating replacing the on-engine CAV filter, as changing the filter on the westerbeke
w30 in an allied seawind
II is nothing short of a mind-boggling pain in the balls - you can barely see the filter to begin with, then need to hang by your toes with wrenches fully extended to do ANYTHING with it, never mind being careful about contamination, etc.
the existing CAV filter appears to have 2 in and 2 out ports
, plus a top vent.
from the tank come into one entry point, return from the injector pump
comes in the other, and one output goes to the injector pump
, while the final 'port' is blanked off.
Injector return appears to go to the vent, where it connects to the tank return line.
It looks like I can easily do all this with a standard racor120a, with the exception of the vent hookup.
Can I use the second filter head
output as 'vent'?
do I need to get an appropriate fitting for the racor
(3/8-24) and use that for vent?
Do I need to acquire check valves so injector overflow doesn't go into the 'vent'?
Can I send injector overflow directly to the tank?
Has anyone done this?