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post #11 of Old 02-23-2020
Maine Sail
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Re: Polishing fuel filter change procedure

Originally Posted by krisscross View Post
This is a fine polishing filter past the Racor filter, just before the injection pump.
That filter is just the OE Yanmar filter as you would find on a tractor engine. They are 10-15 micron rated depending upon the Yanmar supplier they ordered from. Changing them is simple.

Shut off fuel at tank
Stuff some rags under the filter bowl
Unscrew the knurled ring
Drop the bowl
Replace the filter and o-ring
Put it back together

To bleed simply loosen the top screw on the housing and prime the manual pump lever on the fuel pump. Do have the crush washers on-hand for bleeding as they often fail to seal after bleeding the on-engine filter.

-Maine Sail / CS-36T

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