Fuel filter 4,3L V6 Mercruiser 1992

thrasher

Chief Petty Officer
Joined
May 23, 2007
Messages
443
Okay guys, after all these discussions about stalling boats and the need to check fuel filters, I figured I would check my fuel filters to be sure.
I have a 1992 4.3L V6 mercruiser engine, I removed the metal gauze filter in the carburettor and cleaned (it was very clean!). I then thought I would remove the fuel filter in the mechanical fuel pump and replace it.
On opening the fuel pump I discovered the fuel filter is not a paper catridge as I was expecting, but some form of pourous stone.. I have blown all over it with compressed air (and it looks clean) but I am not really sure if you clean this type of filter or just replace it (I have never seen a filter made of stone before!!).
How do I know if it needs replacing? I have not had any fuel problems with my boat, I was just cleaning the filters as a preventative measure..

Many thanks

Gary
 

thrasher

Chief Petty Officer
Joined
May 23, 2007
Messages
443
Re: Fuel filter 4,3L V6 Mercruiser 1992

Bump, Anyone have an idea?
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: Fuel filter 4,3L V6 Mercruiser 1992

The best thing you can do for your setup is to replace that filter, then install a water seperating fuel filter between the fuel pump and the fuel tank. Then you shouldn't have to worry about that one or the carb filter again.
The Mercruiser PN for that fuel pump filter is 35-803897Q1
 

WAVENBYE2

Lieutenant Commander
Joined
Apr 28, 2007
Messages
1,636
Re: Fuel filter 4,3L V6 Mercruiser 1992

This is how Don,Haut Metoc, and every one told me to do.Same set up to what Don S said.
 

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thrasher

Chief Petty Officer
Joined
May 23, 2007
Messages
443
Re: Fuel filter 4,3L V6 Mercruiser 1992

Thanks guys,

I went to my local boat shop and they told me the stone filter has been superseeded by a new paper filter. I bought the paper filter and will install it tonight. I have been thinking about a water seperator, I will look again..

Thanks Gary
 
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