Hi Rick- There are three filters and I was planning on changing all of them since I have no idea how old they are (>3 years). The Racor is a 30µm filter. It sounds like this one needs to be bled, so I am guessing there is a bleed screw on top, so I would fill the bowl, loosen the screw and then turn on the pump switch until fuel comes out the screw. The second is a spin on filter on the engine. Do you just swap it or fill it with diesel first? The third is the “trash filter” which the manual just calls a fuel filter and looks like just a mesh basket. Presumably you would just swap new for old. Not sure I am going to bother with that since I suspect it is going to be challenging to get to with limited access to that side of the engine.
Thanks- Dave > On Mar 30, 2017, at 7:17 PM, Rick Brass via CnC-List <[email protected]> > wrote: > > Depends on which filter you’re talking about. > > The Kabuto based Universal diesels I’ve had experience with (ditto the Betas) > are self-bleeding. So if you’re changing the 10 micron filter on the engine, > you just need to turn on the switch to activate the lift pump, and crank the > engine. It might take a few extra seconds of cranking and a bit of throttle, > but it will start. > > If, OTOH, you are talking about a Racor primary filter that is between the > tank and the lift pump, you do have to bleed that one. But the Racor has so > much filter area compared to the fuel flow in a small diesel that – unless > you get into a batch of bad fuel – it doesn’t need changing very often. I > think I’m on the third Racor in 14 years of owning my 38. > > As far as the 70-80 micron trash filter that is before the lift pump, if you > have a Racor primary filter there is no real point in replacing this little > filter. > > Rick Brass > Washington, NC > > > > From: CnC-List [mailto:[email protected]] On Behalf Of David > Knecht via CnC-List > Sent: Thursday, March 30, 2017 8:29 AM > To: CnC CnC discussion list <[email protected]> > Cc: David Knecht <[email protected]> > Subject: Stus-List Fuel filter replacement > > I hate to admit this, but I am going to replace the fuel filters on my > Universal M4-30 this spring, and I have not done it before on this engine. > The manual says it has a continuous bleed system. What it doesn’t say is > what that means. Does it mean I can just replace the filters, turn on the > fuel pump and it will bleed itself so I don’t have to open any bleed screws? > If so, I want to buy a bottle of rum for whomever designed the system. I am > thinking back to the wrestling matches I had with my previous Yanmar after > changing filters. Thanks- Dave > > Aries > 1990 C&C 34+ > New London, CT > > <image001.png> > > _______________________________________________ > > This list is supported by the generous donations of our members. If you wish > to make a contribution to offset our costs, please go to: > https://www.paypal.me/stumurray <https://www.paypal.me/stumurray> > > All Contributions are greatly appreciated! Aries 1990 C&C 34+ New London, CT
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