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Go Back   SailNet Community > Boat Builders Row > Pacific Seacraft > Yanmar 4JH2E External Fuel Pump
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Thread: Yanmar 4JH2E External Fuel Pump Reply to Thread
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Topic Review (Newest First)
10-29-2010 04:29 PM
RainDog My pump went out last week while cruising. Could not start the engine. At first I thought it was clogged filters (engine stopped while charging the batteries in large waves), but after changing both filters and ruling out several other things, realized the fuel pump was not really working. A kind soul sold me his spare (a larger pump than my broken one) and it ran great for 20+ hours of motoring up the ICW home.

Does anyone think the upgrade to a larger pump may be a bad idea?
10-20-2010 05:16 PM
andantesail The Replacement pump is a Walbro Model FRB-13-2
Karl
Andante PSC 34 #276
10-20-2010 02:04 PM
andantesail I have the same issue and a replacement is being put on today. Boat's in Kemah and I'm in Corpus Christi, so I can't test it, but I do expect a call from the mechanic later once it's on and working. If it works, I'll make another post with details.

Karl
"Andante" PSC 34 #276
09-01-2010 03:31 PM
SVArgo Thanks Dave! You may have saved me $120. At least until it breaks again at which point I'll hopefully be gainfully employed. Not sure if the bellows kit is what it needs, but worth the $22 to find out.

Ryan
09-01-2010 03:04 PM
Mythago Interesting..... I think I may need to follow some wires and find out what's going on.

If it's just the bellows in your pump that's gone, I see there are rebuild kits available

BargainBoatParts.com - Walbro Bellows Electric Fuel Pump Rebuild Kits
09-01-2010 02:51 PM
SVArgo
No Switch

Dave,

There is no switch in our system. The pump comes on when the engine key is in the on position and stays on (as needed). There is a fuse adjacent to the pump, and under the assumption that it is a flow through pump while running or not (per specs and the dealer rep) I may just take the fuse out to cut down on pump wear since the only time I'm going to use it is to refill the RACOR, in which case I'll be down in the hole anyway.

Ryan
09-01-2010 02:23 PM
Mythago We have the same type of arrangment on our 1995 37, hull 301..... I have an identical spare pump in my stash and it is a Walbro WEP 12. Other markings on the package
Bellows universal electric fuel pump
for carbureted vehicles
12 volt, 4.5 - 7 psi Replaces Autopulse 2101, Dupree 801

Out of interest.... where is the switch for your pump? Is it a pull switch (similar to the macerator or shower pump) located underneath the battery selector in the quarterberth?

Dave McClorry S/V Mythago
08-16-2010 06:46 PM
SVArgo
Walbro 2401

Quote:
Originally Posted by teejayevans View Post
Most probably an old Walbro 6xxx series, search for Walbro and FRB-13 which is a replacement.
Tom
I got a response from Yanmar North America. They directed me to Boatswain's Locker in Costa Mesa, CA. The service rep there was very helpful and actually spent a good bit of time looking through the old PacSea orders, which only went back to 1999.

After much looking, we figured out that it was a Walbro 2401 bellows style pump, which has since been discontinued. The closest thing is either a Walbro FR series reciprocating pump, the FRD-1 or the FRB-13 as Tom noted, both have USCG approval, the FRB-13 has the salt spray test approval in addition.

Stewart-Warner also has a 235A-D pump which fits the bill.
08-16-2010 05:09 PM
teejayevans Most probably an old Walbro 6xxx series, search for Walbro and FRB-13 which is a replacement.
Tom
08-16-2010 01:14 PM
k1vsk We have a 4JH2E and it does not have an external fuel pump which leads me to believe someone has added one to your fuel system. It really makes no difference what you have presently as any fuel pump of sufficient capacity can't hurt. The fuel flow rate is specified in the engine service manual. PM me if you don't have one and I'll look it up.
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