1994 V4 140HP Evinrude Fuel Water Separator

Repair or modification of Boston Whaler boats, their engines, trailers, and gear
Don SSDD
Posts: 313
Joined: Fri Oct 23, 2015 6:58 am
Location: Nova Scotia

1994 V4 140HP Evinrude Fuel Water Separator

Postby Don SSDD » Sun Jul 03, 2016 1:54 pm

I changed my spin-on fuel-water separator, and now I can't get any fuel pressure with the bulb. I pre-filled the new separator with fuel being installing it.

Should the bulb pump up like normal?

I had not yet started my boat this season. Would the next logical step be to change-out the fuel line and bulb from the separator to the carburetor?

Or is there something else I could do to get fuel pressure in the bulb?

My first boat with a fuel tank and fuel separator.

Thanks,
Don
!991 Guardian 19
Previous 1987 Montauk 17
1986 Outrage 18 with 2001 Honda 130 HP
Former Owner 1991 Guardian 19 with 1994 Evinrude V4 140HP
Former owner 1987 Montauk with 1998 Mercury 90HP
Nova Scotia

Acseatsri
Posts: 190
Joined: Tue Oct 20, 2015 8:46 am

Re: 1994 V4 140HP Evinrude Fuel Water Separator

Postby Acseatsri » Sun Jul 03, 2016 2:14 pm

Try holding the bulb straight up and down. Also, compress the bulb as much as possible, repeat quickly as soon as it returns to its normal shape. I had this same concern when I changed my filter along with a very low fuel level in the tank.

The other possibility is that the filter didn't seal perfectly. I always use a light coating of grease on the seal before I screw it on.

Don SSDD
Posts: 313
Joined: Fri Oct 23, 2015 6:58 am
Location: Nova Scotia

Re: 1994 V4 140HP Evinrude Fuel Water Separator

Postby Don SSDD » Mon Jul 04, 2016 6:19 am

I used a bit of grease on the spin on on the rubber seal and tried your advice to hold the bulb up and down: still no result.

I figured all the bulb is doing is acting as a syphon to get fuel from the tank to the motor, so I removed the bulb and tried my lower unit lube fill pump. It fit nicely "in-line" inside the 3/8-inch-ID fuel line where the bulb was. It gave a lot more suction than the bulb and I got the fuel system primed easily, then I put the bulb back in. All's well now, thanks.
Don
1986 Outrage 18 with 2001 Honda 130 HP
Former Owner 1991 Guardian 19 with 1994 Evinrude V4 140HP
Former owner 1987 Montauk with 1998 Mercury 90HP
Nova Scotia

jimh
Posts: 11670
Joined: Fri Oct 09, 2015 12:25 pm
Location: Michigan, Lower Peninsula
Contact:

Re: 1994 V4 140HP Evinrude Fuel Water Separator

Postby jimh » Mon Jul 04, 2016 9:45 am

Get a new BRP OEM primer bulb.