Tube shape filter ? SAE 1171

Douglas Alderman · 07-19-2009, 08:29 PM

What is the tube shape filter next to the fuel pump do on my 5.0 2005 Merc. Shaped is 1 1/2 by 5 in. with two wire on top. fuel line is attached to it.

WetWilly · 07-20-2009, 09:50 AM

Hi Douglas,

Picture's worth a thousand...

Anyway, it sounds like "that's" your electric fuel pump. Is your motor fuel injected or carbed?

WetWily

Douglas Alderman · 07-20-2009, 09:53 PM

5.0 Carb. I will try and take picture of it.

Douglas Alderman · 07-23-2009, 11:05 PM

0723091043a[1].jpg] This is the filter in Question!

Douglas Alderman · 07-25-2009, 12:13 AM

Is that an electric fuel pump?

***ShabahZ280*** · 07-25-2009, 02:08 AM

It sure looks like it. This is from mercruiserparts.com it's on the diagram for the 5.0L engine, and it's listed as a "fuel pump assembly"

What's odd though, the SAE J1171 as listed on the sticker is a part number for an alternator.

WetWilly · 07-27-2009, 09:44 AM

Hi Guys,

SAE 1171 is a NMMA Certification for the part and not the part number. I believe it referrers to "External Ignition Protection of Marine Electrical Devices" so all of our electrical parts should be SAE 1171 certified and they maybe labeled as so.

Douglas, I remember reading that some of the Mercruiser motors use a "booster" pump, so if you don't have a mechanical pump, it's your primary, but if there is a mechanical pump, it's your "booster".

WetWilly

Tube shape filter ? SAE 1171

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