Basic question but when installing a new fuel filter/water separator do you put anything on the threads of the screw in sensor on the bottom or just screw it in snug?
Basic question but when installing a new fuel filter/water separator do you put anything on the threads of the screw in sensor on the bottom or just screw it in snug?
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Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
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What motor?
Sorry for the delay. 2004 Mercury 3.0L 200 EFI
OT922128
Last edited by Meena; 03-22-2018 at 02:22 PM. Reason: Serial # added
I have 2003 vintage of same motor, nothing on the threads for 14 filter changes for me. The rubber seal does the "holding", like an oil filter on your car.
Sorry not the filter itself but the sending unit that screws into the bottom of it were the wire hooks up. Also how far into the filter does it go?Originally Posted by MikeKz
Gotcha - you're talking about the esnsor that screws into bottom, after removing hex plug. I always used plumber's Teflon tape. Sung-to-tight will get you there. Prime until bulb is hard, check for leaks.
Water in fuel sensor. Though not required, I use PTFE paste on threads.
_______
Phil
'09 Hewescraft ProV
'09 150 Optimax
I use Teflon Tape.
Well I got it done. Ended up using Teflon tape ad screwed it up flush and snug. Ball tightened up and no leaks. I will check again later just to make sure. Thanks for the help.
I would NOT use Teflon tape, only liquid PTFE type sealers
+1
"Perfect Seal" or PTFE Based Paste-Sealant.
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor
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