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Old 26 September 2015, 07:36   #1
Country: UK - England
Town: Bideford
Make: Bombard Aerotec
Length: 4m +
Join Date: Aug 2014
Posts: 328
mariner mercury 3 hp no water from tell tale

Hi all

I haven't actually used this little 2 stroke outboard for a long time but I start it up and check it over a couple of times a year. Anyway I just started it up and no water is coming out of the telltale. Checked the impeller, all fine. Any suggestions? It's not had salt water in it for a long time.



simonafloat is offline   Reply With Quote
Old 26 September 2015, 08:26   #2
Country: UK - England
Town: East Anglia
Boat name: Nimrod II
Make: Aerotec 380
Length: 3m +
Engine: Suzuki DF20 EFI
Join Date: Nov 2007
Posts: 3,552
Well.. I've a thread with pics I'm going to upload soon... just for the info... of a Mariner 4 that similarly hasn't been used for a while but I wouldn't have thought would have suffered from salt... however it was choked with salt crystals all around the powerhead water passages such that the pee stream had all but stopped.

Fenlander is offline   Reply With Quote
Old 27 September 2015, 01:13   #3
Country: Canada
Town: Southern Ontario
Boat name: -Unknown-
Make: SeaMax
Length: 4m +
Engine: Merc/Minn Kota
Join Date: Mar 2012
Posts: 216
When I lived on the west coast, it was a no brainer that part of any fishing/leisure trip out in the Ocean included a fresh water flush at the end of the day. People who kept their boats moored either had it professionally flush at the end of the season or removed mid-size boats monthly to do just that.

Mean time it helped to keep the engine in the water (not raised) to limit the amount of air entering the lower unit and rapidly accelerating salt-corrosion build up at and inside the pump.
Nightfisher is offline   Reply With Quote
Old 27 September 2015, 12:35   #4
Country: UK - Wales
Length: 4m +
Join Date: Sep 2015
Posts: 22
Get a length of strimmer cable and poke it up the telltale hole ---- don't use wire --- this cleared a similar problem we had on a small "get you home" Mercury.
Hope this helps.
Kev UK is offline   Reply With Quote

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