high pressure pump mercury optimax 225 humming noise

SST1

Cadet
Joined
May 1, 2011
Messages
11
Hi @ all,

I have a mercury optimax 225, 2003, 201 h.

since yersterday, suddenly my high pressure pump does a humming noise when I turn key to ignition...
not every turn, but almost, sometimes there is the normal whhiiiip...

if I started the engine and run for a few seconds, then turn the key for ignition is the normal whhiiip...
after that turn the key off and turn in a few seconds again on ignition (without starting) the humming noise comes again...

the engine starts every time as normal, but I didnt test it on the water, cause Im afraid that the engine fails...


Does anyone have an idea..?

thx.
 

SST1

Cadet
Joined
May 1, 2011
Messages
11
Re: high pressure pump mercury optimax 225 humming noise

oday, we looked for the problem....
It is not the pump ist the relay...
 
Top