I tried to search this forum but could find what I'm looking for.

I need to order parts for a Merc HP575SCi for a spring tune up.

Aside from the oil, fuel filters, plugs, cap rotor, impellars, and blower oil change, what else should I replace? These engines have little over 50 hours on them. They are the first year of the HP575's.

I guess I should check the fuel pump oil too.


Anything else I should do?

I am not sure on this one .

TT anybody else???

Make sure to replace fuel pump oil. More than every 50 hours.

I have twin 575SCi's with 100 hours. I have never heard about fuel pump oil. Do the fuel pumps really hold their own oil?

The Fuel Pumps Dont Hold The Oil, The Housing That They Bolt To Does.

Be sure to change the high pressure fuel filter on the back of the port cylinder head as well. And yes, change the oil in the sea pump. This oil usually gets contaminated with fuel. The bummer deal is if your not pulling it off to check the sea pump, you are now. Its kinda when you replace the impeller once a year because you dont want it to cause you down time that following summer, do the oil change then. Kill 2 birds with 1 stone.

My .02.

John S

Didn't the first year 575's have a recall for a fuel line?? Check with Mercury.