Fuel Pump Replacement - Drain Oil First?

[gwa584]

Do I need to drain the engine's oil before replacing my fuel pump?

I know the diaphragm separates the oil side from the gas side, but if the engine has been sitting I would assume all the oil is in the pan and thus will not start pouring out (other than just residual oil) if I remove the fuel-pump bolts, right?

Thanks.
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Background Info:
- 165hp Mercruiser/Mercury Marine inline 4-cylinder/224cid engine
- Closed cooling system and an Alpha One outdrive.
- Mercruiser Transom Assembly Serial #: 0B689578
- Mercruiser Drive Unit Serial #: 0B701774
- Mercruiser Engine Serial #: B731211

 

[mkast]

Re: Fuel Pump Replacement - Drain Oil First?

If I remember correctly, the sump, which holds the oil, is quite abit lower than the fuel pump. Ofcourse, I'm assuming the engine is NOT laying on it's side.

 

[havasuboatman]

Re: Fuel Pump Replacement - Drain Oil First?

No, you do not have to drain the oil

 

[gwa584]

Re: Fuel Pump Replacement - Drain Oil First?

Thanks!