What?s next after long storage? 150 EFI

8100LT

Recruit
Joined
Jun 4, 2008
Messages
2
1996 Mercury 150 EFI on Ranger 461VS stored inside for 4 years! It was prepped for storage, just sat much longer than expected. Besides the normal fluids and tune-up items, what do I do? Drain / fresh fuel top of the list. Do I have the injectors cleaned, fuel pump / fuel pressure regulator replaced, or just dive in and start it?

Steve
 

1979mercTN

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Jun 2, 2008
Messages
21
Re: What?s next after long storage? 150 EFI

I just started working on my parents' 1979 80HP that's been in the garage for 20 years. It wasn't winterized before it was put away and they left 6 gallons of gas in the tank. This is my first outboard engine project, but so far I've learned: drain the old/dirty fuel, clean fuel pump, carbs and plugs. 4 years isn't THAT long. You'll probably be ok.
 

Barnacle_Bill

Admiral
Joined
Feb 8, 2004
Messages
6,469
Re: What?s next after long storage? 150 EFI

Replace the impeller as they can dry rot from sitting. Change the oil the L/U.
 

Faztbullet

Supreme Mariner
Joined
Mar 2, 2008
Messages
15,931
Re: What?s next after long storage? 150 EFI

Drain & flush the vapor seperater tank, If you turn key on and do not hear the fuel pump come on, turn off so you wont damage driver in ecu. A new pump is high and ecu is higher!!
 

j_martin

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Sep 22, 2006
Messages
7,474
Re: What?s next after long storage? 150 EFI

Drain & flush the vapor seperater tank, If you turn key on and do not hear the fuel pump come on, turn off so you wont damage driver in ecu. A new pump is high and ecu is higher!!

Sometimes a shot of PB blaster will get the pump going.

hope it helps
John
 

1979mercTN

Cadet
Joined
Jun 2, 2008
Messages
21
Re: What?s next after long storage? 150 EFI

I just took the impeller out of my 79 that's been sitting for 20 years. Surprisingly, it's not brittle at all and only slightly bent. I'm going to replace it anyway while I have the bottom apart.
 
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