Quantity of Power Steering Fluid needed 2001 Merc 5.7 EFI

BigPapi

Cadet
Joined
Nov 16, 2013
Messages
6
Engine: 2001 Mercruiser 5.7L EFI / Serial Number: 0L680772
From <https://www.mercruiserparts.com/5-0l-efi-gm-305-v-8-1998-0l012052-thru>
Alpha One Gen II Outdrive / Serial Number: 0L861805

Question: I can not find any documentation on the quantity of liters of power steering fluid that I need to fill my system? Is it 1 quart, 2, 10? Any help appreciated. I have googled, checked the Merc service manual and owners manual and all other documentation I can find. Thanks in advance.
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
51,207
welcome aboard

between 1 and 2 quarts.

fill reservoir, run motor and turn steering lock to lock to burp any air bubbles, top off to full line on dipstick
 

BigPapi

Cadet
Joined
Nov 16, 2013
Messages
6
welcome aboard

between 1 and 2 quarts.

fill reservoir, run motor and turn steering lock to lock to burp any air bubbles, top off to full line on dipstick
Thank you Scott. I appreciate the information. Funny, I spent almost an hour trying to find the answer myself and you got it for me in minutes.
 

Lou C

Supreme Mariner
Joined
Nov 10, 2002
Messages
13,341
When I changed the leaky actuator on mine last fall I had to add about a half a qt to make up for what leaked out when I disconnected the hydraulic lines on the actuator. They don't really hold all that much fluid. Check your actuator carefully for leaks, they are not easy to change due to it being behind the engine mounted on the inner transom plate.
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
51,207
Thank you Scott. I appreciate the information. Funny, I spent almost an hour trying to find the answer myself and you got it for me in minutes.
its not published. work on enough things in life and you build up a bit of knowledge

as @Lou C states, check for leaks. it is faster to pull the drive and motor to fix the actuator leak than doing it with the motor in place.
 

Lou C

Supreme Mariner
Joined
Nov 10, 2002
Messages
13,341
If you're lucky you will have enough access if you ever have to do that job, on my boat I had to remove the seats (5 min job) and exhaust manifolds (20 min) then, was able to get in there. The part that makes it hard is:
OMC/Volvos have 2 big cotter pins for the mount bolts on the transom mount, these are hell to get out. I used a big cotter pin extractor, this worked well but took time.
Merc uses locking plates instead, don't know if they are easier, same or worse, never did a Merc only my OMC. The mounting of these units is very similar from OMC/Volvo to Merc, in fact the old Bendix style units were the same for OMC and Merc, just that OMC painted theirs grey, Merc painted theirs black.
For Merc, Volvo and OMC, then there are the 2 small cotter pins that retain pins that go into the clevis, a big one for the steering arm and a small one for the steering cable. Problem is the cotter pins are on the underside of the clevis, makes for a colorful language job.

I could easily see that on some boats this job is impossible without pulling the engine. My old style boat with the wide open engine compartment is comparatively easy.
steerng actuator removal.jpgsteering actuator intalled.jpgcotter pin extractor.jpg
 

BigPapi

Cadet
Joined
Nov 16, 2013
Messages
6
If you're lucky you will have enough access if you ever have to do that job, on my boat I had to remove the seats (5 min job) and exhaust manifolds (20 min) then, was able to get in there. The part that makes it hard is:
OMC/Volvos have 2 big cotter pins for the mount bolts on the transom mount, these are hell to get out. I used a big cotter pin extractor, this worked well but took time.
Merc uses locking plates instead, don't know if they are easier, same or worse, never did a Merc only my OMC. The mounting of these units is very similar from OMC/Volvo to Merc, in fact the old Bendix style units were the same for OMC and Merc, just that OMC painted theirs grey, Merc painted theirs black.
For Merc, Volvo and OMC, then there are the 2 small cotter pins that retain pins that go into the clevis, a big one for the steering arm and a small one for the steering cable. Problem is the cotter pins are on the underside of the clevis, makes for a colorful language job.

I could easily see that on some boats this job is impossible without pulling the engine. My old style boat with the wide open engine compartment is comparatively easy.
View attachment 357233View attachment 357234View attachment 357235
Thank you for the information
 
Top