Trim Pump Replacement

aanda6

Petty Officer 2nd Class
Joined
Jun 28, 2005
Messages
122
I have a 1977 115hp v4 crossflow with the original power tilt. The motor and pump are cactus. I have the opportunity to buy a mercruiser pump very cheap. My question is does any one know how easy it will be to retro fit this pump? I can install it inside the boat. Are the fittings the same or will I need to get new hoses? Can this be done or am I wasting my time?
 

aanda6

Petty Officer 2nd Class
Joined
Jun 28, 2005
Messages
122
Re: Trim Pump Replacement

come on guys, someone must know.
 

DHPMARINE

Captain
Joined
Dec 16, 2003
Messages
3,688
Re: Trim Pump Replacement

I don't think you'll find too many who have done this.But a pump is a pump,a cylinder is a cylinder.Oil makes both work.So it can be done.I doubt anything will thread into each other,and the hoses/lines from inside the boat,cannot interfear with the motor pivoting up and down.<br /><br />What does the original tilt need ?<br /><br />If you need a motor,or resevoir and motor,try ARCO. They had them last year.<br /><br />DHP
 

aanda6

Petty Officer 2nd Class
Joined
Jun 28, 2005
Messages
122
Re: Trim Pump Replacement

Thanks DHPMARINE, unfortunately the pumps for the 1977 are not avaliable at all. I bought a mercruiser pump off e-bay for $15, I think I will try to get some hoses made up and see how it goes.
 

TimMattson

Seaman
Joined
Nov 13, 2005
Messages
69
Re: Trim Pump Replacement

Ive worked on both and dont remember the OMC having ports for the hoses(they dont use them).I thought they use o-rings between the resevoir /pump/cylinder.I suppose you could drill and tap some after careful planning......Looking at my 3 cyl trim unit doesnt look too promising.<br /> TimM
 
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