dconradcopelande
14.05.2021 4:37:36
Mercruiser has updated trim pump designs over the years.
It is important to match your pump with your cylinder style. more
See full version: Tilt and trim pump pre alpha 1 wiring
Mercruiser has updated trim pump designs over the years.
It is important to match your pump with your cylinder style. more
Power Trim Pumps more
Older pumps (Prestolite) that have the square reservoirs and cylindrical motors are no longer sold.
These older units were High Pressure-Low Volume pumps.
Mercruiser now has replacement High Pressure-Low Volume pumps (see below).
This "adaptor" pump looks just like the new style Oildyne pump.
They used the smaller diameter hydraulic trim cylinders.
(pre-Alpha and "R"-drives) here
What type of oil? These units all use standard 10-40WT Motor Oil. more
Why not use a set of trailering clips to hold it in place?<br />>>Oops, someone hit Post just before I did.<br />>>Great minds think alike.
How long is a "long" period of time? Mine is a 69 Merc 160 6 cyl GM and it takes 19 seconds to go from fully up to fully down. Only 11 seconds to go from down to up. I don't know if this is normal or not but it works very nice and smoothly so I'm not gonna worry about it at the moment. How does it act going the other direction?<br />I've enjoyed the challenge of my older boat this spring. I got my best compliment the other day when a Dept of Conservation guy made the comment "Hey, cool old boat" at the marina. Just the reaction I was lookin for.
Re: Pre Alpha Mercruiser Outdrive Tilt and trim more
It's not the time it takes to manually power up and power down. It's when you turn the boat off after lifting the outdrive. You can walk away, come back later and the outdrive is lowered all the way. Seller says, outdrive up and down is quick but it won't stay up over the course of 3 hours(during trailering). <br />Thanks,<br />Joe in Ohio more
Re: Pre Alpha Mercruiser Outdrive Tilt and trim
Re: Pre Alpha Mercruiser Outdrive Tilt and trim here
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Manifold diagrams parts catalog. Mercruiser bravo one trim cylinders and hydraulic hoses parts. 1968 1983 pre alpha 1 internal line. more
Shop top brands like mercruiser sierra volvo. Mercruiser alpha one and gen 2 exploded view outdrive drawings.