Slow trim response

[marc5959]

Does anyone know why my outdrive, Alpha One, is so slow coming up but goes down quickly, normally ? Like 5 times longer coming up than down?

 

[Bondo]

Ayuh,.... Is it full of oil,..??
Which trim pump ya got,..?? there's been several over the years,...

 

[dubs283]

Guessing you're referring to the trim/tilt system?

If so, then there is an issue with the system, most likely electrical. Unless you see extremely low oil/leaks or massive corrosion externally my guess is an electrical connection issue at least

 

[tpenfield]

My guesses are:

Slow to come up . . .
Hydraulic fluid (oil) is low or has water in it.

Quick to go down . . .
Gravity is in your favor.

 

[marc5959]

Ayuh,.... Is it full of oil,..??
Which trim pump ya got,..?? there's been several over the years,...

How do I know which trim pump I have, numbers to look for? assuming it came with boat, 1997 Maxum SR2, Alpha One?? but you know what you get into when you assume stuff, ha ha

 

[ddrieck]

How do I know which trim pump I have, numbers to look for? assuming it came with boat, 1997 Maxum SR2, Alpha One?? but you know what you get into when you assume stuff, ha ha

Mainly does the trim pump have a plastic reservoir or is it solid aluminum?
Mine is all aluminum and I had a leaking hose running to one of the ram cylinders after hooking it with a #12 circle hook. Lost most of the oil that weekend and was acting the same as you have described. Replaced the hoses and refilled the pump. Had to check and add more oil several times before all the air was pushed out. Small plug is removable with a regular screwdriver. The plastic ones have a cap you can just screw off to check and add more oil

 

[marc5959]

How do I know which trim pump I have, numbers to look for? assuming it came with boat, 1997 Maxum SR2, Alpha One?? but you know what you get into when you assume stuff, ha ha

Mainly does the trim pump have a plastic reservoir or is it solid aluminum?
Mine is all aluminum and I had a leaking hose running to one of the ram cylinders after hooking it with a #12 circle hook. Lost most of the oil that weekend and was acting the same as you have described. Replaced the hoses and refilled the pump. Had to check and add more oil several times before all the air was pushed out. Small plug is removable with a regular screwdriver. The plastic ones have a cap you can just screw off to check and add more oil

It is a plastic reservoir, I couldn't see a full line the first time I looked at it, took the cap off and looked but without knowing where level should be I did not add any, doesn't seem to be leaking anywhere, motor for the pump sounds the same going up or down, It does comes up which is the most important thing, guess maybe I need to drain completely and refill, make sure no water or air in the lines, see if that fixes the problem.

 

[tpenfield]

Post a picture of the pump and as best you can the oil level in the plastic reservoir.

 

[palumanic]

This discrepancy in speed is typically caused by a difference in hydraulic pressure during the raising and lowering processes. The downward movement benefits from gravity, allowing it to be quicker, while the upward movement relies solely on hydraulic pressure, resulting in a slower pace. If you want to improve the upward speed, you can consider checking the hydraulic system for any potential issues, such as low fluid levels or a faulty pump.

 

[marc5959]

Post a picture of the pump and as best you can the oil level in the plastic reservoir.

I will attempt that, thanks

 

[04fxdwgi25]

Plus the volume of oil needed to go up is less than down, due to the cyl rod being in only 1 end of the cyl.

If you over fill the tank while drive is down, it will over flow at full up.

 

[Scott Danforth]

plastic pump is the oildyne

level is about 3/4" from the top

 

[tank1949]

Does anyone know why my outdrive, Alpha One, is so slow coming up but goes down quickly, normally ? Like 5 times longer coming up than down?

as others have mentioned, many possibilities to verify. In addition, if an older and saltwater used boat, rams may need rebuilding. Easy to perform but time consuming. Always check fluids and electrical connections first, including solenoids. If fluid is milky, water is getting into system and usually through ram seals (not always).

 

[marc5959]

plastic pump is the oildyne

level is about 3/4" from the top

Thanks for the info.

 

[marc5959]

Should always be checked with the unit lowered completely??

 

[Scott Danforth]

Should always be checked with the unit lowered completely??

YES

 

[marc5959]

I will attempt that, thanks

I checked the level of trim fluid while completely lowered and level was aprox 3/4" below the top of the neck where the cap screws on and is perfectly clear, no sign of water contamination, don't think I'm gonna worry too much about it anymore, doesn't make any unusual noise, just a lot slower coming up than down?

 

[tpenfield]

One thing to check is if you raise the outdrive about half way . . . maybe a bit more. See if it will stay there for several days. If it slowly lowers, you may have a problem with the valves in the pump.

 

[Scott Danforth]

One thing to check is if you raise the outdrive about half way . . . maybe a bit more. See if it will stay there for several days. If it slowly lowers, you may have a problem with the valves in the pump.

or seals in the cylinders

 

[marc5959]

One thing to check is if you raise the outdrive about half way . . . maybe a bit more. See if it will stay there for several days. If it slowly lowers, you may have a problem with the valves in the pump.

No Mr. Tpenfield, I keep it at almost all the way up, according to the trim guage? on the dash, for transporting purposes, ground clearance, and it does not leak down at all.