Trim pump refill on 225 Opti

[skippygus73]

My trim pump is about out of oil. I can't find where to refill it out. I have the internal pump. Also what type of oil do I use? Thanks.

[EuropeanAM]

Use Mercury or Quicksilver "Power Trim and Steering Fluid".

Trim the engine "all the way up"... and place the locking mechanism in place. Bump the trim down slightly so that the engine rests against the locking mechanism.

SLOWLY, and CAREFULLY remove the fill cap from the resevoir on the port/left side of the trim system (inside the clamp brackets).

Fill with fluid "just to" the hole. Replace the plug.

That's all there is to it... if you had to add "a lot" of fluid, you might want to cycle the system up and down a couple of times, and then re-check the fluid level (start at the beginning of the directions above).

[skippygus73]

Is the plug on the lower port. I think that I have seen that plug but looked to low for a fluid fill. Also what do I use to get the fluid in there? I have a lower unit pump, will that work? I am sure that I will have to redo steps 2 and 3 for sure. She's almost empty. Thanks.

[EuropeanAM]

The plug is on the left or port side of the trim system... slightly above the "four-bolt resevoir" that sits on top of the trim unit itself.

Very low in the "resevoir"... fluid level will be at it's "lowest point" with the engine tilted all the way up.

The Merc fluid is available in a pint bottle, which has a narrow "squirt head" on top... this is really handy! Any other "clean, pumping device" can also be utilized, as long as it's supply does not completely cover the fill opening (need to be able to displace air as fluid is added).

[skippygus73]

Thanks for the help. I hope to get this taken care of tomorrow.

Skip

[skippygus73]

Well the fill plug wasn't up to the challege of getting the air out. On my last time of letting the last little bit of air out it broke off. I didn't putt that much torque on it at anytime. Enough to get it snug. So I am off to find the replacement plugs which was tough last night. Is there a stainless plug for this? One that can take some big boy torque.

[EuropeanAM]

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by skippygus73 &raquo;</TD></TR><TR><TD CLASS="quote">Well the fill plug wasn't up to the challege of getting the air out. On my last time of letting the last little bit of air out it broke off. I didn't putt that much torque on it at anytime. Enough to get it snug. So I am off to find the replacement plugs which was tough last night. Is there a stainless plug for this? One that can take some big boy torque.</TD></TR></TABLE>

No, there is not. You will want to utilize the OEM plastic plug, without a doubt. There are multiple reaons for this, including, but not necessarily limited to:

-Plastic plug will break, and/or "blow out" in the event of a severe over-pressure condition in the resevoir, potentially protecting much more expensive components of the system from failing.

-Plastic plug will break in the event of overtorquing, and is much easier to remove as it cannot damage the threads of the aluminum housing (which any metal, including aluminum, could potentially do).

-Plastic plug will be much less likely to succomb to the affects of galvanic corrosion, making it much less likely that the plug will become "seized" in it's threads.

Plastic was, and is, the way to go!

[skippygus73]

Thanks for the help. I am back on the water again. Was about to make a run out to Eric Simons to get another plug but got lucky and had one pop up way closer to where my boat is stored at.

[billproxs]

HEY DON how do you get your motor up high enough to lock motor in place if your hose with all the gas /oil/elect.. lines start getting crashed while trying to get motor up high enough.When I tryed to get my motor up that high to lock it the big tube starts to really crash down really bad.So I have to stop?

Thanks
Bill

[EuropeanAM]

You CAN remove the hood, and just inside the cowling you'll note three screws that retain the rigging tube adapter into the cowling.

If you remove the screws (and the bracket)... it may allow you to trim the engine up enough to get the support in place....

[stevechumo]

This is an old thread, but I need help with replacing the fluid. I just replaced the motor trim and the seals around the 2 cylinders. The old fluid is all greyish (probably due to the water). I pumped the new fluid in the fill plug, and the trim works. However, I'd like to take out the old contaminated fluid as much as possible. I saw a youtube video that a guy just leaves the fill plug opened, trims up and down to remove the old fluid out, then he refills it when it's up. Is that the correct way to do that?

[stevechumo]

This is an old thread, but I need help with replacing the fluid. I just replaced the motor trim and the seals around the 2 cylinders. The old fluid is all greyish (probably due to the water). I pumped the new fluid in the fill plug, and the trim works. However, I'd like to take out the old contaminated fluid as much as possible. I saw a youtube video that a guy just leaves the fill plug opened, trims up and down to remove the old fluid out, then he refills it when it's up. Is that the correct way to do that?

[STRETCH1]

I know this thread is a little older but is still valid. How much trim fluid does the motor hold? I have a 225 OPTI (Serial: OT166154)

[EuropeanAM]

Still valid: Of course.

We do ask that separate engines start their own separate post. Honestly, never measured a precise volume on these (normally end up using two quarts to have more than enough for the job when rebuilding one).