Trim Pump Not working
 

Guys,

So, we put the boat away for what turned out to be the last time in late September, and it has sat in my shop, where we store it, since. Not knowing it would be the last time, I didn't put the batteries on charge or drop the outdrive. I came in yesterday morning and had decided it was time. Crawled up into the boat, lifted the hatch, put the batteries on charge (they were fine) and hit the DOWN trim button, only to hear a click but no trim pump. Click, click, click. Nothing. Since the drive is all the way up, the UP button does nothing, but the "Trailer" button does the click thing too, with no pump. Everything was in order when we put it on the trailer last. I may or may not be able to do whatever needs done myself, or I may have to take it to Hilltop come springtime. I'll make that decision upon assessment.

All stock Merc stuff, Bravo1. So where do I start?

Thanks. Brad.

Probably a solenoid. Jump the red battery wire that goes to the dist block on the pump assy to either the green/white wire or the Blue/white wire and it should activate the motor directly to get you down....
If you want to verify then you can test the output of the solenoid with a multi meter....just put the lead on that same green or blue wire and hit the dash switch...if you get an output then solenoid is good and its probably the motor....(assuming the ground connection of the omtor is good :) )

What Wally said, those are really nothing more than old Ford style solenoids. I had one go out on Fridays Toy run, changed it before the run Saturday.

They make them a lot cheaper now, last time I had my motors out I thought I should change all 8 as a preventive since it is so much easier sitting on the bench.

First run out 5 of the 8 failed,,,,,,,,,,,:mad:

Wally, Wildman,

I'll crawn back up in there and see what I find.

Thanks. Brad.

Blue should be Up (Blue sky)
Green should be down (Green grass)

Rookie,

Noted. Thanks for the heads up.

Thanks. Brad.

Thats true if the hyd lines are connected correctly ;) :D

Definitely the solenoid. Had all 3 sticking on my boat a few months ago (trim up, down and starter). Swapped them all and everything is good now

As long as you verify it’s the solenoid that has failed, replace both of them. It’s only 3 additional nuts to remove.

If one has died, the other probably isn’t far behind. I always kept 2 on board as well.

My old 32 Fountain stuff would intermittently not trim up or down. One of them just had some corrosion on the solenoid connectors and the other had a failing solenoid. I could whack it with a screwdriver handle or something and it would work...until it didn't. Cleaned the connections on the one, replaced the other worked that way until I sold it. Worth checking the connections if you don't want to throw parts at it.

Sydways,

I'm a firm believer in this philosophy. Never change the brakes on one wheel....

Thanks. Brad.

Dave,

I'll give them a whack and see if it "fixes" it, but all that will tell me is that it is definitely time to swap them out. :ernaehrung004:

Thanks. Brad.

Yep!

If a solenoid clicks they`re usually good. Get out the old volmeter and check for power .
I also use alligator jumpers when I`m in the bilge and don`t want to crawl over the seat .. as Walley described.
These are great for a lot of things:

Usually when a solenoid only clicks, it's not getting enough voltage.

Griff,

I will crawl up there and check now that the batteries should be charged.

Thanks. Brad.

Not sure what year you have but my 1990 Bravo One trim pumps have an odd looking 110A fuse at the solenoid. I didn't realize they were fuses initially.

See item #20.
https://www.mercruiserparts.com/bam/.../30966/952/150

Way to jinx me Brad,
I was putting the hatch down yesterday, heard a click and now it`s dead. It`s all your fault

Dan,

And the funny thing is my trim pump is working fine. Low voltage was the answer.

Thanks. Brad.

Well I guess your luck is my luck... I tried again and it works , must have been a overload .. it was not happy going down with cold thick fluid.

Dan,

Take the win. :ernaehrung004:

Thanks. Brad.