Reply
 
Thread Tools Search this Thread Display Modes
 
Old 04-05-2014, 02:38 AM   #1
Lt. Commander

 
Join Date: Feb 2010
Location: Half Moon Bay, CA
Posts: 170
Default Repairing Trim Tab leak

OK so Tom (Tabman) from Bennett Marine was kind enough to send me a replacement upper hinge and brass fitting to fix my trim tab leak. I'd like to do that but I want to be crystal clear on what is required.

The hydraulic line is black nylon, and passes through the transom to the cylinder. I can't see the brass connection from either side so it must be hidden in the hole through the transom. Once I remove the black upper hinge from the transom (3 screws), I'm sure I'll see it.

Here's what I'm not sure of:

Will I have to dig out sealant in the hole through the transom? Or will the hydraulic line and connector just slide through?

How do I remove the old brass fitting from the nylon line and replace it with the new one? Is it some sort of compression fitting? So maybe I just unscrew the old fitting and the line just slips free? I can't tell.

Once I've connected up everything, how to I seal it properly so I don't end up at the bottom of the Pacific Ocean? 4200? 5200?

Help!
__________________

__________________
2006 Maxum 2600SE with Mercruiser 5.0L MPI and BIII Drive
iceman is offline   Reply With Quote
Old 04-05-2014, 10:07 AM   #2
Admiral
 
mmwjr's Avatar
 
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 8,269
Default

The top of the cylinder should be above the water line so but should have either a gasket or sealant.

Don't know about the fitting can you tell by looking at the new one? I am sure Tabman will answer this.

If above the water line then 4200 f sealant is required, once again Tabman can better answer this.
__________________

__________________
1997 2400 SCR
5.7 Vortec / Bravo 2
Mike
mmwjr is offline   Reply With Quote
Old 04-06-2014, 08:43 PM   #3
Ensign
 
Join Date: Mar 2014
Posts: 14
Default

You should be able to take the upper hinge off the transom without digging out the caulk, depending on what was used (i.e. 5200) it may take some work. Once it is off you can them dig out the old caulk to clean up the hole in preparation for resealing.

Hopefully you have enough extra tubing so you can cut the old compression fitting off and use the new one we sent you. Sometimes it helps to take the tubing off the pump so you can pull a bit out the hole in the transom to work on it.

Then insert tubing through the nut with ferrule. Push until it bottoms in the fitting. While continuing to bottom the tubing in the fitting, tighten
nut “finger tight,” then one full turn with a 1/2" wrench, no more, while holding the fitting with a 7/16" wrench to prevent it stripping in the upper hinge.

I like 5200 for sealing the actuator to the transom when attaching it.

I hope this helps,

Tom
Bennett Marine
Tabman is offline   Reply With Quote
Old 04-07-2014, 12:34 AM   #4
Lt. Commander

 
Join Date: Feb 2010
Location: Half Moon Bay, CA
Posts: 170
Default

OK Thanks Tom, that all makes sense. Hopefully the old upper hinge will come off easily. It looks like it's been caulked around the edge, as though someone was trying to stop a leak. The other trim tab hinge has a very clean look, no exposed caulk or sealer.

One last thing: If I use 5200, will that make it harder to remove in the future? I assume I'm applying the sealer to the mating surface of the upper hinge, where it meets the transom.
__________________
2006 Maxum 2600SE with Mercruiser 5.0L MPI and BIII Drive
iceman is offline   Reply With Quote
Old 04-07-2014, 01:30 AM   #5
Ensign
 
Join Date: Mar 2014
Posts: 14
Default

Yes, 5200 will make it harder to remove in the future. You can use 4200 which is easier to take apart.

Tom
Bennett Marine
Tabman is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Powered by vBadvanced CMPS v3.2.3

All times are GMT. The time now is 12:08 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2020, vBulletin Solutions, Inc.