TRS Gimbal Dissasembly Q's
 

Hi All,

I've got the bellhousing and all the bellows off, I need to replace both (port/strbd) lower gimbal bearings. Lower pin cotter is removed. Is there a trick to removing the lower pin? There is a screwdriver slot in the bottom but I see no references to it being threaded.

I am using a bit of heat and PB Blaster. Any thoughts?

When reassembling, is the more available equivalent to the Mercruiser bellows glue?

This may be a stretch, but is there a cross reference to industry standard lower swivel bearings and seals? The Merc stuff is $$ for little parts!

Many thanks for all y'alls help, Randy

A bit more heat and PB blaster and I got one of them out and the other one moving. Still the second two questions I have though!

Working now on removing the old P/S setup. Pretty Rube Goldberg esque!!

Thanks, Randy

Yes you can get the bearings through an industrial supply. I have a friend who owns an Electric Motor Supply and Service facility, and thats were I buy all mine. If you have any trouble, let me know. I can get them for you. Also, if your have dropped, you will want to inspect your upper bearings/ steering pins/ steering arms. If you need to replace the pins and the arms, that's where the big money is at.

Thanks, I couldn't imagine Mercury tooled up anything unique, I'll let you know if I hit a wall finding a bearing locally.

How (not)important is a loose steering arm if I am moving to external steering?

Thanks, Randy

If you are going external it is not important at all. If you want to you can remove the arm.

Audio, removing the arm is a no-no. You can cut off most of it, or make a spacer to replace it but the nut on top of the arm + the arm thickness + the washer below the arm is what carries the weight and sets the height of the gimbal ring in the transom housing.

Make sense?

thread on upper pin - for slide hammer puller
 

Thanks for all the info. One last upper pin to go. Does anyone know the internal thread size in the bottom of the upper pin? According to the manual there is a special adapter for a slide hammer and I need to rig something up similar. Square pin style.

Thanks, Rand

You know I never thought of that and I have never done it myself but I have seen a few boats with out the arms in them..... Good to know however thanks!

Konrad makes a nifty little spacer for their own drives but it works just great on the TRS too.

Good info thanks. I think I'll cut one of the arms down a bit and use the other for a drive angle gauge. I'll have 8 turns LTL and I plan on losing track around the dock.

I got both gimbal rings and the bearings are SHOT, non-existent really. Kind of a poor design and choice of materials, IMHO.

Have a great holiday season.

So for the lower swivel pin, can you hit it from the bottom up? I have some slop in mine I would like to fix.

Is this the part number I need? Swivel pin - 17-54052T 1

Is there a bearing that is around the pin? Anyone have that part number, or where to get it?

thanks,

jon

Yes that should be the correct number for the pin. Yes there is a bearing (31-54928) and seals on each end of it (26-54927).
Here is a place you can get them.
http://www.perfprotech.com/store/ass...ER,986-20.aspx

Mine came out easier from the bottom up, but I think it's just luck, there is no step/taper or anything. Soak it with PB blaster.

There is a full-complement needle roller bearing pressed into the gimbal ring with an oil seal on either side of it.

http://www.mercruiserparts.com/

Good luck with it. Randy

Was going to ask a few other questions, but after waking up and going out back, I was able to pound it out.

Thought I could get to the needle bearing without pulling the gimbal ring, but I guess I now need to remove the top pin so I can get to that bearing.