gimbal bearing noises??

zx9rstv

Seaman
Joined
May 18, 2011
Messages
54
Hello,
New the forum, and to boating as well. But not new to mechanical stuff.
I own a 1990 Sea Ray 280 sundancer with twin merc 5.7 litre alpha 1 gen 1 motors and outdrives. I just spent the last week working on the gimbal bearings and replacing them along with the bellows. I got the old bearings out after going several rounds with them. But they came out finally. I cleaned up the gimbal area. replaced the oil seal behind the gimbal bearing, lined up the lube hole with the housing, lubed the oustide of the new bearing, set it in the hole and began to lightly tap it into place with the bearing pusher tool. To my amazement the new gimbal bearing went right in without much whacking. I mean my wife's 90 yr old grandma coulda pushed this thing in. I then used the alignment tool and got everything set and installed a new CR outdrive I purchased from SEI. The new drive went in fairly easy and got everything bolted back up. put oil in the outdrive (bottom up), reattchaed the shift cable and started it up to check everything on the port side. I heard noise coming from the gimbal area. Not sure why.

Now on to the starboard motor. did everything exactly the way I did for the port. except It was late and I was struugling trying to figure out why the shifter on the outdrive and the shifter on the cable slider were moving in opposite directions. ( took me several hours to realize I was stupid and I was trying to install the outdrive while in reverse) Anyhow. During these couple hours I had removed the outdrive a couple times to check the shift cable position and to make sure it didnt slide out of the roller carrier. The the strange part. While removing the outdrive, 2 times the gimbal bearing came out while still attached to the yoke. I thought "huh" pulled the bearing off the yoke. proceeded to set it back in it's placed and I literally could push it back in with my fingers. SO my questions Is this. Are the bearings suppose to go in that easy? when I ordered the gimbal repair kits I ordered them for alpha 1 gen 1. I ordered them mercaftermarkets.com. Has anyone else had this happen? I hear the same noise coming from the starboard gimbal area when that engine running as well. could these bearings not be the right tolerance? any help would be appreciated.
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,096
Re: gimbal bearing noises??

While removing the outdrive, 2 times the gimbal bearing came out while still attached to the yoke. I thought "huh" pulled the bearing off the yoke. proceeded to set it back in it's placed and I literally could push it back in with my fingers. SO my questions Is this. Are the bearings suppose to go in that easy?

Nope,... That ain't right...
It's a press fit bearing...
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: gimbal bearing noises??

Check the inside of your gimbal housings where the gimbal bearing fits. Has it been damaged by a bearing spinning in it? Possibly from a previous owner that has the bearings freeze up? Or it could be the tolerance rings on your after market bearings don't fit tight like the OEM bearings.

attachment.php
 

Attachments

  • Gimbal bearing.jpg
    Gimbal bearing.jpg
    44.6 KB · Views: 0

zx9rstv

Seaman
Joined
May 18, 2011
Messages
54
Re: gimbal bearing noises??

The old bearings came out ok with a little elbow grease, I didn't notice any damage after cleaning up the area. I'm really erked about this. I bet it's the fact I used aftermarket bearings. You're probably right about them not being the same tolerances as the Merc OEM
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: gimbal bearing noises??

I bet it's the fact I used aftermarket bearings. You're probably right about them not being the same tolerances as the Merc OEM

Since the old ones were tight, then you KNOW you have a New part problem.

But look how much money you saved by not buying OEM :rolleyes: :rolleyes: :facepalm:

Can you imagine what the bellows will be like. I installed new Mallory bellows on a customers boat one time during winterization (He didn't want to spend the extra money on OEM either). The bellows were cracked and falling apart by spring, and it hadn't even been in the water yet.
 

zx9rstv

Seaman
Joined
May 18, 2011
Messages
54
Re: gimbal bearing noises??

The bellows were cracked and falling apart by spring, and it hadn't even been in the water yet.

God willing, I'll enjoy a few seasons on these bellows. :)
Hopefully mercaftermarkets will be stand up and take these gimbal rings back. i'm off to the local marine to buy 2 oem gimbals.
 

zx9rstv

Seaman
Joined
May 18, 2011
Messages
54
Re: gimbal bearing noises??

Well bought 2 new merc gimbal bearing and they pressed in just as they should. Which prvides proof positive these aftermarket bearings are crap. Now I just have to realign the engine. ugg
 
Top