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Intermediate bearing greasing advice

husbus

Member
Messages
18
Reaction score
12
Points
22
Location
TN
Boat Make
Yamaha
Year
2020
Boat Model
212X
Boat Length
21
Per the service records of this new-to-me 2020 212X, the intermediate bearings weren't greased during the 10-hour service, or any time after. I see that a lot of people like adding the grease directly into the bearing housing, but I have no visual on the fitting due to the electronic box being in the way, and it's a long reach anyway, so I'm thinking I'll just grease through the hose per official instructions. It'd be great to at least know whether the hose contains any grease currently. Is that hose held on by a zip tie, or is it supposed to unlock somehow to come off?
 
I cut the ziptie off of my 195 and then pumped all the old grease out of the tube. Once fresh grease started coming out, I reattached and gave it some pumps. Then remove the from the fitting and press on the tiny ball to make sure it isn't under extreme pressure.
 
I cut the ziptie off of my 195 and then pumped all the old grease out of the tube. Once fresh grease started coming out, I reattached and gave it some pumps. Then remove the from the fitting and press on the tiny ball to make sure it isn't under extreme pressure.
Thanks, will give that a try!
 
Check out this thread.
@Cobra Jet Steering LLC recommends just adding gear oil instead of grease.
 
I have found it you over grease it, it will blow grease hose off before it blows seal out. At least mine did. You only need a few pumps of grease. Maybe 3 and should be good.
 
I cut the ziptie off of my 195 and then pumped all the old grease out of the tube. Once fresh grease started coming out, I reattached and gave it some pumps. Then remove the from the fitting and press on the tiny ball to make sure it isn't under extreme pressure.
So you remove the hose that is hard to reach at the bottom and press a little ball in the fitting? I haven’t done this either and was wondering the best way? Thanks in advance
 
So you remove the hose that is hard to reach at the bottom and press a little ball in the fitting? I haven’t done this either and was wondering the best way? Thanks in advance
Yes. Remove hose at the lower attachment point at the housing. You're just pumping the grease out of the long tube that's been sitting for a while. The ball is at the top where your grease gun attaches. If you pump too much, the hose will be under pressure and pressing that ball will release some.
 
You can make up something like this to help you reach those hard to reach places in your engine bay.

I like what @steveinmd says about removing the hose at the intermediate bearing and pumping out all the old grease until fresh grease comes out.

I’d suggest that once you have removed the house / tubing from the bearing, use a bright light and a piece of line trimmer / weed wacker line to stick down inside the bearing to see just how much grease is in the bearing before adding any grease.

My boat did not come with the remote greasing location so I apply grease at the zerk fitting (where your grease gun attaches and has the little check valve) that is screwed into the bearing housing. My manual was specific about the amount of grease to be added to each intermediate bearing in CC’s at the 10 hour and subsequent 100 hour intervals so I attached my grease gun to a 60 CC irrigation syringe I got off of amazon to see just how many CC’s my grease gun put out per pump then added that amount to each housing, then checked the amount of grease using the piece of line trimmer line mentioned above.

As important as not over greasing initially is leaving room for the grease to expand as it gets hot. It sounds like the remote greasing hose gives a place for expansion but pressing the ball check valve down is a good idea to release excess pressure.

It’s a bit of a pita to get it figured out the first time but there after it will be routine.
 
You can make up something like this to help you reach those hard to reach places in your engine bay.

I like what @steveinmd says about removing the hose at the intermediate bearing and pumping out all the old grease until fresh grease comes out.

I’d suggest that once you have removed the house / tubing from the bearing, use a bright light and a piece of line trimmer / weed wacker line to stick down inside the bearing to see just how much grease is in the bearing before adding any grease.

My boat did not come with the remote greasing location so I apply grease at the zerk fitting (where your grease gun attaches and has the little check valve) that is screwed into the bearing housing. My manual was specific about the amount of grease to be added to each intermediate bearing in CC’s at the 10 hour and subsequent 100 hour intervals so I attached my grease gun to a 60 CC irrigation syringe I got off of amazon to see just how many CC’s my grease gun put out per pump then added that amount to each housing, then checked the amount of grease using the piece of line trimmer line mentioned above.

As important as not over greasing initially is leaving room for the grease to expand as it gets hot. It sounds like the remote greasing hose gives a place for expansion but pressing the ball check valve down is a good idea to release excess pressure.

It’s a bit of a pita to get it figured out the first time but there after it will be routine.

Can You post a link of the this again of the build? I'm not seeing a link to what you made. Thanks.
 
Can You post a link of the this again of the build? I'm not seeing a link to what you made. Thanks.
There you go…


 
I have found it you over grease it, it will blow grease hose off before it blows seal out. At least mine did. You only need a few pumps of grease. Maybe 3 and should be good.
Here is a picture of one that was over greased, 1743424077320.jpeg also keep in mind that around 2012 they stopped adding a hose and just put a grease fitting on the housing and when you add gear lube you liquify the grease so it can lube the seals more efficiently and flow back to the center unlike grease that can collect away from the center over time . I do this before it hits the water for the very first time but it's your boat so do what ever makes you happy.
 
Last edited:
So you remove the hose that is hard to reach at the bottom and press a little ball in the fitting? I haven’t done this either and was wondering the best way? Thanks in advance
If your bearing has a hose there is no grease fitting on the housing just a hose barb the fitting is on the end of the hose so you just remove that fitting add the gear lube to the end of the hose and put it back in the hose when you are finished.
 
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