is this water intrusion or gray colored grease ??

rentprop1

Petty Officer 1st Class
Joined
Aug 30, 2008
Messages
358
pulled the bearing protector today, on my tandem axle pontoon trailer, well the left side both bearing protectors looks like this .....

is this just a gray colored grease ?? or has water got inside these ??

the other side is a mix of this gray grease and black grease ??
when I touch it, it feels like its not a thick as most grease, almost oil like ??
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wheelinVacation09012.jpg

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wheelinVacation09016.jpg
 

rentprop1

Petty Officer 1st Class
Joined
Aug 30, 2008
Messages
358
Re: is this water intrusion or gray colored grease ??

the following pics were the reason I pulled the hub :
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wheelinVacation09017.jpg

wheelinVacation09015.jpg
 

rolmops

Vice Admiral
Joined
Feb 24, 2002
Messages
5,419
Re: is this water intrusion or gray colored grease ??

Grease comes in different colors and its structure may be thicker or thinner but it does not mix with water.So it is all good grease
Very often marine grease will have grey or greenish grey color
 

rentprop1

Petty Officer 1st Class
Joined
Aug 30, 2008
Messages
358
Re: is this water intrusion or gray colored grease ??

but it does not mix with water.

so by that statment : if there was water in there, it should have poured out and would not be mixed in with the grease ??

or would not have thinned the grease like a solvent would ??
 

bruceb58

Supreme Mariner
Joined
Mar 5, 2006
Messages
30,537
Re: is this water intrusion or gray colored grease ??

It would have an emulsified look to it. Hard to tell from pictures.

By the way, water can and does mix with grease. That is what the term emulsified means. Look at butter...it is a water and fat emulsion.
 

Bob_VT

Moderator & Unofficial iBoats Historian
Staff member
Joined
May 19, 2001
Messages
26,045
Re: is this water intrusion or gray colored grease ??

Yup it got wet and turned gray.

Take it apart, clean, re-pack, maybe a new seal...... and go boating!!
 

dgopetactical

Chief Petty Officer
Joined
Jul 3, 2007
Messages
509
Re: is this water intrusion or gray colored grease ??

Looks like water got in there to me....bet your races have rust marks on them.
Bruce is right water does mix with grease. see it all the time on heavy equipment.
Denny
 

Silver Heels

Petty Officer 2nd Class
Joined
Apr 28, 2008
Messages
125
Re: is this water intrusion or gray colored grease ??

To me it looks like gray-colored grease. Anytime I've see water intrusion, the grease was orange from rust. But, regardless, if you are not sure of the type of grease, it means you should repack with marine grade grease.
 

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,771
Re: is this water intrusion or gray colored grease ??

Grease streaks on the wheel indicates the hub cover/dust cap was leaking anyway so now is the time to fix that, disassemble the hub, clean everything up, thoroughly inspect the bearings and races, repack, add a new rear seal, reassemble, adjust the pre-load and go boating.
 
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