Shimano FH6600 Freehub Body
09-19-23, 07:46 AM
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Shimano FH6600 Freehub Body
First, thank you to all of you for providing your knowledge to help me with my question.
I need to replace my freehub body FH6600. I was able to find a brand new one. Obviously it is older stock, but still in the original packaging. My question is, do I or should I re-lube it? If so, what is the best way to do this? Should I disassemble the entire freehub body including the bearings? It appears I would need a special socket to be able to reach the bearings? If all of this needs to done or is recommended, what grease and lube should I use?
I really appreciate everyone's help.
Ryan Lohr
I need to replace my freehub body FH6600. I was able to find a brand new one. Obviously it is older stock, but still in the original packaging. My question is, do I or should I re-lube it? If so, what is the best way to do this? Should I disassemble the entire freehub body including the bearings? It appears I would need a special socket to be able to reach the bearings? If all of this needs to done or is recommended, what grease and lube should I use?
I really appreciate everyone's help.
Ryan Lohr
09-19-23, 07:57 AM
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I would leave it as is. Give it a good spin and if it rotates freely and doesn't sound dry, you should be good to go. I just recently bought a NOS 6700 body and it works like it was manufactured yesterday. The factory lube lasts longer than any other types I've tried when I have to do the initial flush and lube on a Shimano body usually after 20K miles or so. Video on easy way to flush/lube a Freehub body when needed a few years from now.
Last edited by Crankycrank; 09-19-23 at 08:03 AM.
09-19-23, 07:59 AM
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There have been many threads here on freehub maintenance, just replied to one a day ago...
The easiest way to lube a FH body is to drip oil (I like a medium thick type like Phil's) through it. Since the FH body is already off the hub shell this is even easier. I place the FH body on a paper towel with one end up. Drip some oil between the inner and outer cores. When the oil has completely traveled through the FH body the paper towel will soak up the new/old lube mix that flows out.
Bicycle free hubs/wheels which use loose balls (can you say Shimano) don't need grease and are often made worse if grease were to migrate into the pawls. They also are some what "sloppy" in their bearing adjustment which allows more flow through of the fresh lube. If the FH body was used I would repeat the lube drip in and flow out till the flow out looked pretty clean of grime.
When you reassemble the FH body back on the shell do grease the interface and threading. Andy
The easiest way to lube a FH body is to drip oil (I like a medium thick type like Phil's) through it. Since the FH body is already off the hub shell this is even easier. I place the FH body on a paper towel with one end up. Drip some oil between the inner and outer cores. When the oil has completely traveled through the FH body the paper towel will soak up the new/old lube mix that flows out.
Bicycle free hubs/wheels which use loose balls (can you say Shimano) don't need grease and are often made worse if grease were to migrate into the pawls. They also are some what "sloppy" in their bearing adjustment which allows more flow through of the fresh lube. If the FH body was used I would repeat the lube drip in and flow out till the flow out looked pretty clean of grime.
When you reassemble the FH body back on the shell do grease the interface and threading. Andy
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09-19-23, 01:30 PM
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Thank you for the information. It does spin smoothly. I also appreciate the video. I did watch this video prior when I was hoping I could just "clean it."
I appreciate your time!
I appreciate your time!
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