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Greasing Campy hubs: update and query(12 posts)

Greasing Campy hubs: update and queryPaulCL
May 1, 2002 9:09 AM
Against the advice of several board members, but in line with Campy's own recommendations, I injected grease into the port on my rear Record hub.

No problems. Very smooth. But...the Campy 'click' while coasting is gone or rather, barely perceptible. Without the click, I just feel that I'm going faster. Probably not, but I feel faster. But why is the click gone?? What causes it anyway? Thanks. Paul
re: Greasing Campy hubs: update and querycurlybike
May 1, 2002 11:21 AM
Inthe previous thread, it was said that pumping grease into the port may cause grease to get into the ratchet area of the freehub(the clicky part). The clicky is caused by the pawls snapping over the ratchet teeth of the freehub. If there is too much grease in the ratchet area, the engagement of the pawls may be unreliable. Also, the wedge of grease under the pawls may reduce the contact face area enough to cause the ratchet teeth to break off under load.When the pawls do not engage, the pedals are free turning in both directions. Just what you want in the middle of a climb,eh? As I remember, there was a lot of ridicule cast about when it was suggested that grease should not be injected. So enjoy the quiet while it lasts, but it may become permanent and total. Remember many of us have learned that the factory is not always right, and we can't live long enough to make all the mistakes. We should learn from others.
re: Greasing Campy hubs: update and querySnowBlind
May 1, 2002 11:24 AM
I cleaned out and relubed the whole thing. See my write-up if you are interested. Did you get the second grease port under the cogs?
As for the click, mine went away as well. In fact, the drive chain is louder when pedaling! I can only assume that it is grease from the factory vrs. Perdro's that is the diff.
I am going to crack it open again soon just to be sure everything is OK...
Talked to my LBSPaulCL
May 1, 2002 11:51 AM
My LBS mechanic said that the Pedro's grease is heavier than the campy grease, hence the 'muffling' of the clicking sound. He doesn't feel that it will be problem - a slightly heavier hub maybe - but no mechanical problem. He gave me three recomendations:
1. Re-inject a lighter, Lithium, grease so as to push out the heavier stuff
2. He gave me CampyUSA's tech line to ask. I left a message. I'll post the response.
3. Don't worry about it. Go ride.

I've always heard that you shouldn't mix different greases -- ifbill
May 1, 2002 1:53 PM
you are going to change, clean out the old; that mixing greases causes breakdown.
FWIW, I cleaned out my rear hub (Nucleons -- they use Record hubs, don't they?), put in Phil Wood (which is heavy, gooky stuff), basically cleaned it away from the pawls, and it's a lot quieter, but fine.
No, didn't see the injection port under the cogs. I wondered about that.
Good pointPaulCL
May 1, 2002 3:38 PM
I also called another LBS and asked the same question. His first response was that you shouldn't ever bother to inject grease into that port. Not that it's going to hurt anything, just rebuild it if necessary. His recommendation (even after I offered to bring it in for a rebuild) was to leave it alone.

But, if I sense any problems at all, to get off the bike and rebuild the hubs. In his opinion, if there was going to be a problem from this, I would have noticed it right away which I did not.

I'll still post whatever the Campy rep tells me. Since I'm doing two centuries in a row May 11-12, maybe I'll just open up the hubs, clean them, then regrease. I guess I'll wait for Campy to return my call. Paul
re: Greasing Campy hubs: update and queryjimijoe
May 2, 2002 9:10 AM
Thanks for the info. Where is your write up? Probably further down on the discussion page and I find it as soon as respond to this and scrool down. LOL. On thing I am not sure of is how to inject the grease into the port. Is a speical tool needed??

re: Greasing Campy hubs: update and queryjimijoe
May 2, 2002 9:23 AM
OK I found the write up. BTW nice job Snowblind. I printed a copy to put with my service manuals....

I talked to CampyUSAPaulCL
May 2, 2002 11:52 AM
I talked to a tech. Hopefully, the final word.

He said: I'm fine. No big deal. I probably put too much grease into the hub. Unless I used very heavy (non-cycling) grease, there is no problem. He did say that if it was HIS hub, he would eventually take the hub apart and clean out that excess grease. But there is no rush to do it. He said that my excess grease will seep out when the temperature goes up - a mess over my spokes, hub, cogs, etc... I told him of a double century coming up next week that often has rain. In response to this, he said that my extra grease with not allow water into the hub, so hold off any re-build (if I so choose) until after the ride.

Another thing...PaulCL
May 2, 2002 11:55 AM
He referred to the port as the "oil hole"

So ignore the Campy directions and ignore the port. Go figure?
Another thing...SnowBlind
May 2, 2002 2:00 PM
If you really over-packed, you will see the stuff come out on the next couple of rides. It will ooze right out of the small gap between the non drive side lockring and the flange of the hub. Gross, but harmless. It does the same thing on the drive side, but you generally don't see it as the cogs hide the spot it comes out of hub.
Grease turns to oil pretty quickly once the hub is rotating, and so the excess just flows right out.
Really truely we should be putting 90w rear axel oil into these things, BUT, it is a royal pain. Oil will flush the smallest contaminates right out, as well as any water. Grease is a compromise because you don't have to do it every 150 miles or weekly. Doing this is annoying, and the hubs are constantly oily as the "flushing" occurs. But the hubs will last longer and ride smoother.
Oh well, life is a compromise, so I use grease.
I wish Campy hadgrandemamou
May 4, 2002 6:01 AM
left the holes off. Almost started WWIII over this. I was debating on what to do also. I guess I'll break them down and do it the old fashioned way. Thanks for following up with Campy.