Campy Freehub Replacement - any issue with the new pawls in old hub body?

While performing a long overdue check-up, I noticed that my 2000 era
Campy Chorus freehub was cracked (worn chain, led to the replacement
of cassette, led to discovery of significant cracks in the freehub).
Apparently this is a common problem with the 2000-2006 freehub design
on the mid to upper end Campy offerings. After reading everything I
could find on the net, I decided to buy a new Record hub and
transplant the new hub innards (most everything except the hub body,
cups, and inner washer/seal) to the old hub body.

The pawls on the new freehub have a different part number than the on
the old style. Is there any known issue with the new freehub/pawl
system working with the old hub body (including cups and engagement
teeth)?

Here's the reason for my concern.... I made several mistakes when
reassembling the new hub parts in my old wheel / hub body, including:
a failure to engage the bearing dust seals in the cups, and an
application of heavy grease on the freehub pawls. My initial QA tests
detected that the freehub pawls randomly engaged while coasting.
Fortunately, I detected this issue while doing test runs on my
driveway rather than coming down Old San Jose Road in a 40 mph tuck.

After diagnosing the problem and fixing the seal and grease problems,
the freehub seems to work fine. I even survived a few fast descents.
But, I'm still a little afraid that there might be another underlying
problem with this combination. However, it sounds as if many people
have tired some version of my upgrade (e.g. at least using the new
axle-freehub combo).

Op 15-2-2011 18:46, Geoff Rilling schreef:
While performing a long overdue check-up, I noticed that my 2000 era
Campy Chorus freehub was cracked (worn chain, led to the replacement
of cassette, led to discovery of significant cracks in the freehub).
Apparently this is a common problem with the 2000-2006 freehub design
on the mid to upper end Campy offerings. After reading everything I
could find on the net, I decided to buy a new Record hub and
transplant the new hub innards (most everything except the hub body,
cups, and inner washer/seal) to the old hub body.

The pawls on the new freehub have a different part number than the on
the old style. Is there any known issue with the new freehub/pawl
system working with the old hub body (including cups and engagement
teeth)?

Here's the reason for my concern.... I made several mistakes when
reassembling the new hub parts in my old wheel / hub body, including:
a failure to engage the bearing dust seals in the cups, and an
application of heavy grease on the freehub pawls. My initial QA tests
detected that the freehub pawls randomly engaged while coasting.
Fortunately, I detected this issue while doing test runs on my
driveway rather than coming down Old San Jose Road in a 40 mph tuck.

After diagnosing the problem and fixing the seal and grease problems,
the freehub seems to work fine. I even survived a few fast descents.
But, I'm still a little afraid that there might be another underlying
problem with this combination. However, it sounds as if many people
have tired some version of my upgrade (e.g. at least using the new
axle-freehub combo).


I just replaced my 2003 Record freehub body with a new one (bearings
were shot) on one of my wheels. I kept all the other innards. Didn't
look at the partnumbers. A five minutes job. No problem. Don't put
grease on the pawls. Don't use the grease port to repack the bearings.
It gets messy. Take it apart.

https://picasaweb.google.com/LoetjeH...aafDoorsmeren#

Lou

Geoff Rilling wrote:
While performing a long overdue check-up, I noticed that my 2000 era
Campy Chorus freehub was cracked (worn chain, led to the replacement
of cassette, led to discovery of significant cracks in the freehub).
Apparently this is a common problem with the 2000-2006 freehub design
on the mid to upper end Campy offerings. After reading everything I
could find on the net, I decided to buy a new Record hub and
transplant the new hub innards (most everything except the hub body,
cups, and inner washer/seal) to the old hub body.

The pawls on the new freehub have a different part number than the on
the old style. Is there any known issue with the new freehub/pawl
system working with the old hub body (including cups and engagement
teeth)?

Here's the reason for my concern.... I made several mistakes when
reassembling the new hub parts in my old wheel / hub body, including:
a failure to engage the bearing dust seals in the cups, and an
application of heavy grease on the freehub pawls. My initial QA tests
detected that the freehub pawls randomly engaged while coasting.
Fortunately, I detected this issue while doing test runs on my
driveway rather than coming down Old San Jose Road in a 40 mph tuck.

After diagnosing the problem and fixing the seal and grease problems,
the freehub seems to work fine. I even survived a few fast descents.
But, I'm still a little afraid that there might be another underlying
problem with this combination. However, it sounds as if many people
have tired some version of my upgrade (e.g. at least using the new
axle-freehub combo).

You're right that the current body requires the current axle
with 3-sided interface so they must go in as a set. Aside
from excessive grease being a problem with this or any pawl
assembly you should be good to go. The bearing adjustment is
easy to overtighten. Campagnolo suggests final adjust in the
bike, skewer closed; tighten just until the play is gone and
lock it in place.

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971

On Feb 15, 3:47*pm, Lou Holtman wrote:
Op 15-2-2011 18:46, Geoff Rilling schreef:



While performing a long overdue check-up, I noticed that my 2000 era
Campy Chorus freehub was cracked (worn chain, led to the replacement
of cassette, led to discovery of significant cracks in the freehub).
Apparently this is a common problem with the 2000-2006 freehub design
on the mid to upper end Campy offerings. *After reading everything I
could find on the net, I decided to buy a new Record hub and
transplant the new hub innards (most everything except the hub body,
cups, and inner washer/seal) to the old hub body.

The pawls on the new freehub have a different part number than the on
the old style. *Is there any known issue with the new freehub/pawl
system working with the old hub body (including cups and engagement
teeth)?

Here's the reason for my concern.... *I made several mistakes when
reassembling the new hub parts in my old wheel / hub body, including:
a failure to engage the bearing dust seals in the cups, and an
application of heavy grease on the freehub pawls. *My initial QA tests
detected that the freehub pawls randomly engaged while coasting.
Fortunately, I detected this issue while doing test runs on my
driveway rather than coming down Old San Jose Road in a 40 mph tuck.

After diagnosing the problem and fixing the seal and grease problems,
the freehub seems to work fine. *I even survived a few fast descents.
But, I'm still a little afraid that there might be another underlying
problem with this combination. *However, it sounds as if many people
have tired some version of my upgrade (e.g. at least using the new
axle-freehub combo).

I just replaced my 2003 Record freehub body with a new one (bearings
were shot) on one of my wheels. I kept all the other innards. Didn't
look at the partnumbers. A five minutes job. No problem. Don't put
grease on the pawls. Don't use the grease port to repack the bearings.
It gets messy. Take it apart.

https://picasaweb.google.com/LoetjeH...aafDoorsmeren#

Lou

Dear me, you know those bearings in the freehub are replaceable..

Op 19-2-2011 14:06, Qui si parla Campagnolo schreef:
On Feb 15, 3:47 pm, Lou wrote:
Op 15-2-2011 18:46, Geoff Rilling schreef:



While performing a long overdue check-up, I noticed that my 2000 era
Campy Chorus freehub was cracked (worn chain, led to the replacement
of cassette, led to discovery of significant cracks in the freehub).
Apparently this is a common problem with the 2000-2006 freehub design
on the mid to upper end Campy offerings. After reading everything I
could find on the net, I decided to buy a new Record hub and
transplant the new hub innards (most everything except the hub body,
cups, and inner washer/seal) to the old hub body.

The pawls on the new freehub have a different part number than the on
the old style. Is there any known issue with the new freehub/pawl
system working with the old hub body (including cups and engagement
teeth)?

Here's the reason for my concern.... I made several mistakes when
reassembling the new hub parts in my old wheel / hub body, including:
a failure to engage the bearing dust seals in the cups, and an
application of heavy grease on the freehub pawls. My initial QA tests
detected that the freehub pawls randomly engaged while coasting.
Fortunately, I detected this issue while doing test runs on my
driveway rather than coming down Old San Jose Road in a 40 mph tuck.

After diagnosing the problem and fixing the seal and grease problems,
the freehub seems to work fine. I even survived a few fast descents.
But, I'm still a little afraid that there might be another underlying
problem with this combination. However, it sounds as if many people
have tired some version of my upgrade (e.g. at least using the new
axle-freehub combo).

I just replaced my 2003 Record freehub body with a new one (bearings
were shot) on one of my wheels. I kept all the other innards. Didn't
look at the partnumbers. A five minutes job. No problem. Don't put
grease on the pawls. Don't use the grease port to repack the bearings.
It gets messy. Take it apart.

https://picasaweb.google.com/LoetjeH...aafDoorsmeren#

Lou

Dear me, you know those bearings in the freehub are replaceable..


I know Peter and I did that once. It was a real PIA and I think Campy
doesn't want you to replace the bearings in the body. The two ball
bearings cost me 22 euro's then and I have the impression that they wore
out faster than the original ones. A whole new body cost me now 50
euro's. The 28 euro extra saved me one hour work and a lot of bad
language. Good deal ;-)

Lou YMMV