normal amount of floating or worn caliper

[dpotter58]

I am looking at the front calipers on my specials and I see a considerable difference in the amount of lateral movement from hard to move, to being able to slide very freely. I understand that they are floating calipers and should move but I don't know if the one that moves very easily is worn out. So, the question is, how easy should it be to make them slide on the pin?

[Geezer]

Light finger pressure should be all that is needed to move the caliper if it's not in contact with the disk.

Geezer

[dpotter58]

So the one I thought was worn is probably the good one.

[Ken Talbot]

The good things is the pins are pretty easy to clean. Take it all apart and buff it up with a bit of fine sandpaper. Lube it with silicone disc brake lubricant, put it all back together, than climb back on and ride.

[dpotter58]

Thanks Ken, Ill do that. I wasn't certain of what to lube it with.

[dpotter58]

How important are the dust boots that I appear to be missing on the pin ? I found a post referencing buying hew boots at PNM but don't see thm.

[TopCatGr58]

Here's what you're looking for!

79XS650 front boot: 1J3-25917-00-00 BUSHING, BOOT

79XS11 front boot: 1J3-25917-00-00 BUSHING, BOOT

MikesXS has them for the 650, same part # as the XS11!!

Rubber caliper sleeve Boot
Rubber caliper sleeve Boot. - Boot allows caliper to float on mounting bolt sleeve.
Once this rubber age hardens the caliper will not float and it should be replaced
or brakes will drag or squeel. Polish the sleeve and install Boot to restore correct
caliper float. Caliper Boot Fits: 1977-84 XS650 Calipers.


Part #29-0017 $9.00 USD EA.

T.C.

[dpotter58]

Re: Here's what you're looking for!

Originally posted by TopCatGr58
79XS650 front boot: 1J3-25917-00-00 BUSHING, BOOT

79XS11 front boot: 1J3-25917-00-00 BUSHING, BOOT

MikesXS has them for the 650, same part # as the XS11!!

T.C.

Mine is a 1981 LH. PN is the same except the suffix. I have seen a post about PNs interchanging. How does that go? First part is the bike model number....

[TopCatGr58]

Sorry there Potter,

The "PREFIX" is different, and that does make it a different part! The XJ and LH are the same, but they are still no longer in production! PNM doesn't have them, BikeBandit doesn't have them! You may have to fabricate your own out of some "OTHER" rubber bushing type part!? Just one of the reasons why not to own an 81 MNS !

Good Luck!
T.C.