CB750 Caliper rattle

[Lobo]

Thanks OddJob... will pm you. These darn washers getting a bit rare it seems....

[Seamus]

can you not measure the float with a feeler gauge and buy a bit of shim stock to make one?

[Lobo]

Hi Seamus.... guess that's a 'Plan B' as I'm happy to spend £3 on the washers if I can get them.

[Lobo]

Thanks OddJob...fingers crossed.

[Bob Wessner]

can you not measure the float with a feeler gauge and buy a bit of shim stock to make one?

My first post here. It took me some time to isolate the clunk, but once I had decided it was the caliper assembly bouncing due to too much play (really evident crossing railroad tracks) I went to my local hardware store and bought a few small sheets of brass stock in a couple of different thicknesses. It was thin enough to cut with scissors, though I don't recommend using your wife's good sewing shears  . After that it was just a matter of punching a suitably sized hole in the middle and installing it. No clunks since.

[Lobo]

Thanks Bob. You're the first to actually state the exact same experience, and better still to verify the shims appear to be the answer. Hoping to find the OEM shims still, but will go your route if no success soon.
Cheers.

[Lobo]

Great news, cheers OddJob.

Have just PM'd you...... I think!  (recipient address kept hiccuping back to 'Lobo')

If no PM can you pls advise,
Cheers, Lobo

[H2Eric]

Could be wrong, but the longer one may be from a later model. Is the caliper arm symetrical when viewed from above? early ones were, but I think the later ones had the pin slightly offset to the lefthand side.

Eric

[Lobo]

Hi Eric,

Yes it is - in fact you can almost see that from the picture, ie the radiusing from the pin to the carrier versus my current piece. (see pic page 1 of this thread)

DSS supplied it wrapped in official looking brown paper & the part # written on that - but no actual OEM bag or printed Honda part #. They obviously think its K2; but if it is then my forks are wrong as the stop-bot hole does not line up.

Notably the my current carrier has the digits "1 - 9" embossed towards the end, and this new part simply "7" (seen if pic enlarged)

Anyone suggest which part is correct for the K2 (Frame 2077...), and which bike the other part may belong to?
Cheers...

[Bryanj]

Question on your forks:-

Is there an allen bolt inside the axle clamp half circle going upwards(on the slider)

OR

do your forks have Bushes or do they run direct on the alloy.

As to the bracket it changes on the K3

[Lobo]

Hi Bryan,

Yup, see the K3 mod with the 'internal' Allen bolt .... give me a while as not inclined to dismantle the bottom forks in the detached minus 2 deg garage....

The later K2, & K3 onwards carrier (#13 below) has a totally different look about it from the parts diagram, and not at all similar to the DSS part I've been sent - which looks identical to the early K2 carrier (#12 below) but is dimensionally a tad longer, with stop-bolt hole displaced.

My front mudguard mount (ie forks 'tie' piece) is the older style, ie pre frame 2093730 -suggesting my forks earlier K2?.

I remain confused!

[Bryanj]

Forget the illustration, all those I have seen look like the ones you have mate

[Lobo]

...got the shims in this morning & the caliper play (nod) disappeared.

Regarding the carrier (correct for my K2 or not?, & see photos at bottom of page #1 this thread) it is 150mm overall length, versus the DSS new part which is around 165mm long. Still remain a little unsure which carrier is correct, tho' can't yet confirm Bryan's query over the forks.

[Seamus]

The one in my box of bits is 150mm. It is a K1 part, which carried on into early K2. Later carriers had  T piece mounts that bolted to the forks. Guessing that that carrier could have been longer.

Hope that helps

[Lobo]

Thanks Seamus,
This ties in with my (early) K2 frame #2077.... so I'm left wondering what part DSS sent me. (does look awfully similar, and prob could not tell unless other part to hand)