Clutch slave, should I hone??

[unclfkgbully]

Hi there from the neeewwbie! 1stly great site!! A+++++.
I have a question regarding a clutch slave cylinder from an rsv aprilia.
I,m replacing the seal on the piston inside the clutch slave, and some people have said i should slightly hone the cylinder be4 assembly with the replacement seal??? And others have said no hone??
Any help greatly appreciated.
Cheeers earrs
Daza

[Motu]

I presume it's an alloy cyl? It pays not to hone alloy cyls,just a good clean does the trick.Any pits or grooves and bin it.

[imdying]

Depends... some alloy cylinders should never be honed... they have a hard anodized bore, and the anodizing is very thin, and honing it will remove it. Some alloy cylinders you can though, but I couldn't tell without seeing it.

Did a ZXR750 one the other day, it was hard anodized. Had to hone it, had rubber built up on it, and I had a fairly good idea what was beneath the rubber build up. Sure enough, it had a pit in it.

Assuming the slave is rooted, you'll either need to get a replacement, or have it stainless steel resleeved. Apex Engineering in Hamilton does it, as does Canterbury Brake and Clutch in Christchurch. There's a raft of other places, these two have the most experience and do the best job in NZ, imho.

Re-sleeving a slave will probably cost you about $85. It is however worth checking the price of a new one, you'll need to buy a new seal regardless.

Anything else you want to know, just ask.

[unclfkgbully]

Thanks for the quick response!
The bore of the cylinder is anodized, and not showing excessive wear, feels smooth..
I was just unsure whether honing the bore was common practice or not when replacing the seal..
I,ll try replacin the seal to see if the leak stops 1st b4 lookin at a replacement slave., and flag the hone. aye?
Cheers again.
daza

[imdying]

Thanks for the quick response!
The bore of the cylinder is anodized, and not showing excessive wear, feels smooth..
I was just unsure whether honing the bore was common practice or not when replacing the seal..
I,ll try replacin the seal to see if the leak stops 1st b4 lookin at a replacement slave., and flag the hone. aye?
Cheers again.
daza

Yeah, if it is anodized, don't hone it.

Just replace the seal, assuming the bore is in excellent nick. If in any doubt, one of the places above will sleeve it (probably faster than you can get a factory seal )