SOHC.co.uk Forums > CB500/550
cylinderhead overhaul
andy_c101:
Right... the kit is slowly coming together.
I've gotten hold of a great camshaft, in virtually perfect condition!
I'm going to carefully try the sealey light honing tool (suggested by RobK7) to de-glaze the bores & fit new rings.
Have already de-coked piston crowns and cyl/head.
I'm going to see a local place for bead blasting rocker/head & barrels whilst it all apart.
Got new Honda Valves & Guides from CMSNL.
On this last point, the guides do need reaming (just as BryanJ said).
I think I'll need to try D.Silver for the guide driver & the reamer.
Next task will (probably) be to lookout for a Neway valve cutter tool (as mentioned by UK Pete)
Only glitch is I have to take to 'troops' on holiday next week for ten days, so that will add a further delay.....
-it could be a slow process, this rebuild!
Andy C
andy_c101:
Whilst the barrels are off, I am planning on changing camchain,but will need to split it to feed-on the new one, then rivet that.
I thought my push-bike chain rivetter would do, but the camchain pitch is much smaller.
Anyone know the tool number for splitting/rivetting the camchain?
CamChain is: 219T-088
Bryanj:
That tool is expensive for a one off job, used a grinder to split and two hammers to re-rivet the new soft link (500 twin one if you didn't get one with the chain)
andy_c101:
Ref my Valves & guide from CMSNLs
CMSNL say they should NOT need reaming ! ??
& now ask me to return the parts?
I suppose I had better do that; but it will add further delays,
and makes me start to loose confidence.
That's all for now
andy_c101:
I'd like to get a second opinion on calculating the acceptable limits & fits for the valve guides I/dia?
see attached info.
my calcs for the I/Ds workout at:
Inlet: 5.460/5.500mm
Ex: 5.460/5.495 mm
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