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Messages - andy_c101

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46
CB500/550 / Re: cylinderhead overhaul
« on: January 13, 2013, 08:13:00 PM »
Been too busy to post, but after a long long time, at last the K3 is alive again and breathin' fire! ;D

- new guides/valves/re-cut seats/honed bores/new rings/camshaft/chain/blasted 'n painted casings

- buttoned down the head this w/end; set valves & points
- fired her up, Bingo she runs! On the button, first time (well 2nd actually)
- probably could do with re-balancing the carbs

then we're ready to rock n roll....
Ah! they say its gonna snow, Doh.
I don't want to pick up any of that nasty road salt, guess I'll have to wait. :(

But its a good feeling to 'bring her back to life after all these months.

AC


47
Other Bikes / Re: CB250RS - Honda workshop service manual?
« on: December 02, 2012, 11:20:20 PM »
Thanks for the suggestion, but nope, not the 250RS.
- seen a few hardcopy versions on ebay, but a bit pricey.
- still looking
Andy

48
Other Bikes / CB250RS - Honda workshop service manual?
« on: December 01, 2012, 09:37:36 PM »
Hi,
my lad has just started his first 'project', a CB250RS 'cafe'
Any one know if the Genuine Honda Workshop Manual is still available for the 'RS' or even an online download?
- not that he'd read it!
cheers



49
CB500/550 / Re: cylinderhead overhaul
« on: October 10, 2012, 09:46:36 PM »
Valve Guides now installed!!! :)

Boy! It has been a long saga.
Summer has been & gone off the road (but I didn't miss much this year!)

After a  long wait for the Driver tool (No 07942-329-0200)  & Extractor tool (No. 07942-329-0100).

I carefully followed the prescribed heat-n-freeze method.
Only to end up cracking the flange of the first valve guide !!
The Driver Tool is like a blind-hole socket, but it only contacts the flange of the guide.
(used Genuine Honda guides)
Plan B:  used the Extractor tool  to INSTALL, as this is a snug fit with the I/D of the guide and buts squarely at the top of the guide.  (I had realised the extractor removed the old guides fine, without damaging the ends, so I thought why not use it for installing?)

So while house was empty, did some baking!

 Heat-Freeze & lube oil. ...Bingo!....went in nicely with just a few taps.

Reamer worked a treat too.
just some valve lapping to do.

AC

50
CB500/550 / Re: cylinderhead overhaul
« on: September 01, 2012, 10:08:25 AM »
Still waiting on David Silvers supplier for my valve guide driver & reamer.
"ETA is now end of September" !......yawn.

51
CB500/550 / Re: 550 Centrestand
« on: August 27, 2012, 09:56:23 PM »
Fantastic job.
Thanks for the explanation; & as I say, well engineered and looks the part.
Thanks for the kind offer of the spare bump-stop; I'll stay as-is for now.
cheers
AC

52
CB500/550 / Re: 550 Centrestand
« on: August 20, 2012, 10:27:44 PM »
Oldbut..
I think yours is a far better 'engineered' solution.
Where did you get the parts from, was it from a CB1300?

AC

53
CB500/550 / Re: 550 Centrestand
« on: August 13, 2012, 09:52:50 PM »
Sounds like you're nearly there; (I was late in reading this thread)
but along the same lines as Oddjob suggested, I used a small piece of sheet metal ('Ali'?) at the hinge bolt, bent to suit the correct 'hang height' of the stand when 'up' - to clear the silencers and avoid scrapping the stand in the corners.
- seems to work just fine.
- my photo attached.
Hope yours works out ok.

AndyC

54
CB500/550 / Re: 4 into 4 exhausts
« on: August 06, 2012, 07:05:22 PM »
Basket, Tomb,
I put those on mine back in Dec 2010 (see page 1 of this message string).
- sound great (& no, not toooo loud)
got them from :
http://www.bitzforbikes.co.uk/Chrome_Universal_Silencer_-ref-2978-116.html

Andy C

55
CB500/550 / Lap/skim face of cylinderhead
« on: July 26, 2012, 01:32:57 PM »
CB550K3:
I want to just 'refresh' the surface of the cylinderhead on the gasket face, by just having the head lapped, say a "couple of tenths".
That should be ok to do that without loosing valve-piston clearance, shouldn't it?
- any thoughts?
AndyC

56
CB500/550 / Re: cylinderhead overhaul
« on: July 13, 2012, 06:37:29 PM »
Yeah I tend to agree the actual bore dimensions alone, are somewhat academic, yes its the actual fit that counts.
- I've got a Honda Reamer on order, just waiting....

57
CB500/550 / Re: cylinderhead overhaul
« on: July 13, 2012, 03:47:25 PM »
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



58
CB500/550 / Re: cylinderhead overhaul
« on: July 09, 2012, 03:01:37 PM »
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

59
CB500/550 / Re: cylinderhead overhaul
« on: June 28, 2012, 12:07:12 AM »
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


60
CB500/550 / Re: cylinderhead overhaul
« on: June 26, 2012, 08:16:51 PM »
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

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