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1971 CB500K0 Resto 3/71 VIN 1000896
Bryanj:
I think he meant "drown" and i had a ford 3.0 v6 that seized a piston due to a carb diaphragm going and petrol washing all the oil from the relevant bore, checking a rod for twist and bend is easy if you have the correct kit, I have a couple of spare rods, not sure on codes, if you want one ash
UK Pete:
--- Quote from: AshimotoK0 on September 07, 2016, 11:07:24 PM ---
--- Quote from: UK Pete on September 07, 2016, 09:56:19 PM ---Ash do you have liners for k0 barrels?
pete
--- End quote ---
yes the ones that were originally in my K0
--- End quote ---
what are they like ash, oh and did you get my payment
pete
AshimotoK0:
Sorry Pete ..yes got the payment ta !
I think they are slightly ridged at the top as they had done 46k miles ! I can bung a ring in them and measure the change in gap, top to bottom if you wish . I got some minters with pistons for 50 quid from actually going to DK, going through their stock and haggling for cash.
AshimotoK0:
Well it's been a long time in hibernation due to work commitments but mainly many other projects coming my way like a CB72, Bomber, CD175A sloper, S90 and a 61 CB92 but this lockdown made me think it's time to finally put the early CB500K0 engine together.
Problem is, I planned to blank off all of the apertures in the crankcases after reassembling them bare and then bead blasting the outsides at work.....but that's not going to happen, as we are closed down where I work 3-days/week and I have no access to the bead blaster or a paint baking oven.
So it's back to the way I used to do it yonks ago with paint stripper, wire wheels, pressure washer, Dremel etc but at least I have big enough ultrasonic cleaner that I can get each case half into it to give the cases a deep clean and hopefully get rid of any residual oil in the pores. I got that ultrasonic cleaner from the skip at work and managed to fix it and it's proved invaluable. Will keep you posted but been working on it for a day and a half now cleaning the cases on and off. There is still light brownish staining inside the cases but I may have to live with that unless anyone has a chemical method of stripping it. I do have a 4l tub of nasty hydroflouric acid based alloy cleaner but I will only use that as a last resort.
The bottom end of this engine was in really nice condition apart from the cage inside the countershaft bearing breaking up and the oil guide B damaged, a rubber component, being torn. Julie& Trigger have kindly found me an oil guide and I bought the correct NOS --323--- needle roller bearing from DS and I got the other gearbox needle roller bearing (a --286-- CB250/350K part) NOS from Dave Ayesthorpes stuff.
I have been through my spares and managed to put together a full oil seal kit (thanks Bryan .. I got most of those from you) and I must have bought both of the primary shaft bearings ages ago plus the needle roller assembly in the primary drive ages ago from Yamiya via my mate Chris in Japan. Also fitting a new primary & cam chain plus the 8 damper rubbers and cam chain guides for good measure. The countershaft looked OK initially but the failing needle roller bearing had in fact marked the shaft.. I have two spares to look at , one I got from an autojumble for £1 (plus a kickstart shaft complete for £1) and the other Bryan kindly gave me ages ago when I went down to see him.
One thing I need to fit is the 'Plate Oil Guide' as it was missing from my early engine, as predicted by Trigger (see diagram).
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My paintwork in the correct Candy Jet Green /black was done by Menno ages ago (superb job) and is safely tucked away in my loft. All of the fasteners have been BZP plated .. Frame was painted last year and fork bottoms polished plus original wheel rims replated and hubs satin polished but not lacquered yet. A place in Coventry, who are normally mega expensive, took on my rear mudguard and rear lamp bracket and made a really nice job at a brilliant price as a 'Stafford Show' deal. But when JamesH contacted them about rechroming some rims, sadly their quote was very expensive. They also did my mega rare K0 chrome fork ears but I had stripped and prepped them myself with repairs to holes/dents done in high silver content silver solder. Dave Ayesthorpes stuff provided me with NOS reflectors/rubbers and fork genuine fork gaiters. OddJob kindly sold me a pair of new side panel badges.
My barrels were rebored to +0.25 by Trigger and I got CB125S pistons and 323 rings NOS for them ages ago.
Bryanj:
Ash, i have to take the son to hospital tomorow for his infusion(crohns) and as my lockup is just round the corner i will have a look for that plate, i know i had 90% of an early clutch upgrade kit but its a while ago since i looked for it.
Anything else while im there mate?
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