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1971 CB500K0 Resto 3/71 VIN 1000896
AshimotoK0:
Got all of my fork sliders cleaned up. Just need a final ultrasonic clean/degrease and clear coat. Bought some Eastwood Diamond Clear coat but not tried it yet.
Got my parts from Japan inc, primary chain and dampers plus some parts off that diamond geezer Bryan inc a nice gasket set.
Loads of BZP parts ready at Allenchrome inc spokes etc.
Got a nice set of USA bars C/W the K0 grips from DK, rather than rechroming my originals. I had chopped off one of my original bar grips, as I thought it was a crabby aftermarket one but it wasn't :-[ :-[
Started cleaning the head up today. Before I started, I filled the head skulls with acetone and no leakage so hoping to get away with lapping in the valves and general cleanup, provided the guides are OK.
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Found my 'lost' oil restrictor jet ...it was still in the barrels.
Decided against using the 1 piece oil ring piston ring sets I bought (although I can't really see much wrong with using them, as Paul on here did and has not had any problems) and bought --323--- Genuine Honda 3-piece rings at great expense only to find I also already had loads of sets of CB125 single ones, which are essential the same part, just a slightly different oil control separator. Also found CB125 pistons are exactly the same as 500/4 ones.
My original camshaft had a couple of tiny pits on two lobes so I decided I would get a replacement, as the rest of head looked nice and I want to do the best job I can. I got a nice cam from DK which , for reasons I won't go into, I ended up getting for free. I measured the run-out in my head and it is 0.05 mm which is half of the allowed service limit but when I put it in my head, oiled up and rotate it there is a tight spot, nothing serious but slight resistance to turning never had that before. Any ideas anyone?
AshimotoK0:
--- Quote from: AshimotoK0 on August 21, 2016, 01:41:15 PM ---
My original camshaft had a couple of tiny pits on two lobes so I decided I would get a replacement, as the rest of head looked nice and I want to do the best job I can. I got a nice cam from DK which , for reasons I won't go into, I ended up getting for free. I measured the run-out in my head and it is 0.05 mm which is half of the allowed service limit but when I put it in my head, oiled up and rotate it there is a tight spot, nothing serious but slight resistance to turning never had that before. Any ideas anyone?
--- End quote ---
Sussed the problem ... when I put the camshaft in 'V' blocks at work. Someone at DK must have very slightly bruised one of the corners of the notch at the end of the cam journal (tacho drive side). i'll have it dressed and should be OK then.
royhall:
Six sets of forks on the go at once Ash. You must be a glutten for punishment. ;D
AshimotoK0:
--- Quote from: royhall on August 22, 2016, 02:58:56 PM ---Six sets of forks on the go at once Ash. You must be a glutten for punishment. ;D
--- End quote ---
Did a set a day a month or so back, typically 2 hours/leg even using the lathe. TBH the 500K0 ones were a doddle C/W one of the CB250K0 sets and the 750K0 set which had deep marks in them. They will look nice when cleared coated though. Onto the hubs now. Had to make a rig to rotate the drums as my lathe is too small. Could do them at work but it would mean even longer away from home from the missus ;D ;D (which wouldn't go down too well). Did I tell you a plastic air filter box off a 500 fell from the tall freezer in my garage onto her head when she opened the door .. this was 'reported to UK Pete when he visited me Friday :-[ :-[ :-[.
UK Pete:
Yes ash that big nasty heft lump of an air box could of killed her and anyone in the near vicinity, she had a lucky escape
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