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Honda CB750K5 Restoration by Royhall
philward:
Alan built my CR750 Rep Borrani (replica) alloy wheels (went to his house in Maghull on outskirts of Liverpool) - great job.
I used DS supplied DID rims on my 500 (I built them up myself) but only been on the bike a year (in heated garage) and signs of rust showing - disappointed really
K2-K6:
--- Quote from: philward on May 01, 2022, 10:00:49 PM ---Alan built my CR750 Rep Borrani (replica) alloy wheels (went to his house in Maghull on outskirts of Liverpool) - great job.
I used DS supplied DID rims on my 500 (I built them up myself) but only been on the bike a year (in heated garage) and signs of rust showing - disappointed really
--- End quote ---
You could try using castor oil on the chrome, lightly coat it and leave a couple of days, then gently buff it (not polish it away) it's highly water repelling and will likely stop any moisture going through porous chrome to pick up on the steel. Not what you'd expect for a chromed item , but may give you contingency to prevent it increasing.
philward:
Thanks for the tip, only very light signs which are easily removed but still disappointing for a so called quality rim.
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royhall:
The project is grinding along at a slow pace as usual. The cases/barrels/head are back from vapour blasting and ready for a really good clean in all the nooks and crannies (what are nooks and crannies?). Once clean I will mask off all the "not to be painted areas" and give them 3 or 4 coats of Simoniz SIMVHT31D and give them a good cook in the oven.
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Looking at that picture I have just noticed what looks like a crack on the top of the upper case. That's going to need some urgent investigation. Maybe if I'm lucky it's just a casting mark.
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EDIT: Had a look at the top casting and its thankfully just a very shallow surface scratch.
I managed to get the original data label off the frame intact before it went for powder coating. A little bit of gentle massaging got it back the correct shape with the holes still good enough to rivet. The rivets I used were slightly larger than the originals due to the holes being opened up slightly. I also took the precaution of using clear silicone behind it. It's not perfect but I am more than happy with it. At some point I may just touch it in a little bit with a fine artists brush, or I may just leave it?
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The only other thing done this week is painting the rear cush drive casting and fitting the bearing whilst it was still warm from the paint cooking, yes I used the same Simoniz silver.
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This afternoon my urgent job is to go through the boxes and figure out where everything is and what new parts I still have to get. This is what a CB750 looks like stripped down along with most of the new parts. That lot doesn't incude the frame and engine castings, nor the painted parts that are out for painting. I really need a much much bigger garage.
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Johnny4428:
Great work Roy, always good to view your progress.
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