SOHC.co.uk Forums > CB750
750 K2 Strip & Rebuild - help please
Lobo:
More progress on the engine rebuild…
The cases blasted, and despite being told 99% of the beads cleaned away, an amazing amount still came out. We thoroughly washed, (air line) blew all casings, dried them in an oven, and repeated the whole process. Fingers crossed, it really is aggressive stuff.
Next sprayed the cases with a HT Silver, before baking at 180C for an hour. Then the rebuild, which went quickly and with little fuss. I’d cleaned all parts thoroughly, and supplied all new bearings, seals, chains…. and re-zinc plated all fasteners. All gear dogs + mating faces undercut on both drive and overrun sides.
Head away this morn for valve work, barrels being rebored 0.5mm os.
McCabe-Thiele (Ted):
All looking good but can't see any assembly lube or is it colourless?
Lobo:
Yup, graphite oil on big ends and mains, otherwise squirts of oil in all bearings / moving bits as we progressed. I’ll agree; it looks drier than it is…
K2-K6:
The best bit, building them again after detailed preparation.
Always amazed at just how much research and development went into these engine, such nice details within those cases :)
Lobo:
It really is a thing of beauty, and fiendishly compact. Cable oiler very cunning; though will be ‘turned off’.
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