SOHC.co.uk Forums > CB350/400

Main bearing and primary guides advice

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Fleabie:
Ok, thanks for the replies.. Does this mean they are unusable?

Bryanj:
No, useable just run in with care

Fleabie:
So the saga continues... slowly. I fitted and torqued down the <cough> "new" blue main shells with plastigauge. The first plastigauge I used (PL-X) showed a clearance>0.045mm (i.e. off the scale for that plastiguage type).So I then bought plastigauge PL-A and this shows a clearance of more like 0.076mm which means the clearance is at the service limit (0.08mm). So what to do next :-(

Originally I a was trying to source black shells, but I cannot find these for love nor money. I am beginning to wonder if black ones would give quite high clearances. So what would people do next ? Go the other way and get a set of brown main shells ones ? (seeing as the clearance is so large with the blues.)

TIA, Bill.

Bryanj:
Its inside the limit so use them

Fleabie:
Thanks Bryan. Your help is much appreciated :-)

Would there be any harm in fitting brown shells? Would they be better in the long run as it would give a a tighter main shell clearance ? i.e. better oil pressure, longer life of engine etc?

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