SOHC.co.uk Forums > CB350/400
400F valve guides in a 350F
Orcade-Ian:
My 1977 Honda parts list shows this:
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Only 4 seals listed and only shown on inlet in illustration
Ian
AshimotoK0:
--- Quote from: orcadian on May 20, 2019, 01:23:44 PM ---My 1977 Honda parts list shows this:
(Attachment Link)
Only 4 seals listed and only shown on inlet in illustration
Ian
--- End quote ---
Agreed Ian .. I still reckon the -335 part is the one with the seal though .. but I last stripped a 400/4 engine in 1986 and I can't honestly remember if seals were fitted or not :-[ I wonder if there were any Service Bulletins for the 350/400F ?
Trigger:
Early 400's don't, late 400's do ;)
This info is written on a scrap bit of paper in my draw :D :D :D
Orcade-Ian:
Hm,
Mysterious! My US spec 400 is 1975 and only 500 ish in from the start on engine number. Although I have now had the thing completely to bits there really was no evidence of anyone having been in there before but I suppose they could have been ultra Trig in the carefulness and used gen stuff back in the day but mine has seals on all valves. A US thing? Dunno. Also weird that the apparently none seal number is numerically later.
Ian
Nurse Julie:
My friend in Tennessee who is rebuilding his early USA spec CB400/4 found valve stem seals on both sides. His engine has never been apart prior to this rebuild. My late UK 400/4 also has them on both sides.
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