Old bikes and oil leaks

Old bikes and oil leaks

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Dr Jekyll

Original Poster:

23,820 posts

262 months

Sunday 17th June 2012
quotequote all
May seem a silly question. But why did old British bikes (up to and including the last Meriden Triumphs), leak oil while Japanese bikes and Hinckley Triumphs generally don't?

Was it looser manufacturing tolerances? Different engine construction methods? Or did old British manufacturers simply not give a damn?