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B21 tappet Clearances

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DOIVEY:
Can anyone in the know enlighten me as to what the clearances are for the inlet and outlet on the B21 please.
when i rebuilt the engine i set them by rotating the pushrods without resistance and making sure they didn't rattle vertically.
i just wondered what the correct values are.
thanks in advance
david

JulianS:
The photos are from the BSA book by D W Munro, 1954 edition.

Should give you answers.

DOIVEY:
Thanks Julian, much appreciated.

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