Author Topic: B21 tappet Clearances  (Read 153 times)

0 Members and 1 Guest are viewing this topic.

DOIVEY

  • Star
  • *
  • Posts: 4
    • View Profile
B21 tappet Clearances
« on: 24 July, 2017, 21:44:59 »
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
If it has been made before, it can be made again.

JulianS

  • Empire Star
  • *****
  • Posts: 482
  • A10
    • View Profile
Re: B21 tappet Clearances
« Reply #1 on: 25 July, 2017, 11:57:19 »
The photos are from the BSA book by D W Munro, 1954 edition.

Should give you answers.
« Last Edit: 25 July, 2017, 12:09:12 by JulianS »

DOIVEY

  • Star
  • *
  • Posts: 4
    • View Profile
Re: B21 tappet Clearances
« Reply #2 on: 26 July, 2017, 19:10:03 »
Thanks Julian, much appreciated.
If it has been made before, it can be made again.