Making new tappet adjusters.

Making new tappet adjusters.

This topic has 26 replies, 14 voices, and was last updated 23 February 2023 at 12:08 by Howard Lewis.

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21 February 2023 at 15:59 #634500
Mike Poole
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@mikepoole82104
I rather doubt they would be BSP as that is 0.383 diameter, just a touch over 3/8”. 1/4” BSF is 26tpi and quite likely was used before the motor industry moved to UNF and UNC.

Mike
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23 February 2023 at 12:08 #634655
Howard Lewis
Participant
@howardlewis46836
Definitely 28 tpi, so probably Dad was wrong and they would be 1/4 UNF like the Unified threads use elsewhere in the engine.

Howard
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