21-08-2018, 07:55 AM
(20-08-2018, 08:12 AM)Ruairidh Dunford Wrote: The thread is actually Whitworth but 2BA is a very close alternative.
There are several types of fan pulley all of which are different lengths - can you post a photo of yours?
Thats good to know, remeasured the bolts on mine and they are 2BA - but all different so not original. A 2 BA tap runs down the holes fine but I have no bsf or other to compare.
Pics below of the pulley setup, I assume its standard, perhaps someone with a speedy engine can confirm. I have always assumed the problem stems from the body position on the chassis. Its an Arrow and has a few "hand built" attributes