General => Douglas Motorcycles - General Discussion => Topic started by: tck on 09 Jan 2013 at 14:08

Title: what thread?
Post by: tck on 09 Jan 2013 at 14:08

EW 1926
Does anyone know the thread used on the 3/8 stud on the gearbox adjuster?
one end should be fixed into the casting in some way and the adjuster screws on the other end
it looks like its 19 tpi not 18 or 20 and knowing the strange threads used on the Bristol wonders I would rather not jump to 3/8 BSF without double checking the thread form
Title: Re: what thread?
Post by: Jim on 11 Jan 2013 at 10:35
Hello tck, I have just checked one and its 3/8 by 20 or BSF, regards Jim