Skip to main content
English French German Italian Spanish

Boyer coil mounting

Forums

I have a double ended coil to fit to the Atlas that came without fixings. The mounts are threaded but I have been unable to match them,not sure if they are 1/4 bsf or1/4 unf ,any idea?.

Permalink

I take it you have tried threading known bolt sizes into the coil? I believe that when I fitted one to my BSA, it had metric M6 threads, so maybe that's the problem.

Permalink

1/4 UNF are 28 TPI

1/4 BSF are 26 TPI

1/4 Cycle are 26 TPI

Try M6 for a match they are common enough

Permalink

Nope, m6 pass through, may be m7. Tried about 10 taps so far.I will see if Boyers know .____ Not a thread at all,though it looks like one. through bolts with ally sleeves needed to conduct the heat away to a sink,comes as a kit.If not used expect the coil to expire.

 



© 2024 Norton Owners Club Website by 2Toucans