[SEL] Machinists Question?

[Listerdiesel]

On 7/8/05, Listerdiesel <listerdiesel at gmail.com> wrote:
> On 7/8/05, peter ogborne <jopeter at omninet.net.au> wrote:
> > Does anyone know the thread size for the spark plugs on a Ford A . I am
> > making some adapters so that we can use 14 mm plugs.
> > To me it looks like .865 x .1.5mm pitch . If anyone can confirm this i would
> > be most grateful.As you may gather i don't have any reference.
> > In anticipation ,thanks
> > Peter Ogborne

That one got out before I had time to write anything.

The old edition of the SAE handbook we have quotes 7/8" (0.875")  with 18 TPI.

Peter
-- 
Peter A Forbes
Email: listerdiesel at gmail.com
Web: www.oldengine.org/members/diesel