Go Back   The Ford Barn > General Discussion > Early V8 (1932-53)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 01-25-2020, 07:03 AM   #1
Jembow
Senior Member
 
Jembow's Avatar
 
Join Date: Sep 2013
Location: Spalding, United Kingdom
Posts: 187
Default helmet distributor air gap?

I'm sure I read a recent post saying the rotor to side plate gap is crucial to good starting and running. Question is, what should that gap be? I'm assuming close as you can make it without touching. Is there a recommended max & min?
Jembow is offline   Reply With Quote
Old 01-25-2020, 01:32 PM   #2
Terry,OH
Senior Member
 
Terry,OH's Avatar
 
Join Date: May 2010
Posts: 3,365
Default Re: helmet distributor air gap?

48-12201: Max 0.0105", Min.0.0035"
Terry,OH is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 01-25-2020, 02:36 PM   #3
Kurt in NJ
Senior Member
 
Kurt in NJ's Avatar
 
Join Date: May 2010
Location: on the Littlefield
Posts: 4,950
Default Re: helmet distributor air gap?

In a 30s radio installation book it said ( for reasons of radio interference), build up or move contacts to get 0.005 gap

A larger gap increases firing voltage for the spark plugs, a larger rotor gap will fire fouled plugs because of the higher voltage needed to jump the rotor gap---- but too much gap can increase the voltage beyond what the coil can make--- or stress the insulation to failure in the coil
Kurt in NJ is offline   Reply With Quote
Old 01-25-2020, 05:18 PM   #4
Jembow
Senior Member
 
Jembow's Avatar
 
Join Date: Sep 2013
Location: Spalding, United Kingdom
Posts: 187
Default Re: helmet distributor air gap?

Thanks gents
Jembow is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 09:22 AM.