09-10-2021, 08:39 AM | #1 |
Senior Member
Join Date: Dec 2016
Location: Middletown, NY
Posts: 162
|
Spark Plug Gap
I have a 12 volt system, 6.1 Snyder's head, and a Pertronix Flame Thrower 3.0 OHM Coil (40611). Conventional wisdom says with a high compression head that the gap should be .030-.032. However with the Pertronix head the gap can be moved to as much as .040. Experiences? Suggestions? Thank you for any info. Gary D.
|
09-10-2021, 09:19 AM | #2 |
Senior Member
Join Date: Apr 2018
Location: Mebane NC
Posts: 2,329
|
Re: Spark Plug Gap
My understanding is that the .040 capability is just that - a capability. You could do it if you needed to, but I haven't seen anyone actually need to do it on these engines.
|
Sponsored Links (Register now to hide all advertisements) |
|
09-10-2021, 10:32 AM | #3 |
Senior Member
Join Date: Jun 2015
Location: Red Deer, Alberta
Posts: 5,004
|
Re: Spark Plug Gap
Try .032" for a while, then try .035" for a while to compare. Every engine/components are different.
You may also try .030".
__________________
If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn! Last edited by katy; 09-10-2021 at 11:02 AM. Reason: Addition |
09-10-2021, 11:36 AM | #4 |
Senior Member
Join Date: May 2010
Location: Largo Florida
Posts: 7,225
|
Re: Spark Plug Gap
Yep, I agree. Start out small and keep increasing the gap, see what happens.
That coil appears to come either oil or epoxy filled. Do you know what you have ? |
09-10-2021, 01:17 PM | #5 |
Senior Member
Join Date: Dec 2016
Location: Middletown, NY
Posts: 162
|
Re: Spark Plug Gap
Coil is epoxy. Gary
|
09-10-2021, 01:27 PM | #6 |
Senior Member
Join Date: May 2010
Location: Santa Rosa, CA
Posts: 1,276
|
Re: Spark Plug Gap
Sponsored Links (Register now to hide all advertisements)
|
09-11-2021, 06:32 AM | #7 | |
Senior Member
Join Date: Jun 2014
Location: Land of Lincoln
Posts: 3,113
|
Re: Spark Plug Gap
Quote:
__________________
Don't force it with a little hammer tap, tap, tap get a bigger hammer tap done |
|
09-11-2021, 07:39 AM | #8 |
Senior Member
Join Date: May 2010
Location: Largo Florida
Posts: 7,225
|
Re: Spark Plug Gap
These newer type coils put out 40K volts. So it won't matter much how wide the gap is, it'll get jumped.
|
09-11-2021, 08:36 PM | #9 |
Senior Member
Join Date: Jun 2014
Location: Melbourne, Australia
Posts: 7,470
|
Re: Spark Plug Gap
I think he is asking about the plug gap, not the points gap.
__________________
I'm part of the only ever generation with an analogue childhood and a digital adulthood. |
Thread Tools | |
Display Modes | |
|
|
Sponsored Links (Register now to hide all advertisements) |
|