lobo 22 #1 Posted June 19, 2015 Hello everyone, Not sure if this has been covered before but my question is, to advance the timing do you decrease the gap or increase it? Share this post Link to post Share on other sites
rmaynard 14,805 #2 Posted June 19, 2015 Widening the gap advances, and closing retards. Share this post Link to post Share on other sites
boomers_influence 106 #3 Posted June 19, 2015 lobomaynard is correct.an example may help you.j.D 318 B43G engine .016 point gap equals 16 degrees BTDC.case 446 B43M engine .021 point gap equals 21 degrees BTDCthank you. boomer. ( the used onan engine parts guy, also NOS and new ) Share this post Link to post Share on other sites
lobo 22 #4 Posted June 20, 2015 Thanks so much Bob and boomer, I hadn't thought of it like that, clears it up for me. Share this post Link to post Share on other sites