Spark Plug Gap - RX8Club.com

09-13-2004, 11:42 PM

#1

HERO

Registered

Thread Starter

iTrader: (3)

Join Date: Aug 2004

Posts: 772

Likes: 0

Received 0 Likes on 0 Posts

Spark Plug Gap

Hey guys, I was wondering what effects would be created by changing the spark plug gap. Leading plug... trailing plug(or whatever they are called)... i'm not too firmiliar with the rotary design

. Has anyone tested any different gaps?

Reply Like

09-14-2004, 01:59 AM

#2

ZoomZoomH

Mulligan User

iTrader: (1)

Join Date: Jan 2003

Location: caddyshack

Posts: 4,612

Likes: 0

Received 2 Likes on 2 Posts

can you even gap a rotary engine spark plug??? there's no 'tip' to adjust it... it should come pre-adjusted ready for use...

Reply Like

09-14-2004, 08:00 PM

#3

HERO

Registered

Thread Starter

iTrader: (3)

Join Date: Aug 2004

Posts: 772

Likes: 0

Received 0 Likes on 0 Posts

ah i see, like i said im a rotary noob :o

Reply Like

09-15-2004, 09:08 AM

#4

MyRxBad

Fb's rock!

iTrader: (1)

Join Date: Jan 2002

Location: Toronto/Oshawa

Posts: 973

Likes: 2

Received 0 Likes on 0 Posts

The gap comes preset from NGK. I wouldn't mess with the gap because if you open it up too much you could end up taking out your apex seals.

Reply Like

09-15-2004, 10:18 AM

#5

ZoomZoomH

Mulligan User

iTrader: (1)

Join Date: Jan 2003

Location: caddyshack

Posts: 4,612

Likes: 0

Received 2 Likes on 2 Posts

how do you adjust a spark plug with no tip, like a rotary engine plug???

Reply Like

05-11-2008, 10:57 PM

#6

AJ's Shinka

Enthusiast

Join Date: Mar 2007

Location: LAS VEGAS

Posts: 1,145

Likes: 0

Received 1 Like on 1 Post

Widen the Gap

Umm I just change out my stock with a brand new stock pair of NGK and I widened the gap because the DIY said I could widen it to .059 (leading) and .055 (trailing) I adjusted them to .040 (which was wider than what they came out of the box) but you say they come out the box at .048. I hope I didn't mess anything up.