spark plug gapping? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

91CRXsiR · 02-14-2003, 01:22 PM

i just got my plug wires and plugs from PDM [ thanks Don ]

anyways i got some NGK iridium plugs, do i need to gap these? or the fit right in.

91CRXsiR · 02-14-2003, 01:31 PM

n/m did some research @ 240sx.org

Set your plug gap to 1.0 - 1.1 mm.

question is now how do i gap it?>

Natty · 02-14-2003, 01:38 PM

I think AutoZone (or YFLAPS) shoudl sell the tool.
Jeff

*Jeff240sx* · 02-14-2003, 02:00 PM

You really can't gap Iridium plugs (trust me, I know), with a $.99 slide-gapper from AutoZone.
The only safe way in my eyes is to get the expensive gapping tool that looks like pliers. It will gap them down, but never up. You can not make a larger gap in Iridium plugs. Also, the gap depends on the mods / ignition that you have. .035" is usually a safe place to gap if you have mods. On my KA-T, I think I'll gap down to .028" or so.
-Jeff

91CRXsiR · 02-15-2003, 12:39 AM

cool , i ended up picking up the tool from kragen. quick and easy install.. car feels more alive.. now to fix that pesky exhaust flange gasket

02-14-2003, 01:22 PM	#1
91CRXsiR Nissanaholic! Join Date: Oct 2001 Location: City of Industry, CA [626] Age: 42 Posts: 2,092 Trader Rating: (1) Feedback Score: 1 reviews	spark plug gapping? i just got my plug wires and plugs from PDM [ thanks Don ] anyways i got some NGK iridium plugs, do i need to gap these? or the fit right in.

02-14-2003, 01:38 PM	#3
Natty Zilvia Addict Join Date: Dec 2001 Location: Nashville, TN Posts: 944 Trader Rating: (0) Feedback Score: 0 reviews	I think AutoZone (or YFLAPS) shoudl sell the tool. Jeff __________________ 1991 White 240sx Fastback LE, rusty spoiler, weak driveshaft, exhaust rattle.... Rattles are just your cars way of saying 'I love you.'

02-14-2003, 02:00 PM	#4
Jeff240sx I hate you too... Join Date: Jul 2001 Location: Tampa, FL Age: 42 Posts: 5,828 Trader Rating: (0) Rides Gallery: Jeff240sx Feedback Score: 0 reviews	You really can't gap Iridium plugs (trust me, I know), with a $.99 slide-gapper from AutoZone. The only safe way in my eyes is to get the expensive gapping tool that looks like pliers. It will gap them down, but never up. You can not make a larger gap in Iridium plugs. Also, the gap depends on the mods / ignition that you have. .035" is usually a safe place to gap if you have mods. On my KA-T, I think I'll gap down to .028" or so. -Jeff __________________ Whatup?

02-14-2003, 01:31 PM	#2
91CRXsiR Nissanaholic! Join Date: Oct 2001 Location: City of Industry, CA [626] Age: 42 Posts: 2,092 Trader Rating: (1) Feedback Score: 1 reviews	n/m did some research @ 240sx.org Set your plug gap to 1.0 - 1.1 mm. question is now how do i gap it?>

02-15-2003, 12:39 AM	#5
91CRXsiR Nissanaholic! Join Date: Oct 2001 Location: City of Industry, CA [626] Age: 42 Posts: 2,092 Trader Rating: (1) Feedback Score: 1 reviews	cool , i ended up picking up the tool from kragen. quick and easy install.. car feels more alive.. now to fix that pesky exhaust flange gasket