1998 Kia Sportage blown out sparkplug

BRYANMCORBETT

MEMBER
1998 KIA SPORTAGE
4 CYL
4WD
MANUAL
168,000 MILES

#2 sparkplug shot out. Stripped threads. Destroyed plug cover below coil. Bent plug. Second motor same problem. #4 plug last motor. What could cause this? Lower bearing? Wrist pin? Valves? As if piston rises to far and slams plug out.

Saturday, March 21st, 2009 AT 10:33 AM

3 Replies

MERLIN2021

MECHANIC
17,250 POSTS

Is the tip that is inside the chamber getting hit? Or is it just blowing out of the hole? May have incorrect plugs, or torque isnt right. You can buy a Helicoil kit to fix the threads. And a rethreading tool for the good ones, just to make sure!

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Saturday, March 21st, 2009 AT 10:48 AM

BRYANMCORBETT

MEMBER
2 POSTS

Tip of plug gets bent

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Saturday, March 21st, 2009 AT 6:32 PM

MERLIN2021

MECHANIC
17,250 POSTS

I looked for any TSB's on this and found none, could be the incorrect plugs, or the metal gasket ring that comes with some plugs is not in place? Not installed tight.

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Sunday, March 22nd, 2009 AT 10:17 AM