Why is there coolant on sparkplugs?

jimstaz · 08-27-2013, 03:27 PM

why do o have coolant on my spark plugs.. the car idles fine... is somehting going wrong with the engine is is the coolant normal? just doing a tune up... and recently did replace the radiator about a month ago.

mazpower · 08-27-2013, 07:08 PM

Coolant on spark plugs means the seals have failed and it's time for a rebuild.

t_g_farrell · 08-28-2013, 06:32 AM

You have an internal coolant leak for sure. You can try the AlumaSeal in the coolant. I've had
success with it on a leak between the front plate and the front housing at the top. It took
a few days but now the leaks is pretty much gone. Some folks have done this and kept a
motor running for over 50K longer.

Of course this was on an old 12A and not an rx8. YMMV.

08-27-2013, 03:27 PM	#1
jimstaz Rotary Fan in Training Join Date: Jul 2011 Location: clarksville, tn Posts: 87 Rep Power: 14	Why is there coolant on sparkplugs? why do o have coolant on my spark plugs.. the car idles fine... is somehting going wrong with the engine is is the coolant normal? just doing a tune up... and recently did replace the radiator about a month ago.

08-27-2013, 07:08 PM	#2
mazpower Rawr Bearclaw Join Date: Feb 2008 Location: The Souf Posts: 197 Rep Power: 18	Coolant on spark plugs means the seals have failed and it's time for a rebuild. __________________ Illicit Performance Rotary building, porting, tuning, chassis dyno services www.illicitperformance.com

08-28-2013, 06:32 AM	#3
t_g_farrell Waffles - hmmm good Join Date: Aug 2008 Location: Huntersville, NC Posts: 757 Rep Power: 0	You have an internal coolant leak for sure. You can try the AlumaSeal in the coolant. I've had success with it on a leak between the front plate and the front housing at the top. It took a few days but now the leaks is pretty much gone. Some folks have done this and kept a motor running for over 50K longer. Of course this was on an old 12A and not an rx8. YMMV. __________________ 1980 GS stockport, Fat Nikki, RB Dual Facetfuel pumps, Holley regulator, RB Street port exhaust, 2GDFIS, MR2 MK I electric fans, 2G strut bar, relayed fans, lights and fuel pump, LEDs Project Fat Nikki Budget 12A rebuild Video setup < $30.00