Coolant near sparkplug area

Gunnar · 10-21-2007, 06:40 AM

At first i thought it was from hosing the engine clean, so i dried it out with some cloth and letting the engine warm up and removing the wires to let the rest evaporate.

Then this morning i drove the car for 15 minutes , at first it did fine but then after a while it started holding back and running badly.
I parked the car in the driveway, checked the sparkplug area and again a bunch of coolant was all over the place.

Is this a known issue with headgasket gone (i would think no because it's a lot lower than that area) or is this a cracked head that's giving me trouble?

mrnickleye · 10-21-2007, 05:01 PM

Read this first:
http://www.toyota-supra.info/forums/...ead.php?t=8072

What engine do you have?

Ge? perhaps the coolant hoses to/at the throttlebody are leaking. Even the throttlebody leaking?

Possible heater hose leak at the back of the head. Or its that fitting or its gaskets.

This is from IHATEHACKS.....Those 3 14mm allen head bolts right next to each set of spark plugs (1 0 1- 1 0 1- 1 0 1, 1= spark plug 0= 14mm allen head inbetween the plugs) hold coolant. Do not take those out unless you have coolant in your spark plug wells. I've never seen or heard of those 3 leaking though, so I wouldn't worry about them.

Those bolts are under the #3 gasket that runs down the center, and keeps debri out of the sparkplug area.

Gunnar · 10-21-2007, 05:31 PM

Solved it, when the engine warmed up it started leaking a bit from that heater hose on the back topside of the engine, new clamp did the trick, thx for the info.

IHateHacks · 10-22-2007, 06:07 PM

Be glad that those 3 allen head bolts weren't the source of the leak. I tried to get them out before and after I removed my cylinder head and I could not get them loose, someone told me if you do take those out, the threads come out with the allen head bolts.

10-21-2007, 06:40 AM	#1
Gunnar Intake Join Date: Sep 2007 Location: Belgium Posts: 38	Coolant near sparkplug area At first i thought it was from hosing the engine clean, so i dried it out with some cloth and letting the engine warm up and removing the wires to let the rest evaporate. Then this morning i drove the car for 15 minutes , at first it did fine but then after a while it started holding back and running badly. I parked the car in the driveway, checked the sparkplug area and again a bunch of coolant was all over the place. Is this a known issue with headgasket gone (i would think no because it's a lot lower than that area) or is this a cracked head that's giving me trouble?

10-21-2007, 05:01 PM	#2
mrnickleye 1000whp postwhore Join Date: Jun 2005 Location: Mojave Desert, Calif. Posts: 1,705	Read this first: http://www.toyota-supra.info/forums/...ead.php?t=8072 What engine do you have? Ge? perhaps the coolant hoses to/at the throttlebody are leaking. Even the throttlebody leaking? Possible heater hose leak at the back of the head. Or its that fitting or its gaskets. This is from IHATEHACKS.....Those 3 14mm allen head bolts right next to each set of spark plugs (1 0 1- 1 0 1- 1 0 1, 1= spark plug 0= 14mm allen head inbetween the plugs) hold coolant. Do not take those out unless you have coolant in your spark plug wells. I've never seen or heard of those 3 leaking though, so I wouldn't worry about them. Those bolts are under the #3 gasket that runs down the center, and keeps debri out of the sparkplug area. __________________ Had a Red 1989 N/A. Automatic. Sports Pkg. w/wing. TEMS, and some nice MODS. Sold to a friend 10/08/08. Last edited by mrnickleye; 10-21-2007 at 05:11 PM.

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10-21-2007, 05:31 PM	#3
Gunnar Intake Join Date: Sep 2007 Location: Belgium Posts: 38	Solved it, when the engine warmed up it started leaking a bit from that heater hose on the back topside of the engine, new clamp did the trick, thx for the info.

10-22-2007, 06:07 PM	#4
IHateHacks 20psi boost Join Date: May 2006 Location: New Haven/Hamden Posts: 793	Be glad that those 3 allen head bolts weren't the source of the leak. I tried to get them out before and after I removed my cylinder head and I could not get them loose, someone told me if you do take those out, the threads come out with the allen head bolts.