1986.5 with blown Head Gasket - Removing Spark Plugs

unkymurch · 02-23-2007, 08:25 PM

Advice needed for how to remove all the spark plugs.

I put my sputtering 1986.5 Supra with a blown head gasket in the garage until I figured out what to do. After just a few weeks, I tried to restart it a few days ago, but it was a NO GO.

I was told to remove the spark plugs and cycle the motor to blow out the coolant that may have filled the chambers and then it would restart.

I can see and touch three plugs but three are underneath all the mechanisms of the engine.

What is the minimum I have to remove to gain access to the hidden three spark plugs? It's very intimidating too see how much has to be removed to get all the plugs out.

Is there some free internet diagrams or procedures with pictures that would tell me how to do this? I have a Toyota Shop Manual but it is useless in explaining how to remove the spark plugs.

Any advice and words of wisdom would be appreciated.

Thanks,

Mitchell

ddmcse · 02-23-2007, 11:19 PM

i would drain some motor oil to see if water comes out first before the oil

oil floats ontop of water

this will give you some kind of indication of how much of a blown gasket you are dealing with

i wouldn't start it just for ha ha's

damdog05 · 02-24-2007, 01:59 AM

the mininmum youd have to remove is the throttle body. go here and it will tell you how to remove it. or do what i did and just go figure out how to take it of...took me about an hour the first time. just make sure to take pictures so you can have a reference for when your putting it back together. it may seem daunting but its really not once you get into it.

IHateHacks · 02-24-2007, 04:39 AM

"Advice needed for how to remove all the spark plugs"

Is it turbo or non-turbo?

And if you are afraid of taking stuff off to get at the plugs, if you are replacing that blown head gasket, you're in for a rude awakening .

damdog05 · 02-24-2007, 05:31 AM

well, i went on the assumption that it is not turbo since they didnt make em in 86.5, but if its been switched you will have to remove other stuff

unkymurch · 03-02-2007, 01:08 AM

Any chance there are pictures or even a video clip of what to remove to be able to access the spark plugs. Taking BEFORE pictures is wise advice and I'll do that, but I'm afraid of taking or dismantling too much or maybe not enough.

Is not, perhpas I should make my own.

Mitchell

02-23-2007, 08:25 PM	#1
unkymurch Stock Join Date: Jan 2007 Location: Houston Posts: 19	1986.5 Non-Turbo with blown Head Gasket - Removing Spark Plugs Advice needed for how to remove all the spark plugs. I put my sputtering 1986.5 Supra with a blown head gasket in the garage until I figured out what to do. After just a few weeks, I tried to restart it a few days ago, but it was a NO GO. I was told to remove the spark plugs and cycle the motor to blow out the coolant that may have filled the chambers and then it would restart. I can see and touch three plugs but three are underneath all the mechanisms of the engine. What is the minimum I have to remove to gain access to the hidden three spark plugs? It's very intimidating too see how much has to be removed to get all the plugs out. Is there some free internet diagrams or procedures with pictures that would tell me how to do this? I have a Toyota Shop Manual but it is useless in explaining how to remove the spark plugs. Any advice and words of wisdom would be appreciated. Thanks, Mitchell Last edited by unkymurch; 02-24-2007 at 02:31 PM. Reason: Specify it was a Non-Turbo Supra

02-23-2007, 11:19 PM	#2
ddmcse 500whp yet? Join Date: Jun 2005 Location: CT U.S.A. Posts: 966	i would drain some motor oil to see if water comes out first before the oil oil floats ontop of water this will give you some kind of indication of how much of a blown gasket you are dealing with i wouldn't start it just for ha ha's __________________ 300+ RW HP Dyno run, jdm,mod turbo,3"exh,electfan,greddyboost Blown HeadGasket info My Supra KiXGaS

02-24-2007, 01:59 AM	#3
damdog05 12psi boost Join Date: Apr 2006 Location: Georgia Posts: 250	the mininmum youd have to remove is the throttle body. go here and it will tell you how to remove it. or do what i did and just go figure out how to take it of...took me about an hour the first time. just make sure to take pictures so you can have a reference for when your putting it back together. it may seem daunting but its really not once you get into it. __________________ My cars: 85 Trans Am- Ehhh- Gone 83 Rx7- Much Better- Gone 86.5 Supra- Love- Not Gone

02-24-2007, 05:31 AM	#5
damdog05 12psi boost Join Date: Apr 2006 Location: Georgia Posts: 250	well, i went on the assumption that it is not turbo since they didnt make em in 86.5, but if its been switched you will have to remove other stuff __________________ My cars: 85 Trans Am- Ehhh- Gone 83 Rx7- Much Better- Gone 86.5 Supra- Love- Not Gone

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02-24-2007, 04:39 AM	#4
IHateHacks 20psi boost Join Date: May 2006 Location: New Haven/Hamden Posts: 793	"Advice needed for how to remove all the spark plugs" Is it turbo or non-turbo? And if you are afraid of taking stuff off to get at the plugs, if you are replacing that blown head gasket, you're in for a rude awakening .

03-02-2007, 01:08 AM	#6
unkymurch Stock Join Date: Jan 2007 Location: Houston Posts: 19	Any chance there are pictures or even a video clip of what to remove to be able to access the spark plugs. Taking BEFORE pictures is wise advice and I'll do that, but I'm afraid of taking or dismantling too much or maybe not enough. Is not, perhpas I should make my own. Mitchell