sparkplug removal??

89supra884

New Member
Apr 8, 2008
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chicago
i can get to the first 4, but obviously 2 are under the throttle body. how exactly do i remove the throttle body.

thanks
 

89Joe

POTATOES!!!!!!!!!!!!!!!!!
Jul 22, 2005
300
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16
Missouri
Unfortunately there is a little work involved in changing the plugs and wires. You have to take off the intake assembly and throttle body to gain access to the plugs and wires beneath the throttle body as well as the other in the back.

It's a fairly straight forward process. You shouldn't have to adjust the throttle unless you somehow took off the throttle position sensor or messed up the throttle linkage. Take it slow and remember what goes where. I'd also like to suggest checking out the TSRM.

http://www.supramania.com/forums/showthread.php?t=63

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/

There are 4 bolts that connect the throttle body to the intake manifold. Once those are removed, you have to take off coolant lines and vacuum lines, remember what goes where! You also have to disconnect the TPS(throttle position sensor).
 

SupaMan

Want The Boooooossttttttt
Oct 12, 2006
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Cape Coral,Florida
89Joe;1266890 said:
There are 4 bolts that connect the throttle body to the intake manifold. Once those are removed, you have to take off coolant lines and vacuum lines, remember what goes where! You also have to disconnect the TPS(throttle position sensor).


you dont have to disconnect anything off the throttle body except the metal two into one oil tube coming off the valve covers you can carefully set the TB to the side with the other lines attached.

and the throttle linkage you can just pull off the TB.
 

89Joe

POTATOES!!!!!!!!!!!!!!!!!
Jul 22, 2005
300
0
16
Missouri
SupaMan;1266976 said:
you dont have to disconnect anything off the throttle body except the metal two into one oil tube coming off the valve covers you can carefully set the TB to the side with the other lines attached.

and the throttle linkage you can just pull off the TB.

I found it easier to just get it all out of the way. But we all have our methods.
 

SupaMan

Want The Boooooossttttttt
Oct 12, 2006
1,101
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Cape Coral,Florida
89Joe;1267074 said:
I found it easier to just get it all out of the way. But we all have our methods.

its still out of the way you just set it on top of the intake y pipe the hoses are flexible enough.

to each his own tho :)
 

kHaNg

Like FAtHer Like SoN
Apr 17, 2007
177
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16
Mass
yeah and dont break the throttle body gasket when u unbolt those 4 bolts
 

AJ'S 88NA

New Member
Jul 26, 2007
2,419
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Florida
Just easier to not worry about getting everything back in place to leave it connected to the lines and move it off to the side. The stock TB gasket is mostly metal with a rubber sealing gasket, mine is the original one and I've never broke it and it still seals.