1986.5 with blown Head Gasket - Removing Spark Plugs

IHateHacks · 03-02-2007, 04:57 PM

Take off whatever is in the way of the plugs, its not hard. Find the bolts/nuts that attach the parts, they will be either 10mm or 12mm, a few might be 14mm. Take off any hoses/vacuum lines that are in the way with channel lock pliers on the clamps. Disconnect any electrical connectors that are in the way. I only have pictures of a turbo tear down so I guess that won't help you. If yours is non turbo, you will need the air intake connector gasket available at any local parts store, most likely it will not be in stock so order it before you start dismantling. That's the pipe that the throttle body bolts to, its attached to the upper intake manifold by 4 bolts and 2 nuts.

Heres what you need-

Open the hatch and use that as a place to store the parts you take off and keep the bolts in order. Label the hoses with masking tape and a marker. Clean all the bolt threads with a wire brush and clean all the gasket mating surfaces with brake cleaner. Remember, these parts are aluminum and will be damaged easily so be careful if you have to scrape old gasket material off.

Just take your time, do not rush and you should be successful.

dcrusupra · 03-02-2007, 05:13 PM

Don't over tighten the bolts going into the intake manifold because they are aluminum, they will snap and make your problem much worse. Its not hard, just dive into it. There are 3 bolts on the y pipe (intake plenum) that the throttle body is connected to. Just take those off and make note where the vacuum hoses go. You might want to use some kind of extension for the bolts on the bottom of the intake plenum. They are a little bit of a pain but nothing that bad. And make sure you grab those otherwise they'll drop onto the lower intake manifold and you'll either have to be really good with an extendable magnet or take off the upper intake manifold to get to them. I've done this so many times I can do it in like 5 mins. lol.

IHateHacks · 03-02-2007, 05:19 PM

Those 4 bolts and 2 nuts should be torqued to 13 ft/lbs.

The proper name for that "y-pipe" is the air intake connector. Which attaches to the intake manifold with 4 bolts and 2 nuts. See the 6 holes in that gasket in that picture?

Even the throttle body uses 4 bolts, so I do not have a clue what part you are speaking of that uses only 3 bolts.

dcrusupra · 03-02-2007, 06:48 PM

Quote:

Originally Posted by IHateHacks

Even the throttle body uses 4 bolts, so I do not have a clue what part you are speaking of that uses only 3 bolts.

Lol sorry, 2 bolts 1 nut on each side of that y. I didnt think it thru before typing it.

03-02-2007, 04:57 PM	#1
IHateHacks 20psi boost Join Date: May 2006 Location: New Haven/Hamden Posts: 793	Take off whatever is in the way of the plugs, its not hard. Find the bolts/nuts that attach the parts, they will be either 10mm or 12mm, a few might be 14mm. Take off any hoses/vacuum lines that are in the way with channel lock pliers on the clamps. Disconnect any electrical connectors that are in the way. I only have pictures of a turbo tear down so I guess that won't help you. If yours is non turbo, you will need the air intake connector gasket available at any local parts store, most likely it will not be in stock so order it before you start dismantling. That's the pipe that the throttle body bolts to, its attached to the upper intake manifold by 4 bolts and 2 nuts. Heres what you need- Open the hatch and use that as a place to store the parts you take off and keep the bolts in order. Label the hoses with masking tape and a marker. Clean all the bolt threads with a wire brush and clean all the gasket mating surfaces with brake cleaner. Remember, these parts are aluminum and will be damaged easily so be careful if you have to scrape old gasket material off. Just take your time, do not rush and you should be successful. Last edited by IHateHacks; 03-02-2007 at 05:01 PM.

03-02-2007, 05:13 PM	#2
dcrusupra 500whp yet? Join Date: Aug 2005 Location: Plantation, Fl. Posts: 1,052	Don't over tighten the bolts going into the intake manifold because they are aluminum, they will snap and make your problem much worse. Its not hard, just dive into it. There are 3 bolts on the y pipe (intake plenum) that the throttle body is connected to. Just take those off and make note where the vacuum hoses go. You might want to use some kind of extension for the bolts on the bottom of the intake plenum. They are a little bit of a pain but nothing that bad. And make sure you grab those otherwise they'll drop onto the lower intake manifold and you'll either have to be really good with an extendable magnet or take off the upper intake manifold to get to them. I've done this so many times I can do it in like 5 mins. lol. __________________ New Rebuild My CarDomain

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03-02-2007, 05:19 PM	#3
IHateHacks 20psi boost Join Date: May 2006 Location: New Haven/Hamden Posts: 793	Those 4 bolts and 2 nuts should be torqued to 13 ft/lbs. The proper name for that "y-pipe" is the air intake connector. Which attaches to the intake manifold with 4 bolts and 2 nuts. See the 6 holes in that gasket in that picture? Even the throttle body uses 4 bolts, so I do not have a clue what part you are speaking of that uses only 3 bolts.