Rotary12Ahead

Hello 1984 GSL bone stock. I have coolant pooling on top of engine intake side im suspecting the crusty seals for the intake manifold coolant passages. My question is can the intake manifold be taken off without touching emissions or carburetor. Comes out as one piece? The car starts up in warm and cold weather and the carb is in great shape condition. So i dont want to touch anything.

Also I have some freeze plugs that were recommended to plug said coolant passage. Thats what im planning on doing. New seals are hard to come by? Or should I plug it so its one less thing that needs to be addressed in the future

t_g_farrell

iTrader: (1)

You can take the intake carb off as one piece maybe but it will be a lot easier to at least unbolt
the carb and put it aside then remove the intake.

Installing the freeza plugs is a way to permanently block the passages and to prevent coolant
in the intake which would cool the mixture. BTW, the plugs sometimes still leak a bit so installing
the orings is still recommended.

Rotary12Ahead

So better the unbolt carb from intake removingbwhatever needs to be dosconnected keep the rats nest intact? Would that be the best time to install this header I have?

t_g_farrell

iTrader: (1)

Yep

Jeff20B

iTrader: (13)

An active ACV port brings a lot of exhaust heat into the intake manifold. All 81-85 US-spec 12As had them. If you need to keep emissions, you must keep the ACV port open and you must keep the coolant ports open as well.

Rotary12Ahead

Pure madness im trying to make this work with street cleaning coming around every 7 days haha. But next week is a bye week so I have a 2 week window. The exhaust is completely stock I have a racing eat type header and resonator. I want install that with supplied gasket and get a weld nearby shop. My split air pipe has rusted off the cat and i want them out of there ASAP. Are the exhaust bolts and heat shield a pain to get off? Im having a hard time finding diagrams for manifold and other components. I have check out foxed.ca and others maybe im not looking hard enough.

Any special tools i will need? I read i can bend a wrench to get at the carb bolts?


Thanks for advice

j9fd3s

iTrader: (3)

this is a pretty easy fix, once you've done the first another could be done in a couple hours.

i think its easier to just leave the carb on the intake, myself, but up to you.

i just pop the 2 fuel hoses off, remove the throttle cable, and then you're a few vacuum hoses away from unbolting the whole intake in 1 piece.

KansasCityREPU

iTrader: (9)

I also take it off as one unit. Remove the 4 intake bolts and 2 nuts from the exhaust side. Then remove a couple of rats nest solenoids to get to one of the bolts that holds on the rats nest spider, remove the fuel lines, tilt the carb enough to remove the cables and misc electrical connections.

Take plenty of pics before. Like has been said, once you do it once, it's a learning experience and get easier.

Rotary12Ahead

Sweet! Thanks guys!