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S6 intake
https://slantsix.org/forum/viewtopic.php?t=10055
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Author:  gagolddust [ Sun Aug 08, 2004 4:37 pm ]
Post subject:  S6 intake

Ok. I should know this but I NEVER HAD to work on a slant 6 to much. Does the intake and the exhaust manifold have to come off together or can you take off just the intake?

Author:  guest [ Sun Aug 08, 2004 5:31 pm ]
Post subject:  removing sl6 manifold

I read in chilton manual that the intake can be removed byitself.
I think this is possible if the 2 bolts holding the intake and exhaust
together is not stuck to the manifold, otherwise the whole thing
has to come off so easier time to get the bolts off.

Author:  Pierre [ Sun Aug 08, 2004 8:09 pm ]
Post subject: 

There are 3 bolts, two on the drivers side of the carb, one on the other in the middle.

I don't think you can take them off seperately... it would be difficult. First you would have to get the 3 bolts binding the manifolds together off in one piece. Second, You'd have to fiddle with the triangular washers and find some way to remove them without taking off the exhaust.

Well, I guess you can leave the exhaust manifold hanging by the two outer studs.

Author:  FrankRaso [ Mon Aug 09, 2004 8:04 am ]
Post subject: 

It is possible to remove the intake manifold separately and leave the exhaust manifold in place. The largest problem you will run into is the separation of the two manifolds. The three bolts that hold them together are likely to be seized. Penetrating oil might loosen them up but probably a lot of heat from a torch will be the only thing that will work. They may have corroded quite a bit so that a little bit of torque might snap them off unless you are extremely careful.

Unless you will be putting the same intake manifold back on, you will need to change the intake/exhaust manifold gasket or else you could end up with a huge vacuum leak.

The only reason anyone would want to only remove the intake manifold would be to change to a different intake manifold. You will need to install a new gasket for a new manifold. Changing this gasket will mean you will have to take the exhaust manifold off anyway.

Save yourself a lot of grief and pull them off together. When the assembly is off, get a torch and heat the exhaust manifold until each bolt breaks loose. Reassemble with new bolts and use an antiseize compound on the threads to make the job easier next time.

Frank

Author:  Matt Cramer [ Mon Aug 09, 2004 2:45 pm ]
Post subject: 

If you've already got headers, this might not be too difficult. However, for the stock manifolds, trying to remove only the intake is likely to be considerably more trouble than trying to remove both manifolds at once.

Author:  73dart_swinger [ Mon Aug 09, 2004 3:40 pm ]
Post subject: 

i had no problem removing just the intake of my car. i found it far easier to just leave the exhaust manifold on the car instead of trying to get the bolts loose that connect the manifold to the head pipe. after i got the bolts broke loose (and broke) i just pulled the intake and exhaust away from the head and pulled the intake straight up and off. it saved me from probably breaking the 2 bolts that hold the exhaust pipe to the exhaust manifold.

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