Intake Gasket this weekend L98
Safety Car
Joined: Jan 2001
Posts: 4,387
Likes: 691
From: Boise ID
Re: Intake Gasket this weekend L98 (csc67)
Did this for the first time this past spring. The biggest piece of advice I have is to label everything, electrical connectors, bolts, and vacuum lines! What seems simple during disassembly can get confusing during assembly. Speaking of vacuum lines, you will probably have to replace some of these as they are pretty brittle by now.
Burning Brakes
Joined: Nov 2000
Posts: 1,040
Likes: 2
From: BowlingGreen KY
Re: Intake Gasket this weekend L98 (csc67)
Make sure that the seal surfaces are very clean,(with alcohol) before you put the intake back on. This will prevent any leaks. Use permatex 2 on the intake bolts. :cheers:
Safety Car
Joined: Jun 2000
Posts: 4,870
Likes: 25
From: Long Island, NY
Re: Intake Gasket this weekend L98 (csc67)
Make sure you have the full gasket kit and all the correct tools. You will need the Torx bit set.
Other than that it is pretty straight forward deal. I did mine in April.
Email me if you have any questions.
Vic
Other than that it is pretty straight forward deal. I did mine in April.
Email me if you have any questions.
Vic
Burning Brakes
Joined: Sep 1999
Posts: 786
Likes: 31
Cruise-In II Veteran
Re: Intake Gasket this weekend L98 (csc67)
Don't start the engine for at least 24 hours after you button things back up. This will allow the silicon sealer on the ends of the manifolds to set up properly. The manufacturer says you can start the engine right away. Don't believe it! There is a good chance you will be tearing into the thing again real soon if the silicon doesn't set.
Racer
Joined: Sep 2000
Posts: 402
Likes: 0
From: Beaverton OR
Re: Intake Gasket this weekend L98 (Wildride)
strongly stand behind the above stated. DO NOT START THE ENGINE FOR 24HRS. other things to say are it might not be a bad idea to get the standard abrasives delux port kit & clean up some burrs in the lower & reshape the exit into the head a little larger. also port the plenum while your at it, definaity free hp there. only other thing is use something like brake cleaner, alcholol or whatever before you lay the gasket. also tacking them with smears..very very light smears of silicone isn't a bad idea. if no one has said it yet i will DON'T use the cork, don't don't don't. just use high temp rtv to seal the front & back. did mine awhile back and it sealed wonderful. also isn't a bad time to do the fuel pressure regulator..make sure you put the dime in there !! as it sits you can get a good 20hp or so if you take the time to do a little porting. email me if you'd like pics of how it should look :chevy
Melting Slicks
Joined: Aug 2000
Posts: 2,009
Likes: 1
From: Springfield MO
Re: Intake Gasket this weekend L98 (importeater)
Use high temp rtv and do not run the engine without letting it setup...as it was reccomended in earlier posts (24hrs seems a little excessive) but i do have to tear mine apart this weekend to fix a leaky rear intake seal that i didn't do right the first time a month ago. :smash:
Good luck to ya
Good luck to ya
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Drifting
Joined: May 2001
Posts: 1,295
Likes: 2
From: Surprise Arizona
Re: Intake Gasket this weekend L98 (TA)
I did mine this summer. Take some digital pics if you can of how things come apart. It's a huge help on reassembly. All the above advice is correct. Use the FEL PRO gasket set, it's the best. Also when you put the intake back on set it down EXACTLY where it is going to stay. You CAN NOT move it to align the bolts or the silicone will not seal. This was stressed to me strongly.
I used a very light coat of silicone around all the water ports between the gaskets and heads. Then install the manifold bolts through the gasket in to the heads temporarily so the gaskets are in exactly the correct place, let the silicone set up a few minutes to keep the gaskets in place. Put another light coat of silicone around the water jackets on the manifold side also. When you remove the bolts the gaskets wont move and you can set the intake down on the heads perfectly with no alignment needed.
Take a day to do the porting work, you'll be glad you did. The extra pony's can be felt. It is sooo worth it.
I used a very light coat of silicone around all the water ports between the gaskets and heads. Then install the manifold bolts through the gasket in to the heads temporarily so the gaskets are in exactly the correct place, let the silicone set up a few minutes to keep the gaskets in place. Put another light coat of silicone around the water jackets on the manifold side also. When you remove the bolts the gaskets wont move and you can set the intake down on the heads perfectly with no alignment needed.
Take a day to do the porting work, you'll be glad you did. The extra pony's can be felt. It is sooo worth it.
Racer
Joined: Jun 2001
Posts: 377
Likes: 10
From: Chicago IL
Re: Intake Gasket this weekend L98 (Paul G)
Also, if you don't have one already, make the investment in a distributor wrench. If it is like my 85, really tough to get clearance with a regular wrench set.
