Intake Manifold Replacement
Thread Starter
Burning Brakes
Joined: Jan 2009
Posts: 871
Likes: 15
From: Shepherdsville Kentucky
Intake Manifold Replacement
I found a few threads that mention aspects of replacing the base plate, but nothing comprehensive. I can use the book, but if anyone knows of another source fill me in. Thanks! 
Safety Car
Joined: Jan 2004
Posts: 3,759
Likes: 8
Melting Slicks
Joined: Dec 2009
Posts: 2,231
Likes: 284
I don't know what the manual says about changing the oil & filter after the job, but do it.
Use a shop vac to clean out any particles that fall into the ports or the valley.
I like to pour 2 quarts of oil down into the valley to flush out any old coolant & particles that might be in there.
The key to a good job is keep the surfaces free from oil so the rtv will seal.
Use a shop vac to clean out any particles that fall into the ports or the valley.
I like to pour 2 quarts of oil down into the valley to flush out any old coolant & particles that might be in there.
The key to a good job is keep the surfaces free from oil so the rtv will seal.
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
To speed up reassembly I put bolts into ziplocs with labels as I disassemble.
Use care when handling the hard plastic vacuum hoses; if one breaks it can be spliced with rubber tubing.
To assure good RTV grip I roughen the china walls & mating intake base surfaces as well as ding the walls a bit. Two beads of RTV along the china walls seem to minimize the chance of a leak. I also trail a bit of RTV up onto the gaskets.
Once the base has come in contact with the fresh RTV it should not be moved laterally.
Once the base has been torqued to spec, let it stand at least 24 hrs for the RTV to cure.
Use care when handling the hard plastic vacuum hoses; if one breaks it can be spliced with rubber tubing.
To assure good RTV grip I roughen the china walls & mating intake base surfaces as well as ding the walls a bit. Two beads of RTV along the china walls seem to minimize the chance of a leak. I also trail a bit of RTV up onto the gaskets.
Once the base has come in contact with the fresh RTV it should not be moved laterally.
Once the base has been torqued to spec, let it stand at least 24 hrs for the RTV to cure.
