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Unread 04-30-2010, 10:06 AM   #1
DeadPhish
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1977 CJ7 
 
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gaskets & RTV on 304 edlbrk intake upgrade

I have researched and found mixed results on here about the use of the various available gaskets and RTV used when upgrading from the stock 2 barrel intake to the edelbrock performer. I used a new metal valley pan, removed the front and rear rubber pieces and replaced with generious portion of RTV -both intake and block side. I circled the water jacket inlets on the block with RTV then placed the valley pan down and aligned holes. next I put rtv around water inlet holes on the valley pan then placed intake on block/heads and torqued to specs. My question is was I to put RTV around the exuast/intake ports holes as well?
http://i349.photobucket.com/albums/q...upgrade037.jpg

<a href="http://s349.photobucket.com/albums/q384/jdchappell/?action=view&current=intakec-carbupgrade038.jpg" target="_blank"><img src="http://i349.photobucket.com/albums/q384/jdchappell/intakec-carbupgrade038.jpg" border="0" alt="Photobucket"></a>


also why would this be blocked off

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Last edited by DeadPhish; 04-30-2010 at 10:38 AM.. Reason: picture
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Unread 04-30-2010, 04:41 PM   #2
DeadPhish
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Need some help here before I go to far
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Unread 04-30-2010, 05:01 PM   #3
rodjr
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perfect, i never use sealer on intakes. the gaskets have water jacket cutouts on both ends so u can use them on both sides (u dont need a left and a right.)
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Unread 05-01-2010, 05:32 PM   #4
DeadPhish
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so you think I will be ok? why is one of the water ports on the intake blocked off?
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Unread 05-01-2010, 06:12 PM   #5
rodjr
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thats how it should b, look at the stock intake it doesnt flow through on that end either. it may have an opening in it but it doesnt go anywhere. the heads and gaskets have water jackets on both ends so they can b used on either side of the engine, but water only flows through the one end. if the heads only had a water jacket on one end u would have to buy a left head and gasket and a right head and gasket. everything u did looks good to me.
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Unread 05-01-2010, 07:52 PM   #6
Drednot
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Is there a reason you dont want to use the proper,good quality gaskets?
Slathering on RTV in a non-emergency is kinda ghetto unless it's how it came from the factory.
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Unread 05-01-2010, 09:02 PM   #7
alex211
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RTV works way better than the rubber gaskets on the ends of the manifold in small block chevies, just saying.
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Unread 05-02-2010, 02:25 AM   #8
Drednot
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Why is that, if I may ask?
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Unread 05-02-2010, 07:25 AM   #9
alex211
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The rubber gaskets love to slip out and then you have a huge oil leak.
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Unread 05-02-2010, 11:06 AM   #10
Drednot
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Ah, that.
Thats actually a symptom of excessive blowby from worn rings or PCV issues.
They are being blown out by pressure. Or if you fumble the install and they move and you don't catch it.
They don't slip out on their own if they are prepped and torqued right.
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Unread 05-02-2010, 11:20 AM   #11
alex211
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Quote:
Originally Posted by Drednot View Post
Ah, that.
Thats actually a symptom of excessive blowby from worn rings or PCV issues.
They are being blown out by pressure. Or if you fumble the install and they move and you don't catch it.
They don't slip out on their own if they are prepped and torqued right.
That makes sense, I prefer RTV though because it eliminates any chance of the rubber gasket failing and seals up perfect every time.
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Unread 05-02-2010, 11:38 AM   #12
DeadPhish
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I did a little research and the majority of the people dont use the rubber gasket, the directions from edlebrock say to remove it as well. however the directions that came with the new valley pan gasket say to put the rtv around the intake holes. I did not do this and was wondering if anyone else had trouble after they did it this way.
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Unread 05-02-2010, 12:45 PM   #13
kmm
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I did exactly like DeadPhish and didn't use the rubber gasket supplied with intake becouse instructions reccomended not to use these. I did do like the instructions said and used a small amount of RTV around intake holes though. Everything is tight and I haven't had a single problem. I did use a generous amount on the ends to compensate for not using the gasket.
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Unread 05-02-2010, 03:12 PM   #14
Curt Reinhardt
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I installed the Edelbrock gaskets, Fel-Pro valley pan and black RTV front and back according to Edelbrocks instructions and it worked perfectly.
intake-installation.jpg  
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Unread 05-02-2010, 03:25 PM   #15
kmm
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Under installation #3 it says we advise eliminating end seals and use RTV instead? #5 reccomends a thin bead of RTV around water ports and intake?
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