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08-08-2007, 10:30 PM
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intake vac leak
howdy. i have had no luck with this engine. the problem NOW i am having is i have put two intake gaskets on the intake and still have a big leak coming from the side of intake. first set of gaskets i used Mr. Gasket on it and it leaked. i sprayed carb cleaner on the intake and rpms went up. next set of gaskets i used fel pro, hi tack gasket and silcone plus washers on intake and still leaked.
 is there any solutions with out taking off the intake i want to find the solution my truck has been down two months and it is my dailey driver. it is a 350 bore 40 over 882 heads and edlebrock intake. i am tried of geting rides from people. one dude said i need to take off 60 thousands or somethin from the intake thanks.
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08-08-2007, 10:51 PM
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Hmmm. If the block was decked and the heads milled, the intake might be bottoming out on the front and rear seal areas before the gaskets on the sides make a good seal. Other than a really badly warped intake, I don't have any other ideas.
Can you get a thing end gasket between the intake and block when it's sitting on standard gaskets? or is the intake hitting the block?
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08-08-2007, 10:51 PM
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Is the intake warped? Are the heads machined down for high compression? If yes, then the intake probably should be machined down a little... I feel bad that your DD is out of service, I know how that feels.
 At least with me it was only 2 days... edit: wow jmark must've been making his post at the same time I was, lol...
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08-08-2007, 11:05 PM
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Quote:
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08-09-2007, 12:45 AM
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the intake was on my 305 before i did motor swap and i had no problems. so i don't think the intake is warp. the heads where milled i little to clean them up a little.
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08-09-2007, 12:48 AM
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Someone else wrote the first part of this article. I wrote the last part beginning with the word "occasionally". Maybe it will help you sort it out, although the manifold will have to come off.
http://crankshaftcoalition.com/wiki/...d_Vacuum_Leaks
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