SBC intake manifold will not stop leaking? - Page 2 - Hot Rod Forum : Hotrodders Bulletin Board
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  #16 (permalink)  
Old 04-28-2012, 11:06 AM
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Smearing rtv on a spot that is already leaking is a hack job...Its like painting over a prior paint job with out prepping the surface to bond the new paint.
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  #17 (permalink)  
Old 04-28-2012, 12:33 PM
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I like the vacuum idea if you can keep from sucking sealer into the engine.
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Old 04-28-2012, 03:48 PM
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rtv

I think we all have had a leak after a fix at least once. You might think you had it clean but maybe not. After wiping with brake clean take a clean dry rag over it again. Then take a piece of blue painters tape and touch the mating surface, if the tape sticks your good to go with the 1/4 in bead of rtv. Don
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Old 04-28-2012, 07:52 PM
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Thanks for all of the great input and ideas. I think I will try the vacuum method first and if it persist then I will apply every remedy mentioned! All together. lol I just hate dropping $60 on a gasket set every time this happens! Not to mention that it is a pita (although I have gotten good at it) lol
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Old 04-28-2012, 08:05 PM
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There are different types of RTV. I use the High Temp adhesive type RTV, it's black and works very well.
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  #21 (permalink)  
Old 04-29-2012, 08:09 AM
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You can cut a couple of long bolts of the proper thread and use them as alignment pins. I have done this in the past on hard to install intakes. In most instances you will only be able to put them on one side due to the angle the bolts go in at but it can really help, especially if you are working alone.
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  #22 (permalink)  
Old 04-29-2012, 08:26 AM
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Brylcream ?

Like the old Ad, A Little dab will do you, His cars were always show quality when he sent them out, wipe off the excess when he couldn't hear the whistle with his stethescope
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  #23 (permalink)  
Old 04-29-2012, 08:28 AM
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Quote:
Originally Posted by T-bucket23
You can cut a couple of long bolts of the proper thread and use them as alignment pins. I have done this in the past on hard to install intakes. In most instances you will only be able to put them on one side due to the angle the bolts go in at but it can really help, especially if you are working alone.

Great idea! Man...The stuff you learn after the fact! Will ad this to my list of to do's when/if I end up pulling it again. Thanks
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  #24 (permalink)  
Old 04-30-2012, 04:55 PM
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the vortec intake gaskets are reusable if they haven't been on the engine for 50k miles, Don't waste your time trying to suck RTV into the leak, you will never get the old RTV clean enough for it to stick, just pull the intake and do it right.
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Old 04-30-2012, 05:04 PM
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Funny , last time I put my intake on , I had a small leak at the back , cleaned the area w/ alcohol , forced a little silicone in the offending spot , stopped the leak [that was 2 years ago & it's still dry !!

dave
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  #26 (permalink)  
Old 05-01-2012, 05:48 AM
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you got lucky.
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Old 05-01-2012, 05:37 PM
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Quote:
Originally Posted by Jim Rockford
you got lucky.
X2 Very lucky.



Cole
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