Carb/Intake Qs
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Carb/Intake Qs

  1. #1
    Senior Member 74glencoe's Avatar
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    Default Carb/Intake Qs

    So I hauled my boat the 120+ miles just to get it wet for the first time this season, Launched and everything was awesome for about an hour, Then intake gasket went bad.

    So I shut it down, paddled back to the docks, and commenced to drinking heavily. Long story short, when I brought it home today and took the intake off I found that whoever put it on used no gaskets, just rtv


    So my first question to you guys is what is the best intake gaskets for the olds 455 (torker intake, cast iron G heads)?
    Second, should I use a little RTV or somthing else on the face of the gaskets?
    Third, should I use the valley pan again? I know that it keeps hot oil of the bottom of the intake, but im more worried about reliability of the gaskets than the little heat it will make on the intake.

    I also noticed the spark plugs were a little white, so I tried to pull the jets in my edelbrock, the two on the right came right out, but the two on the left are siezed/corroded stuck, any tricks to getting them out?

    Lastly, is there anything else I should be looking at while I have the valley pan and the intake off? I have already verified all the lifters are moving, drained the oil, replaced it with diesiel fuel, and checked compression on all cylinders.
    Boating is nothing like cocaine, boating is much more addictive and results in bigger parties!

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    First I'd get the heads machined and resurfaced (doesn't happen too often but I have seen instances of metal warping, but thats typically with Aluminum heads) then if your using an Edelbrock intake, I'd go to them and find a gasket kit that suits your purpose. Olds stuff is getting harder to come by but a good place to get the down low on it is from Joe Mondelo . He's an old school Oldsmobile guru and if your heads are fine and want to get a different intake manifold go that route.

    As far as the Carb goes I am not too up to snuff on rebuilding Carter/Edelbrock carbs, so I am not much help there. That aside once your sure the intake gasket fits and there's no potential of if leaking due to warping over the past 36 years, I'd stick with running the valley pan, it's a good piece of insurance.
    Last edited by BPOaddict; 04-18-2010 at 09:56 PM.

  4. #3
    Senior Member 74glencoe's Avatar
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    Default Mondello=no

    I talked to mondello one time, and I am done with them, thanks for the feedback though BPO
    Boating is nothing like cocaine, boating is much more addictive and results in bigger parties!

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    Senior Member EVILFORCE's Avatar
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    It has been a long time since I did a Olds but I think that is your gasket. No paper just a raised, stamped metal gasket. You put sealer around the water ports and silicone at the ends.
    No Fool Like A Old Fool is there?

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    check with Ray (Moneypit) here on the boards...he has put together a few Olds engines recently & can tell you what to do...he wont steer you wrong! ...just sayin' my .02 cents

    FastRat

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    Senior Member 74glencoe's Avatar
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    Quote Originally Posted by FastRat View Post
    check with Ray (Moneypit) here on the boards...he has put together a few Olds engines recently & can tell you what to do...he wont steer you wrong! ...just sayin' my .02 cents

    FastRat
    Never thought of ray,but he does seem to be kind of a resident olds guy. I will send a pm his way.
    Boating is nothing like cocaine, boating is much more addictive and results in bigger parties!

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    Senior Member Josh@JBP's Avatar
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    The first question i ask when a customer calls about oil in the water on an Oldsmobile is what type of intake and gasket is being used. Aluminum intakes on Oldsmobile's were designed to use a paper gasket, and are notorious for leak issues when the steel valley pan "gasket" is used. Get some 1/16" thick paper gaskets and seal around the water ports with Right Stuff sealant (or RTV). Also I'd recommend using Right Stuff in place of the end seals.

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    Senior Member 74glencoe's Avatar
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    Thanks josh, i will pick up the right gaskets and some right stuff
    Boating is nothing like cocaine, boating is much more addictive and results in bigger parties!

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    I've had the intake off a bunch of times on my Olds. Here's what I've learned. You should use the E-brock or Mr.Gasket gaskets on the intake. Don't run the turkey tray or the rubber end seals. Use a bit of gasket shellac around the intake ports, and use good quality RTV around the water passages. Don't use RTV at all around the intake ports... gasoline will cause it to melt eventually and you'll suck those pieces into the engine. The only place you'll want RTV is around the water passages. You'll need a fairly large bead of black RTV for the end seals, but it won't suck in and leak like the rubber ones eventually do. Make sure the RTV is completely dry before you fire it up.
    Hope that helps,
    Tim

  12. #10
    Senior Member 74glencoe's Avatar
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    I ordered a set of mr gaskets, a set of paper gaskets, and a set of fel pros. I also had someone mention to me that the timing cover can corrode behind the water pump block off. I checked mine, some corrosion but no path for water to the timing cavity.
    Boating is nothing like cocaine, boating is much more addictive and results in bigger parties!

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