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Old 01-04-2013, 07:57 PM   #1
dandy505
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Default Gasket Sealant for small hole in intake manifold gasket?

Hi Saturn fans,

Is there any chance I could have success using a spray type gasket sealant (such as Permatex High Tack Spray-a-gasket sealant) to "fix" a small vacuum leak with my intake manifold gasket? I have a 2002 Saturn S series sedan 3rd generation SOHC.

Anyone experience any success or failures trying this approach that they wish to share? I wish to make an informed decision prior to attempting what perhaps could be argued as a lazy fix.

Any chance this could seal a vacuum leak? I know the vacuum is pretty strong so it would likely have to be pretty thick and strong stuff that could withstand the temperatures of the intake manifold. would I be wasting my $ on this attempt? If not, what type of spray (need spray or too difiicult to reach as it is underneath) If I can get away with not replacing the intake manifold gasket I'll take it.

Also, I assume I would not do this with the engine running or it could suck the stuff in and create a mess.
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Old 01-04-2013, 08:59 PM   #2
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Default Re: Gasket Sealant for small hole in intake manifold gasket?

Sounds like to me, you would be wasting your money. I guess you could try it, if you need a VERY temporary fix to transport it a couple miles to a mechanic or something.

But definitely, no guarantees.
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Old 01-04-2013, 09:32 PM   #3
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Default Re: Gasket Sealant for small hole in intake manifold gasket?

Well, car still drives fine. just idles at 2000rpm. throwing some parts at it to no avail and then a diagnostics from dealer indicated intake gasket leak.

I'm beginning to think I will be buying a gasket and attempting replacement myself then. Thankfully there is great info on this site + richpin videos to guide me. It's gonna have to be blood, sweat and tears (and some cursing) b/c I am not forking out $500 to the dealer to have it done.
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Old 01-04-2013, 09:35 PM   #4
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Default Re: Gasket Sealant for small hole in intake manifold gasket?

I have had good luck with Permatex (orange, gray, or black) for this application. If the surfaces and gasket are first cleaned of all oil and dirt with soap and water (or first with mineral spirits, in extreme cases), and then with acetone, the Permatex should hold well, and will likely last the remaining life of the car. Use it liberally in the area of the break in the gasket. Allow it to set up thoroughly before using the car. 12 to 24 hours is a good time to wait, though it usually cures a bit faster.

Unfortunately these gaskets are special-order only, either by local vendor or by eBay or Rock Auto, and so you have to wait for the gasket before you will be able to drive your car, though AutoZone is pretty good about shipping parts quickly to your home if you order online.

At any rate, if you need a fix NOW, contrary to what other say, the Permatex repair will likely last a very long time. You can then order the gasket and keep it at hand in a cool dry location for when it is needed. If AutoZone says that they'll ship it next-day, though, probably just go that route.

Don't spray things into the manifold. You don't want that sucked into the engine, and if there's oil present, it won't stick, anyway.
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Old 01-04-2013, 10:03 PM   #5
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Default Re: Gasket Sealant for small hole in intake manifold gasket?

Quote:
Originally Posted by dandy505 View Post
throwing some parts at it to no avail and then a diagnostics from dealer indicated intake gasket leak
Why? Fairly well known that the robot putting the 3rd gen SOHC's together was drunk and put the IM gasket on wrong on most of them. It's just a matter of time before they leak.

Crappy job to be doing at this time of year.
Quote:
It's actually was very easy and fast. Here's what I did:
1. Drain engine coolant.
2. Remove air inlet tube/resonator assembly, then disconnect fresh air hose at cam cover, lift resonator upward to disengage from engine.
3. Remove PCV hose.
4. Disconect battery for safety (when you removing intake manifold bolts you might accidently toch positive cable on starter... I did) also you'll have to do it anyway to erase codes.
5. Remove fuel line bracket bolt (do not release preassure)
6. Remove intake manifold support bracket to block attaching bolt.
7. Remove intake manifold attaching nuts.
8. Remove intake manifold and replace gasket.
9. Reverse procedure to install. Tighten intake manifold attaching nuts to specifications in sequence...

UPPER SIDE
.. 5 2 3
7 4 1 6
LOWER SIDE
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Old 01-04-2013, 10:55 PM   #6
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Default Re: Gasket Sealant for small hole in intake manifold gasket?

I have accomplished what you wanted to do before with "Right Stuff" gasket maker.

I Put it in the area to seal & with a wet finger massaged it into the area that needed it. Let it dry, shaved off the extra bits & then made a nice thin layer again & left that one. Held up for years like that.

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Old 01-04-2013, 11:57 PM   #7
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Default Re: Gasket Sealant for small hole in intake manifold gasket?

^^^^^ You did that specifically on a gen-3 SOHC, with a known-to-be-wrinkled intake manifold gasket?
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Old 01-05-2013, 01:00 PM   #8
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Default Re: Gasket Sealant for small hole in intake manifold gasket?

thanks all!
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