This can be a bit more difficult on inline engines, since you'll have some trouble getting to the bottom of the manifold, but it can usually be done. However there are some "Do's and Don'ts" that every professional auto tech follows, mostly because they have had to redo a job in the past, maybe several of them. Lastly, the intake manifold often seals the top of the engine, and the end seals directly beneath the manifold can fail and allow oil to trickle out of the engine. Don't worry too much about leaks underneath the manifold on a V-configured engine; they might suck in a bit of oil, but net airflow through the engine remains about the same since you're only drawing gases that make it past the piston rings. Naturally, if this seal were to be worn out or damaged, then coolant fluid will be able to seep through the seal and leak out. There's nothing you can add to the fuel tank or anywhere else that will seal a vacuum leak, since on air goes through. HM&FC 2" x 50' Black Fiberglass Exhaust Header Pipe Wrap Motorcycle Fiberglass Heat Shield Tape Glove Included. There is a seal between the engine head and this manifold, which is intended to prevent cooling, oil or air leakage. "Stop-leak" additives and high-mileage oils typically contain one of several combinations of hydro-treated napthenic oil -- heavy mineral oil -- and some type of ether blend. Rarely will the solution prove as simple as just pouring something in your oil or gas tank, but there is one case where it might. You can buy something like K-Seal for just $20 or so, and other products may be a little more expensive but have different effects overall. Intake manifold leaks are both insidious and irritating; insidious because they can mimic a number of other problems, and irritating because you may have to tear half the engine apart to deal with them. A worn out or damaged intake manifold gasket may cause this coolant to leak out of the engine. #4. 4.7 out of 5 stars 43. Intake manifold leaks are both insidious and irritating; insidious because they can mimic a number of other problems, and irritating because you may have to tear half the engine apart to deal with them. And that's not good. Here's the tricky part: after you lay the bead of silicone down, you'll need to wait for a minute or two for the silicone to "skin over," or dry to the touch. The intake manifold gasket keeps the coolant sealed inside the engine too. With the engine running and at idle, hold the can about 3 inches from the suspect area and give it a one-second blast of starting fluid. There are two, perhaps three, places where an intake manifold can leak. It doesn’t appear to be related to ring seal. Then, you'll want to disconnect the ignition coil or coils, and give the starter three or four five-second bumps over the course of two minutes. Intake manifold gaskets are responsible for sealing the intake manifold against the cylinder head (s). There are three basic types of coolant stop leak product: products that use metal particles -- essentially copper or aluminum dust -- to seal leaks, those that use expanding pellets -- like Bar's trademarked Rhizex -- and those that use sodium silicate, or liquid glass. Intake manifolds can leak in two ways, either through coolant leaking out of the intake manifold gaskets, or air leaking into the manifold outside of the normal air passageways. The quickest way to track down a manifold air leak is with a can of ether starting fluid. Apex AMS3595P Intake Manifold Gasket Set . Blue Magic 1008 Liquid Glass Metallic Seal-Up - 11.4 oz. Rowe studied engineering, philosophy and American literature at Central Florida Community College. Installing an intake manifold is very simple as far as the level of complication involved in general mechanics. You’re seeing this ad based on the product’s relevance to your search query. The upper part of the engine is covered with a lid that is called an intake manifold. Tube. If the plastic under the sealing bead on the intake manifold gasket is eaten away, the gasket can’t hold a seal and will leak. Coolant leaks. But metal-suspension sealants don't generally do as well at sealing gasket leaks as pelletized products do, because the pellets themselves are more like the gasket material than metal. There's a problem loading this menu right now. User Info. Stop Leak won't fix a gaping hole -- it only causes the rubber to swell by around 10 percent or less -- but it is worth a shot if you've got leaking end seals. Apart from sealing engine vacuum, certain intake manifold designs will also seal engine coolant. Prime members enjoy FREE Delivery and exclusive access to music, movies, TV shows, original audio series, and Kindle books. 09-06-08 05:30 PM - Post# 1516666 I tried installing my new intake manifold today and it gave me problems like I have never had before. 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