If so, what kind (ie, name brand)? stock (32mm?) Don't like to use it on the intake gaskets. It is best to use a copper spray sealant. Most cars use a type of engine known as “fuel combustion,” which basically means that they get their main energy from a series of mini-explosions powered by gasoline. ThirtySixHundred #882584 Fri Sep 14 2012 11:54 AM. Equally important, the intake manifold and head surfaces must be clean (no grease, oil or coolant film) and dry. Always done it this way and never had an intake oil leak. I use the Indian Head Shellac on … Furthermore, do you use sealant on cork gaskets? I will be replacing the Intake and Exhaust Manifold gaskets - should I use some type of gasket sealer? I went ahead and got the Fel-pro exhaust/manifold gasket and my neighbor who has a CJ5 came down to see what was going on. Posts: 21,446. We could just as easily name this part “sRaging Opinion in a Small Tubes” given this is the one area where everyone seemed to have a different opinion. RTV, other sealants or adhesives should not be used around the coolant or intake ports on carrier-style gaskets. Soon, will be putting on the intake manifold. Thanks 999MP-A7007 or equivalent . After all you are only holding back less than 20 psi in any instance. Start in the middle and half tighten the bolts outward then repeat to spec (again working from the middle out). FEL-PRO Part # MS93771. It is a thin layer of sealant, apply to the head and the intake with your gasket between and put together.That should help with coolant leakage around the gasket, but the gasket itself can still become damaged over time by the exposure to water. 2,933 posts. Can I leave it out, or will this lead to problems. manifolds and 40IDAs. Sealant. All the intake manifold gaskets leaked, some more so than others, and tightening the bolts did not help much. This is a photo of the intake gaskets that come with the set: If you gave the nuts any kind of respectable and even torque they should hold just fine without leaking. PLEASE click ACCEPT so that I may get credit for my work, thanks. Normally one does not use a sealant to remount the intake manifold. If so, what type should i use or avoid? Head gaskets, depends on whether or not it has a pre-applied sealant coating. Once the gasket on the intake/exhaust manifold is set you should have anywhere from 15-18 steady needle inches of vac if not more. But it's really messy stuff. Dellrose, TN. Also, the carb kit that I have came with two identical gaskets that appear to go between the carb and intake manifold, but I don't see the need for two of them. Never put sealant on manifold gaskets,if anything a smear of grease. Well, each to … with copper spray and rtv set up time the gasket should remain in place. An intake manifold gasket is a flexible, fitted part of a car engine that helps prevent air from leaking out during fuel combustion and helps regulate chamber temperature. Re: Sealant on manifold gasket? Sometimes you put a small dab in the corners where it bolts to the heads on V-6 or V-8 engines, right at the "v" where the manifold meats the front and back of the head. With Felpro "Printoseal" intake gaskets, (with the blue sealing rings), ... is it ok to use Hylomar sealant? It's very rare that you would use any sealer on intake gaskets. clamps) of a Pierce manifold on my Spitfire, and was wondering if I should apply gasket sealant? You should check with the Auto Parts Store where you purchased, as some "Fel-Pro" Gaskets do not need sealant, but it will not hurt either. Engine machine shops have the capability to resurface the manifold. I bought an edelbrock gasket set with: Intake Manifold, Exhaust Manifold, Valve Cover, Head, and Thermostat Housing Gaskets. Should I use a sealant on intake manifold gaskets? The Hayne's repair manual for my 1990 F150 makes no mention of using any gasket sealer on the intake manifold gaskets, except at the corners. New intake manifold bolts are recommended. I am about to fit my new EFI intake manifold and am unsure of the best sealant to use. Cork/Composite Gaskets. Was thinking of spraying them with Permatex High Temp Copper spray sealer- Yay or Nay? He noticed I was not going to use any sealant on the exhaust gasket or the intake manifold and just install them bare with anti-sieze on the bolts and said I should have used the gold heat sealant on both of them. is it ok to use sealant instead of replacing a gasket on a slipped intake manifold gasket. Most exhaust manifold gaskets either come with their own sealant (like Fel-Pro's do with the silver looking stuff), or they are metal and don't require it either. Friends, Received my Edelbrock 7521 (Airgap) manifold and Edelbrock 7220 gasket set. Install using the “Copper Gasket Sealant Spray” the local auto parts sells. I've got the 12 pack of gaskets sitting in the garage and I want to make sure there are no air leaks upon reassembly. You would be surprised what you can tell whats going on with a motor with just a vac gauge! And then seperately I bought the metal valley pan gasket. As far as I can see, there's no mention at all of using any sealer on the gaskets that go in between the manifold and the heads, but I've always used sealer on intake manifold gaskets and all other gaskets of every engine I've ever worked on. If sealant should be used, what kind do you recommend? I am putting the carb back on my chevy 327 engine and I'm wondering if I should put a bead of sealer on the gasket between the carb and the intake manifold? New intake manifold … It doesn't stand up to gasoline (check the labeling) and at some point raw gas goes out the exhaust. Equally important, the intake manifold and head surfaces must be clean (no grease, oil or coolant film) and dry. If you have a good gasket and good mating parts, sealant shouldn't be necessary. Any ideas or feedback? It is an anerobic sealant that will only cure in the abscence of oxygen, and should … Absolutely do not put sealant around the intake … The only place RTV silicone may be required is to seal the area where the ends of the intake manifold gaskets mate with the end strip seals on the block under the intake manifold or valley cover. Set your gaskets in place and slowly lower the intake down into place and tighten it up. Should sealant be used on intake manifold gaskets on either top or bottom? bearman68. 3) Place manifold on engine (using four studs for alignment). The manifold gasket in the head set appears to be made of graphite over metal. Nissan recommends: Use Genuine RTV Silicone Sealant Part No. Should I put them both on, or should I only use one? One of the parts places here … That’s the gasket set. What sealant should i use? But the gasgacinch order bounced because they don't send it overseas. By the time you have it bolted down the "right stuff" will be setup enough you can go ahead and fire it up. Re: Do I use gasket sealer for Manifold gaskets? Also, should I worry about cleaning the engine enamel off the mating surfaces on the head side? Sealer? In all my LC's I have installed a vac gauge and use that as my primary tune-up and engine monitor. Thursday 3rd October 2013. Second, you need to consider the temperatures the sealant will have to endure. 92 months. RTV, other sealants or adhesives should not be used around the coolant or intake ports on carrier-style gaskets. RTV, other sealants or adhesives should not be used around the coolant or intake ports on carrier-style gaskets. The cork rubber ends on the intake gasket replaces the RTV. I bought some loctite fluid gasket sealant (forgot the number). The type of sealant used with these gaskets depends on a variety of factors. The gasket should be sufficient if you observe the proper torque settings when tightening the manifold bolts. This gasket is typical to what is used on cold manifold style exhaust/cooling systems. What sealant to use on intake manifold? I feel like we should do a poll at this point. Should you need sealant don't use an RTV based one on the exhaust on a 2 stroke. As a general rule, sealant is used on all gaskets---EXCEPT reed plate, intake manifold, anything to do with the carburetors or where it would foul a fuel passage. Thx _____ - posted in Engine: I am having a problem in which coolant is getting into the oil. And second question: Do I need to use a thread sealant on the intake bolts? Putting the exhaust manifolds on my 289 with metal gaskets. Something I can get at a local place or what? I'd realy like to seal up this vacuum leak once and for all so the few months left of good weather in Minnesota to drive it. I am replacing the cylinder head on a 1991 Dodge Caravan with a 2.5 liter engine non turbo. The following is a list of these gaskets and how they should be aligned: 4 Slot open style gasket used in Mercruiser application during the mid-90’s and allows for full coolant flow from the manifold into the riser. Use a light engine oil on the Head Bolts also . What would YOU do to ensure this won’t fail? First, you must consider if the gasket needs to remain flexible. 2) Apply a thin coat of RTV on the intake side of the gasket and on the intake itself. Also, use it on the outside diameter of all pressed-in seals. They never did update the photos. You shouldn't need to use sealant on the gaskets. The repair manual is not clear on whether I should use gasket sealer or not. Thanks, Dave. The surprise was the rubber sleeve that joins the left and right manifold also leaked, and the throttle body O-ring which seals the throttle body to the manifold. But otherwise, it's never a good idea to use any kind of sealer on an intake gasket. Same question- Use sealant on the metal gaskets? Use Gaskacinch on the intake gaskets to hold em in place on the heads,& just stick the cork ends to the block.A thin film of white grease on the face of the gasket where it meets the manifold doesn't hurt either. Should I use gasket sealer on a combination intake and exhaust manifold gasket? Sealant: Cork and composite gaskets can seal a variety of underhood applications. … I have tracked this down to the intake manifold not sealing as it should. Do not add sealant if it does. Photo 2 – The cylinder head mating surface must be clean, smooth and not pitted before the intake manifold is installed. Photo 3 – I do not recommend a silicon type sealant on the intake manifold. What I was referring to was the intake gaskets that came in the gasket set from Summit. I broke down and spent $125 to have the angles on the intake manifold machined, ...so I want to do everything possible to insure a leak free conclusion. Me and my '53! Boatgrunt, That is an outdated service bulletin that Don S. referred to..Merc recommends using Loctite 510 flange sealant on the manifold/riser joint. i have an altima with a ka24de, the intake manifold gasket slipped on cylinder 4 (common problem) would it be ok to use a silicon sealant instead of changing the gasket. The intake manifold installation instructions note ’must be used with OEM style valley pan,“ so in my view these gaskets are Edelbrock’s version of the Fel-Pro P/N 1216 gaskets. 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( ie, name brand ) Felpro `` Printoseal '' intake gaskets, if anything a smear of.! If the gasket should remain in place intake on Received my Edelbrock 7521 ( Airgap ) and. You use sealant instead of replacing a gasket on a 2 stroke it way! Place manifold on engine ( using four studs for alignment ) is typical to what is used on intake and. Side of the intake itself sealer- Yay or Nay head side adhesives should not be used cold. And ends on the intake gaskets click ACCEPT so that I may get credit for my work, thanks need! A smear of grease any sealer on a 2 stroke question: do I need to use Hylomar?.