Using silicone for intake manifold. You can use silicone on top of a proper gasket.

Using silicone for intake manifold. To learn why RTV may be needed and how to correctly use it, check out this video featuring Technical Product Specialist Mike Hinderer and ASE Master Certified Technician John Gurnig of the Fel-Pro ® Field Test Garage. Let set for 1 hour, then torque all fasteners to proper values dictated by the vehicle service manual. Jan 28, 2014 · I've been researching the topic and seen a lot of emphasis about not using too much sealant around the water ports to prevent sloppage/blockage/etc. I used the regular gaskets and opened up the Aug 2, 2007 · Hello everybody. The make a gasket will find all minor imperfections and help create a sealing surface on an otherwise irregular surface. Apply pressure to the system using an air compressor. Jul 2, 2008 · Hey all, I'm getting ready to replace the intake manifold gaskets (oil leak at back of block, #### me) and i happened to have been watching horsepower tv and joe made a point of putting ultra black on the intake manifold bolts to prevent oil seepage is this true on these motors? i did not do 4. Permatex Pro Tips - Brake Installation and Common Mistakes Permatex Pro Tips - Selecting the Right Gasket for an Exhaust Manifold Replacement How To Fix A Windshield: Permatex Windshield Repair Kit 09103 Sep 14, 2014 · It is fine to use the correct RTV sealant instead of a gasket if used in the right application (oil, high temp, fuel). This will make it much easier to install it on the manifold. It helps fill any gaps or imperfections, providing a tight seal and preventing potential air or fluid leaks. Water pumps, thermostat housings, intake manifolds, sump pans. Not, however, if the gasket thickness is required to produce a specific amount of clearance. You can use soap to lube the intake seals to make it easier to move the manifold around, the soap will dry and Apr 19, 2017 · Have always used the silicone for end seals. ) Apr 4, 2008 · Be very careful with using silicone sealant around the engine, especially on the intake. Nov 2, 2004 · I used Gasgacinch and RTV Hi Temp Blue silcone on my Edelbrock manifold along with Edelbrock intake gaskets. Is this true Oct 15, 2013 · do you use silicone on intake manifold if so what side head side or manifold side. What’s the best way you’ve used to seal the manifold? It’s currently leaking oil down the back of the block. I m wondering if there is a popular technique used for installing FE intake manifold gaskets when using RV Silicone in place of the 1 active, 1 guest, 0 members, 0 anonymous. I would like to use the rubber gaskets. You MUST do it even, or you "c*ck" the intake off, and it will leak at the bottom of the ports, usually more so on one side. Clean and Dry By now, you’re aware that the best way to install a Fel-Pro ® gasket is clean and dry. Jul 26, 2021 · For intake gaskets I would glue them to the head side with 3M yellow glue and on the manifold side put a little silicone around the water jacket and then a light coat of gease around the intake ports and surrounding surface. Due to it eating the orginal sealer????:shrug: But in searching, I have Ford? This looks like a sealing surface for the intake manifold, not head to block? If so, I’ve used a pick to dig the softer stuff out of the pitted areas, jb weld, use a razor after a couple of hours when it’s still slightly tacky to remove some. Jun 21, 2011 · Some red silicone rtv on the o-ring sandwiching on the intake manifold, and the car runs great on the original tune. Circle pattern from Jul 1, 2010 · This created a sealing challenge in areas where different materials with different thermal characteristics and different corrosion characteristics were bolted together. If you ever have to remove the manifolds for any reason (and if you are a true wrench turner YOU WILL), it is very hard and time consuming to remove the stuff. Been using it for years and years. Jan 18, 2009 · I need a quick update with installing 289 intake gaskets. 125 thick intake gaskets to make up for the head angle milling. In each case I made sure the gasket, intake manifold, and head were clean and used brake cleaner to remove any oil before applying sealant and reassembling. Those heads and a previous Edelbrock rpm air gap intake did not ever exhibit the problem on the previous 377 shp build I used to have. After this time, the sealer may start to set-up, and its sealing effectiveness may be reduced. I use Dow Corning 732 silicone on all of my engines. When doing an intake manifold install get 4,4 inch long 5/16 bolts and cut the heads off and use them as guide pins!!! Customer: Do I need to use black rtv silicone on the intake manifold gasket, the manifold that covers the internals of the engine? Apr 7, 2024 · If you have a cast iron intake, I'd try using Silicone Bronze tig filler rod. It prevents leaks and maintains the proper functioning of the engine’s air and fuel mixture. Aug 9, 2001 · when using the printoseal intake gaskets should any sealant be used around any of the water or fuel ports. I've used the high temp/pressure epoxy and works fine on these kind of cases, tried it on an exhaust manifold and the extreme heat and pressure blew it out within a week. Hell, don't even take it from me. Follow up with 320 or 400 grit paper on a nice true block. With both intake gaskets in place, carefully drop the intake manifold down onto the heads and make sure the bolt holes are correctly aligned. Check for intake leaks. Apr 13, 2006 · A common mistake people make when using silicone sealer instead of the cork gaskets is not using a) thick enough of a bead, and b) forgetting to run the silicone onto the corners of the intake gaskets themselves and dabbing a thick bead there. Jan 29, 2014 · Then I tried coating the gasket with Permatex Ultra Grey, which didn't work. The only place I don't use a gasket is on the rear diff cover, I just use silicone there. ) I have both, the orange boot, and the flex jointjust need to pick one or the other. Obviously, it's imperative that the flanges are straight and at the correct angle. And word to the wise: just because you install brand new seals, doesn't mean that the leak is fixed When installing an intake end seal, you may have questions surrounding the proper use of RTV. Are you having trouble with your engine? Do you think that the problem might be that the intake manifold gaskets need to be replaced? If so, should I use A Sealant On Intake Manifold Gaskets? In this discussion, we will discuss the pros and cons of using a sealant on intake manifold gaskets and help you decide if it is the right decision for you. and what is the best sealant to us on the bolt threads to keep from having bolt Aug 3, 2012 · You don't need silicone anywhere except on the intake to block front and rear sealant if you use a good manifold gasket. Got a PN# for those BTW? Apr 12, 2002 · C3 Tech/Performance - What is Best Teflon tape or silicone to Seal Intake Manifold Bolts - If it rains this weekend I will be reinstalling my stock manifold and removing the Edelbrock performer 2. 0 LX. My 383 runs AFR 195's and a Perf RPM intake. Jun 5, 2012 · Whats everyone using for intake manifold sealant. Aug 25, 2001 · C3 Tech/Performance - What type of RTV silicone should I use when installing my intake manifold? - I have a 427 big block. Apr 19, 2011 · APPLY a small amount of PERMATEX HI-TEMP RTV SILICONE GASKET SEALANT to the threads of the intake manifold bolts, wait 5 or 10 minutes, and then install the bolts. It's been recommended to discard the Feb 14, 2010 · Hey fellers, Just curious here, getting ready to go back together with my SBC(again) and was curious as to how you install your intake manifolds at the ends where it seals against the block(not where it seals against the heads). It also retains high flexibility to prevent leaks and seepage caused by vibration and thermal expansion. Apr 8, 2014 · I have replaced the intake/exhaust manifold gasket in my 1976 mgb with ZS carburetor because there is an intake leak and motor is shaking quite a bit, I find out where the leak is after spraying carb & choke cleaner, but after replacing gasket the problem continues, leak still there, when carb & choke cleaner is sprayed engine stop shaking. Use silicone or use silicone plus the gaskets, especially if the engine has been rebuilt. The Gasgacinch was applied to both sides of the gaskets, then I used the RTV sealer on the China walls and around the water jackets. V bands are now welded on where the black mark is on the intake elbow, and where the blue hump hose is. Mar 30, 2003 · Where do you use Silicone, when installing Intake Manifold on 396 Big Block 68 oval? Thanks, Dave 1968 Grecian Green Black Top 396/325 HP Muncie M-20 4 Speed. Oh, I also use silicone for end seals on the intake manifold. :chevy Jun 26, 2015 · I was unfortunate and broke the two upper 12 mm bolts that hold the throttle body onto the intake manifold. Cures in 7 minutes. . It has an Edelbrock Performer 2-0 High Rise aluminum intake manifold. I've used a thick bead of high temp black. Should I apply a thin film of silcone Aug 19, 2024 · The head/intake surfaces around the coolant passages can get rough/pitted so a smear of sealant is good insurance. I know you use silicone or the right stuff on the ends as well around the water passages. This series of silicone has much more flexibility when cured than general purpose RTV, and is more oil resistant. Was leaking very badly from front left corner where it meets the head. Use a torque wrench, and IIRC the bolts get about 20-25 ft/lbs. Jun 4, 2011 · Press new intake manifold gasket into place, using location pins as necessary to aid in assembly. Take some gasket adhesive and glue the thermostat in place as shown. Best advice is to use thicker gaskets, and pay special attention to how you torque down the intake. Gasket was complete toast. Clean up the thermostat housing as well. Its composition allows it to withstand prolonged exposure to automotive fluids like oil, coolant, and transmission fluid, making it a versatile option for engine repairs. Both sides of the gasket or one? May 11, 2020 · I’m going to replace the intake manifold gaskets on a buddies boat with a small block 350. Feb 14, 2020 · When using RTV gasketing, proper reassembly requires the following: Apply a continuous bead of silicone to the mating surface. Upon cleaning up the intake manifold I see that it is pitted around that water inlet. Mar 18, 2025 · By using the best RTV sealant for intake manifold, individuals can avoid costly repairs and maintain the efficiency of their vehicles. Rear main leaked on one but never the intake manifold. 7 Vortec. May 29, 2010 · I'm putting my intake manifold back on and am wondering if I should use the black RTV silcon that came with the new gasket. With these types of advanced gaskets, the overuse of RTV and other types of silicone sealers or other additives will prevent the gasket’s ability to form a reliable seal, causing leaks Oct 12, 2008 · Any "end all be all" advice on installing Fel Pro 1206 gaskets on aluminum heads/intake? Last time I did it with a bead of RTV between the gaskets and heads, and just made a complete mess and I ended up with an oil leak from the front of the lifter valley. The silver or red Permatex RTV works well. Make sure the bead overlaps the corners of the intake gaskets. Place the intake leak tester in the proper location for your car and tighten BOTH hose clamps. Find out more here. also i know to use silicone sealant on the front and rear of the block but how about the port areas. To learn why RTV may be needed and how to correctly use it, check out this video featuring Technical Jul 17, 2003 · Big Block V8 - 385 Series (6. Before dropping the intake in place, check to make sure there are no bolts, nuts, or debris in the intake manifold. also if you use silicone sealer on the ends make sure you "tin" the block and manifold surfaces by rubbing a thin layer of the sealer on these surfaces with your finger so when you put down the large bead it will bond to the surfaces. Jan 20, 2014 · 70+psi on the final discharge pipe to engine manifold. Then later take it off and wipe a very thin film of silicone around the ports and torque everything up. Dec 25, 2010 · I'm preparing to replace my intake manifold on my 350 chevy small block. Cast aluminum is a bit trickier, since cleanliness and porosity becomes a greater issue. Nov 17, 2010 · I strongly dont recommend using any type of RTV sealer on ANY of the intake manifold parts for a few reasons (and some of them have already been touched). If your part will see a lot of flex, Grey is the best choice. Jan 30, 2007 · I use regular Gasketcinch on the intake manifold gaskets and a 1/4" bead of silicone on the ends, works for me. This provides a perfect fit – with no adhesives – and saves installation time. It will dissolve on contact with gasoline. May 29, 2020 · What is the best sealer to use on the intake manifold bolts on a big block Chevy? a regular rtv sealant, virgin Teflon tape, regular plumbers pipe dope? want to get this correct the second time around. The carb requires support brackets that usually come with the AC. Apr 16, 2019 · I use silicone sparingly on the front and rear rubber gaskets, and a little silicone in the corners where the gaskets meet. After days of attempts using screw extractors, including one case of heating the bolt to glowing red, using a Dremel to make the entire length of the screw extractor square for more Jan 31, 2007 · Just ordered these intake gaskets, fel pro 1262, do you guys use the cork strips or just a bead of RTV sealer? I couldn't find the felpro blue rubber ones. I've used that and ultra grey rtv both, no leaks from either. Aug 10, 2024 · Exploring the benefits and best practices for choosing and applying intake manifold gasket sealers, from silicone-based to hybrid formulas. He swears by it. Note thermostat direction May 27, 2010 · Silicone on both sides of a gasket tends to make them squeeze out. The solution some auto makers chose to use was a new type of intake manifold gasket that had raised synthetic rubber silicone beads around the intake ports and coolant passages. Do you have to use a sealant around the intake passages or will specific gaskets like Felpro do without use of glue. What I want to know is , " is it necessary to add silicone to the gasket around the water cross over"? I thought I have Aug 7, 2002 · I think Edelbrock recommends using the valley gasket along with the rail gaskets for proper seal, with rail gasket between intake manifold and valley pan. Does anyone have a method that has been successful sealing the intake manifold using the rubber gaskets? Jun 13, 2020 · If you use silicone, use 100% silicone, not caulk or anything with other additives. In applications that normally use intake manifold end seals, use a 1/4” bead of RTV silicone in place of end seals (unless otherwise noted in the installation instructions for the individual intake manifold being used). This high-temp silicone sealant is designed for exhaust pipe application. Do you guys always use the little rubber gasket strip or lay a Oct 18, 2020 · I have an engine being build at a well know Mopar engine shop. Use small worm type hose clamps to secure both ends. That makes it possible to place a bead of sealer on each wall of the block, and using a couple/three pieces of 5/16 All PermaDryPlus gaskets feature proprietary in-house molded silicone rubber with strategically placed sealing beads molded to rigid carriers. This time around I plan on useing a set of 1205 Felpro gaskets, which were recomeded by Edelbrock. I use 3M weatherstrip adhesive on one side of the gasket, around the water passages and ports - set the manifold in place and tighten four corners to set the gaskets. Time to put everything back on that I took off to isolate the issue, tune and get going on this season. Choosing the right RTV sealant is crucial for a successful repair job. Usually, a 1/2" thick bead does the trick, put a smidge more on the corners where the block, heads, and intake all meet up, then let it set for 24 hours, not just overnight, but 24 hours. Installing PermaDryPlus Intake Manifold Gaskets Intake manifold gaskets have been problematic leak areas for several Apr 27, 2023 · Learn why using a sealant on intake manifold gaskets is important for a proper seal and preventing leaks. I stopped in yesterday to play around with the Procharger mounting bracket. The manifold doesn't have coolant passages, only the 6 air passages. Apr 12, 2006 · Has anyone used the high temp rtv silicone gasket maker for the connection from the o2 pipe to the manifold. :confused: Ive had my blower and manifold off between rounds on my sbc a couple times and am having trouble finding something that will set up quick enough to not fail and push out the back. Our intake leak testers are designed to slide onto the turbo inlet (turbo cars) or at any round section of pipe (non-turbo cars). And on that note, also make sure the carb is installed on the manifold and mounted securely before doing final tightening of the manifold bolts. I am currently planning to use Hi-Temp red (intermittent 650 degrees) in place of the end gaskets. Jan 22, 2023 · Currently, many car owners are starting to use intake manifold gasket sealer as a solution to prevent air leaks. Use this to pick the correct size of silicone hose that will fit tightly over the intake boot and fit snugly over the carburetor flange. May 7, 2006 · Hello all, I'm kind of confused on what is the best type of intake manifold gasket AND sealant combination to get. 0 manifold The edelbrock will be for sale Which is best to seal the bolts with teflon tape or silicone. (picture available). I have heard that are you not allowed to place any additional sealer on these. its ok for what im going to use it for right May 14, 2021 · I always use a little silicone around the water jackets on my heads when installing a intake gasket. Lightweight Performance Manifold or Intake Manifolds, Intake Manifolds, Manifold or Marine Gaskets, Marine Gaskets, Manifold or Pans, Oil Pumps, Vehicles, Intake Aug 3, 2010 · ROL says it is using intake gasket manifold materials that are similar to the OEM materials, with a nylon-filled plastic carrier and silicone rubber sealing beads. If I do use it, do I put it on the gasket or on the machined surface. Assemble parts with bolts finger tight ensuring contact is established while the silicone is still wet. It appears most people recommend not using the rubber gaskets and just running a bead of RTV at both ends. Intake Manifold End seals are not included with intake manifold gaskets as we recommend the use of silicone. I always used the rubber end seals and NEVER had a leak. Get the back of your cylinder head perfect shiny clean, get the flange of the intake manni perfect shiny clean, get a new gassket, COPPER SPRAY THE NEW GASKET, NOT SILICONE. (Just used the blue hump hose to get the correct position of the elbow inside the intake manifold. It's Ford FE proof, where the intake gaskets are essentially submerged in oil. Aug 10, 2006 · Prior to building my 383 I'll bet I installed dozens of SB chevy intake manifolds. The layout does not lend itself to using the rubber end seals. In one of the threads someone posted this as a recommended method. I then tried using just Permatex Ultra Grey instead of a gasket, which didn't work. My intake gaskets are Fel-Pro 1262's with the Print-o-Seal stuff around the ports. Have put over 100k miles on a couple of them without ever having to remove intake manifold; nary a problem with the ends leaking. Then before actually putting the silicone at the ends I rest the intake on the engine for a couple of hours so it kind of sets up where it's supposed to go. I just read a Edelbrock installation site and they glue the gasket down. Works great for these applications. how did that work out for you and for long term is it still working good and will it prevent exhaust leaks? i just ordered this stuff. I noticed he used the cork end seals that came with the Fel pro gaskets. Oct 11, 2006 · I am getting ready to put my Blue Thunder intake on and have been told two diff ways. major corrosion/pitting of the manifold can cause problems regardless of what gaskets or sealer you use). Apr 14, 2014 · This high quality RTV silicone is for use with intake manifold installations. Thanks Oct 20, 2015 · I used the silicone rubber end seals from a Fel Pro MS93334 back in 2007 and have no issues. The old gasket didn't have any sealant. 5/460) - Silicone gasket sealant / intake manifold and head? - Can silicone gasket sealant be used between the intake manifold and head along with the gasket? Oct 24, 2021 · I do use "Sil-Glide" (a high temp silicone grease) on the seals so they can move around and find their happy spot while tightening down the clamp bolts. Does it work? Jan 29, 2016 · Do you put the silicone around the coolant passage and then lay the intake gasket on top of that? I am planning on using sticky tack stuff to set the gasket in place so it stays put so if I put that down first, then what happens with the silicone around the coolant passage? Do you smear inside the gasket around the port? Jul 22, 2003 · When I worked for Glenn Niebel, we used silicone on the intake gaskets, we would glue them to the head, and let it set up hard on the head, then we would also use silicone on the other side of the gasket during assembly, but we would spray the intake manifold with a silicone spray to keep the gasket from sticking to the intake during disassembly. NOTE: When using silicone sealer, assembly must occur within 15 minutes after sealer application. In applications that normally use end seals, use a 1/4” bead of RTV silicone in place of end seals (unless otherwise noted in the installation instructions for the individual intake manifold being used). Should you use the corks with silicone or just silicone one the Nov 24, 2018 · Replacing the intake manifold gaskets on a 1998 K1500 5. Get the blue felpro gaskets and you don't need any dealer on them. It will keep the sending units and hose fittings from seizing in the aluminum. Apr 7, 2024 · IMO those blue intake gaskets with the lip SUCK ! Use the standard Harley seals with no sealer or silicone. The silicone hose will stretch a little and if necessary use a little bit of heat from a heat gun. Dec 10, 2024 · Permatex Ultra Black is a specially RTV silicone for high oil resistance. Unless you have any nicks or visible damage then you should be fine with the standard gasket. Jun 29, 2005 · I am getting ready to install my lower intake manifold. Aug 16, 2025 · A gasket maker for intake manifold sealing is a type of adhesive sealant used to create a durable bond between the intake manifold and the engine. Good to approximately 482ºF (250ºC). Sep 15, 2002 · Performance & General Engine Building - Anyone using gasket selant on intake manifold? - I'm installing an Edelbrock mainfold with FelPro Printo-seal gaskets. Sep 29, 2014 · Need opinions on whether to use the front and rear seals or a bead of silicone on the V8 intake manifold? I have done it both ways, but I would like to know what you think is best to insure a good seal? Thanks. Nov 10, 2010 · Don't use any kind of silicone gasket maker. Jan 12, 2022 · This is a common place where small block Chevys leak. Because of some thin areas around the ports (enlarged for my 383), I find myself Feb 13, 2021 · It's a standard procedure for me to silicone the gaskets to the heads and also run a thin layer of silicone between the gaskets and the intake. Should I use Hi-Temp copper or some other type? Thanks for any replies. Oct 24, 2011 · Does not corrode copper and copper based alloys. I used Mr Gasket regular gaskets b/c the printo-seal types had the printoseal bead "fall" a little into the water port on the intake manifold. In an emergency fix at the track or something you can get away with using only silicone. I pulled it apart to fix a Jan 2, 2003 · The only time I use silicone in stead of gaskets in on the manifold ends of motors where the block or heads have been decked, and attempted use of the end gaskets makes installing the manifold a problem due to clearance changes. John starts by showing examples Do I need to add sealant when installing these intake manifold gaskets? (fel-pro, for 1988 mitsubishi) Finding conflicting information online. Set the intake down without any gaskets or sealer in place, and finger tighten a couple bolts on either side. I also use 4 pieces of5/16 threaded rod in the corners to guide the manifold down, and hold the gaskets in place. May 19, 2005 · I use gaskets only and occasionally I'll spray some high tach on the gasket just to hold it in place. Jan 13, 2011 · Never use rtv silicone on the intake manni gasket, IT IS NOT NEEDED AND ONLY MAKES A MESS CAUSING MORE TROUBLE. (This is due to limited turn around / setup time. Most engines built in the last 25 years use molded rubber gaskets to seal valve covers and oil pans. It bothered me a Dec 28, 2002 · for 40 years i have always glued the gasket to the head with contact cement or gasket-cinch to prevent it from moving while installing the manifold. Mar 11, 2024 · Some grades of silicone sealer are good to use for this. RTV sealant is better than primitive gaskets in most applications ie. I have a '71 BB 402 (3969854) with the 3964290 OVAL heads. Nov 17, 2019 · Make sure your block and manifold are clean, and free of any major corrosion (especially with aluminum manifolds. I did buy the correct gasket set with the May 15, 2003 · Getting ready to install my intake on top of my new 409SB using FelPro 1205 gaskets and I am not sure whether the blue sealing bead goes toward the head or the intake manifold?? I am thinking the seal beads should go to the head side but want to be sure. This oil resistant sealant is fast curing, sensor-safe, low-odor, non-corrosive and meets performance specs of OE silicone gaskets. You probably know the SBF manifold hold-down bolts are threaded vertically into the head, unlike other makes of small blocks where the mountig bolts are normal to the head faces. Should I use any sealer (gasket shellac or similar) around the ports or put together dry? I know about using RTV around the water ports - its the intake ports You can use silicone on top of a proper gasket. May 2, 2018 · The intake manifold originally had rubber gaskets at the ends. 1/370, 7. 0/429, 7. Jun 6, 2003 · I'm in the process of installing my lower/upper intake manifold on my 1990 5. Intake Manifold End seals are not included with Intake Manifold Gaskets. Apr 22, 2024 · Using a sealant on intake manifold gaskets is recommended for a proper and leak-free installation. Oct 23, 2002 · According to Whisperer's detailed instructions on installation of an intake manifold, I should chuck the cork front and rear gaskets that came with the gasket kit and apply beads of silicone instead. Nov 20, 2018 · Want to know how to use gasket sealers? Learn why some Fel-Pro gaskets are installed dry and some require the use of a sealant in this informative video that features John Gurnig. Mar 22, 2024 · It is best to use brass threaded inserts in your aluminum manifold. On the SBC, the gap between the intake and the block will vary because of differences in the manifold, where it's positioned, and any machining done to the heads, intake, and block. For years I always tossed them in favor of a 1/4" bead of silicone. I've read in this forum not to use the cork gaskets that mates between the block and the lower intake in the front and rear of block (I think they are the "S" shaped ones) and use silicone instead. If the sealant you chose isn't oxygen sensor safe, it will leach out silicone as it cures and contaminates the oxygen sensors. i will use silicone on front and rear instead of cork sorry simple question it has been long time since i installed one. <P>The turkey tray gasket is designed to keep hot oil off the intake manifold exhaust crossover area. May 27, 2022 · I have had a problem since day one from last fall of my intake not wanting to stay sealed on my 350 small block chevy which is a Dart shp block and using Dart pro 1 platinum aluminum heads. Nov 15, 2017 · Grey RTV For high-torque applications, such as intake manifolds and close-spaced bolt profiles create higher torque loads on the sealant, grey RTV is used. Specifically, if you're sure you've had an intake start leaking AFTER the use of silicone as a sealer, please post about it. Thanks for the help. To me it looks like quite a lot of sealant (and I'm personally not a fan of May 12, 2008 · I'm running an Air-Gap intake and using . Aug 16, 2025 · The common mistakes to avoid when using gasket sealant for the intake manifold include improper surface preparation, incorrect sealant application, inappropriate sealant type, applying too much sealant, and neglecting curing time. No members currently viewing this topic! Nov 20, 2018 · Proper Use of RTV with Intake End Seal Installation When installing an intake end seal, you may have questions surrounding the proper use of RTV. Cures even at high temperatures- 120°C in an uncured state. Jul 30, 2010 · C4 Tech/Performance - Who thinks using silicon on an EFI intake is a bad idea? - Please vote accordingly. I kinda just rub it into the gasket,so thin it almost doesn't even squish out when tight,needs very little. Also do the seals and manifold and tighten that down then install the carb and attaching parts and hardware. However, if the two mating sides are clean and identical then there shouldn't be an issue. ukuzlr6 nvpnxuq 1gic gljf1 wnpi cu g2et bg4xz3q wgssn mb