Yes, you can put a dab of RTV on thermostat to hold onto the housing. I usually don't use a paper gasket on this with no leaks. I just use 100% clear silicone with never a leak. I've tried a few different RTVs (Ultra Black, Ultra blue, High Tack, etc) when doing water pump and thermostat gaskets.
When is it a good idea to add sealant to the thermostat gasket?
What is the problem with adding too much sealant to a thermostat gasket?
How to tell if gasket isn't working?
Why use a liquid gasket maker?
When to stick to sealant?
Do you need to seal a thermostat gasket?
Can you use sealant on a gasket?
See 2 more
Do I need gasket sealer on thermostat gasket?
Hi there - no, gasket sealer should not be required. the thermostat should come with an o-ring, and the water pump should come with a paper-like gasket. Neither should require gasket sealant as long as the o-ring and gasket are supplied and used as instructed.
Can you use RTV for thermostat?
Permatex Water Pump & Thermostat RTV Silicone Gasket Maker is a noncorrosive, sensor-safe RTV silicone gasket material formulated for water pumps and thermostat housings.
What can I use to seal a thermostat?
Product Description. Permatex Water Pump and Thermostat RTV Silicone Gasket is a non-corrosive, sensor-safe RTV silicone gasket material formulated specifically for water pumps and thermostat housings. This gasket maker has the highest water-glycol resistance available in an RTV silicone.
Do Fel Pro thermostat gaskets need sealant?
Fel-Pro head gaskets are also designed so that no additional sealers are needed. Modern facing materials and Fel-Pro's proprietary coatings will compensate for minor surface imperfections, resist scrubbing, and provide the proper amount of torque retention to create a true no-retorque head gasket.
How long does thermostat gasket sealant take to dry?
TYPICAL CURING PERFORMANCE Permatex® Water Pump & Thermostat RTV Silicone Gasket cures on exposure to moisture in the air. The product dries tack free in one hour and fully cures in 24 hours.
Do you really have to wait 24 hours for RTV to dry?
Typically, RTVs require a minimum of two hours to set up and 24-hours to achieve the full cure that's needed before adding fluids or returning the vehicle to service.
Do you put gasket sealer on both sides of the gasket?
Unless a primer is required, you should apply the sealant to the prepared surface. Apply an even coat to all sides of the gasket.
Can you put silicone on a gasket?
Gasket maker or silicone sealant should never be used as a glue or means of keeping a gasket in position when you reassemble your engine. Mechanics often do this believing, erroneously, that a gasket maker will not only hold the gasket in place, but it will add to the seal.
Can you use silicone instead of a gasket?
The short answer is no. RTV silicon is a great modern sealant, but must be used in the knowledge that the sealant can block oil ways.
Do Fel Pro Gaskets need RTV?
0:553:30When to Use RTV Sealer During Gasket Installation | Fel-Pro GasketsYouTubeStart of suggested clipEnd of suggested clipYou don't need to goop it all up there's no rtv that needs to be applied at any of the intake portsMoreYou don't need to goop it all up there's no rtv that needs to be applied at any of the intake ports or coolant ports. Or along the edge of the intake.
Do you lube thermostat gasket?
You do not lube stat seal since it can allow the seal to simply slide out of place, you definitely do NOT want that there.
Do you use gasket sealer on Felpro gaskets?
Fel-Pro, ASE Certified Master Technician, John Gurnig provides examples why most Fel-Pro gaskets do not require the use of sealant. In certain cases, however, it is required when mating gaskets or filling gaps.
Does RTV work on coolant?
any regular rtv even the right stuff is not compatible with cooling systems with antifreeze, although the right stuff will last longer than the regular, it will still leak over time with antifreeze....
Can RTV hold pressure?
The high temp "Red" can withstand intermittent temperatures of up to 650° F. All colors can withstand pressures up to 350 psi. Offers unmatched performance under the most severe operating conditions.
Can you use silicone instead of an o-ring?
In conclusion, silicone 'O' rings can be applied to high-temperature applications or where damage from the elements may otherwise be an issue. However, due to silicone's poor tear and abrasion resistance, it should only really be considered for static rather than dynamic applications.
Will RTV seal coolant?
Ive always just used a very light coating of rtv on the gasket and pop in and fill up and go. The coolant will surface cure the RTV and the heat will cure it completely in minutes.
What Sealant to use on Thermostat Housing? | StangNet
After looking at the Permatex website, I think their High Temperature Anaerobic Flange Sealant may be the best choice for use as a gasket dressing and bolt thread sealant. Edit: Maybe the Permatex Ultra Rubber Gasket Sealant & Dressing would be a better choice since it doesn't sound like quite such a pain to remove at a later date. My initial silicone assembly would have been fine were it not ...
What's the best gasket sealant for a thermostat housing?
Using weatherstrip adhesive in a place that gets over 200F is not a good idea - it is made for weatherstripping. I use some heavy duty RTV (ultra blue) at the corners of my pan and intake but it is most often over-used and can cause problems if a piece gets loose and into oil or water passages, blocking the flow.
clean gasket or add permatex on the thermostat housing?
If you going to mount a new thermostat. Would you only use gasket, or gasket will small amount Permatex, or permatex only? I used new gasket and small amount Permatex on the gasket, but some water leaked out thru the bolts so I have to redo it and was curious how you guys mount your thermostat housing, if my way is a big nono.
thermostat housing gasket | Jeep Wrangler Forum
Real simple question for everyone. Does the gasket for the thermostat housing go on the head or the housing side of the thermostat? Just replaced my gasket and fired up the motor to see it puking coolant from the housing gasket. Just trying to figure out what I did wrong.
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What RTV to use for thermostat gasket?
By FAR the BEST one to use for this application is the Permatex "Water Pump and Housing" RTV. It only comes in small grey colored tubes (can't get it in the big tubes like the others), so one tube works for the housing and you'll need a couple if you're doing the pump. It cures quickly and has sealed every single time for me....can't say that for the others. HTH
How to keep thermostat from falling out?
Grab yourself some string! Thread the string through the thermostat housing and into the thermostat to hold it in place. I usually hold it with my teeth or with my other hand. This will keep it from wanting to fall out........
Does Ford use a gasket?
the ford housing uses a o-ringed gasket not paper or rtv.
Can you put a dab of RTV on a thermostat?
Yes, you can put a dab of RTV on thermostat to hold onto the housing. I usually don't use a paper gasket on this with no leaks.
Where to use RTV gasket?
RTV should only be used on the corners of the gasket and/or stepped casting areas that have a gap. Using a small amount of RTV will fill in those areas to assure a leak-free assembly. RTV is typically applied to the corner (s) or stepped areas on the engine so as not to smear the RTV during the installation of the component.
How long does it take to cure a RTV?
Once the engine component is installed and torqued up, the RTV needs time to set up and dry – don’t rush the job. RTV typically needs 24 hours for a full cure.
Can RTV be used as a sealer?
Due to their shape and design, some molded rubber gaskets necessitate the use of RTV as a supplemental sealer.
Can you use RTV as a gasket sealer?
However, there are times that you may need to use RTV as a supplemental sealer while completing various gasket repair jobs. Read on to learn when and how to properly use RTV. Note – Be sure to always follow the manufacturer’s recommendations for proper use of RTV.
Do you need a rubber sealer for engine gaskets?
Most engines built in the last 25 years use molded rubber gaskets to seal valve covers and oil pans. 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. However, there are times that you may need to use RTV as ...
Can you put RTV on a gasket?
Apply RTV only to the areas that need it – don’t put it on the entire gasket. Remember that when the casting/gasket is torqued into place, the RTV will flow into the joint and gasket. Some manufacturers will recommend the amount of RTV to be applied, and it’s good to remember that a little RTV goes a long way.
Can RTV cause gasket to slide out of place?
Applying RTV in the wrong areas can cause permanent damage, such as over compression and splitting, to the gasket. It may also cause the gasket to slide out of place. Rubber gaskets are designed to have a certain amount of compression applied to them. The addition of RTV or a sealer puts more compression on the gasket than what it was designed for.
How to use RTV on a gasket?
(assuming both surfaces are even and in good shape) If the manufacture calls for RTV, then i lay a 1/4" bead all the way around and on both sides of the bolt holes. Place the cover on and hand tighten, wait "at least" a hour and then tighten to spec. If it's a cork gasket, i throw it away and just use RTV. Unless it requires a gasket for clearance. Then Use a thin layer of RTV on both sides and apply while tacky.
How long to wait to fill differential with RTV?
Above all, make sure the surface has been wiped clean with a solvent to remove the oil film. And wait at least 1/2 hour before filling.
Can you use RTV to seal coolant?
I have had an absolute ton of cars come in leaking coolant because RTV was used to seal something like coolant under pressure so be very careful. The best seal comes from a paper gasket with proper cement or an o-ring. It can be done with RTV, just be very careful. Let it dry before adding coolant and starting the engine.
Does RTV work on valve cover?
RTV works well in certain instances. For example if a valve cover gasket lip is distorted from someone trying to pry it off and bends it. Or your favorite parts store doesn't have a gasket you need and you're in a bind to get a job done. The trick is to be patient and allow the product to dry before running the engine.
Can you use paper with RTV?
Some covers were designed for RTV ONLY and some were designed for paper. The ones designed for paper don't do as well with RTV only, while the ones for RTV do fine with just RTV of course but OK with paper added (assuming a gasket is available). Neoprene/silicon gaskets are great if they are available for the application.
Can you get RTV off later?
This is right. And you can get RTV off later - it can be very tough with other sealants. If it leaks, it was not clean, or you did not let it set up before refilling and running it. And TV is the EASIST to clean of, no
Is it hard to clean off RTV?
I have found RTV to be very difficult to clean off before re-applying. Absolutely nothing wrong with its sealing capability though.
When is it a good idea to add sealant to the thermostat gasket?
One such case is when the flange is uneven and the gasket isn’t sitting properly on it. Adding some sealant to even out the grooves and shapes and letting it dry hard is a great quick-fix to solve the problem.
What is the problem with adding too much sealant to a thermostat gasket?
Too much sealant can actually spill out of the thermostat groove, causing other parts that surround the thermostat to come in contact with the sealant. Unwanted dried-up sealant on parts (particularly made of aluminum) is difficult to remove and clean, and can also create other problems.
How to tell if gasket isn't working?
One of the first signs that your gasket isn’t working properly is leaking coolant. Most of the time, coolant will leak out of the thermostat and into the surrounding parts in the interior of the car. You can have some cases where the coolant leaks out of the car, but this is more rare.
Why use a liquid gasket maker?
Using a liquid gasket maker will be useful for better temperature control but may not be as durable as other alternatives.
When to stick to sealant?
Stick to sealant only when your gasket is old or doesn’t have any additional adhesive backing. Furthermore, try to ensure that you’re only applying a very thin layer of sealant.
Do you need to seal a thermostat gasket?
The kind of thermostat gasket you’re using also plays a role in whether you need an application of sealant or not. Most vehicle owners and mechanics do not apply any sealant to rubber or metal gaskets, but won’t hesitate from using some sealant on a fiberglass gasket. The material plays a big role because some materials can get warped and lose their shape when they come in contact with sealant.
Can you use sealant on a gasket?
If you haven’t been able to source a quality gasket, you can fortify a cheaper gasket with sealant for a more long-lasting and reliable product. Do this by applying a very thin layer of sealant evenly all over the gasket and letting it dry completely before using. This layer of sealant can provide more structural integrity to an otherwise flimsy part.
Can You Use RTV For The Valve Cover Gasket?
What Does An RTV do?
- RTV means room temp vulcanization silicone,which indicates that it begins to harden as soon as the silicone comes into contact with high humidity. Because it is impermeable and sticky, it proves to be a good gasket sealer. When RTV sealant is pushed out of an airtight tube and exposed to the moisture in the air, a reaction occurs, forcing the sealant to cure and solidify. RT…
FAQs
- Can I Use RTV On Thermostat Housing?
Our answer is clearly yes. You may use enough RTV on the thermostat housingto keep it adhered to the housing. You may achieve this by utilizing a thermostat RTV Silicone Gasket, a non-corrosive, safe RTV silicone gasket material specifically for thermostat housings. - How Long Does RTV Need To Dry?
RTVs usually take two hours to process and 24 hours to cure completely before pouring fluids or restoring the vehicle. Also, 72 hours is the maximum drying duration to make sure the RTV is totally dry.
Final Thoughts
- Overall, we hope that our research will assist you in fully comprehending RTV for valve cover gasket. You now know whether or not an RTV suitable for gaskets may be used. You’ve also identified the ideal RTV and learned how to use it effectively. Thank you for spending your time reading our post, and stay tuned for our next article. See you then!