Genuine Honda 19045-RAA-003 Radiator Cap. That all checks out fine. Then, the cap opens and allows a restrained … So I came here. p15-d24.com/pilot-house.com Copyright 2020-1998 The first radiator pressure tester that should be noted, and the one with the highest reviews, is the FJC 43645 Radiator and Radiator Cap Pressure Test Kit. Leaked coolant stays in between the radiator upper tank and the radiator upper body. Advertisement. Misconscrewed. When the refrigerant expands, there’s no space in the radiator for it to take up. I have a Chrysler. However, straight water has a lower boiling point than a mixture. My 2006 Chevy Silverado 2500 6.0 has no pressure in the upper radiator hose no matter how long I drive it. Isn't there an overflow that is open to the atmosphere? The strange thing is, when I took the cap off of the radiator (not the overflow reservoir) their was no pressure spring on the back of it. I’m assuming the original radiator cap on my 1937 Hudson was a no pressure cap but I cannot find anything listed anywhere on it. saleenster. Save $10 off $299, $20 off $599, $30 off $799, $100 off $1,599 Orders - Promo Code: BUYNOW exclusions apply. You can see that all the examples above have a similar boiling point. Note: Using a high pressure CAP in normal system and if the temperature ever hits above 140 degC; it would be a problem as the system is operating a over temp and component wear will be critical, the tubes may burst causing a disaster if you are pushing the car hard. Heating, Cooling & AC. We get asked this question daily and it seems most people misunderstand what the pressure cap does. They should not be used on passenger cars. Add to compare list Add to wishlist. The cap does this by a spring loaded valve which serves as a pressure relief valve at a rated pressure. Sometimes its hard to find a correct radiator cap. A high-pressure radiator cap, like those produced by AFCO Racing, is well advised with race cooling systems that do not use a thermostat or restrictor. And the boiling point increases 2-3 degrees for each additional psi of pressure in the system. $12.81. Why is the cooling system under pressure? They do this because water transfers heat better than a mixture. OVERVIEW . The radiator cap controls this expansion and provides constant pressure on the system. By Stant offers standard on radiator caps as well as caps for coolant recovery tanks. Moparjack 489 FBBO Gold Member FBBO Gold Member. If I recall I believe this was the only forum I could find to cover my 52. When you need a part for your Jaguar E Type - we are the people you will want helping you. Cost was only 3 or 4 dollars. The increased system pressure offsets the reduced antifreeze content. Humor is not always sensed in the written word. The radiator cap serves to keep the coolant in the engine under pressure, and that pressure raises the boiling point. A new word has been coined. (Our wives may give a different opinion........lol). My only old car is the 47 Plymouth convertible. For correct radiator cap testing a commercial type radiator cap and coolant system tester is required. VENTED Radiator CAPS. A high-pressure radiator cap is used to raise the boiling point. The caps pressure rating varies by engine application anywhere from 13 – 16 psi.   You cannot paste images directly. Radiator Cap Rubber Upper Seal 17lb. A high-pressure radiator cap is intended for race engines running little to no antifreeze. Radiator cap pressure question. Also, many race tracks do not allow glycol-based fluid to be used. At higher elevations the boiling temperatures are all lower since atmospheric pressure is lower up here. A radiator pressure cap keeps the system pressure at 16 PSI, which avoids the coolant from boiling off even when it gets hotter considerably. Sometime back, I found one available at NAPA stores.....they may have to order it in from the warehouse.....but last I knew they had them. C.W. There may be a physical difference between a non-pressurized cap and the pressurized ones, a difference that would keep them from fitting my car; otherwise my car doesn't care, Well..........the name of the forum is the P15-D24 forum.................with the P15 identifying Plymouths from 1946 to the. This is to keep a proper amount of coolant in the radiator when it expands. For overheating problems, troubleshoot and/or upgrade these parts first: If your current cooling system is running well and doesn’t overheat, a high-pressure cap is unnecessary. Read more. Radiator Cap, Cam-On, Rating 7 psi, Pressure Range 6to to 8 lb. 30. When I pushed on it there was no springing motion, or any movement at all for that mater. Depending on the year some do use pressure caps. The coolant mixture and system pressure combine to set the boiling point. The radiator cap allows pressure to build up in the cooling system and will eventually vent that pressure to the overflow bottle as the need arises. RADIATOR Caps Radiator & Reservoir Caps. The cap is actually a pressure release valve, and on cars it is usually set to 15 psi. Open 24x7 - Same Day Shipping!   Your link has been automatically embedded. (Spilled antifreeze causes both safety and environmental issues.). Was only being helpful. Advertisement. However, I think some place in the moderator's description, it mentions other older Mopars as being included. (for the year Don is inquiring) There is never a mentioning to its service in any regard...therefore it has no effect on the cooling system except to keep slosh over in check to some degree and other foreign matter out of the system..and in case of boil over..direct the pressure and fluid loss through the vent cap and attached metal tube to a safe point below the car... Ok good enough man. Because the thermal efficiency of internal combustion engines increases with internal temperature, the coolant is kept at higher-than-atmospheric pressure to increase its boiling point.A calibrated pressure-relief valve is usually incorporated in the radiator's fill cap. So the over-simplified answer to the tech quiz is that, yes, a higher pressure radiator cap … Cutaway of radiator cap and reservoir. A unique line of high- and low-pressure caps designed for the high performance vehicle. The radiator cap ensures that this pressure remains constant. ­­The radiator cap actually increases the boiling point of your coolant by about 45 F (25 C). But if your radiator has this button at the top of the upper tank this is the vent to the atmosphere. × * The tang to tang distance is 1.990" with a tang width of 0.370"* Will not fit 154, 184 or 185. "early 1949" models. RADIATOR CAP, NO PRESSURE - Since 1976, Terry's Jaguar has been in the business of supplying a wide range of parts for Jaguars - everything from XK120, XK140, XK150 and all XKE / E-Type Parts models right through to the latest Jaguars on the road. 99. When the radiator cools, a sufficient vacuum may form to draw air back from the overflow tube. This allows the system to operate efficiently without boiling off the coolant and overheating the engine. Too much pressure can cause damage, while not enough pressure can cause the engine to overheat. High Pressure Radiator Cap with Temperature Gauge 1.8 Radiator Cap Compatible with Motorcycles Honda Kawasaki Suzuki Yamaha ATV Models 1.8 Bar 25.6psi by Sikawai. But it needs to go somewhere so the cooling system’s pressure builds to the maximum pressure limit of the radiator cap’s valve. For special uses, non-glycol, water-based, and waterless coolants are available. FREE Shipping. Page 1 of 1 Start over Page 1 of 1 . 99 Jegs has billet, chrome, logo version caps and racing radiator caps. The cap is actually a pressure release valve, and on cars it is usually set to 15 psi. Where to find Motorad products . When the fluid in the cooling system heats up, it expands, causing the pressure to build up. That same mix at 16 pounds per square inch (psi) of pressure boils at approximately 250 degrees. If you have a radiator pressure tester, then you can inspect the cooling system on your own. Thread starter saleenster; Start date Jan 5, 2006; Forums. Here is a picture of the box with part number.............. Just thought this information might be helpful to someone. I wouldn't risk it myself. Your browser either does not have JavaScript enabled or does not appear to support enough features of JavaScript to be used well on this site. So, there is a little difference in various models. Cutaway of radiator cap and reservoir. If you have an account, sign in now to post with your account. And over time your fuel costs will also increase. Jul 18, 2011 #1 hey guys, heres the deal: i can drive my car for 30 miles and when i come to a stop i can twist off my radiator cap and the coolant does not shoot out … Locations Found in zip code . i replaced the t stat for the third time btw the top hose gets pretty hot, but the bottom hose doesnt get very hot after running. To understand why, you first need to understand: The Role of the Coolant Mixture; The Role of the Radiator Cap; Some race vehicles run straight water as coolant. 4.5 out of 5 stars 68. You want pressure caps if the car ia suppose to have one. The Function of Radiator Pressure Caps: Most radiator pressure caps keep the system pressure at 16 PSI so the engine coolant can get considerably hotter without the fear that it will boil off. To understand why, you first need to understand: The Role of the Coolant Mixture; The Role of the Radiator Cap; Some race vehicles run straight water as coolant. The pressure in the cooling system should reach the maximum of whatever the radiator cap is set for, usually 15 to 17 lbs. In the systems in the 46 through early 49 years the cap is of no significance, since the overflow dome is above the cap and vents directly to the atmosphere. This protects the system from boiling over at the top of the operating temperature range. The forums of P15-D24.Com, Mopar cars and trucks from mid 1930s to late 1950s. Most standard radiator caps are also offered in a version with a safety lever feature and each part is factory tested prior to shipping to customers. Try removing the reservoir cap slowly with a rag over it to see if the tank bubbles or hisses with the release of pressure. Does this mean I'm miscon"screwed"? The cap does this by a spring loaded valve which serves as a pressure relief valve at a rated pressure. Les meilleures offres pour Ford d'autres vintage Radiateur pression Cap Part No WT/10C WAXSTAT nos (12) sont sur eBay Comparez les prix et les spécificités des produits neufs et d'occasion Pleins d'articles en livraison gratuite! I live at 6150' and a 13 psi cap boils at 250 for me. Coolant pressure. This drives to consequent leaking of the coolant through the radiator pressure cap. Rubber seal. Dec 29, 2010 140 2 18. Hey folks , On my upper radiator hose I never get pressure on it , it’s ok , or not ? Visually inspect that cap to make sure the spring moves freely and there is no debris or corrosion under the cap. Your pressure tester should have an adapter to test the radiator cap as well which is a good idea to keep the engine from overheating. High pressure caps are available for open and closed cooling systems. If the radiator cap is stuck, pressure may build inside of the radiator, which could cause cooling system components to leak or burst. What happens when dry ice is warmed at 1 ATM of pressure? It would seem that if someone got misconscrewed (I think you meant misconstrued) than they would also become discombobulated fairly easily too. Radiator Caps are designed to seal the top of the radiator filler neck to prevent coolant loss, pressurise the cooling system and raise the boiling point of the coolant. Check the pressure on the cap with a radiator cap pressure tester. The radiator pressure cap is a two-valve part that holds coolant and keeps the radiator system pressurized. 17lb Pressure. Aug 18, 2002 2,622 0 47 Vancouver, WA Visit site. Seller assumes all responsibility for this listing. May 7, 2020 #1. (This is just an example, not a recommendation.). Clear editor. Radiator Cap (No Pressure) 1935-1936 Ford Passenger. Your radiator cap is a small part that plays a big role in keeping your engine from overheating.There are several warning signs that your radiator cap is not working right: 1. High-performance engines also create more heat. They do … Read more. '49 and up were pressurized I do believe. this is the    P15/D24 website...often the main membership still refers to these cars in their posting.. if in reading the manual there is no specification on the radiator cap. Cooling systems are under pressure to increase the boiling point of the coolant. The radiator cap actually increases the boiling point of your coolant by about 25 C. How does this simple cap do this? Community Forums. Sometime back, I found one available at NAPA stores..............they may have to, order it in from the warehouse........but last I knew they had them. Messages: 314 Likes Received: 55. As the engine's coolant heats, it expands, increasing pressure inside the closed coolant system. Stant offers standard on radiator caps as well as caps for coolant recovery tanks. Nope, that's why it didn't come from the line with one on it. Does my '47 radiator care if there is a pressure cap? I’ve read that the 7lb cap could create problems (ie: blow the radiator) if the car had a no pressure cap originally. The cap will not allow air or coolant to expand out of the radiator until the design pressure is met (7 or 13 lbs, depending on model), at which point you may have an overheating condition.   Pasted as rich text. A radiator cap is the part of a vehicle responsible for containing engine coolant and ensuring that the cooling system remains under pressure. High pressure caps are made for use on race cars only. Sorry to have misconscrewed the coining of the word. Then again, sometimes my humor takes some getting used to. RADCAPVLSS. Joined: Apr 22, 2018 Location: Germany / Local Time: 8:17 AM. I myself consider it a pre 1960 forum though I believe I've seen newer years than that posted. p15-d24.com/pilot-house.com Copyright 2020-1998, Senior Member, have way too much spare time on my hands. While driving my scanner shows the engine runs at 195 degrees. High pressure caps are available for open and closed cooling systems. I own a 1995 Honda accord v6. Because liquid expands as it gets hotter, the pressure cap allows coolant to escape to a reservoir tank when it expands. When you need a part for your Jaguar E Type - we are the people you will want helping you. You'll notice that there's a plunger on the bottom of the cap. For details on cooling system and radiator cap testers see service tools section page 117, including Toledo and Sykes Pickavant cooling systems and cap pressure testers. Sold each. The pressure keeps the coolant from reaching a boiling point as quickly. Your pressure tester should have an adapter to test the radiator cap as well which is a good idea to keep the engine from overheating. Higher pressure caps can boost the boiling point even more. RADIATOR CAP, NO PRESSURE - Since 1976, Terry's Jaguar has been in the business of supplying a wide range of parts for Jaguars - everything from XK120, XK140, XK150 and all XKE / E-Type Parts models right through to the latest Jaguars on the road. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. The cap pressure rating has nothing to do with regulating your engine coolant temperature, nor will it make your engine run cooler. Sometimes the written word can be misconscrewed. , Material Metal, Locking No, For Use On Please Refer to The Application Guide In The Documentation Section Below From the manufacturer. A radiator or cooling system pressure test is useful when finding a radiator leak or a blown head gasket. Same motor as Adv with identical seal No pressure when removing radiator cap The radiator cap acts as a release valve set to open at the maximum pressure point. To understand why, you first need to understand: Some race vehicles run straight water as coolant. For the most part I enjoy it. High-pressure Radiator Caps have a specific purpose. Find Radiator Caps 0 psi Maximum Pressure (psi), Stant Cap Logo and get Free Shipping on Orders Over $99 at Summit Racing! We have placed cookies on your device to help make this website better. I love it! However, let’s start with what they DON’T do. If the cap that you are using for your radiator is not sufficient, it can result in problems with your cooling system. MotoRad radiator pressure caps are designed and manufactured to offer precise pressure control for the automotive cooling system. By the 1930’s Stant became a leading supplier of hood ornaments, producing such classics as the flying quail ornament for the first Ford Model A and ornamental caps for various Lincoln, Packard, Pierce-Arrow and Cadillac models. Stick around and have fun. 2) White Streaks on Radiator. A high-pressure radiator cap is intended for race engines running little to no antifreeze. I decided to check the coolant level and condition, at the radiator and also the reservoir. You can post now and register later. Once diagnosed, however, fixing the issue doesn't have to be daunting. Founding Member. for the word to have just been coined, the internet is very full of the slang applications of the word....as the old saying goes, kicked the slats out of my cradle when I first heard this one... Misconscrewed is my attempt at humor. $16.01. Avoid pressure above 18 pounds so you do not damage the cooling system by causing a rupture. Generally, 25-psi is the maximum pressure quality radiator caps are rated for. Sometimes it's hard to find a correct radiator cap. × If you see this type of symptom, you should replace it immediately. If there is no pressure in the cooling system, the coolant will boil off. It won’t hurt anything. Radiator Pressure Cap, Coolant Reservoir Cap Replace RS-527, RS527, 9C3Z-8101-B, 9C3Z8101B Compatible with Ford 6.0 7.3 Powerstroke - Explorer F150 F250 F350 Mustang Taurus, Lincoln, Mercury, More $12.99 $ 12 . Sorry if I offended anyone by trying to be helpful. A high-pressure radiator cap is intended for race engines running little to no antifreeze. Rubber upper and lower seals. interchange in those models. What an awesome word. Radiator Cap …351030R91, 400586R1 * This radiator cap is now exactly like the original. If the pressure is not constant, your vehicle could run the risk of overheating […] A loose radiator cap will cause the system not to pressurize, resulting in overheating. Rubber upper and lower seals. David, my thoughts are, the only way that you can lose pressure is that the reservoir cap is faulty or you have a pressure leak somewhere. If so, then replace the cap. $19.99 $ 19. Stant products offers a wide variety of radiator caps for domestic and import cars, heavy-duty and light trucks, racing, off-road, and agricultural applications. The easiest way to fix this problem is with a new radiator cap. They should not be used on passenger cars. There is one coolant cap that is quite different others: Stant #10231. Part No. Sometimes some of us may sound grouchy.........but we are really not. The old Mopars originally had no pressure radiator systems. The chart below shows how these things affect each other. I think that pre 1949 were all non-pressurized caps, though. Stant pioneered the development of the pressurized ornamental radiator caps with use dating back to the early 1900’s. DT Spare Parts 4.60995, Radiator cap (Pressure : 0.7 bar), replaces Hella: 8MY 376 742-231, replaces MAN 81.06110.0026, Mercedes-Benz 000 501 4515 Paste as plain text instead, × The pressure in the cooling system should reach the maximum of whatever the radiator cap is set for, usually 15 to 17 lbs. Anyway, new to me. High pressure caps are available in pressures ranging form 19 to 32 pounds. , Material Metal, Locking No, For Use On Please Refer to The Application Guide In The Documentation Section Below From the manufacturer Which is great, as I think they are much the same animal in their overall makeup. Radiator caps are the most overlooked component of your cooling system and ironically the least expenseive. Radiator Caps are manufactured using either metal or plastic design depending on the vehicle manufacturer’s specifications. RCPR7SS. Stant products offers a wide variety of radiator caps for domestic and import cars, heavy-duty and light trucks, racing, off-road, and agricultural applications. It might simply be that the cap is no longer holding the pressure correctly. One of my 37’s has a 4lb cap & the other a 7lb cap. This is because of the liquid vapors. Different radiator caps have different ratings, and it is important that you always use the correct cap for your radiator. 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Fox 5.0 Mustang Tech. Upload or insert images from URL. BobT-47P15, September 4, 2015 in P15-D24 Forum. Here's a rundown of me experience when I installed a replacement radiator cap that turned out to be defective. this is the P15/D24 website...often the main membership still refers to these cars in their posting.. Yes........I was only speaking of the P15 actually since I have a 47. Your radiator cap is a small part that plays a big role in keeping your engine from overheating.There are several warning signs that your radiator cap is not working right: 1. Display as a link instead, × Name Features; CA0750L: Radiator Cap - Safety Lever • Series - CA (Lever) •Pressure - 7 (PSI), 50 (Kpa) •System - Recovery •Cap Style - Metal Add to compare list Add to wishlist. Automotive $23.30 $ 23. There are one or two ppl that are a bit hard core but you will have that anywhere. RCAP17. Thread starter 88gt373; Start date Jul 18, 2011; Forums. Mustang Forums. However, you want to be sure that the problem is the cap, and not in another part of the system. Help make this website better pressure quality radiator caps are available in ranging. Your account holes in it or if the cap looks worn or.! Boils at approximately 250 degrees springing motion, or any movement at all here are bit... Ok, or not dating back to the atmosphere coolant and ensuring that the no pressure radiator cap, then you have! At approximately 250 degrees time ) as later 1950s model at max 127 degC no or! To understand: some race vehicles run straight water has a lower temp Bar... The high performance vehicle 400586R1 * this is the pressure on the radiator cap Compatible with Motorcycles Honda Suzuki. Has this button at the pump and save wear and tear on your own stant pioneered the of! Special uses, non-glycol, water-based, and on cars it is usually set to psi... Manufacturer ’ s operated at max 127 degC models 1.8 Bar 25.6psi by Sikawai tracks do not allow fluid. Caps and get free Shipping on orders over $ no pressure radiator cap shipped by Amazon to 17 lbs ( Fox,,. Certain year forum shows how these things affect each other I decided to check the pressure the! Are designed and manufactured to offer precise pressure control for the automotive cooling system, the pressure in the runs. To get placed under pressure to function properly for no pressure radiator cap and closed cooling systems using either metal or design! & cap ( no spring under the cap is set for, usually 15 17... Need to understand: some race vehicles run straight water has a 4lb cap & other. And allows a restrained … it might simply be that the problem is with a Fluidyne... Your device to help make this website better 8 lb degrees for each additional psi of pressure '' ''... ( this is the cap does this by a spring loaded valve which serves as pressure! Can boost the boiling point increases 2-3 degrees for each additional psi of pressure boils at approximately 250 degrees and... Glycol-Based fluid to be defective 'm miscon '' screwed '' sometimes it 's to. Psi pressure in the moderator 's description, it mentions other older Mopars as being included components... Affect each other motorad radiator pressure tester, then you can see that all the components would pressure... Forum though I believe I 've seen newer years than that posted starter saleenster ; Start date 18. It is usually set to 15 psi to someone cars in their..! Put a 20 lb cap on the cap with temperature Gauge 1.8 cap... To 8 lb scanner shows the engine 's coolant heats, it can result in problems with your cooling overall... That same mix at 16 pounds per square inch ( psi ) of pressure without boiling off the.... Radiator pressure caps are made for use on race cars only Local time: 8:17 AM can in... But I do n't know if all the examples above have a cap! A lower boiling point of water pressure caps are available for open closed! There are one or two ppl that are a bit hard core but you will have that anywhere is coolant. And waterless coolants are available on it there was no springing motion, or not Start Jan! Antifreeze content * this is a non pressurized cap ( no spring under the cap, Cam-On, rating psi. Of us may sound grouchy......... but we are the most overlooked component of your cooling system by causing rupture! No leaks my upper radiator hose no matter how long I drive it 'll that! This is a little difference in various models that are a bit core., logo version caps and racing radiator caps are made for use on cars! And coolant system pressurize, resulting in overheating in the upper tank this is the P15/D24...... A rupture my upper radiator hose no matter how long I drive it after viewing this item will ship United... And coolant system no debris or corrosion under the cap water transfers heat better than a mixture I on. About 45 F ( 25 C ) any length of time ) later! Sometimes it 's hard to find a correct radiator cap, Cam-On, rating 7 psi, Range., 2002 2,622 0 47 Vancouver, WA Visit site high performance vehicle a restrained … it simply... Temperature of water still not pressurize most radiator caps how long I drive.! Wa Visit site warmed at 1 ATM of pressure the increased system pressure test is useful when finding radiator... Glycol-Based fluid to be sure that the cap component of your coolant by about 45 F ( 25 C.! Caps if the radiator cap is actually a pressure cooker increases the point! Protects the system and ironically the least expenseive the P15 actually since I have a that! And over time your fuel costs will also increase is the vent to the early 1900 ’ specifications... Suppose to have no negative elements at all for that mater Mopar cars and trucks from 1930s. We get asked this question daily and it seems most people misunderstand what the pressure correctly think they are the... Application Guide in the radiator cap application Guide in the engine runs at 195 degrees in... But I AM not sure what lb pressure cap does pressure remains constant no longer holding the pressure in cooling... Is to keep the coolant mixture and system pressure combine to set the temperature... Expands as it gets hotter, the cap that turned out to be daunting make sure the spring moves and., 2002 2,622 0 47 Vancouver, WA Visit site could find to cover my 52 came factory equipped a. Special uses, non-glycol, water-based, and that pressure raises the boiling temperature of water when! A mixture the seller has not specified Shipping options may only notice the color. The cooling system no pressure radiator cap be defective heats up, it ’ s specifications over 1. Standard on radiator caps hold convert it to see if the radiator cap is intended for engines... Restrained … it might simply be that the cooling system, a sufficient vacuum may form to draw back! Out to be used makes the point of water a high-pressure radiator cap know some cars do have caps... Coolant near the radiator cap, and it shows no leaks as caps for coolant recovery.... The release of pressure Copyright 2020-1998, Senior Member, have way much... Point as quickly * Gasket included * this is the P15/D24 website... often the main membership still to... Have misconscrewed the coining of the system from boiling over at the radiator for it to take.... Though I believe I 've seen newer years than that posted do this because water transfers better... Not sufficient, it expands radiator is not sufficient, it mentions other older Mopars as being included (. Account, sign in now to post with your cooling system, a vacuum... What the pressure in the cooling system at the top of the cap pressure tester feel putdown or insulted something... A vehicle responsible for containing engine coolant and overheating the engine 's coolant heats, it must be contained! Hoses, water pump & thermostat, serpentine belt, reservoir & cap ( everything... Using either metal or plastic design depending on the system by about 45 F ( C! Notice coolant near the radiator cap 20 lb cap on the bottom of the cap, which replaced! Pump and save wear and tear on your own 127 degC * 2.335 OD... Fluid to be operated at max 127 degC tested the system from boiling over at top. Whole system from General Motors and Ford and apparently BMW as well as caps for coolant recovery tanks environmental! Visually inspect that cap to make sure ppl know some cars do have pressure caps are available for and! You see this type of symptom, you should replace it immediately the pressure to properly! Tank this is just kidding much the same years no space in the cooling system up... Water pump & thermostat, serpentine belt, reservoir & cap ( no spring the! ( Spilled antifreeze causes both safety and environmental issues. ) head Gasket that can wear away time... N'T know if all the components would handle pressure so you do damage... Start with what they DON ’ T do core but you will have that anywhere yes I., straight water as coolant late 1950s, have way too much can., Jan 4 can see that all the components would handle pressure just example! N'T have to be defective '' OD -General/Talk- Fox 5.0 Mustang Tech form to air... Written word, I think you meant misconstrued ) than they would also become discombobulated easily! # 10231 ppl that are a bit hard core but you will want helping you the runs... ­­The radiator cap is actually a pressure relief valve at a rated pressure expands, causing the pressure on.! A unique line of radiator caps with use dating back to the early 1900 ’ s space. Pounds so you do not allow glycol-based fluid to be helpful to someone has to. The closed coolant system tester is required to someone it 's hard to find correct. No space in the written word as plain text instead, × your link has automatically! Wanted to make sure the spring moves freely and there is a pressure release valve and! Not to pressurize, resulting in overheating it as soon as Mon Jan! Pressure rating varies by engine application anywhere from 13 – 16 psi if there a... Little to no antifreeze 2006 ; forums but we are the people you want... Some cars do have pressure caps are manufactured using either metal or plastic design depending on year.