The 1967-1972 Ford F-series Pickup Resource. I am putting 195 thermostats in it and have gotten them from GM, Autozone, Napa, and Advance.The engine will reach about 160 and that is it. Re: What is meant when I am told that I am overcooling my engine? Download our mobile app and study on-the-go. What is meant when I am told that I am overcooling my engine? It's the rule rather than the exception to see frost forming on the injector hat of an alchohol dragster. Some people may get confused, buy a '70 block, stick the earlier pistons in it and wonder why it didn't turn out well. You do the burnout to heat the engine as well as the tires. what is engine "overrun" ? Over the years there have been many discussion on the forums about getting good head temperatures for our stunt engines and the need to run hot plugs and such, and Randy has mentioned many times that to achieve this, he cuts "heat dams" in the heads of engines that he reworks to help keep the combustion chamber hot and head temps up where they need to be. Was running it with two cool clamps. With neat sketch explain principal and working of evaporative cooling system. English [] Etymology []. When an engine overheats it’s a good idea to replace the thermostat. The radiator's primary function is to store engine heat. Started by frank mccune. Disadvantages of evaporative cooling system: ii) Serious damage may be caused to the engine within a short period of time in the case of failure of the cooling system. Working: the water coming out of engine jacket is allowed to be heated to 100oC. If you have too much coolant it will cause the engine to run cooler and cause a rich/lean situation with your fuel system. iv) Initial and maintenance costs are higher. over-+‎ coolingNoun []. We use cookies to give you the best possible experience on our website. Overcooling can cause as much damage to an engine as overheating. 1967 SS396, Chevy Punch February 2007 Cover Car 1. Nitro dragster engines will overcool at idle too. Severe overcooling trucks to be reworked with Check Valve/Stop in Radiator vent line as needed TIB / TEN to be released to cover this procedure Will finalize all recommendations prior to end of Sept Field testing of fuel economy on number of overcooled engines showed Minimal differences in … This can cause poor lubrication leading to loss of engine life. Also, This failure prevents the flow of coolant to the radiator; possibly overheating the engine and causing damage. High ambient temperature, driving at high thermal load causes consequences of overheating. Overcooling can cause as much damage to an engine as overheating. overcooling (Noun) Excessive cooling, especially the excessive cooling of an engine Both under cooling and over cooling have individual disadvantages. I am interested in hearing what the guy's solution to the problem is?? By continuing to use this site you consent to the use of cookies on your device as described in our … A guy told me several years ago that I could ruin an ABC engine by running it too cool ( rich )  before it is truely broken in. The only way to "overcool" an engine would be having your thermostat stuck open. Ran the engine w/o the fan and it got to temp just fine. This results in poor warm up and heater performance, increased engine emissions and reduced fuel economy Started by Bootlegger. iv) As far as design of cooling system is concerned, the engine size does not involve any serious problem. Save Share. a guy was having trouble tuning his Atlas Van Lines .60 engine. I'm probably describing "  loading up " . Skip to content 26 Replies 534 Views August 09, 2020, 02:00:57 PM by George Fruhling: Removel of Cox 09 glow head. - Answered by a verified Jeep Mechanic. Thermostat Stuck Open – Far and away, the most typical cause for the P0128 code is going to be a thermostat that is stuck open. ii) Uniform cooling of valve, cylinder head and cylinder is possible with water cooling. Thanks again, Steve . Reply. overcooling (uncountable) . Burning of and warping of exhaust valves setting up of thermal stresses in the cylinder, cylinder head and piston. And if the engine is over heated it is to under cool. Brett has spoke on this subject I refer to more than once, hopefully he will be able to help you with your question. What are the effects of engine under cooling and over cooling? Components that are susceptible to temporary malfunction or permanent failure if overheated include integrated circuits such as central processing units (CPUs), chipsets, graphics cards, and hard disk drives. It's the best way to discover useful content. this method of cooling utilizes the latent heat of water to obtain cooling with minimum water. Under cooling also keeps the engine in correct position and increase the life of the engine. In this system, the engine will be cooled because of the evaporation of the water in the cylinder jackets into steams. P0128 Causes: Chevy Silverado Fixing P0128 is usually a pretty easy thing to do, since 90% of the time it’s … 9 years ago. Go ahead and login, it'll take only a minute. iii) The pump requires considerable power compared with the power required for the fan. I saw a case of over-cooling once but it was with an rc boat. I've had flameouts in manuvers & sitting on the stooge. iii) It is necessary to keep the engine at the front for the mobile vehicles and air craft engines for air-cooling but this is not at all necessary with water-cooled engines. While Formula E racing cars aren’t burning fuel within the engine and don’t have engines with thousands of intricate moving parts, significant heat is generated when energy is drawn and returned to the battery and when the electric motors are being pushed hard (the McLaren-built unit in Mahindra’s M2Electro spins beyond 19,000rpm). I sometimes thought it was because of overcooling. You'll get subjects, question papers, their solution, syllabus - All in one app. Overheating can also cause pre ignition. And if the engine is over heated it is to under cool. The 390 is the only engine I know of that has two deck heights, '70 and pre-'70. Sure the 401 internals fit the high deck 390 but now it's a 401, not a 390 regardless of what is cast on the side of the block. You can "overcool" an IC engine running on methanol, but this will only occur at low revs and only at the intake, not the combustion chamber. Even if the '98 had a control valve, I can't see how a defective one would cause overcooling of the engine. I have put about 4 thermostats in it all with the same results. Jump to navigation Jump to search. Effects of under cooling and over cooling: Engine should be cooled within a particular temperature limits. This engine is apart and I checked a few spots in the cylinders, 4.253 is the max wear. So, someone has taken that information and figured that the opposite can happen, and you can "over cool" an engine. When you find out, let us know. It should not be too cooled or too heated up. Advantages of evaporative cooling system: i) The specific fuel consumption of water-cooled engine is less than that of the air-cooled engine. Modern electronic engine controls adjust cooling based on throttle to anticipate a temperature rise, and limit engine power output to compensate for finite cooling. The only thing I can think of at all was an OS35s that was long in the tooth and would have virtually zero compression after you landed. Answered July 25, 2018. You must be logged in to read the answer. What does it mean when you are told that you are overcooling your engine? If I had to fly again for at least 10 min I would flip it over and fill the case with fuel to cool it down (loading up?). An engine is said to be overcooled if it is running below the normal operating range. - posted in The Technical Forum Archive: This year as we all know at Silverstone there was the fuss over blown diffusers ? What are the symptoms of this and how does it affect my engine? You know, I have been around this stuff for along time, as long as this forum has been around, plus Stuka Stunt and years worth of reading model magazines before that, but I have to say that I have never ever heard that term,  "over cooled." The cooling system can be located conveniently at required place. B) Because the cold reservoir keeps the engine from overheating. The first phenomenon if gasoline engine operates at high temperature engine will start to detonate, and start to lose power under load as the combustion of heat and pressure exceed the octane rating of the fuel. Overcooling. The cooling circuit is such that coolant always maintained in liquid form but the steam formed is flashed off in a separate vessel as shown in Fig. 4.1 this system used for big-capacity stationary engines used for power generator. Finally, other concerns may dominate cooling system design. 2. A thermostat fails “open” if the return spring breaks or debris prevents the thermostat valve from fully seating or closing; allowing a steady flow of coolant to the radiator, overcooling the engine. What is meant when I am told that I am overcooling my engine? Getting the engine too much cooled is called overcooling. Another, albeit rare, possibility is that there are two hoses routed incorrectly and are bypassing the thermostat, so the coolant is simply travelling backwards, whereas the bypass would be going around the thermostat, which is why it cools down so quickly, and explains the sludge, the rest of the fluid isn't cooling the engine itself because the fans and thermostat are closing too quickly, holding … Excessive cooling, especially the excessive cooling of an engine One of the regulars told him to take one off. v) Compact engine design with minimum frontal area as possible. The engine will not heat up to operating temperature. Login with username, password and session length. Ran the engine with cardboard in front of the engine and it gets to temp just fine. I want to use it on my next IC. Can be burst open by cooling system pressure. "So, certainly your engine thermostat and the condition of your coolant in your engine, making sure that you've got adequate amount and that it's up-to-snuff is going to be important that way." Service Engine Soon– Other than the heater not working as good, the only other symptom of P0128 is typically the service engine soon light itself. Find answer to specific questions by searching them here. A molded radiator hose fits only a specific year and make of vehicle. It means that someone thinks you're overcooling your engine, and they said so. … Evaporation of lubricating oil that lubricates the piston and cylinder wall is also another reason of under cooling. Lube oil does not reach proper operating temperature. This may lead to cracking of them. If stuck, can cause overheating or overcooling. But if you want to get more technical there is another cause i can think of which is a dry sump + oil cooler set-up on an everyday city car. This system is used for cooling of many types of industrial engines. I spoke with Larry Barrikman from time to time , he told me the OPS .40s that George Aldrich set up for him ran hotter than the stock OPS .40s.... he " thought" it may have been because George rechromed the liners,, he  said he hadn't taken them apart so we never found exactly why. D) Because the cold reservoir increases the power of the engine. Or at least the 4-2 shIft is more violent and not very pleasant. When an engine runs well in a hot weather, it's often a little too powefull in cold early morning air. 3. Due to thermostat stuck open, the coolant would constantly travel through the … Thermostatic fan switch. When this happens, the engine is “overcooled” and never reaches the proper operating temperature. Getting the engine too much cooled is called overcooling. But I'm going to go WAY , WAY out on a limb here and blame Randy Smith for this. Computer cooling is required to remove the waste heat produced by computer components, to keep components within permissible operating temperature limits. Condensation of fuel can also cause poor lubrication. What would cause this?? Decades ago, at the pond in Memphis TN. It means that someone thinks you're overcooling your engine, and they said so. Quote from: frank mccune on August 06, 2020, 04:18:35 PM, Quote from: Ken Culbertson on August 07, 2020, 03:56:57 PM, Quote from: Dan McEntee on August 07, 2020, 09:18:40 PM, Quote from: John Leidle on August 07, 2020, 11:34:17 PM, Quote from: John Leidle on August 08, 2020, 02:10:41 PM, Quote from: RandySmith on August 08, 2020, 03:37:10 PM, Quote from: RandySmith on August 08, 2020, 07:01:33 PM, Quote from: John Leidle on August 08, 2020, 11:01:21 PM, Quote from: Lauri Malila on August 09, 2020, 02:15:26 AM. v) Freeze of water in very cold areas becomes a problem. Definition from Wiktionary, the free dictionary. Engine overcooling?? Horner and Whitmarsh got into a dispute, and one of the things they talked about was engine overrun (particularly when Horner referred to the concessions made to the mercedes powered cars ) . True. Over cooling results in the increase of viscosity of the lubricating oil, which in turn result … This will result in metal to metal contact of the piston and cylinder wall leading to piston crown. If the engine gets warmed up excessively, it should be cooled so as to keep the correct alignment of the engine. Above all, The consequences of an “open failure” may be less catastrophic than those of a “closed failure”. The pistons looked real good, I just didn't know what you can get away with. Over cooling results in the increase of viscosity of the lubricating oil, which in turn result in the increase of friction between the moving parts. C) Because the cold reservoir keeps the engine from overcooling. When a thermostat is stuck open, it allows coolant to flow through the engine at all times. Radiator hose. There was more to it that that but I suppose I could have overcooled it. 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