- Answered by a verified Jeep Mechanic. overcooling (uncountable) . - posted in The Technical Forum Archive: This year as we all know at Silverstone there was the fuss over blown diffusers ? When an engine runs well in a hot weather, it's often a little too powefull in cold early morning air. But I'm going to go WAY , WAY out on a limb here and blame Randy Smith for this. 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." And if the engine is over heated it is to under cool. I have put about 4 thermostats in it all with the same results. 1967 SS396, Chevy Punch February 2007 Cover Car I sometimes thought it was because of overcooling. It's the rule rather than the exception to see frost forming on the injector hat of an alchohol dragster. this method of cooling utilizes the latent heat of water to obtain cooling with minimum water. 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. Modern electronic engine controls adjust cooling based on throttle to anticipate a temperature rise, and limit engine power output to compensate for finite cooling. What is meant when I am told that I am overcooling my engine? Answered July 25, 2018. This will result in metal to metal contact of the piston and cylinder wall leading to piston crown. When this happens, the engine is “overcooled” and never reaches the proper operating temperature. I want to use it on my next IC. Getting the engine too much cooled is called overcooling. As the answers before me stated, a faulty thermostat stuck open would overcool your engine in a low temprature environment. Thermostatic fan switch. I am interested in hearing what the guy's solution to the problem is?? The FORDification.com Forums. "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." 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 … Definition from Wiktionary, the free dictionary. over-+ coolingNoun []. D) Because the cold reservoir increases the power of the engine. Condensation of fuel can also cause poor lubrication. Jump to navigation Jump to search. C) Because the cold reservoir keeps the engine from overcooling. What are the symptoms of this and how does it affect my engine? Both under cooling and over cooling have individual disadvantages. You do the burnout to heat the engine as well as the tires. When you find out, let us know. what is engine "overrun" ? Reply. Engine overcooling?? It's the best way to discover useful content. Was running it with two cool clamps. High ambient temperature, driving at high thermal load causes consequences of overheating. 9 years ago. 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. 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. Due to thermostat stuck open, the coolant would constantly travel through the … Go ahead and login, it'll take only a minute. We use cookies to give you the best possible experience on our website. This results in poor warm up and heater performance, increased engine emissions and reduced fuel economy Can be burst open by cooling system pressure. Working: the water coming out of engine jacket is allowed to be heated to 100oC. 4.1 this system used for big-capacity stationary engines used for power generator. 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. 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 … What is meant when I am told that I am overcooling my engine? True. Computer cooling is required to remove the waste heat produced by computer components, to keep components within permissible operating temperature limits. Some engine controls shut down an engine or limit it to half throttle if it overheats. iii) The pump requires considerable power compared with the power required for the fan. 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 ) . Under cooling also keeps the engine in correct position and increase the life of the engine. Overcooling. Evaporation of lubricating oil that lubricates the piston and cylinder wall is also another reason of under 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. 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?). 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. An engine is said to be overcooled if it is running below the normal operating range. You must be logged in to read the answer. There was more to it that that but I suppose I could have overcooled it. A molded radiator hose fits only a specific year and make of vehicle. Overcooling can cause as much damage to an engine as overheating. The 1967-1972 Ford F-series Pickup Resource. overcooling (Noun) Excessive cooling, especially the excessive cooling of an engine iv) Initial and maintenance costs are higher. It should not be too cooled or too heated up. Decades ago, at the pond in Memphis TN. So, someone has taken that information and figured that the opposite can happen, and you can "over cool" an engine. Overcooling can cause as much damage to an engine as overheating. Login with username, password and session length. 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. When an engine overheats it’s a good idea to replace the thermostat. 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. Also, This failure prevents the flow of coolant to the radiator; possibly overheating the engine and causing damage. Effects of under cooling and over cooling: Engine should be cooled within a particular temperature limits. 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). Excessive cooling, especially the excessive cooling of an engine Brett has spoke on this subject I refer to more than once, hopefully he will be able to help you with your question. 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. I've had flameouts in manuvers & sitting on the stooge. 26 Replies 534 Views August 09, 2020, 02:00:57 PM by George Fruhling: Removel of Cox 09 glow head. Started by Bootlegger. Or at least the 4-2 shIft is more violent and not very pleasant. 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. And if the engine is over heated it is to under cool. This system is used for cooling of many types of industrial engines. Both under cooling and over cooling have individual disadvantages. The cooling system can be located conveniently at required place. In this system, the engine will be cooled because of the evaporation of the water in the cylinder jackets into steams. Ran the engine w/o the fan and it got to temp just fine. B) Because the cold reservoir keeps the engine from overheating. Find answer to specific questions by searching them here. The radiator's primary function is to store engine heat. v) Freeze of water in very cold areas becomes a problem. If the engine gets warmed up excessively, it should be cooled so as to keep the correct alignment of the engine. … Advantages of evaporative cooling system: i) The specific fuel consumption of water-cooled engine is less than that of the air-cooled engine. Above all, The consequences of an “open failure” may be less catastrophic than those of a “closed failure”. It means that someone thinks you're overcooling your engine, and they said so. When a thermostat is stuck open, it allows coolant to flow through the engine at all times. The 390 is the only engine I know of that has two deck heights, '70 and pre-'70. Thanks again, Steve . 2. Getting the engine too much cooled is called overcooling. What does it mean when you are told that you are overcooling your engine? 1. 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. I'm probably describing " loading up " . The pistons looked real good, I just didn't know what you can get away with. The engine will not heat up to operating temperature. Re: What is meant when I am told that I am overcooling my engine? The principle of this system is being taken from the high latent heat of vaporization of water by allowing it to evaporate in the cylinder jackets.