![]() The same could also be happening due to a bad head gasket but that will typically allow the coolant into the engine much easier than the lower seal on a precombustion chamber will so should be much easier to diagnose as being the problem.īeyond that I really don't know what else you can check, or do as you've already covered most of the basic checks already. If that's the case eventually it will erode away at the metal around the leak and you'll start seeing coolant getting into the engine when it's not running, but as long as it is running combustion chamber pressures are high enough to keep the coolant out. If your engine has precombustion chambers it's possible one of them didn't seal and combustion gasses are entering the coolant system that that way. You also said it had been overhauled and the problem started shortly thereafter. Even though it checks good (ie-the impeller is tight on the shaft) when you look at it, once the system heats up the impeller will slip causing a reduction in coolant flow and an overheating problem. The versatile Cat® D4 dozer (formerly D6K2) offers the power and precision to get jobs done quickly, plus gives you up to 30 percent more visibility in front of the blade. Another thing I haven't seen personally, but have heard about on several occasions, is a bad water pump. Superior maneuverability and fast steering response give this bulldozer the agility to get the job done quickly. ![]() Taking one apart, or removing it will usually cause the coolant to flow too fast (((not hanging around long enough to pick up heat like it needs to in the engine and flowing through the radiator too fast to transfer enough heat out of it))) again casing an overheating problem. 29259 lb (13272 kg) Net Power - ISO 9249. With an operating weight of 29,800 lbs (13,500 kg), the 130 horsepower (97 kW) Cat D4 dozer (formerly D6K) is optimized for smooth finish grading. ![]() Next, how did taking the center out of the thermostat work? Usually if a bad thermostat is causing one to overheat it's because it's stuck shut so no coolant can flow. Re: Cat D4d overheating in reply to Avalon Farm, 04-30-2013 12:22:49įirst, flushing the radiator might not be enough, it may need to be rodded out to clear out clogged tubes that the flush won't touch. Online B2B auction - Caterpillar D4D Bulldozer For Sale and Rent Online at The Best Rates from Machinery Planet. ![]()
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