Any contact can cause severe burns. This surface must be clean and free of corrosion. CORE- CAT C12 WATER PUMP, CAST# 176-6999: REMAN WATER PUMP CAT C12 3176B: C12 REMAN WATER PUMP, INCLUDES GASKETS AND BOLTS CAT W.P. Check all hose connections for leakage. Investigate the cause of coolant that has been found in the engine oil by removing the engine oil pan and investigating the cause of the leakage. Inspect the fan blades in order to ensure that the blades are not damaged or bent. Check the accuracy of the engine coolant temperature gauge and coolant temperature sensor if you find either of the following conditions: You can also use an Electronic Service Tool such as CAT ET to read the engine coolant temperature. Check the gauge for the exact pressure that is required to open the filler cap. A weep hole has been machined in the water pump housing in order to allow this coolant/seal lubricant to drain from the pump housing. Oil was clean when we changed it before we started spraying, so we haven't run it maybe 500 miles so hopefully the engine will be fine. Probably another question for Catguy!?!?!? Install the 6V-7775 Air Pressure Gauge in the port and measure the pump pressure. You can also wiggle the water pump shaft back and forth, noting if it has excessive play. Weep hole on the water pump is dry. Make a visual inspection of the cooling system before you begin testing. Cat C-12 Water Pump Motor Serial # 2KS04618 Call the following number for the part. I can't remember specifically with the c12, because i haven't worked on a lot of them... but, in 99.9% of cooling system water pumps, there is an airspace between the cooling system and the crankcase where a weep hole will leak coolant 'on it's way' to the oil side of the engine. The 9U-7400 Multitach Tool Group should be used in order to check the fan speed. When working on an engine that is running, avoid contact with hot parts and rotating parts. So you need a new fuel pump. The level of the coolant should not be more than 13 mm (0.5 inch) from the bottom of the filler neck. The chart also demonstrates this effect. Refer to the testing procedure in Operating Manual, NEHS0554. We have been using it on the water trailer. This leakage is required in order to provide lubrication for the water pump seals. 17: $237.55 $ 237. The C12 took its place and was a almost 12 liter engine. Works in same way a water pump works. Keep the water at the correct temperature for ten minutes. For an example, refer to the Illustration 1. Adding pure antifreeze as a makeup solution for the cooling system top-off is an unacceptable practice. Elevation also affects a pressure type cooling system. Ensure that the coolant level is above the top of the radiator cores. Inspect the fan drive belts for cracking or separation. 69: $294.15 $ 294. If an internal leak is found, it is absolutely necessary that the cause of the leakage be investigated prior to engine repair. Ensure that the differential pressure is within specifications. Start the engine. The waterpumps are tested to match stringent performance and endurance requirements. The addition of pure antifreeze will increase the concentration of glycol in the cooling system. Problems of C-12 engines; tend to be water pump weep hole can become plugged, thus when water pump seal leaks, it pushes coolant into the oil pan. Making sure your water pump is … The engine oil will have a milky appearance if contamination from the cooling system is present. Refer to the testing procedure in Operator Manual, NEHS0605. Use a piece of wire to suspend the water temperature regulator in the pan of hot water. When a diagnosis is made of a cooling system problem, both the temperature and the pressure must be checked. The following chart assists in determining the proper concentration of antifreeze to use. Stir the water in the pan. Personal injury can result from escaping fluid under pressure. Inspect the pressure cap and the sealing surface. It's a weep hole, telling you that the seal has gone. Cooling System Conditioner contains alkali. Cooling systems that are not regularly inspected and maintained may be the cause of increased engine temperatures. Dayco WP253K1BS Water Pump Kit. original equipment manufacturers. 1U-7297 Coolant/Battery Tester or 1U-7298 Coolant/Battery Tester. It had some sensors in the wrong places. The coolant level must be within specifications prior to testing the cooling system. Refer to the Specifications, "Water Temperature Regulator" for more information about the minimum distance for openings on the water temperature regulator. As the glycol concentration increases, the concentration of dissolved solids and undissolved chemical inhibitors in the cooling system also increases. The engine runs at a normal temperature, but a hot temperature is indicated. That is the weep hole of the water pump. Also, look for debris between the folded cores of the radiator. New bypass valves, new filter base, new oil pump… CAT WATER PUMP C15 DOME DRIVE. If you think there is a leak, inspect the coolant reservoir. We just had to overhaul our c-12 at work, with at 500k because of water in the oil, not sure what they exactly decided cased it. By Geoff Weeks - Sunday, April 03, 2011 4:28 PM: The cylinder head gasket, their  failures tend to be other towards the cam area.Troubleshooting, IF it isn't a severe case: We warm up the engine, pull in the shop,  put 10-15 psi on the radiator/cooling system, drain the hot oil out, pull the oil pan off. If necessary, place a cover over part of the radiator in order to cause a restriction of the coolant flow. Coolant has not been observed leaking from the engine. The proper glycol concentration will ensure adequate freeze protection. Cat water pumps are built to extremely tight metal-to-metal clearances, manufactured for peak system efficiency, and tested to match stringent performance and endurance requirements. Next: the cylinder head gasket can seep The water pump pressure should be 100 to 125 kPa (15 to 18 psi). Intermittent leakage of small amounts of coolant from this hole is not an indication of water pump seal failure. No external leaks either. Dorr, Michigan Engine Make Caterpillar. If internal leakage is suspected, refer to "Testing The Radiator And Cooling System For Leaks" for instructions on pressure testing the cooling system. So now oil can get into your fuel, or worse, fuel can get into the oil. Ensure that the filler cap's pressure rating conforms to Caterpillar's application guidelines. No loss of coolant is found. Making contact with a running engine can cause burns from hot parts and can cause injury from rotating parts. Personal injury can result from hot coolant, steam and alkali. Just fill it move it to a field a stop again then repeat the process. Are C12 Cat engines a good motor - Engines - Let's Truck Problems of C-12 engines; tend to be water pump weep hole can become plugged, thus when water pump seal leaks, it pushes coolant into the oil pan. Cat® C12 Diesel Marine Propulsion Engines, with ratings of 340-490 bhp (254-366 bkW) at 1800-2300 rpm, meet IMO II emission standards with the exception of the 497 mhp (490 bhp) rating at 2300 rpm which meets IMO I emissions standards. Do not replace the water pump seals unless you find a continuous flow of coolant, or a large amount of coolant, that is leaking from the water pump housing. The water temperature regulator must be below the surface of the water. Temperature and pressure work together. Found some loads to get me to Bismarck to have it checked. Had same problem 2 years ago. Check the engine oil dipstick for signs of an internal coolant leak. The trouble shot that Cat guy has is spot on. Caterpillar C12 (Stock #522-11513) Engines & Engine Parts / Water Pumps. Keep your water pumps performing properly with high-quality replacement parts. Cat® Water Pumps are built to extremely tight metal-to-metal clearances. Home ... on the B and C there was a kit installed when engine was new and dripping at the weep hole some that was a peice of foam stuck in there so it would not drip and would evaporate as it leaked instead of dripping. Step 6: Inspect the coolant reservoir. (1) Sealing surface of both filler cap and radiator. The radiator and all lines to heaters or the engine contain hot coolant or steam. Also did not notice any leaks from the left side of the engine- from inside, like on a c-12, from the cam area. Avoid contact with skin and eyes. The engine runs at a temperature that is too hot, but the coolant gauge indicates a normal temperature. By Geoff Weeks - Sunday, October 24, 2010 2:09 PM If it is leaking, the water pump will have to be replaced. Scan tool for Detroit DDEC IV Akkaid posted Jan 7, 2021 at 6:01 AM. NEW WATER PUMP, W/ GASKETS & ORINGS: Price: $53.00: $75.00: $134.09: $140.60: $203.62: $222.00: $544.64: Frequently Bought Together. Use the following procedure to check the cooling system for leaks: The cooling system is not considered to have leakage if the following conditions exist: The cooling system may have an internal leak if the following conditions exist: An internal leak can also be detected by regularly scheduled oil sampling. $1200 later, Cat says engine is running and pulling perfectly. You will be getting a complete water pump, WITH a clean, open weep hole passage, too.If your big, short hose between rear of water pump and oil cooler is getting old and bulged out, I would definitely replace it, too. Heat water in a pan until the temperature of the water is 98°C (208°F). Check the coolant level in the cooling system. Slowly remove the pressure cap. Either of the testers can be used to check the freeze point of the coolant. CAT WATER PUMP 3176. A differential pressure can be measured between plug (1) on water manifold assembly (4) and plug (8) on the inlet side of water pump (7). The cooling system does not hold the test pressure for the required five minutes. Water pump, cheapest thing to check and fix. Look for damage to the seals and damage to the cap's sealing surface. Cat water pump. To check for the amount of pressure that is required to open the filler cap, use the following procedure: Carefully inspect the filler cap. Most water pumps have a drain opening or weep hole that prevents water from getting past the second seal into the bearings and the rest of the engine if it is a gear driven pump. A pressure type cooling system tends to inhibit the formation of air bubbles within the cooling system. i am no expert though. You could not get to the boost sensor witch was stuck in the ECM and it was down low with a hose running from the air intake to it and water would from in it and steel in the sensor which was lower. when the dipstick was pulled. Two most common items are: 1. water pump weep hole is plugged = thus the failed water pump seal is now pushing coolant into the weep hole area, BUT it can't leak externally(=plugged with grud), thus it pushs on the oil seal, and pushs coolant into the geartrain area and you get coolant in the oil.2. This group can be used to check temperatures in several different parts of the cooling system. Check the operation of the water temperature regulator by measuring the regulator's opening. CAT C12 Timing Cover - 1694172 A weep hole has been machined in the water pump housing in order to allow this coolant/seal lubricant to drain from the pump housing. Ensure that the engine is cool and loosen the pressure cap in order to relieve any pressure from the cooling system. 15: $133.17 $ 133. The mechanical forces that are created by the pumping action of the water pump are considered to be a common cause of cavitation. Dripping water or a rusty appearance at this location indicates a pump shaft or seal failure. Cooling system pressure will have an effect on the cooling system temperature. The engine must be cold and the engine must not be running. ... Cat C12 injector install... Hopeaholic posted Jan 7, 2021 at 10:57 AM. Check for indications of coolant leakage from the water pump seal. Buy Rareelectrical NEW WATER PUMP COMPATIBLE WITH CATERPILLAR ENGINE 3176 3176B C-10 C-12 C10 C12 OR0705 OR8767: Water Pumps - Amazon.com FREE … So, we take it to Fargo and have them run it on the dyno. Start looking for coolant drops.If it comes down the right side of the front cover, then the water pump need replaced.If it comes down the internal, side of the block, by the cam area, or drips off the cam lobes= head gasket . Install one of the following thermometers: Any temperature indicator of known accuracy can also be used to make this check. Intermittent leakage of small amounts of coolant from this hole is not an indication of water pump seal failure. Make sure that air flow through the radiator is not restricted. Even barred the engine over until my arms got too tired to do it any more with no leaks. Refer to the testing procedure in Special Instruction, SEHS8712. Inspect the following components for any foreign substances: Remove any deposits that are found on these items, and remove any material that is found on these items. Ensure that the water pump's weep hole is not plugged with debris. For more information on coolant specifications, refer to the Operation and Maintenance Manual, "General Coolant Information". Free shipping on many items | Browse your favorite brands | affordable prices. 2. This check will determine if the water pump is operating correctly. Water pump outlet pressure can be checked on water manifold assembly (3) next to coolant temperature sensor (2). I'll second the water pump ours has had at least 2 in 800,000 miles. Good Used Caterpillar C12 oil pump 9Y-3794, and oil pump elbow, 122-0760. 55: Sold By: Accu Auto Parts: This engine has a pressure type cooling system. At operating temperature, engine coolant is hot and under pressure. The testers can be used for antifreeze/coolants that contain ethylene or propylene glycol. Engine Model C12. This item CAT WATER PUMP C12. If the distance is less than 10.4 mm (0.41 inch), replace the water temperature regulator. The internal seal on the water pump shaft has failed. Next: the cylinder head gasket can seep coolant into the oil pan, BUT the new procedure and head gasket is a excellent repair= have great success, Testing The Radiator And Cooling System For Leaks. Check all cooling system hoses for cracking or stretching. The first engine had a ECM on it like a 3046 PEEC. Caterpillar preventive maintenance expert, Nick Rummel, shows you how to identify potential problems by performing a simple water pump weep hole inspection. Oil cooler or injector cups would be my hope. The water temperature regulator must be away from the sides and the bottom of the pan. At 9000 miles, I notice a small loss of oil pressure. I'm thinking head gasket/head? Pressurize the cooling system to a pressure that is 20 kPa (3 psi) greater than the rated pressure of the filler cap. If you see water dripping from that weep hole it is time to rebuild the pump. Look for bent core fins between the folded cores of the radiator. This type of cooling system can be operated in a safe manner at a temperature higher than the normal boiling point (steam) of water. The testers are identical except for the temperature scale. After the engine cools, carefully loosen the filler cap. sure glad catguy is here to actually help. Cavitation is the formation of air bubbles in low pressure areas in liquids. Ensure that the cause of any internal leakage is addressed prior to repairing the leak. Parts & Repair Options By Industry call Electric Product Suppport The 9S-8140 Pressurizing Pump is used to test the filler cap and the cooling system for leaks. Air bubbles are the cause of air pockets, or steam pockets, which can damage the cooling system. Note: Leaks at the weep hole or at the water pump gasket are typically caused by contaminated coolant (or dirty coolant). A pressure type cooling system helps prevent cavitation in the water pump. After ten minutes, remove the water temperature regulator. This allows the temperature to radiate throughout the pan. Remove the plugs (1). The names Caterpillar, John Deere, JD, JCB, Hyundai Or could it be something else like water pump, injector cups etc. Look in the radiator filler neck for air bubbles or combustion gas in the cooling system. This chart demonstrates the effect of pressure on the boiling point (steam) of water. Compare the gauge's reading with the specification of the filler cap: If the filler cap is damaged, replace the filler cap. If a pressure indication is shown on the indicator, push the release valve in order to relieve pressure before removing any hose from the radiator. Read the two level indicators for the cooling system that are in the top of the radiator. Truck/engine sat for a … A loss of coolant is found. Remove filler cap slowly to relieve pressure only when engine is stopped and radiator cap is cool enough to touch with your bare hand. injector cup problems in the past for us have resulted in fuel in the coolant and would boil over the over flow. Check the coolant solution frequently in cold weather for the proper glycol concentration with the 1U-7297 Coolant/Battery Tester or 1U-7298 Coolant/Battery Tester. or any other original equipment manufacturers are registered trademarks of the respective A reman water pump, comes assembled with the whole water pump and oil seal and gear. The 8T-2700 Blowby/Air Flow Indicator is used to check the air flow through the radiator core. Internal leakage of engine coolant will be indicated by a scheduled oil sampling result that indicates a positive test result for ethylene glycol in the engine oil. If the cooling system is equipped with a sight glass, the level of the coolant should be to the proper level on the sight glass. $475.00 . Most water pumps have a "weep" hole, or a bypass hole that lets water flow through it in case the pump bearings and seals have failed. The reading on the water temperature indicator should agree with the test thermometer within the tolerance range of the water temperature indicator. Add an antifreeze and water mixture with a freeze protection that is similar to the current concentration that is found in the system. Slowly release the pressure from the cooling system and remove the filler cap. 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Get the best deals on Cat Water Pump when you shop the largest online selection at eBay.com. If the cause of the leak is not determined, repairing the leakage may not resolve the problem. Use the 4C-6500 Digital Thermometer for the diagnosis of both overheating and overcooling problems. Had a few C12 put oil in the water, most times it is water pump but some times is head gasket leaks collant down past the cam shaft. Note: If the weep hole becomes obstructed, then coolant may be forced past the water pump's gasket into the crankcase. All names, descriptions, numbers and symbols are used for reference purposes only. Remove plug (1) from water manifold assembly (3). Thanks. C12 REMAN: Water Pump for a Cat C12. Run the engine until the temperature reaches the desired range according to the test thermometer. 1. water pump weep hole is plugged = thus the failed water pump seal is now pushing coolant into the weep hole area, BUT it can't leak externally(=plugged with grud), thus it pushs on the oil seal, and pushs coolant into the geartrain area and you get coolant in the oil. The cooling system retains a constant test pressure for at least five minutes. One cause for a pressure loss in the cooling system can be a damaged seal on the radiator filler cap. 1-866-755-3576. Remove the water temperature regulator from the engine. Refer to Disassembly and Assembly, "Water Pump" for the replacement procedure of the water pump seals. To match stringent performance and endurance requirements problem, both the temperature the. Repair Options by Industry call Electric Product Suppport this item Cat water pump will have milky... 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Thermometer for the part dipstick for signs of an internal leak is found, it is absolutely necessary that blades! Posted Jan 7, 2021 at 10:57 AM constant test pressure for at least minutes! Found, it is time to rebuild the pump housing that weep hole is not restricted REMAN! Proper concentration of dissolved solids and undissolved chemical inhibitors in the coolant level is above the top the! Rating for your application, refer to the test pressure for at least 2 in 800,000 miles 0.5 inch from! Pressure will have a milky appearance if contamination from the sides and the cooling system before you begin.... Loads to get me to Bismarck to have it checked ( or dirty coolant ) be past. Is a leak, inspect the coolant level is above the top of the cooling system top-off an.