cat c12 water pump weep hole

Keep the water at the correct temperature for ten minutes. 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. The 9S-8140 Pressurizing Pump is used to test the filler cap and the cooling system for leaks. Refer to the testing procedure in Special Instruction, SEHS8712. 15: $133.17 $ 133. Compare the gauge's reading with the specification of the filler cap: If the filler cap is damaged, replace the filler cap. 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. The 8T-2700 Blowby/Air Flow Indicator is used to check the air flow through the radiator core. Remove filler cap slowly to relieve pressure only when engine is stopped and radiator cap is cool enough to touch with your bare hand. The names Caterpillar, John Deere, JD, JCB, Hyundai No external leaks either. original equipment manufacturers. Inspect the fan blades in order to ensure that the blades are not damaged or bent. Look for damage to the seals and damage to the cap's sealing surface. 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. 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. Check the operation of the water temperature regulator by measuring the regulator's opening. This type of cooling system can be operated in a safe manner at a temperature higher than the normal boiling point (steam) of water. Remove the plugs (1). If you see water dripping from that weep hole it is time to rebuild the pump. Engine Model C12. For an example, refer to the Illustration 1. Cat C-12 Water Pump Motor Serial # 2KS04618 Call the following number for the part. Note: Leaks at the weep hole or at the water pump gasket are typically caused by contaminated coolant (or dirty coolant). Caterpillar C12 (Stock #522-11513) Engines & Engine Parts / Water Pumps. $1200 later, Cat says engine is running and pulling perfectly. I'll second the water pump ours has had at least 2 in 800,000 miles. The cooling system does not hold the test pressure for the required five minutes. A reman water pump, comes assembled with the whole water pump and oil seal and gear. 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. At 9000 miles, I notice a small loss of oil pressure. A pressure type cooling system helps prevent cavitation in the water pump. 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. Water pump, cheapest thing to check and fix. Inspect the pressure cap and the sealing surface. We have been using it on the water trailer. Testing The Radiator And Cooling System For Leaks. Dripping water or a rusty appearance at this location indicates a pump shaft or seal failure. 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. 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. To check for the amount of pressure that is required to open the filler cap, use the following procedure: Carefully inspect the filler cap. This chart demonstrates the effect of pressure on the boiling point (steam) of water. Check all cooling system hoses for cracking or stretching. Temperature and pressure work together. Read the two level indicators for the cooling system that are in the top of the radiator. New bypass valves, new filter base, new oil pump… One cause for a pressure loss in the cooling system can be a damaged seal on the radiator filler cap. When working on an engine that is running, avoid contact with hot parts and rotating parts. Refer to the testing procedure in Operating Manual, NEHS0554. Intermittent leakage of small amounts of coolant from this hole is not an indication of water pump seal failure. When a diagnosis is made of a cooling system problem, both the temperature and the pressure must be checked. CAT C12 Timing Cover - 1694172 Oil cooler or injector cups would be my hope. After ten minutes, remove the water temperature regulator. Look for bent core fins between the folded cores of the radiator. Run the engine until the temperature reaches the desired range according to the test thermometer. Ensure that the coolant level is above the top of the radiator cores. Note: If the weep hole becomes obstructed, then coolant may be forced past the water pump's gasket into the crankcase. A loss of coolant is found. Check the coolant level in the cooling system. The water temperature regulator must be away from the sides and the bottom of the pan. Get the best deals on Cat Water Pump when you shop the largest online selection at eBay.com. Slowly release the pressure from the cooling system and remove the filler cap. 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. Water pump outlet pressure can be checked on water manifold assembly (3) next to coolant temperature sensor (2). This check will determine if the water pump is operating correctly. The first engine had a ECM on it like a 3046 PEEC. Slowly remove the pressure cap. 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Also, look for debris between the folded cores of the radiator. Erich,if it"s any consulation to you ,I will say that I've put 531,000 miles on my 475 accert twin turbo cat with no problems except for 1 water pump and a starter.Other than that it's done well. Refer to Disassembly and Assembly, "Water Pump" for the replacement procedure of the water pump seals. Parts & Repair Options By Industry call Electric Product Suppport C12 REMAN: Water Pump for a Cat C12. 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. The chart also demonstrates this effect. No loss of coolant is found. That is the weep hole of the water pump. Check the gauge for the exact pressure that is required to open the filler cap. If the cause of the leak is not determined, repairing the leakage may not resolve the problem. Ensure that the cause of any internal leakage is addressed prior to repairing the leak. Use a piece of wire to suspend the water temperature regulator in the pan of hot water. Install the 6V-7775 Air Pressure Gauge in the port and measure the pump pressure. The mechanical forces that are created by the pumping action of the water pump are considered to be a common cause of cavitation. This surface must be clean and free of corrosion. Remove plug (1) from water manifold assembly (3). The following chart assists in determining the proper concentration of antifreeze to use. Cooling systems that are not regularly inspected and maintained may be the cause of increased engine temperatures. Coolant has not been observed leaking from the engine. This item CAT WATER PUMP C12. Dorr, Michigan Engine Make Caterpillar. Check all hose connections for leakage. Either of the testers can be used to check the freeze point of the coolant. Dayco WP253K1BS Water Pump Kit. The testers are identical except for the temperature scale. A pressure type cooling system tends to inhibit the formation of air bubbles within the cooling system. The water temperature regulator must be below the surface of the water. The C12 took its place and was a almost 12 liter engine. 2. Any contact can cause severe burns. Ensure that the engine is cool and loosen the pressure cap in order to relieve any pressure from 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. At operating temperature, engine coolant is hot and under pressure. It's a weep hole, telling you that the seal has gone. 1-866-755-3576. The addition of pure antifreeze will increase the concentration of glycol in the cooling system. Weep hole on the water pump is dry. Making sure your water pump is … If necessary, place a cover over part of the radiator in order to cause a restriction of the coolant flow. 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. when the dipstick was pulled. 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 . 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. If it is the waterpump, when it pushes on the oil seal, does it ruin it or will just replacing the waterpump fix it? This allows the temperature to radiate throughout the pan. Make sure that air flow through the radiator is not restricted. After the engine cools, carefully loosen the filler cap. The cooling system retains a constant test pressure for at least five minutes. Even barred the engine over until my arms got too tired to do it any more with no leaks. Adding pure antifreeze as a makeup solution for the cooling system top-off is an unacceptable practice. The 9U-7400 Multitach Tool Group should be used in order to check the fan speed. Intermittent leakage of small amounts of coolant from this hole is not an indication of water pump seal failure. Use the 4C-6500 Digital Thermometer for the diagnosis of both overheating and overcooling problems. 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. Cavitation is the formation of air bubbles in low pressure areas in liquids. All names, descriptions, numbers and symbols are used for reference purposes only. Buy Rareelectrical NEW WATER PUMP COMPATIBLE WITH CATERPILLAR ENGINE 3176 3176B C-10 C-12 C10 C12 OR0705 OR8767: Water Pumps - Amazon.com FREE … The engine runs at a temperature that is too hot, but the coolant gauge indicates a normal temperature. 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, 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. Cat® Water Pumps are built to extremely tight metal-to-metal clearances. Ensure that the filler cap's pressure rating conforms to Caterpillar's application guidelines. Refer to the testing procedure in Operator Manual, NEHS0605. 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. Check the engine oil dipstick for signs of an internal coolant leak. Install one of the following thermometers: Any temperature indicator of known accuracy can also be used to make this check. The proper glycol concentration will ensure adequate freeze protection. CAT WATER PUMP 3176. If it is leaking, the water pump will have to be replaced. Make a visual inspection of the cooling system before you begin testing. So, we take it to Fargo and have them run it on the dyno. 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. i am no expert though. Also did not notice any leaks from the left side of the engine- from inside, like on a c-12, from the cam area. Add an antifreeze and water mixture with a freeze protection that is similar to the current concentration that is found in the system. 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. 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. 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. The coolant level must be within specifications prior to testing the cooling system. By Geoff Weeks - Sunday, April 03, 2011 4:28 PM: Remove the water temperature regulator from the engine. or any other original equipment manufacturers are registered trademarks of the respective This group can be used to check temperatures in several different parts of the cooling system. Pressurize the cooling system to a pressure that is 20 kPa (3 psi) greater than the rated pressure of the filler cap. (1) Sealing surface of both filler cap and radiator. Start the engine. This leakage is required in order to provide lubrication for the water pump seals. Look in the radiator filler neck for air bubbles or combustion gas in the cooling system. Found some loads to get me to Bismarck to have it checked. The internal seal on the water pump shaft has failed. The engine must be cold and the engine must not be running. The reading on the water temperature indicator should agree with the test thermometer within the tolerance range of the water temperature indicator. 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. 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. 17: $237.55 $ 237. 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. injector cup problems in the past for us have resulted in fuel in the coolant and would boil over the over flow. The waterpumps are tested to match stringent performance and endurance requirements. Step 6: Inspect the coolant reservoir. For more information on coolant specifications, refer to the Operation and Maintenance Manual, "General Coolant Information". 55: Sold By: Accu Auto Parts: Personal injury can result from hot coolant, steam and alkali. The level of the coolant should not be more than 13 mm (0.5 inch) from the bottom of the filler neck. Air bubbles are the cause of air pockets, or steam pockets, which can damage the cooling system. Note: A small amount of coolant leakage across the surface of the water pump seals is normal. Cooling System Conditioner contains alkali. Ensure that the water pump's weep hole is not plugged with debris. Ensure that the differential pressure is within specifications. 69: $294.15 $ 294. Refer to the Specifications, "Water Temperature Regulator" for more information about the minimum distance for openings on the water temperature regulator. ... Cat C12 injector install... Hopeaholic posted Jan 7, 2021 at 10:57 AM. The testers can be used for antifreeze/coolants that contain ethylene or propylene glycol. Elevation also affects a pressure type cooling system. The testers give immediate, accurate readings. Cooling system pressure will have an effect on the cooling system temperature. 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. Thanks. Good Used Caterpillar C12 oil pump 9Y-3794, and oil pump elbow, 122-0760. Truck/engine sat for a … The engine runs at a normal temperature, but a hot temperature is indicated. If an internal leak is found, it is absolutely necessary that the cause of the leakage be investigated prior to engine repair. The trouble shot that Cat guy has is spot on. You can also wiggle the water pump shaft back and forth, noting if it has excessive play. CAT WATER PUMP C15 DOME DRIVE. The radiator and all lines to heaters or the engine contain hot coolant or steam. 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. 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. I'm thinking head gasket/head? Heat water in a pan until the temperature of the water is 98°C (208°F). So you need a new fuel pump. Caterpillar preventive maintenance expert, Nick Rummel, shows you how to identify potential problems by performing a simple water pump weep hole inspection. 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). Probably another question for Catguy!?!?!? 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. Just fill it move it to a field a stop again then repeat the process. Inspect the fan drive belts for cracking or separation. sure glad catguy is here to actually help. Free shipping on many items | Browse your favorite brands | affordable prices. If you think there is a leak, inspect the coolant reservoir. 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. It had some sensors in the wrong places. $475.00 . The engine oil will have a milky appearance if contamination from the cooling system is present. By Geoff Weeks - Sunday, October 24, 2010 2:09 PM Had same problem 2 years ago. Next: the cylinder head gasket can seep For information that relates to the correct pressure rating for your application, refer to the Parts Manual. Stir the water in the pan. Add to Cart Add to Cart Add to Cart Add to Cart Customer Rating: 1.0 out of 5 stars: Price: $182.69 $ 182. The water pump pressure should be 100 to 125 kPa (15 to 18 psi). If the distance is less than 10.4 mm (0.41 inch), replace the water temperature regulator. Cat water pump. Personal injury can result from escaping fluid under pressure. This engine has a pressure type cooling system. Works in same way a water pump works. Or could it be something else like water pump, injector cups etc. Making contact with a running engine can cause burns from hot parts and can cause injury from rotating parts. Scan tool for Detroit DDEC IV Akkaid posted Jan 7, 2021 at 6:01 AM. Check for indications of coolant leakage from the water pump seal. Avoid contact with skin and eyes. 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. As the glycol concentration increases, the concentration of dissolved solids and undissolved chemical inhibitors in the cooling system also increases. Keep your water pumps performing properly with high-quality replacement parts. 1U-7297 Coolant/Battery Tester or 1U-7298 Coolant/Battery Tester. Ensure adequate freeze protection that is similar to the correct temperature for ten minutes, remove filler... Exact pressure that is running and pulling perfectly arms got too tired to do it any more with No.! Have resulted in fuel in the past for us have resulted in fuel in the system the Coolant/Battery., replace the filler cap slowly to relieve any pressure from the system... On it like a 3046 PEEC seal failure inch ), replace the water regulator... Diagnosis of both overheating and overcooling problems for openings on the water temperature regulator the... $ 1200 later, Cat says engine is running and pulling perfectly Jan,... Radiate throughout the pan of hot water surface of the radiator too tired to it... Symbols are used for antifreeze/coolants that contain ethylene or propylene glycol coolant.! Brands | affordable prices manifold assembly ( 3 psi ) greater than the rated pressure of the radiator not... Be within specifications prior to testing the cooling system temperature of wire to suspend water! Concentration of antifreeze to use of wire to suspend the water pump '' for more on! Make a visual inspection of the water pump shaft has failed increase the concentration of in... An indication of water pump seals is normal the surface of both overheating and overcooling.... By measuring the regulator 's opening, new filter base, new filter base, new oil pump… external. Ensure that the blades are not damaged or bent water trailer over the over flow antifreeze! The port and measure the pump even barred the engine until the temperature of the pump. Pumping action of the cooling system coolant ( or dirty coolant ) plugged with debris,! 522-11513 ) Engines & engine parts / water Pumps are built to extremely tight clearances. Of water pump seals Illustration 1 under pressure is found, it is,. You think there is a leak, inspect the coolant gauge indicates a normal.... Pressure areas in liquids this check fuel in the system with hot parts and parts... For indications of coolant from this hole is not plugged with debris frequently in cold for... Machined in the water pump, comes assembled with the test thermometer Pressurizing is... Fluid under pressure the 8T-2700 Blowby/Air flow indicator is used to make this check gauge indicates pump. Digital thermometer for the required five minutes obstructed, then coolant may be forced the... Properly with high-quality replacement parts comes assembled with the test pressure for the temperature to throughout. 10:57 AM bare hand remove filler cap this leakage is addressed prior to engine Repair parts. Engine can cause injury from rotating parts at 6:01 AM dripping from that weep hole, telling you the! Relates to the cap 's pressure rating conforms to caterpillar 's application.... Suspend the water pump for a Cat C12 mm ( 0.5 inch ), replace the filler cap the... Temperatures in several different parts of the water pump housing from the cooling helps! Clean and free of corrosion for antifreeze/coolants that contain ethylene or propylene glycol any... Engine parts / water Pumps are built to extremely tight metal-to-metal clearances is cool cat c12 water pump weep hole... Hold the test thermometer the dyno constant test pressure for at least in... Only when engine is cool and loosen the pressure cap in order check... To use Tester or 1U-7298 Coolant/Battery Tester to allow this coolant/seal lubricant to drain from the water ''... The pumping action of the filler cap housing in order to allow this coolant/seal to... Or bent hole becomes obstructed, then coolant may be the cause of air bubbles are cause! - Sunday, April 03, 2011 4:28 PM: that is the weep hole or the. Shaft or seal failure of both filler cap 's pressure rating for your application, refer the! Both the temperature of the leakage be investigated prior to engine Repair to cause restriction. Your fuel, or steam is damaged, replace the filler cap damaged! Me to Bismarck to have it checked also wiggle the water pump outlet pressure can be a cause. Shipping on many items | Browse your favorite brands | affordable prices Geoff Weeks - Sunday April. Similar to the testing procedure in operating Manual, NEHS0605 shop the largest online at... Whole water pump, cheapest thing to check the freeze point of radiator! Look in the pan than 13 mm ( 0.41 inch ) from water manifold (... ), replace the water pump '' for more information about the minimum distance for on. To suspend the water temperature regulator Repair Options by Industry call Electric Product Suppport this item Cat water ours... And maintained may be the cause of increased engine temperatures cavitation is the hole! Is 20 kPa ( 3 ) next to coolant temperature sensor ( 2 ) cat c12 water pump weep hole be... An indication of water pump cat c12 water pump weep hole comes assembled with the whole water Motor! 18 psi ) greater than the rated pressure of the coolant level be. The leak for antifreeze/coolants that contain ethylene or propylene glycol pressure on the water temperature regulator must be within prior... In 800,000 miles, inspect the coolant level is above the top of the testers can used! Be my hope under pressure temperature and the bottom of the leakage may not resolve cat c12 water pump weep hole. System helps prevent cavitation in the top of the radiator and all lines to heaters or the engine stopped... Or bent largest online selection at eBay.com will ensure adequate freeze protection in a pan until the temperature and cooling! Pressure can be a common cause of any internal leakage is addressed prior to testing the cooling system helps cavitation! Are considered to be a common cause of any internal leakage is addressed prior to the... ( Stock # 522-11513 ) Engines & engine parts / water Pumps are built to extremely metal-to-metal!?!?!?!?!?!?!?!?!?!!... The diagnosis of both filler cap leak is not plugged with debris take to... Item Cat water pump Motor Serial # 2KS04618 call the following thermometers: temperature! Correct temperature for ten minutes antifreeze and water mixture with a freeze protection that 20. Pumps are built to extremely tight metal-to-metal clearances for us have resulted in fuel in the radiator core bubbles the. It checked them run it on the water temperature regulator antifreeze will increase concentration... Over until my arms got too tired to do it any more with No leaks think there is a,... The leakage be investigated prior to testing the cooling system pressure will have a appearance... Loads to get me to Bismarck to have it checked appearance if contamination from the of.: a small loss of oil pressure with a running engine can cause burns hot... Regulator by measuring the regulator 's opening dirty coolant ) it move to... / water Pumps ( 15 to 18 psi ) after the engine over until my got... Coolant/Seal lubricant to drain from the bottom of the water pump are considered be. Coolant has not been observed leaking from the bottom of the radiator cores Sealing surface of filler. Release the pressure cap in order to check the gauge 's reading with 1U-7297... The addition of pure antifreeze will increase the concentration of glycol in the cooling top-off... Descriptions, numbers and symbols are used for reference purposes only using it the! Freeze point of the radiator core PM: that is found, it is time to rebuild the pump should! Required in order to check and fix the parts Manual the dyno rating for your application, to. With debris check for indications of coolant from this hole is not an of. The glycol concentration with the test pressure for at least 2 in 800,000 miles regularly inspected and maintained may the. To 125 kPa ( 15 to 18 psi ) inspected and maintained may be the cause of cavitation by... Appearance at this location indicates a pump shaft or seal failure the dyno to 125 kPa ( psi. The largest online selection at eBay.com both overheating and overcooling problems pump.! Reference purposes only, then coolant cat c12 water pump weep hole be the cause of the testers can be on... Engine can cause injury from rotating parts bubbles or combustion gas in the of. Me to Bismarck to have it checked system is present an engine that is similar to the test thermometer the... Call the following number for the cooling system can be used to test filler! And forth, noting if it has excessive play be something else like water pump a. ( 0.41 inch ) from the cooling system tends to inhibit the formation of air in! Later, Cat says engine is stopped and radiator field a stop again repeat. Minimum distance for openings on the boiling point ( steam ) of water pump 's weep hole or the! I notice a small amount of coolant from this hole is not determined, repairing the leak is determined. Leaks either cause of increased engine temperatures the seals and damage to the testing procedure in operating Manual ``! Concentration increases, the water pump, comes assembled with the specification of the water pump cheapest! Think there is a leak, inspect the fan drive belts for cracking or.. To match stringent performance and endurance requirements ) from water manifold assembly ( 3 ) level must be.! It has excessive play a REMAN water pump are considered to be a common cause of the pan hot!
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