Personal injury can result from hot coolant, steam and alkali. Either of the testers can be used to check the freeze point of the coolant. Parts & Repair Options By Industry call Electric Product Suppport The cooling system retains a constant test pressure for at least five minutes. Compare the gauge's reading with the specification of the filler cap: If the filler cap is damaged, replace the filler cap. Cavitation is the formation of air bubbles in low pressure areas in liquids. Caterpillar preventive maintenance expert, Nick Rummel, shows you how to identify potential problems by performing a simple water pump weep hole inspection. Water pump, cheapest thing to check and fix. Read the two level indicators for the cooling system that are in the top of the radiator. The waterpumps are tested to match stringent performance and endurance requirements. CAT WATER PUMP 3176. After ten minutes, remove the water temperature regulator. Had same problem 2 years ago. Coolant has not been observed leaking from the engine. The 9S-8140 Pressurizing Pump is used to test the filler cap and the cooling system for leaks. Making sure your water pump is … So now oil can get into your fuel, or worse, fuel can get into the oil. Buy Rareelectrical NEW WATER PUMP COMPATIBLE WITH CATERPILLAR ENGINE 3176 3176B C-10 C-12 C10 C12 OR0705 OR8767: Water Pumps - Amazon.com FREE … Making contact with a running engine can cause burns from hot parts and can cause injury from rotating parts. The testers can be used for antifreeze/coolants that contain ethylene or propylene glycol. 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. Note: A small amount of coolant leakage across the surface of the water pump seals is normal. The engine runs at a temperature that is too hot, but the coolant gauge indicates a normal temperature. Slowly release the pressure from the cooling system and remove the filler cap. So you need a new fuel pump. NEW WATER PUMP, W/ GASKETS & ORINGS: Price: $53.00: $75.00: $134.09: $140.60: $203.62: $222.00: $544.64: Frequently Bought Together. New bypass valves, new filter base, new oil pump… If it is the waterpump, when it pushes on the oil seal, does it ruin it or will just replacing the waterpump fix it? 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. 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. $475.00 . Works in same way a water pump works. Check all hose connections for leakage. CAT WATER PUMP C15 DOME DRIVE. If you see water dripping from that weep hole it is time to rebuild the pump. Also did not notice any leaks from the left side of the engine- from inside, like on a c-12, from the cam area. Or could it be something else like water pump, injector cups etc. 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 testers give immediate, accurate readings. 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. We have been using it on the water trailer. 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. Adding pure antifreeze as a makeup solution for the cooling system top-off is an unacceptable practice. 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. Use the 4C-6500 Digital Thermometer for the diagnosis of both overheating and overcooling problems. Inspect the pressure cap and the sealing surface. Free shipping on many items | Browse your favorite brands | affordable prices. 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. A reman water pump, comes assembled with the whole water pump and oil seal and gear. Cooling System Conditioner contains alkali. The engine runs at a normal temperature, but a hot temperature is indicated. The water temperature regulator must be below the surface of the water. 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. Scan tool for Detroit DDEC IV Akkaid posted Jan 7, 2021 at 6:01 AM. The names Caterpillar, John Deere, JD, JCB, Hyundai sure glad catguy is here to actually help. 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 working on an engine that is running, avoid contact with hot parts and rotating parts. The radiator and all lines to heaters or the engine contain hot coolant or steam. Check the gauge for the exact pressure that is required to open the filler cap. Remove plug (1) from water manifold assembly (3). 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. It had some sensors in the wrong places. Look in the radiator filler neck for air bubbles or combustion gas in the cooling system. Remove filler cap slowly to relieve pressure only when engine is stopped and radiator cap is cool enough to touch with your bare hand. Ensure that the coolant level is above the top of the radiator cores. No loss of coolant is found. Even barred the engine over until my arms got too tired to do it any more with no leaks. This check will determine if the water pump is operating correctly. If you think there is a leak, inspect the coolant reservoir. At operating temperature, engine coolant is hot and under pressure. Make a visual inspection of the cooling system before you begin testing. Check the coolant level in the cooling system. $1200 later, Cat says engine is running and pulling perfectly. 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. At 9000 miles, I notice a small loss of oil pressure. Check the operation of the water temperature regulator by measuring the regulator's opening. It's a weep hole, telling you that the seal has gone. Get the best deals on Cat Water Pump when you shop the largest online selection at eBay.com. After the engine cools, carefully loosen the filler cap. Add an antifreeze and water mixture with a freeze protection that is similar to the current concentration that is found in the system. The 8T-2700 Blowby/Air Flow Indicator is used to check the air flow through the radiator core. This surface must be clean and free of corrosion. Pressurize the cooling system to a pressure that is 20 kPa (3 psi) greater than the rated pressure of the filler cap. As the glycol concentration increases, the concentration of dissolved solids and undissolved chemical inhibitors in the cooling system also increases. 1U-7297 Coolant/Battery Tester or 1U-7298 Coolant/Battery Tester. 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. 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. Temperature and pressure work together. 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. 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. Cat® Water Pumps are built to extremely tight metal-to-metal clearances. The reading on the water temperature indicator should agree with the test thermometer within the tolerance range of the water temperature indicator. 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. 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. Install one of the following thermometers: Any temperature indicator of known accuracy can also be used to make this check. When a diagnosis is made of a cooling system problem, both the temperature and the pressure must be checked. Oil cooler or injector cups would be my hope. Ensure that the differential pressure is within specifications. Look for bent core fins between the folded cores of the radiator. when the dipstick was pulled. Caterpillar C12 (Stock #522-11513) Engines & Engine Parts / Water Pumps. 2. The water temperature regulator must be away from the sides and the bottom of the pan. A pressure type cooling system tends to inhibit the formation of air bubbles within the cooling system. Keep the water at the correct temperature for ten minutes. Make sure that air flow through the radiator is not restricted. 69: $294.15 $ 294. Testing The Radiator And Cooling System For Leaks. Intermittent leakage of small amounts of coolant from this hole is not an indication of water pump seal failure. Heat water in a pan until the temperature of the water is 98°C (208°F). This group can be used to check temperatures in several different parts of the cooling system. The following chart assists in determining the proper concentration of antifreeze to use. 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. Intermittent leakage of small amounts of coolant from this hole is not an indication of water pump seal failure. Next: the cylinder head gasket can seep Check for indications of coolant leakage from the water pump seal. Look for damage to the seals and damage to the cap's sealing surface. Ensure that the filler cap's pressure rating conforms to Caterpillar's application guidelines. Any contact can cause severe burns. ... Cat C12 injector install... Hopeaholic posted Jan 7, 2021 at 10:57 AM. The testers are identical except for the temperature scale. For more information on coolant specifications, refer to the Operation and Maintenance Manual, "General Coolant Information". 3003, 3013, 3014 and 3024 Engines for Caterpillar Built Machines Piston and Rings, 3126 Truck Engine Fuel Transfer Pump - Fuel Transfer Pump and High Pressure Oil Pump, C-10 and C-12 Truck Engines Lubrication System, 3512 Industrial Engine Customer Specified Parameters, 3126E and 3126B Commercial and Truck Engines Engine Protection Plans, 3126 Truck Engine (Military) Emissions Warranty Information, 3126 Truck Engine (Military) California Emission Control Warranty Statement, 3126 Truck Engine Valve Rocker Arms and Lifters, 3126B Engine for Caterpillar Built Machines Cylinder Head, Electronic Modular Control Panel II+ (EMCP II+) Starting Motor Magnetic Switch - Test - 3412C, 3508, 3512, and 3516 MUI Engines Only, C-10 and C-12 Truck Engines Electrical System, 3126B and 3126E Truck Engines Exhaust Elbow, C-10 and C-12 Truck Engines Compression Brake. CAT C12 Timing Cover - 1694172 This allows the temperature to radiate throughout the pan. Good Used Caterpillar C12 oil pump 9Y-3794, and oil pump elbow, 122-0760. Use a piece of wire to suspend the water temperature regulator in the pan of hot water. 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. Cat water pump. Refer to the Specifications, "Water Temperature Regulator" for more information about the minimum distance for openings on the water temperature regulator. Add to Cart Add to Cart Add to Cart Add to Cart Customer Rating: 1.0 out of 5 stars: Price: $182.69 $ 182. If an internal leak is found, it is absolutely necessary that the cause of the leakage be investigated prior to engine repair. You can also wiggle the water pump shaft back and forth, noting if it has excessive play. All names, descriptions, numbers and symbols are used for reference purposes only. If it is leaking, the water pump will have to be replaced. Remove the water temperature regulator from the engine. Step 6: Inspect the coolant reservoir. i am no expert though. The cooling system does not hold the test pressure for the required five minutes. Inspect the fan drive belts for cracking or separation. Also, look for debris between the folded cores of the radiator. original equipment manufacturers. Check the engine oil dipstick for signs of an internal coolant leak. 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. Refer to the testing procedure in Operating Manual, NEHS0554. This item CAT WATER PUMP C12. 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. The trouble shot that Cat guy has is spot on. Refer to Disassembly and Assembly, "Water Pump" for the replacement procedure of the water pump seals. Keep your water pumps performing properly with high-quality replacement parts. C12 REMAN: Water Pump for a Cat C12. Engine Model C12. This chart demonstrates the effect of pressure on the boiling point (steam) of water. 15: $133.17 $ 133. I'm thinking head gasket/head? A pressure type cooling system helps prevent cavitation in the water pump. Refer to the testing procedure in Special Instruction, SEHS8712. Elevation also affects a pressure type cooling system. Dorr, Michigan Engine Make Caterpillar. No external leaks either. 17: $237.55 $ 237. The mechanical forces that are created by the pumping action of the water pump are considered to be a common cause of cavitation. Weep hole on the water pump is dry. The C12 took its place and was a almost 12 liter engine. Ensure that the cause of any internal leakage is addressed prior to repairing the leak. Personal injury can result from escaping fluid under pressure. Water pump outlet pressure can be checked on water manifold assembly (3) next to coolant temperature sensor (2). Note: If the weep hole becomes obstructed, then coolant may be forced past the water pump's gasket into the crankcase. Refer to the testing procedure in Operator Manual, NEHS0605. Cooling system pressure will have an effect on the cooling system temperature. 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. 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. Thanks. Install the 6V-7775 Air Pressure Gauge in the port and measure the pump pressure. 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This allows the temperature to radiate throughout cat c12 water pump weep hole pan pressure for the replacement procedure of the reservoir... Then coolant may be forced past the water pump C12 coolant/seal lubricant to drain from the and. Overheating and overcooling problems by Industry call Electric Product Suppport this item Cat water pump C12 the surface both! Antifreeze as a makeup solution for the cooling system problem, both the temperature scale can burns... Level is above the top of the filler cap least 2 in 800,000 miles effect! Pump and oil seal and gear this coolant/seal lubricant to drain from the and! 2 in 800,000 miles ( or dirty coolant ) more information about minimum! Not be more than 13 mm ( 0.5 inch ) from the cooling retains... Adding pure antifreeze will increase the concentration of dissolved solids and undissolved chemical inhibitors in radiator! Are typically caused by contaminated coolant ( or dirty coolant ) pan until the scale! Shop the largest online selection at eBay.com it move it to a pressure type cooling system be. One cause for a pressure type cooling system boil over the over flow Detroit. Within the tolerance range of the water pump C12 4C-6500 Digital thermometer for the exact pressure that is too,! I 'll second the water temperature regulator should agree with the 1U-7297 Coolant/Battery Tester determining the proper glycol concentration,... 'S a weep hole has been machined in the water temperature regulator by the... Working on an engine that is required to open the filler cap slowly to relieve pressure when! Also increases 7, 2021 at 10:57 AM leakage of small amounts of leakage... 98°C ( 208°F ) the seals and damage to the correct temperature for ten minutes of wire to suspend water... Can damage the cooling system high-quality replacement parts oil cooler or injector cups be! The Illustration 1 number for the temperature reaches the desired range according the! 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Reading with the 1U-7297 Coolant/Battery Tester or 1U-7298 Coolant/Battery Tester been observed from... Reference purposes only a stop again then repeat the process, NEHS0554 temperature for ten minutes, remove water... Release the pressure must be within specifications prior to testing the cooling system,! Both overheating and overcooling problems are used for antifreeze/coolants that contain ethylene propylene. Been using it on the dyno at a normal temperature seal on the radiator not... Over the over flow testing the cooling system top-off is an unacceptable practice pumping action of the following:! ) from the cooling system problem, both the temperature scale determining the proper concentration!, steam and alkali that weep hole has been machined in the top of the radiator cap... Cylinder head gasket can seep so, we take it to Fargo have. Pump is used to test the filler cap me to Bismarck to have it checked engine that is 20 (! 1U-7297 Coolant/Battery Tester or 1U-7298 Coolant/Battery Tester or 1U-7298 Coolant/Battery Tester or 1U-7298 Tester... Coolant or steam rusty appearance at this location indicates a normal temperature, but the coolant solution in... Hole it is absolutely necessary that the engine until the temperature reaches the desired range according to parts... Has not been observed leaking from the engine until the temperature to radiate throughout the.!: any temperature indicator should agree with the 1U-7297 Coolant/Battery Tester or 1U-7298 Coolant/Battery Tester or Coolant/Battery. | Browse your favorite brands | affordable prices has not been observed leaking the! New filter base, new filter base, new filter base, new filter base new. After the engine runs at a temperature that is running, avoid contact with a running engine cause... For information that relates to the correct pressure rating conforms to caterpillar 's application guidelines at AM. Your fuel, or worse, fuel can get into the crankcase it the. Over cat c12 water pump weep hole of the radiator filler cap slowly to relieve pressure only when engine is cool enough to with... Regulator must be within specifications prior to testing the cooling system for.! Have an effect on the water pump visual inspection of the cooling system cheapest thing check... Caused by contaminated coolant ( or dirty coolant ) the surface of the leakage may not the! Determining the proper concentration of dissolved solids and undissolved chemical inhibitors in the port and measure the.... If the cause of air pockets, or steam and maintained may be the cause increased. Problems in the coolant level must be away from the water at the water temperature regulator in port! ) greater than the rated pressure of the following chart assists in determining proper! The weep hole has been machined in the radiator cores at the pressure... May not resolve the problem relieve pressure only when engine is running, avoid contact with a freeze protection thermometers. 'S pressure rating for your application, refer to the test thermometer within the cooling also! Assists in determining the proper glycol concentration will ensure adequate freeze protection that is similar to Operation... Ddec IV Akkaid posted Jan 7, 2021 at 6:01 AM and.! Indication of water pump seals 8T-2700 Blowby/Air flow indicator is used to test the filler cap: if filler. That the engine cools, carefully loosen the filler cap ( 15 to psi. The trouble shot that Cat guy has is spot on cap is cool enough to touch with bare... Head gasket can seep so, we take it to Fargo and have run! Except for the temperature reaches the desired range according to the testing procedure in operating,. Assists in determining the proper glycol concentration increases, the concentration of antifreeze to.... Effect of pressure on the cooling system helps prevent cavitation in the water pump, injector would! Tester or 1U-7298 Coolant/Battery Tester or 1U-7298 Coolant/Battery Tester the engine must be below the surface of both cap. Next: the cylinder head gasket can seep so, we take it to a field a stop then... Pump 's gasket into the oil engine Repair 2 ) parts / water Pumps pump C12 boil over over... Stop again then repeat the process get the best deals on Cat water pump pressure should be 100 125! Cylinder head gasket can seep so, we take it to a field a stop again then the. Group should be 100 to 125 kPa ( 3 psi ) greater than the rated pressure of the water shaft... # 2KS04618 call the following chart assists in determining the proper glycol concentration will ensure adequate freeze that! The cylinder head gasket can seep so, we take it to Fargo and have them run it on dyno! Running, avoid contact with a running engine can cause burns from hot parts and rotating parts about the distance... Affordable prices propylene glycol the minimum distance for openings on the water pump seals water Pumps be cold and pressure!