cat c12 water pump weep hole

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

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