John Deere X540 Lost Oil Pressure? FD731V Test, Tear Down, Oil Pump Fix - Full Diagnostics & Repair

Thank you for watching!! If we helped you out and you want to show your support - LIKE, SUBSCRIBE or give us a shout out below. If you saw something you didn't like leave your comment below as well, these things help us get better! The links contained here are affiliate links for which we may be compensated if you make a purchase To see our recommended tools and products visit our Amazon shop at https://www.amazon.com/shop/individua... Interested in starting your own small engine repair business? Check out my other channel, where I share tips on building a repair company from scratch with minimal investment ‪@SmallEngineEdge1‬ Picked up a John Deere X540 off Facebook with a serious complaint: it lost oil pressure while mowing. This tractor runs a Kawasaki FD731V-HS02 and when oil pressure disappears, you have to prove whether the engine is still worth saving before you throw parts at it In this video we confirm the no oil pressure condition, then walk through the exact checks I use to determine whether the engine has internal damage We perform a leak down test on both cylinders and verify they hold pressure (about 98%), then use a borescope to inspect cylinder walls for scoring, We also drain the oil to see what it looks like With the basics looking good, we pull the engine and go deeper We remove the FD731 Engine and access the crankcase sump cover and water pump Remove the water pump/impeller and inspect the sump area Inspect the oiling system and find the common failure point: a bad oil pump gear Check for metal/debris with a magnet and inspect oil for aluminum glitter. Aluminum glitter is obviously not magnetic but other metals that are ruined during engine failure are Replace the oil pump gear and reassemble correctly Seal the crankcase cover using Permatex Ultra Gray (no traditional gasket sold) Replace the water pump gasket and water pump o-ring Reseal the oil pump o-rings where the sump mates to the crankcase Inspect the oil pressure relief valve spring and ball Reinstall the engine and verify it’s back in service If you own a John Deere X540 (or anything running a Kawasaki FD series engine) and you want a real-world save-or-scrap oil pressure diagnosis, this is the full process from start to finish The links contained here are affiliate links for which we may be compensated if you make a purchase OTC Leakdown Tester https://amzn.to/47PSXjp Parts Used: M76098 Oil Pump Gear https://amzn.to/3YSSlYe MIU10868 Water Pump Gasket https://amzn.to/3Nw1G5R MIU10839 Water Pump O-Ring https://ebay.us/DolrL0 AM107423 Oil Filter https://ebay.us/fQug5R Engine Oil https://ebay.us/ELCCZd Permatex Ultra Grey https://amzn.to/4rd2zi6 If You Need Additional Parts: M138445 Oil Pressure Switch https://amzn.to/4pUB2kB MIU11329 Oil Seal Between Water Pump & Crankcase https://ebay.us/DolrL0 MIU11328 Mechanical Seal (Behind Impeller) https://ebay.us/6XWPsZ MIU10830 Water Pump Impeller https://ebay.us/dmdjd8 MIU10832 PTO Oil Seal https://ebay.us/koE9Tb Video equipment: GoPro Hero 13 https://amzn.to/4m3kZQE GoPro Media Mod https://amzn.to/46R95UK GoPro Light Mod https://amzn.to/44wIGdA GoPro Macro Lens Mod https://amzn.to/4d99lQi Microphone: DJI Mini Mic 3 https://amzn.to/4bmNROT Don’t forget to like, comment, and subscribe for more lawn mower repair tips, troubleshooting guides, and DIY small engine fixes to keep your equipment working smoothly! Save some money by doing it yourself! About Us: My name is Martin. I have been repairing tools and small engines for almost 20 years. We operate a small engine repair shop in Illinois. We service / repair Briggs & Stratton, Kohler, Kawasaki, John Deere, Cub Cadet, Toro Tecumseh, Loncin, Honda, Craftsman, Husqvarna, MTD, Troy Bilt, Simplicity, John Deere, Exmark, LCT, Generac and many more brands. We work on riding mowers, walk behind mowers, snow blowers, zero turns, generators, pressure washers and much more. We normally repair about 3,000 pieces of equipment every year and look at many more that are beyond an affordable repair. Hopefully our videos will save you some money and give you the information you need to work on your own equipment or figure out the issue at hand. Disclaimer: Links included in the description are affiliate links. As an Ebay & Amazon associate we earn from qualifying purchases. There will be no additional charge to you for purchasing here. We appreciate your support, which allows us to continue to provide original content! Please be careful when repairing any piece of equipment and follow all possible safety measures. This video is for entertainment purposes only. #johndeere #johndeerex540 #kawasaki #fd731 #kawasakifd731 #oilloss #oilpressure #nooilpressure #oilpump #oilpumpgear #enginerepair #smallenginerepair #gardentractor #ridingmowerrepair #mowerrepair #diagnostics #leakdowntest #borescope #enginebuild #waterpump #crankcase #permatex #ultragray #diyrepair #mechaniclife #facebookmarketplace #lawnmowermaintenance