Troubleshooting Engine Loses Power Ɣ'LUW\DLUFOHDQHUHOHPHQW Ɣ(QJLQHRYHUKHDWHG Ɣ([FHVVLYHHQJLQHORDG Ɣ5HVWULFWHGH[KDXVW Ɣ)DXOW\VSDUNSOXJV Ɣ+LJKFUDQNFDVHRLOOHYHO Ɣ,QFRUUHFWJRYHUQRUVHWWLQJ Ɣ/RZEDWWHU\ Ɣ/RZFRPSUHVVLRQ Ɣ/RZFUDQNFDVHRLOOHYHO Ɣ4XDOLW\RIIXHOGLUWZDWHUVWDOHPL[WXUH EXTERNAL ENGINE INSPECTION NOTE: It is good practice to drain oil at a location away from workbench. Be sure to allow ample time for complete drainage. Before cleaning or disassembling engine, make a thorough inspection of its external appearance and condition. This inspection can give clues to what might be found inside engines (and cause) when it is disassembled.
Ɣ&KHFNIRUEXLOGXSRIGLUWDQGGHEULVRQFUDQNFDVH FRROLQJїQVJUDVVVFUHHQDQGRWKHUH[WHUQDOVXUIDFHV Dirt or debris on these areas can cause overheating. Ɣ&KHFNIRUREYLRXVIXHODQGRLOOHDNVDQGGDPDJHG components. Excessive oil leakage can indicate a clogged or inoperative breather, worn or damaged seals or gaskets, or loose fasteners. Ɣ&KHFNDLUFOHDQHUFRYHUDQGEDVHIRUGDPDJHRU LQGLFDWLRQVRILPSURSHUїWDQGVHDO Ɣ&KHFNDLUFOHDQHUHOHPHQW/RRNIRUKROHVWHDUV cracked or damaged sealing surfaces, or other GDPDJHWKDWFRXOGDOORZXQїOWHUHGDLULQWRHQJLQH$ GLUW\RUFORJJHGHOHPHQWFRXOGLQGLFDWHLQVXIїFLHQWRU improper maintenance. Ɣ&KHFNFDUEXUHWRUWKURDWIRUGLUW'LUWLQWKURDWLVIXUWKHU indication that air cleaner was not functioning properly.
Ɣ&KHFNLIRLOOHYHOLVZLWKLQRSHUDWLQJUDQJHRQGLSVWLFN If it is above, sniff for gasoline odor. Ɣ&KHFNFRQGLWLRQRIRLO'UDLQRLOLQWRDFRQWDLQHULW VKRXOGARZIUHHO\&KHFNIRUPHWDOFKLSVDQGRWKHU foreign particles.
Engine Uses Excessive Amount of Oil Ɣ/RRVHRULPSURSHUO\WRUTXHGIDVWHQHUV Ɣ%ORZQKHDGJDVNHWRYHUKHDWHG Ɣ%UHDWKHUUHHGEURNHQ Ɣ&ORJJHGEURNHQRULQRSHUDWLYHFUDQNFDVHEUHDWKHU Ɣ&UDQNFDVHRYHUїOOHG Ɣ,QFRUUHFWRLOYLVFRVLW\W\SH Ɣ:RUQF\OLQGHUERUH Ɣ:RUQRUEURNHQSLVWRQULQJV Ɣ:RUQYDOYHVWHPVYDOYHJXLGHV Oil Leaks from Oil Seals, Gaskets Ɣ%UHDWKHUUHHGEURNHQ Ɣ&ORJJHGEURNHQRULQRSHUDWLYHFUDQNFDVHEUHDWKHU Ɣ/RRVHRULPSURSHUO\WRUTXHGIDVWHQHUV Ɣ3LVWRQEORZE\RUOHDN\YDOYHV Ɣ5HVWULFWHGH[KDXVW 6OXGJHLVDQDWXUDOE\SURGXFWRIFRPEXVWLRQDVPDOO accumulation is normal. Excessive sludge formation could indicate over rich fuel settings, weak ignition, overextended oil change interval or wrong weight or type of oil was used.
CLEANING ENGINE After inspecting external condition of engine, clean engine thoroughly before disassembly. Clean individual components as engine is disassembled. Only clean parts can be accurately inspected and gauged for wear or damage. There are many commercially available cleaners that will quickly remove grease, oil, and grime from engine parts. When such a cleaner is used, follow manufacturer’s instructions and safety precautions carefully. Make sure all traces of cleaner are removed before engine is reassembled and placed into operation. Even small amounts of these cleaners can quickly break down lubricating properties of engine oil. 19 24 690 01 Rev.
D KohlerEngines.com WARNING Cleaning Solvents can cause severe injury or death. Use only in well ventilated areas away from ignition sources. Carburetor cleaners and solvents are extremely ÀDPPDEOH)ROORZFOHDQHUPDQXIDFWXUHU¶VZDUQLQJV and instructions on its proper and safe use. Never use gasoline as a cleaning agent.