Trying to build a proper toolkit for my boat's engine maintenance. What marine engine maintenance tools do you consider absolutely essential? I want to be able to handle basic repairs and routine maintenance myself. Looking for specific tool recommendations and maybe some advice on what marine engine maintenance tools are worth investing in versus what I can get by without.
As a marine mechanic, here are the marine engine maintenance tools I consider essential: quality socket set (metric and SAE), torque wrench, multimeter, impeller puller, fuel line disconnect tools, oil extractor pump, and a good set of screwdrivers. For marine engine maintenance tools, buy once cry once - cheap tools break and can damage your engine. Also, keep spare impellers, belts, and filters on board.
Adding to the marine engine maintenance tools list: zinc wrench for changing sacrificial anodes, mirror on extendable handle for seeing hard-to-reach areas, flexible grabber tool for dropping things in the bilge. Also, a notebook to log maintenance - critical marine engine maintenance tools include record keeping. And don't forget corrosion protection for your marine engine maintenance tools themselves!
Great suggestions on marine engine maintenance tools! What about diagnostic tools? Are there any specific marine engine maintenance tools for troubleshooting that are worth having?