He emailed me the video.. The rhythm and depth of the sound suggest a lost rod bearing or a cylinder that's worn away creating severe piston slap. I have heard this one before and it's always been a worst case scenario.
Perfect candidate to GO BIG!
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Jake Raby/www.flat6innovations.com
IMS Solution/ Faultless Tool Inventor
US Patent 8,992,089 &
US Patent 9,416,697
Developer of The IMS Retrofit Procedure- M96/ M97 Specialist
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