Boxofbits Posted September 27, 2023 Share Posted September 27, 2023 Hi all I’ve posted this in another section, but posting in here as well. Today I decided to back flush the rad/engine and fill with fresh antifreeze, just to keep the temperature normal…hopefully. When warming the engine up afterwards, I noticed quite a loud ‘clattering’’ noise which comes in at about 3,000 RPM on a steady throttle up. This is with the car stationary so not under load. Oil pressure and temperature look normal and neither wildly fluctuate, so I’ve tentatively ruled out big ends or mains, for the moment, though still could be but I do hope not as I can’t see I can take the engine out and rebuild it before next week! I haven’t ruled out a load of other things like timing chain tensioner, cam followers etc. Does this engine have a ‘known’ weakness which might cause this? I have heard of crankshaft breakage 🤨. Your thoughts please! (If the crank is broke anyone got a spare 4a engine I could use for the event?). Just a thought…. Thanks Kevin Quote Link to comment Share on other sites More sharing options...
Boxofbits Posted September 28, 2023 Author Share Posted September 28, 2023 All now resolved as per my other post. Thanks everyone. Kevin 1 Quote Link to comment Share on other sites More sharing options...
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