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What would cause a new motorcycle engine with only 1900 miles knock as it’s warming up, and stop knocking when it’s warmed up? What if this engine has a little too much motor oil ?

@MechanicalBoost

19 күн бұрын

It may cause because of different causes such as: 1) Piston Slap: This is a common cause of knocking noises in cold engines. When the engine is cold, the pistons may be slightly loose in the cylinder bores. As the engine warms up, the pistons expand and fit more snugly, reducing or eliminating the knocking noise. 2) Oil Viscosity: If the engine oil is too thick (high viscosity) when cold, it may not flow as easily, leading to less effective lubrication of engine components and resulting in knocking sounds. As the oil warms up, it thins out and flows more freely, providing better lubrication and reducing noise. 3) Valve Clearance: Cold engines may have larger valve clearances due to metal contraction. This can cause the valves to make a knocking or tapping sound. As the engine warms up, the metal expands, and the valve clearances become tighter, reducing the noise. 4) Cam Chain Tensioner: Some motorcycles have automatic cam chain tensioners that adjust the tension as the engine warms up. If the tensioner is not working correctly when cold, it can cause a knocking noise that goes away once the engine is warm and the tensioner has adjusted. 5) Cold Engine Combustion: When an engine is cold, the combustion process is not as efficient, which can sometimes cause knocking or pinging sounds. This typically resolves as the engine reaches operating temperature and combustion becomes more efficient. 6) Fuel Quality: Poor quality or incorrect octane fuel can cause pre-ignition or knocking, particularly when the engine is cold. Once the engine is warm, it may run more smoothly and the knocking may diminish. 7) Break-in Period: Even though 1900 miles is a significant amount for a break-in period, some engines might still be settling. Slight variations in engine component fit and wear-in can cause temporary noises that disappear as the engine parts finish settling into their final operating conditions.

@ginoasci2876

19 күн бұрын

@@MechanicalBoost : : you’re good ! I can’t thank you enough for taking the time to put all that down and sending it. Thank you. Out of those seven, at this point and given that the engine is so new, I’d suspect oil quality and fuel quality. I could be they the fuel is not of good quality. I did notice that the gas was really white or clear. This could be it. I’m going to suck it all out and replace it tomorrow. For the oil, Triumph recommends Castrol. So I’ll Che l with the dealer that did the oil change. I’m really hoping it’s the gas. The cold engine, valve clearances, piston slap, and cam tensioner definitely sound like possible causes, but I’m going with the simple possibilities first. Gas and oil. I will say this……there was about two gallons of fuel in the tank, and I added one gallon of 93 octane to see if it made a difference. Not noticeable. I’d go pump it out right now, but it’s 10pm. Thanks again.

@ginoasci2876

15 күн бұрын

@@MechanicalBoost: was not the fuel. The engine is mapped at the factory. Is it possible for that mapping to become corrupt? or partially corrupt? or just enough to cause knocking? or knocking during warm up? or knocking during warm up and then continue but not as bad?

My engine only knocks when driving but then goes away, what could that mean?

@MechanicalBoost

10 күн бұрын

If the knocking occurs only during driving and then goes away, it could be related to specific conditions such as load, engine speed, or temperature. Here are some potential causes 1) Low-Quality Fuel 2) Carbon deposits on the combustion chamber walls or piston tops 3) Incorrect Ignition Timing 4) Lean Air-Fuel Mixture 5) Faulty Knock Sensor 6) EGR System Issues 7) Old or Worn Spark Plugs

100% sure? List a video of the knocking sound

@MechanicalBoost

9 ай бұрын

Yes. This video has the main reasons of knocking sound

@muhammadkhalid-uv9wo

9 ай бұрын

@@MechanicalBoost kindly upload more videos .. waiting

@sens_g35

7 ай бұрын

an audio clip of the knocking sound would be great.

Or your probably low on oil

@nakishawallace3649

29 күн бұрын

That's true I think that's what's wrong with my sons engine the oil light keeps coming on

❤John 3,16 ❤