As the mornings are getting colder I'm starting to notice what sounds like a bottom end knock in my engine.
It only happens some cool mornings, not all, but when I first start the engine I start to hear a knocking sound as the revs settle out below 1000.
Its more of a deeper noise than the lifter tick I sometimes get and sounds like its coming from the bottom end and can be heard in the cab with the windows up. It is effected by the revs.
It stops after 45 secs to a minute and once the engine is warm everything runs fine and quietly, no knocking or any ill effects, and no further knocking will be heard on starts later that day.
I'm running recommended 10w30 and the engine only has 210,000 KM on it and hundreds of these engines have gone well past 1 million KM with no internal work at all just oil/filter changes. It seems very early to be having what sounds like bottom end bearing wear, that somehow goes away when warm...
Any ideas or experience?
I have a video of the noise taken at around freezing point cause we are having an early cold snap around here at the moment. I am currently uploading and I will post the link when it finalizes
It only happens some cool mornings, not all, but when I first start the engine I start to hear a knocking sound as the revs settle out below 1000.
Its more of a deeper noise than the lifter tick I sometimes get and sounds like its coming from the bottom end and can be heard in the cab with the windows up. It is effected by the revs.
It stops after 45 secs to a minute and once the engine is warm everything runs fine and quietly, no knocking or any ill effects, and no further knocking will be heard on starts later that day.
I'm running recommended 10w30 and the engine only has 210,000 KM on it and hundreds of these engines have gone well past 1 million KM with no internal work at all just oil/filter changes. It seems very early to be having what sounds like bottom end bearing wear, that somehow goes away when warm...
Any ideas or experience?
I have a video of the noise taken at around freezing point cause we are having an early cold snap around here at the moment. I am currently uploading and I will post the link when it finalizes