Knocking sound from Lenar engine: Chinese Tractors -- Other  -- Chinese Tractors Discussion Forum and Review Knocking sound from Lenar engine: Chinese Tractors -- Other -- Chinese Tractors Discussion Forum

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 07-05-2006, 11:45 Post: 131719
batman99



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 Knocking sound from Lenar engine

I've been noticing a knocking sound from my Lenar engine. I've had the tractor about 2 years and it has about 46 hours on it. I first noticed the knocking sound last year when I was going up a hill -- it seemed pretty bad. I slowed it down and dropped into another gear, put the tractor away and the next time I used it -- no problem. I haven't had a problem for awhile. But when I was using it the other day and sped up, I heard the sound again. I can hear it even when it idle's now. The best way I can describe it -- is that it sounds a little bit like a bad rod in a car.

Does anyone have ideas on what it may be and what I can do about it?






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 07-05-2006, 12:49 Post: 131722
Art White



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 Knocking sound from Lenar engine

Change the injectors from one cylinder to the other and see if it still knocks on the same one. Sometimes a bad injector will give the sound of a bad rod in some engines.






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 07-05-2006, 13:00 Post: 131723
greg_g



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 Knocking sound from Lenar engine

I've got one of those chattering injectors on my Mercedes, but it quiets down once the engine warms up - it's just a cold engine issue.

Not to say your problem isn't injector related, but what color exhaust do you get when it knocks pulling uphill?

//greg//






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 07-08-2006, 20:23 Post: 131889
earthwrks

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 Knocking sound from Lenar engine

Batman: When's the last time you checked the air filter? Could be starving for air and that's making combustion difficult esp. under a load.






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Discussion Boards > Active Subjects > Messages as Posted > Chinese Tractors -- Other Forum

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