What the hell is this knocking?
Thread Starter
Honda-Tech Member
Joined: Aug 2004
Posts: 2,006
Likes: 4
From: Sterling Heights, MI, USA
Before valve lash adjustment:
http://webpages.eng.wayne.edu/~aw1944/100_2475.MOV
After valve lash adjustment:
http://webpages.eng.wayne.edu/~aw1944/100_2487.MOV
Engine idles smooth after the adjustment, but the knocking is still there. The first vid was taken when the engine was still somewhat cold, but it made that noise when cold and warm. The second vid was taken with the engine warmed up.
It should be obvious that the car is an 02 accord. The engine is an f23a1.
http://webpages.eng.wayne.edu/~aw1944/100_2475.MOV
After valve lash adjustment:
http://webpages.eng.wayne.edu/~aw1944/100_2487.MOV
Engine idles smooth after the adjustment, but the knocking is still there. The first vid was taken when the engine was still somewhat cold, but it made that noise when cold and warm. The second vid was taken with the engine warmed up.
It should be obvious that the car is an 02 accord. The engine is an f23a1.
Thread Starter
Honda-Tech Member
Joined: Aug 2004
Posts: 2,006
Likes: 4
From: Sterling Heights, MI, USA
It's not a valve knock that I'm talking about. I know that the valves make some noise, but this sounds like a diesel engine running. Right after the adjustment, I noticed that the engine runs much smoother (less knocking/ticking from the valves). Now, at idle, the original knocking is almost silent, but as the engine speed increases a little bit, the knocking becomes audiable. It sounds like it's coming from the lower-inside of the engine.
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