My wife just bought a used 2006 Honda Accord EX-LV6 and it seems like it's in great shape. I've couple things about the engine I had questions on and I'm hoping someone here can help answer these.

1. When I look at the top of the engine I noticed there is piece that has the word "HONDA" on it which is machined smoothly but then around it engine surface is not machined smoothly. It's actually rough and unfinished looking. Is that normal?

2. Engine runs great and even when ideling in drive it runs very smooth but when idleling while in park I feel slight vibration (repeating two thumping then pause)coming from the engine. Does this engine need tuning? It only has 27k on it and engine runs great otherwise.

Thanks.

 

I appreciate your enthusiasm with posting but I assure you that you only need to post it once to get a response. Go look at your other identical thread.