Hello, I have a problem

Namely, on a cold engine sound of the engine terribly shoot me , it is such as to knock the valve ... If the engine is already warm then it nicely . I have a V6 and today I decided to check with the cylinder comes the sound . I undid the turn of the coil , and when I unhooked 2 cylinder engine began to walk softly . So there is a problem , and now my question is what could be the reason? Is it really can be a valve ? What you had to mention that there was this annoying sound . I would add that the clearances were set and it did not help . Please help greet

 

I'd want to do a compression check of the engine, compare the numbers.

 

It sounds valvetrain related, that sounds almost normal believe it or not but I would say its a bit loud. Honda motors are known to have noisy valvetrains. Do you have any DTC's? It might be pre-detonation from improper fuel delivery or improper ignition timing. Bad gas can cause that too but I'm betting you have a slightly excessive version of the typical valvetrain noise.

 

ive seen worn or pitted cam lobes cause that knock as well. Pull the v.c. and inspect the high point of each lobe. Never hurts to be thorough in isolating that knock.

 

definitely a weird noise. the noise im describing occurs with or without the coil plugged. hmmmmmm got a good one there.

 

Errors engine is 420 and 430 , in addition to now jumps mistake P0172 but before that it was the same knocking it . As the engine is hot then it quietly. I have no idea what it is due . Surely it is associated with a cylinder 5. It may connecting rod , piston , bearings, bolt ?

 

knocks then it goes away after it warms up correct? I'd pull the front valve cover and check the high point of the cam lobe on num 5. Doesn't hurt anything to check. Then if all is good there then it would be time to drop the oil pan and check that rod.