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Bob4
Account deleted

join:2012-07-22
New Jersey
reply to guhuna

Re: Ticking noise from engine

Yeah, but there's a louder tick once every other engine revolution. I'll see if I can get a better recording.


alkizmo

join:2007-06-25
Pierrefonds, QC
kudos:1
You can hear 500 ticks a second? Woah

Bob4
Account deleted

join:2012-07-22
New Jersey
Reviews:
·Optimum Online
said by alkizmo:

You can hear 500 ticks a second? Woah

No, but 500 ticks per minute is pretty easy.

I actually counted 30 ticks and timed it at 4.12 seconds. That's 7.28 ticks per second.

The engine was going 1000 RPM, which is 16.7 revolutions per second.


alkizmo

join:2007-06-25
Pierrefonds, QC
kudos:1
said by Bob4:

The engine was going 1000 RPM, which is 16.7 revolutions per second.

Damnit I'm really not all there in the head today. (Well I'm at work, Im sure the boss will appreciate). I had RPMs as if it was RPS while making my stupid reply.

Still though, ya I guess with the audio file you can tell by putting it on an audio file editor with that graph thing. I didnt think of that since I never listened (No speakers on my PC at work).

Bob4
Account deleted

join:2012-07-22
New Jersey
Reviews:
·Optimum Online
reply to Bob4
downloadengine2.wav 1,264,456 bytes
I think this recording is better. You can really hear it at around 0:32.

Bob4
Account deleted

join:2012-07-22
New Jersey
Made an unplanned trip to the Honda dealer today. Check engine light on / car bucking / no power. Turned out to be a bad #2 spark plug.

I asked them to listen to the engine and they said they didn't hear anything unusual.

Bob4
Account deleted

join:2012-07-22
New Jersey
Reviews:
·Optimum Online
I listened again, and the ticking noise is definitely gone. Changing the spark plug got rid of the ticking noise! I thought that was bizarre, but a Google search returned many instances of loose spark plugs causing ticking noises. Here's an example of one from a BMW forum:
said by some guy :
My wife's 97 540i recently started producing a loud ticking sound that appeared to come from the left side of the motor. I did several searches on this forum to find that the ticking sound is very common with these cars and aparently normal as well, so i didn't worry too much about it. But the car was also sputtering when taking off from a stop in first gear, and recently started throwing a CE light as well. The code ended up being random cylinder misfires, so after searching this forum for that as well (possible causes could be spark plugs fouled out by leaking valve cover gasket, bad coils, and even bad catalytic converters), so i decided to just check all the spark plugs first since that wouldn't cost me any money.

During the spark plug inspection, i found that two of them were REALLY loose (i could turn them 2 or 3 times with my finger tips before they seated into the head) and a few others could be broken loose really easily. I inspected and cleaned each plug, and made sure they were seated properly, and the car runs like a friggin hot rod now, and there is ABSOLUTELY no ticking sound coming from the motor anymore at all.

Check your plugs! Just thought i'd share.
I was also having some strange engine behavior. Most notable was rapid engine RPM changes at high RPMs. (And this iVTEC engine is built to run at high RPM.) I bet the spark was cutting out and the RPMs would drop, then the spark would come back and the RPMs would go back up, then the spark would cut out again, etc, etc. All because of the spark plug! I bet it's been that way all along, or at least for the past 6+ weeks.

dragonfly5

join:2012-09-04
Yep I had this happen before too.