Cracking sound from engine
Thread Starter
Joined: Mar 2004
Posts: 52
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From: Austin, Tx, USA
Cracking sound from engine
Hi,
When I rev my engine and listen closely to the engine, I can hear sharp cracking sounds from the valve compartment I guess. I just had a valve adjustment done. What could be the problem?
the car is a 99 Honda Accord EX 4 Cyl.
When I rev my engine and listen closely to the engine, I can hear sharp cracking sounds from the valve compartment I guess. I just had a valve adjustment done. What could be the problem?
the car is a 99 Honda Accord EX 4 Cyl.
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Joined: Mar 2003
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From: nyc, USA
Re: Cracking sound from engine (eswaroop)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eswaroop »</TD></TR><TR><TD CLASS="quote">Hi,
When I rev my engine and listen closely to the engine, I can hear sharp cracking sounds from the valve compartment I guess. I just had a valve adjustment done. What could be the problem?
the car is a 99 Honda Accord EX 4 Cyl.
</TD></TR></TABLE>
you sure its from the valve and not the header? usually cracking sounds are caused by cold metal getting warmed up... but if its from the valve area, have you noticed anything strange after the valve adjustment? loss of power? etc etc.. if so bring the sucker back to the mechanic... make sure he leaves it to cool off for like 3 hrs or over night before he does the adjustments.
When I rev my engine and listen closely to the engine, I can hear sharp cracking sounds from the valve compartment I guess. I just had a valve adjustment done. What could be the problem?
the car is a 99 Honda Accord EX 4 Cyl.
</TD></TR></TABLE>
you sure its from the valve and not the header? usually cracking sounds are caused by cold metal getting warmed up... but if its from the valve area, have you noticed anything strange after the valve adjustment? loss of power? etc etc.. if so bring the sucker back to the mechanic... make sure he leaves it to cool off for like 3 hrs or over night before he does the adjustments.
Joined: Feb 2004
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From: Gatineau, Quebec
Re: Cracking sound from engine (eswaroop)
Describe the problem a bit more..
Is a cracking noise when the engine is reved or after it is reved?
Is it a bunch of cracking like rice crispies, or just one crack?
Is it when it is hot, cold, or all the time?
fs
Is a cracking noise when the engine is reved or after it is reved?
Is it a bunch of cracking like rice crispies, or just one crack?
Is it when it is hot, cold, or all the time?
fs
Thread Starter
Joined: Mar 2004
Posts: 52
Likes: 0
From: Austin, Tx, USA
Re: Cracking sound from engine (filthy_shovel)
Well the problem is part of a bigger story, check this post of mine
https://honda-tech.com/zero...11835
Let me describe the problem a little better. Yes there is a drastic power loss. But right now, the valves are adjusted to the exact specs (by me) and all nuts torqued correctly (the lock nuts are torqued it to correct specs first and then 2 ft-lbs tighter than specs... but would that matter, I really did not notice them turning at all)
What do you mean by the header?
There does not seem to be a particular pattern, but it does happen once in a while when it is being revved high, also when there is a drastic change in the revving.
It is a single sharp crack something that would sound when metal hits metal and it is really painful to hear!!
I noticed it when the engine was warming up, tried repeating it today when it was really hot but did not succeed. What about misfiring?
I seem to be bogged by problems..
Please help.
https://honda-tech.com/zero...11835
Let me describe the problem a little better. Yes there is a drastic power loss. But right now, the valves are adjusted to the exact specs (by me) and all nuts torqued correctly (the lock nuts are torqued it to correct specs first and then 2 ft-lbs tighter than specs... but would that matter, I really did not notice them turning at all)
What do you mean by the header?
There does not seem to be a particular pattern, but it does happen once in a while when it is being revved high, also when there is a drastic change in the revving.
It is a single sharp crack something that would sound when metal hits metal and it is really painful to hear!!
I noticed it when the engine was warming up, tried repeating it today when it was really hot but did not succeed. What about misfiring?
I seem to be bogged by problems..
Please help.
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eswaroop
Honda Accord (1990 - 2002)
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Mar 26, 2004 03:44 PM
