10k valve adjustment?
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From: VA Beach via South Jersey
Originally Posted by ottokrat,Jun 26 2007, 08:19 AM
As one poster noted service interval is 105k miles, so it is not necessary according to honda.
I have an MY06. I did mine at around 4k miles. The valves were all within spec, but that is a range, and they did range wildly within that spec among the various valves. I had them all set to the tight end of spec. Noticeable improvement in smoothness at idle and at hwy/fwy speeds. Increase in power from 2.2k-redline. Loss of power below 2k. Defineately worth it to me!
I have an MY06. I did mine at around 4k miles. The valves were all within spec, but that is a range, and they did range wildly within that spec among the various valves. I had them all set to the tight end of spec. Noticeable improvement in smoothness at idle and at hwy/fwy speeds. Increase in power from 2.2k-redline. Loss of power below 2k. Defineately worth it to me!
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From: Covington WA, USA
Originally Posted by DeeDubya,Jun 26 2007, 07:38 AM
Actually, the service manual says "do not adjust them unless they are noisy".
Anyway, I personally think that it's just as likely that you (or your mechanic) will screw something up as it is you will improve anything. Maybe more likely.
If you have the valve cover off for some other reason, you might as well check the valve clearances while you are there. But otherwise, don't mess with them unless you have some reason to think there is a problem.
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From: atlanta
I've talk to the tech manager friend of mine who works at honda and he said they hardly ever do them and you don't need to do them unless it's causing problems.
so don't do it.
More you fix things, more things could go wrong. It's a simple lesson I've learned it the hard way.
so don't do it.
More you fix things, more things could go wrong. It's a simple lesson I've learned it the hard way.
Registered User
Joined: Mar 2004
Posts: 1,729
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From: atlanta
I've talk to the tech manager friend of mine who works at honda and he said they hardly ever do them and you don't need to do them unless it's causing problems.
so don't do it.
More you fix things, more things could go wrong. It's a simple lesson I've learned it the hard way.
so don't do it.
More you fix things, more things could go wrong. It's a simple lesson I've learned it the hard way.
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Posts: 22,888
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From: Covington WA, USA
Originally Posted by Silverstreak HX,Jun 26 2007, 04:16 PM
Speaking of which what about those valve retainers? Don't they need to be replaced before 105,000 miles????
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From: San Jose, CA
It is certainly not necessary to adjust the valves unless they are noisy or you hit the 105k service interval, just like honda and the manual say.
However, the factory settings are within an allowable range. If you are into the very noticable benefits to be had from fine tuning, you should consider doing a valve adjustment to get them all set the same instead having them be randomly all over the allowable range.
The same goes for alignment. The factory alignment most likely has each wheel somewhere in the allowable range, but each corner of the car is set differently. There is much improvment in handling to be had by setting the alignment to exacting specifications. Of course you have to know your driving style and situation to identify what those custom specifications would be; coming up with custom specs for the valves is a bit easier. This isn't for everyone.
These are low cost, low risk, highly noticable modifications. But if you are not into fine tuning then don't bother with these things. It's ok either way, and, everyone gets to decide for themselves.
However, the factory settings are within an allowable range. If you are into the very noticable benefits to be had from fine tuning, you should consider doing a valve adjustment to get them all set the same instead having them be randomly all over the allowable range.
The same goes for alignment. The factory alignment most likely has each wheel somewhere in the allowable range, but each corner of the car is set differently. There is much improvment in handling to be had by setting the alignment to exacting specifications. Of course you have to know your driving style and situation to identify what those custom specifications would be; coming up with custom specs for the valves is a bit easier. This isn't for everyone.
These are low cost, low risk, highly noticable modifications. But if you are not into fine tuning then don't bother with these things. It's ok either way, and, everyone gets to decide for themselves.