Head valve cover nut oily/greasy

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ddv_nk12

1,000 RPM
May 18, 2011
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PD
As mentioned in the title, what is the cause and what am I looking at to replace/repair?

Please check out the attachment for reference. The nut which is circled in white is the problem.
 

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g4i8y0t

1,000 RPM
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Aug 5, 2010
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Kedah
I faced this problem a few months ago. Now solved already. I think mine was more severe, all 5 head cover nuts were covered in oil (my engine is a weak D16Y7 non-vtec :biggrin: ). The problem with most honda head cover is that the thread in the head itself is not through-hole type. Meaning that, if the seal under the nut is weak already, no matter how tight you torque the nut it will still be covered in oil. The solution: replace all the seal and put some new head cover gasket for good measure.
 

ddv_nk12

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May 18, 2011
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Got it. Thanks mate. I noticed that this particular nut, can't be tightened. It turns and turns but doesn't tighten. Why ah?
 

me2kimi

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Jun 25, 2007
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IMO it can be source easily at spare part shop.
 

ddv_nk12

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Do you mean the nut?
 

AD_EG

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either the nut needs to replaced or the thread worn out cause over tighten.
 

ddv_nk12

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If thread worn out, is there any solution?? I just tried using the other nuts for this corner but it's still the same.
 

g4i8y0t

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Aug 5, 2010
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Got it. Thanks mate. I noticed that this particular nut, can't be tightened. It turns and turns but doesn't tighten. Why ah?
Maybe the thread loose already? If it is, go find workshop that has tap & die set, the thread can be re-threaded. You'll have to use slightly larger nut after that.
 
Last edited:

ddv_nk12

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May 18, 2011
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Aih, if thread worn out, nothing can be done right?
 

AD_EG

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should be able to re-thread
 

ddv_nk12

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Bro, mind to tell where? Machine shop? Lol.. Me very :stupid:
 

l2s_turbo

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Where r u now bro? JB or KL?
 

ddv_nk12

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JB...........
 

l2s_turbo

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Pm me ur contact.. i tell you where to go to..
 

ddv_nk12

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PM'ed. Thanks bro.
 

l2s_turbo

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