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I replaced TDC sensor and now oil is sweating from between the seal.

What I did:
1.Remove the Three bolts holding the upper timing cover on. Trust me, theres three and youll want low profile wrenches and small hands to get to them, ( you cannot reach them from the bottom of the car so dont even bother. )
2. remove the plastic v-tec panel that covers the coil pack wiring.
3. disconnect the individual coils and remove them
4. tie the cruise control cables out of the way, beucase they are pesky
5. unbolt the valve cover, and the fuel injector hold down plate behind the valve cover.
6. clean the valve cover thuroughly so nothing falls into the head.
7. CAREFULLY wiggle then remove the valve cover and cover the valve train with something, i used a t shirt.
8.unplug the TDC sensor connector
9.remove the upper timing belt cover.
10. locate the TDC sensor just under the cam shaft towards the firewall. It is secured with one 10mm bolt. Stuff a rag underneath and around the sensor to prevent dropping the bolt or sensor into the lower timing cover.
unbolt and remove the sensor.
REVERSE THE PROCESS FOR REASSEMBLY.


>> TDC sensor replacement link:
https://www.civicforums.com/forums/7...placement.html

 
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Sounds like either your cam seal, or your crank seal is leaking. Take the cover back off and look around behind the cam sprocket (that's the one at the top), see if oil is dripping from the seal there. To see the crank (lower) seal you'd have to remove the lower cover, which means removing P/S pump, alternator,motor mount bracket, crank pulley, plus everything aforementioned.

 
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Oil is seeping through the rubber under the topics cover.

 
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I mean, it must be coming from somewhere under the cover, 'cause oil isn't going to be coming out of those wires that go through the grommet.

You have to look behind the pulley at the top in your picture there, that's where the cam seal is, I just replaced mine, it was leaking and oil was going all over under the covers because the belt turbulence was scattering it. Another thing I thought of on the way to work this morning is, when you put the valve cover back on, did you clean the gasket surface on the head thoroughly and put RTV sealant on the sharp corners of the gasket? Did you torque the valve cover bolts to the right torque?, and in the right sequence? The oil could be leaking out of the valve cover and into your timing cover.

 
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Look here.

 
Rep Power: 811

valve cover needs to be retightened after a few weeks of driving and everything settles. it will be too loose otherwise.

 
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no I did not do the cleaning;
I did not use any sealant;
I did not use a torque wrench, I used a regular 1.

 
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I retighten and one of the bolt - (front left) popped.

 
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The timing belt soon need to change that's what I have'nt taken the car to the mechanic, I plan to do every thing once - mileage is 91k km.

but in the meantime, I want to solve this.

 
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Problem solved. Take the valve cover back off, clean the gasket mating surface thoroughly,be careful not to gouge or scratch the aluminum, get a new gasket, apply sealant to the corners of the gasket where it meets the cam bearing caps, put it back on, tighten each bolt a 1/4 turn at a time in the right sequence, until you get the correct torque( 86 in-lbs or 10 Nm).

Sequence: 3 2
5 1 4
If you don't have a torque wrench, or know how to use one, don't even try, you will warp the valve cover, or worse, your head.(even though I don't think this light of torque would warp head, but don't take the chance.)
Just take it to the mechanic now, 91k is long enough to get out of your timing belt. I changed mine at 115,000, then had to change oilpan and pump recently, so I changed the belt again, 165,000. Not worth it to procrastinate.

 
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OK, I never knew this.