i was tightening the valve cover bolt, when i overtorqued and snapped the threads inside on the head, what to do will i be leaking oil from that spot

 

it was only one bolt top left of the valve cover, its a d16z6

 

Throw some rtv over that area for now and buy a new bolt asap.
You will need to get an EZ out from the hardware store (NOT home depot) and extract the damaged portion. Its very easy.

While youre getting the EZ out, pick up a small tq wrench that reads 0-20ft/lbs so you dont over-tighten the bolts again

 

What's the spec on the torque for those bolts anway? Is it 20 as stated above?

 

it wasnt the bolt , it was the threads , the bolt is in one piece

 

the bolt comes out, what is rtv, theres a small piece of metal attached to the bolt from the head

 

I did the exact same thing to two bolts on my Y8 Valve cover. You have to put RTV (gasket maker) around the head, and take it to a cylinder head shop. The old threads have to be drilled out, tapped, and then replaced with new helicoils. It takes about 20 minutes total.

 

Oh ho...I read that backwards. My mistake.

RTV is Hondabond. Equate it to silicone sealant for engines. Permatex Ultra Grey is the oem equivalent.

You have a bit more work on your hands here than what I lead previously.
The best bet, is to buy a simple Helicoil kit and rethread the head for the valve cover bolt.
If youve never done this, I assure you its fairly simple...if you take your time and use your head.
Full kits come with the inserts, a threading tool, and the appropriate tap. You just need to source the proper drill bit. Kits even come with directions, but you should look online for general how-to's first, just so you know what youre getting into.
In the kit, you are basically removing all the threads that you damaged, and are replacing them with a coiled insert, that fits the og bolt.



The proper size you need is an M6 x 1.00 thread.

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(The proper spec on these bolts is 7.2ft/lbs. 0-20 is a good range for other bolts, however)

 

You'll have to pull the cover off and repair the threads, I'd recomend Timesert product for thread repair personaly.

The FSM calls for 7 lb-ft. on those bolts.

 

Why in the world would you use a Timesert insert for a valve cover bolt??????

Helicoil for this job is 100% fine.

If it were a head stud hole or for the crank mains, yes, Timesert indeed. Otherwise, its just ridiculous overkill.

 

Also be sure you DONT have ANY metal shavings left behind once you're done. I'd invest in a magnet, or your engine may be in very rough shape in a very short time.

 

Except, the engine is made out of aluminum...and magnets only work on iron, nickel, and cobalt

Vacuum with a straw duct taped into the hose works for me, along with some compressed air and brake cleaner.