Valve Cover Gasket? - Toyota 4Runner Forum

mdominic · 04-08-2015, 08:31 PM

My mechanic told me that I should replace the Valve Cover Gasket because it is leaking oil.

I read on here that a lot of people had loose bolts. I checked mine and they could be turned with my fingers. So I tightened them and cleaned off the leaked oil.

HOW LONG will it take to see new oil leakage if they do indeed need to be replaced?

nc-grayson · 04-08-2015, 09:23 PM

Depends on how bad the leak was, and ultimately if the loose bolts were your only cause of leakage.

Oil spreads everywhere, so a small amount looks like quarts.

Just give it a day or so and look again

animator · 04-08-2015, 09:40 PM

How tight did you tighten them? Reason for asking is because if they're too tight, in addition to needing new seals, you'll need new covers as well...

FWIW, I tightened mine down to spec after they started leaking and it helped a lot. Seals still need replacing, but it'll get me by another year...

mdominic · 04-08-2015, 09:43 PM

Quote:

Originally Posted by animator

How tight did you tighten them? Reason for asking is because if they're too tight, in addition to needing new seals, you'll need new covers as well...

FWIW, I tightened mine down to spec after they started leaking and it helped a lot. Seals still need replacing, but it'll get me by another year...

I read that the cover was easily broken. I didn't tighten them with force. I just made them snug.

ocreptileguy · 04-08-2015, 09:53 PM

If your going to dive in and tighten the bolts save your self a lot of grief and replace the gaskets.
Along with the following:
Spark plugs and wires
Spark plug tube seals
Pcv valve and grommet
Re-seal half moons
Cam shaft plugs
Intake plenum gaskets
And get yourself the TRD supercharger throttle body gasket (it's O shaped as opposed to D)
Since you will be taking of vacuum lines spend the couple dollars and replace them as well.

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