Rocker cover bolt leaking

[Gus]

Took my top manifold off yesterday and noticed that the rocker cover has a little oil on the top near the oil filler. I always use funnels and don't spill any oil. The oil must be leaking where a bolt isn't sealing properly.

I'm thinking it is the one above the spark plug hole.

Rest of the rocker cover is clean and dry

What can I do to seal this leak as I was wanting to paint the rocker cover. Is it OK to undo that bolt a bit and use something to seal it and then torque the bolt back down?

 

[dablk]

HI Gus,
Is it defo not overspill from topping up? Also have a google around the VVT solenoid seal.
Chris

 

[Danix60]

Try cleaning the area and see where its leaking from.

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[bozothenutter]

Clean area...take out bolt apply a little loctite to flange of bolt, put bolt back in.
But it could be the knocksensor....mine is always a little oily around there

 

[Gus]

Could well be vvt seal - going to replace that too.

found this pic, thanks to whoever posted it.

 

[DaveDreads]

I had one leaking a few years ago, removed the bolt, put some gasket sealant under the bolt's head, screwed it back in until it was just nipped, it never leaked again.

 

[Rubicon_]

Every Clio I've had has had a bit of oil there. Worth maybe changing the vvt seal as that is more than likely where it's came from, looking at your picture though it's not a lot.

 

[cjgower]

Mine does this too. Cleaned it up, painted it and it's come back. Not too bothered really. Yours doesn't look as bad as mine.

 

[Bear Head]

It'll be the Valve seal I would expect

 

[SmokeyTheBandit]

I agree mine had the same => was the vvt seal.

 

[Danix60]

How did you clean the old oil from there?

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[Bear Head]

How did you clean the old oil from there?

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Use a cloth or microfiber? You could wrap a tissue round a screwdriver for the small areas

 

[Gus]

Forgot about this thread.
This is what I used :

This is perfect for the small nooks and crannies also for getting the stubborn black bits.
It's too dark to show the end result but it is spotless.

 

[Gus]

Turned out it was the vvt sensor.

Unplug the lead and Remove the 10mm bolt holding the vvt. Then lift out the vvt solenoid.

Use a screw driver to pry the old gasket/o ring out.

Get the new o ring out and seat it in its place. Its a good time to clean around this area before as access is limited afterwards.

Use a 27-30mm socket and then a hammer to tap the o ring into place. This distributes the force and seats it really well.

Then just refit the VVT and retaining bolt.

 

[Danix60]

Wow looks like new !

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[Gus]

Just bumping this thread as its really useful for others that havent seen it. You guys helped me loads diagnosing the VVT seal and its such a cheap and easy fix to make your engine look good again.

 

[canky]

Thanks for bumping this i think i might have this issue?

 

[Gus]

View attachment 181996 View attachment 181995 Thanks for bumping this i think i might have this issue?

Definitely looks like it. It is very very common on 172/182 engines.

 

[Rojer]

I think mine may even have a similar issue, very nice guide/pics.

 

[Louis]

Think mine has this too, although i'm not entirely sure as it could've been a PO spilling oil as the nearest spark plug had some oil clearly on it when removed.
What's the best way to clean up the rocker cover? Degreaser?

 

[canky]

£13 for that seal rip of renault lol

 

[JamesBryan]

Think mine has this too, although i'm not entirely sure as it could've been a PO spilling oil as the nearest spark plug had some oil clearly on it when removed.
What's the best way to clean up the rocker cover? Degreaser?

Clean it up with brake cleaner.

I think i have one of these seals somewhere if anyone is after one.

 

[nathanc29]

77 00 106 385


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[Chris_Beer]

plenty of brake cleaner and some blue roll. jobs a good'un