Oil Seeping out of spark plug well AFTER replacing valve covers. - G35Driver

Jan 5, 2019 | 03:48 PM

MD99

Thread Starter

Registered User

Joined: Jan 2019

Posts: 8

Likes: 0

From: Maryland

Silver 04 G35 Coupe AT

Oil Seeping out of spark plug well AFTER replacing valve covers.

04 G35 Coupe AT with 170XXX miles. Oil was leaking from passenger side valve cover towards the front of the engine out of valve cover gasket and front most spark plug well before replacing and now the same thing is happening again after replacing valve covers (eBay valve covers and Felpro valve cover gaskets) but towards the rearmost spark plug well. No oil coming out of the actual valve cover gasket. I’m thinking maybe this is happening because the valve covers were from eBay, but could it be more deep than that? Any advice appreciated.

Jan 5, 2019 | 05:33 PM

Pbfoot

Registered User

Joined: Nov 2018

Posts: 231

Likes: 24

04 G35 Sedan performance package. 70k Eibach springs and sway bars. 19 inch wheels. Plenum spacer.

Yep. Ebay covers are no good.

Jan 5, 2019 | 06:41 PM

MD99

Thread Starter

Registered User

Joined: Jan 2019

Posts: 8

Likes: 0

From: Maryland

Silver 04 G35 Coupe AT

Quote:

Originally Posted by Pbfoot

Yep. Ebay covers are no good.

Thought so. I’ll be replacing once again with oem this time and give updates. Thanks

Jan 5, 2019 | 07:09 PM

Pbfoot

Registered User

Joined: Nov 2018

Posts: 231

Likes: 24

04 G35 Sedan performance package. 70k Eibach springs and sway bars. 19 inch wheels. Plenum spacer.

https://conceptzperformance.com/nissan-infiniti-nissan-oem-valve-cover-set-w-gaskets-vq35de-nissan-350z-infiniti-g35-m35-fx35-13264-am600-10_p_28857.php. Put a little gasket sealer on the bottom of the spark plug seals as insurance. Use brake parts cleaner to remove any residual oil on the cylinder head mating surfaces to ensure good sealing. Apply sealer per the service manual on the rest of the valve cover. A little goes a long way due to compression when you tighten the cover. I prefer Permatex black gasket maker.

Last edited by Pbfoot; Jan 6, 2019 at 05:15 AM.

Jan 5, 2019 | 10:32 PM

Urbanengineer

Super Moderator

iTrader: (3)

Joined: Jun 2013

Posts: 11,174

Likes: 1,044

From: OH-IO

Quote:

Originally Posted by Pbfoot

https://conceptzperformance.com/nissan-infiniti-nissan-oem-valve-cover-set-w-gaskets-vq35de-nissan-350z-infiniti-g35-m35-fx35-13264-am600-10_p_28857.php. Put a little gasket sealer on the bottom of the spark plug seals as insurance. Use brake parts cleaner to remove any residual oil on the cylinder head matting surfaces to ensure good sealing. Apply sealer per the service manual on the rest of the valve cover. A little goes a long way due to compression when you tighten the cover. I prefer Permatex black gasket maker.

Me too, permatex FTW.