Community Member Credit: R&D Factory
Here are DIY instructions on how to replace the OEM seals on your Nissan VQ engine.
At R&D Factory, we service many Nissans and Infiniti’s daily and run into the same valve cover/spark plug o-ring leak. About 75% of the vehicles that we serve have the same problems. Even though it’s money out of customer’s pocket after spending so much money on these valve covers we were thinking there has to be a way to cut the cost so here we are. R&D has come out the kit will come with both driver and passenger side valve cover gasket, six o-ring gaskets, and simple instructions on how to replace them. Your warranty should and will cover leaking valve cover o-rings grommets. we do advise you to check for a leak before your warranty is over…. the whole idea of us making these o-rings grommets were for those who have leaking o-rings grommets yet their warranty is already over. We do drill out the old o-ring grommets with the hole saw size 2 inch. It is slightly bigger than the existing hole and slightly smaller than the o-ring
$75 for 6 Grommets (O-ring gasket)
$120 for 6 Grommets (O-ring gasket) and OEM valve cover gaskets (both side), PCV Valve o-ring
1- THIS IS A SIMPLE HOLE SAW (SIZE 1 7/8 INCH) THAT YOU CAN BUY FROM MOST HARDWARE STORE. WE GOT OURS FROM ACE HARDWARE AND IT WAS $7-11
2- THIS IS HOW YOUR VALVE COVER LOOKS WHEN YOU TAKE IT OFF OF YOUR ENGINE
NOTE PICTURE SHOWN MOST LEFT SPARK PLUG HOLE DRILLED.
3- WARNING “PLEASE DO NOT REMOVE BAFFLE PLATE” WARNING
4- POSITION THE HOLE-SAW CONCENTRIC TO SPARKPLUG HOLE AND DRILL BAFFLE PLATE SLOWLY AND CAREFULLY.
5- YOU WILL ONLY NEED TO DRILL JUST ENOUGH TO DRILL THROUGH THE BAFFLE PLATE (WE CLEANED UP ALL THE DEBRIS TO SHOW YOU CLEAR PICTURE DRILL ALL 6 POSITIONS AND CLEAN OFF DEBRIS WHEN DONE.
6- NOW YOU WILL BE ABLE TO POP OUT THE OLD O-RING GROMMET OUT OF THE VALVE COVER. PLEASE REPEAT 6 TIMES.
7- THIS IS WHAT IT WOULD LOOK LIKE WITH THE O-RING GROMMET OUT
8- USE BLACK RTV SILICONE ON TOP SIDE OF THE NEW O-RING GROMMET (WE USED CLEAR ON OUR DEMO PICTURE SO YOU CAN SEE BETTER)
9- PLACE THE NEW O-RING GASKET IN TO THE HOLE. NOW YOU ARE READY TO RE-INSTALL YOUR VALVE COVER GASKET TO YOUR ENGINE.