I noticed a long time ago maybe 6 months that I have oil in the farthest to the left spark plug well and not in any others. Theres still oil in there but not much, it hasnt gotten on the spark contacts I dont think. I usually stick a rag down there and soak up the oil. Pretty sure its a valve cover leak, just want to know if its a crucial thing. Am I going to do any damage to the engine if I dont replace the gasket? Could it cause misfires? I just had a new set of wires put on as well, havent changed the spark plugs though. Is it fairly simple to replace? Im just worried I wont seal it correctly and cause more leaks. I have a 95, 110k miles.
2005 Infiniti G35 Sedan 5AT 1995 Nissan Altima GXE 4AT
just removed the wire but left the plug in I never removed the plugs. Dropped a cloth down in the small hole and soaked up the oil, there wasnt much, im just wondering if it can damage my engine if i dont change the gasket.
Oil on the plugs is never good in general, but a leaky valve cover can also cause other problems in how the car runs. With enough of a leak you can suffer the symptoms of a vacuum leak which will rob you of power. It's a fairly quick and simple job to do.
Yeah, it will not cause immediate problems, but it can lead to comlications later down the line. If there is oil on the plugs, it can result in the spark plug not fully sparking, thus less detonation, less gas mileage, etc. Also, you are losing oil to that leak, so you need to monitor your oil level. It is really easy to replace, only takes about 30 minutes.
if its the valve cover, it very easy to fix....undo the valve cover and change the gasket. There is also another gasket for the spark plugs...change it at the same time. It should cost you like $20 to get the two gaskets from the dealer.
so i've read that it's a simple diy project, but i've "heard" that it's more complicated than just removing screws around the valve cover? is that just for some other cars? i was told that after you take the valve cover off, that there are other components under there that are just standing up ( like springs or something) and it has to be set back on there just right? or maybe i'm talking about something else is the head gasket under the valve cover?
auto to manual swap/valve cover powder coated red/ACT SS clutch + 240sx Fidanza flywheel/b&m short shifter with an 03 Altima oem shift knob/JWT S1 cams/SWA pulley/ebay wai/obx 4-2-1 header/greddy catback exhaust/eibach pro kit springs/kyb gr2 struts
its probably not the valve cover gasket. its the gasket that goes under the valve cover, to seal the spark plug wells.
its an easy fix. you need the gasket for the spark plug wells, and a tube of rtv gasket maker. pull the valve cover and clean all the old gasket material off it. replace the spark plug gasket, then new rtv to seal the valve cover. half an hour should do it.
uhh you must replace the valve cover gasket any time you remove the valve unless the gasket has just been put in their recently (like within a week). besides im sure they don't sell just the spark plug well gasket; they sell both as a set. should take you no longer than 15 minutes.
R.I.P. 2000 altima SE
2003 Majestic Blue 6 speed maxima
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.