Cannot replace valve cover spark plug seals - Nissan Forum
GA16DE 1.6L Engine Engine Discussion: 91-99 Sentra, 95-98 200SX, 91-93 NX1600

 
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#1 Old May 27th, 2007, 01:53 AM
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Question Cannot replace valve cover spark plug seals

The valve cover spark plug seals appear to be underneath some sort of tan (maybe it was white to begin with and turned tan/brown cause of the oil hitting it over time) plastic piece and this piece seems to be "ADHERED" to the top valve cover. I did not know this and when I tried to pull the piece where it looks like you'd pull to take it off it just cracked a piece of plastic off. I put it back together with some gas/oil resistant adhesive/sealant and its on there really good now again. In any case I received with a new valve cover gasket new spark plug seals and while I don't believe the old ones were leaking of course I wanted to replace those too since I had them. It appears as if you'd have to buy an entire new valve cover to replace the spark plug seals? IS THIS TRUE? ANYONE ELSE RUN INTO THIS ON A 1999 NISSAN SENTRA GXE WITH THE GA16DE TWIN CAM ENGINE?
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#2 Old May 27th, 2007, 11:29 AM
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I replaced my valve cover gasket on 92 Sentra. Replaced 11 grommets as well as small rectangle square inside the valve cover.

I also brought spark plug seal. When I tried to pull the old seal it broke apart. We were in a panic. Finally my brother figured out by comparing the old and new spark plug seal. The new seal was bigger. The old spark plug seal is imbedded in a STEEL RING. You have to bend the steel ring in order to get it outl. ( The valve cover is Cast Iron). We replaced one spark plug seal and left the other three alone since there wasn't any oil leak on spark plug.
I wanted to make sure the valve cover fits on again. The new spark plug seal was put on with a wood and tapping with hammer.
#3 Old May 27th, 2007, 07:50 PM
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Question

I left the old ones on too and just cleaned them. They weren't leaking either. The 1999 Sentra GXE GA16DE engine has a plastic valve cover, but sounds like the same thing that it was embedded into it as you experienced as well. I don't understand this. Why would valve cover gasket kits come with the spark plug seals if they can't be replaced without buying a totally new valve cover. ANYBODY?
#4 Old May 27th, 2007, 08:21 PM
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when i pulled mine off they were stuck to the cover as well, altho i did not try to remove them

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#5 Old May 30th, 2007, 12:20 PM
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The B14's are shrouded by plastic, I have seen people use a pry hook tool to remove them and put new ones in.

The B13 has a metal valve cover and the seals are easy to replace...

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#6 Old Jun 19th, 2007, 05:09 PM
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my plastic cover on my 98 200sx has no replaceable seals....it does have and integrated seal which is permanent to the cover. nissan wants 150.00 for a new cover but i am a machinist and thought i would try something different. i bought a gasket kit which i am assuming those seals were for the aluminum valve cover. i cut out the original seals on a cnc mill at work and bored them for a light press since the cover is plastic (about a .001 press fit) it was a success and it only took about 30 minutes to do. they are installed and working good.
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