Rep Power: 0

Hey guys noticed when I got in my sons 95 LX civic it was spuddering. I noticed the # 3 plug wire was not seated fully onto the valve cover then found the spark plug somehow came real loose so i tightend it down. Ive had the car for 1 year and this is the 1st. The guy before me replaced the plugs but did anyone ever see a plug come loose on its own, it could be it was not tightened to begin with but I doubt it since I have been driving it for a year.
thanks

 
Rep Power: 0

so I read up a little, their is some oil in the spark plug tube area and some on the wire boot and the other cyclinders have a little bit so I will replace the valve cover gasket, new wires, plugs, and the tube seal gaskets but why would the plug come loose from the cyclinder? Does the oil that makes it down to the plug thread loosen it? sorry for being so anul but I am a loyal honda owner.

Also should I have the valves adjusted? Dont have any history on repairs but the car has 150,000 and runs nice.

 
Rep Power: 518

You should have pulled the plug out and examined it before you tightened it.
If the gasket on the spark plug is not squashed, then the plug was never tightened correctly in the first place.

Many people don't tighten them enough (even professionals) and they CAN back out on their own. Yes, it could take a year for this to happen.

HTH

 
Rep Power: 518

The gaskets that caused this oil leak are deeper. You have to pull the cam journal caps up to change a set of seals around the base of the spark plug tubes.



#16 and #17 are the seals that leak.
You need 3 of #16 and 1 of #17.

Link to catalog (here) but I only picked a random 95 vehicle. You need to select your actual car.

No, it was just never tightened correctly. Check the rest of them?

Yes!
Timing belt?


HTH

 
Rep Power: 518

I have seen spark plugs come loose after a severe overheat, but you would have other, more pressing problems if that had happened.

 
Rep Power: 0

ok thanks Ezone, yes they did the timing belt and WP at 60k and 120k so Im going to have it done since it has 160 k on it and do all this other stuff at the same time, the car is clean being a northeast car and I love the old honda products, my buddy has a 92 prelude he bought new with 399k, 5 speed, only reg mait. love honda!!

 
Rep Power: 518

Hey, when I wrote "Yes" to the valve adjustment, it should be done immediately after you reinstall the rockers and cam caps when you change the 4 rubber seals on the plug holes.

IOW, Don't waste time adjusting valves before you take it all apart, because you are supposed to adjust them all over again when it goes back together.

HTH