Oil in spark plug #3

[Jking72]

2nd from the left spark plug had a fair amount of oil on the rubber boot and #2&4 had maybe a drop on them...i've had the distributor cap and Valve covers changed...any ideas?

It doesn't sputter or its not sluggish like the plug is dead, it still starts fine...

1992 CB7 EX with 297,XXXKM on it

[FrostWhiteCB7]

Possible the spark plug tube seals. Most people don't change these when they buy the valve cover gasket kit.

http://www.cb7tuner.com/vbb/showthread.php?t=9300

[10thAnnivCB7]

^ x2 ,, they just get hard and break due to heat or just being old ,, not hard to replace at all

[dhill_cb7]

^ x2 ,, they just get hard and break due to heat or just being old ,, not hard to replace at all

Make sure you know how to do a valve adjustment because you must remove the rocker assembly to get at the lower seals.

[KrazyRdR83]

Make sure you know how to do a valve adjustment because you must remove the rocker assembly to get at the lower seals.

& that's prob why some people don't change them. I have the same issue, plan on doing the gaskets & adj

[dhill_cb7]

Take your time and follow the manual (haynes or helms). Oh and if you don't have a torque wrench either rent one or buy one. It is a good investment since most components need to be torqued.

[JDMK1DD]

Make sure you know how to do a valve adjustment because you must remove the rocker assembly to get at the lower seals.

what do you mean ?
i thought you just remove the valve cover
change the vcg
an replace the o rings

[dhill_cb7]

There is two sets of o rings. Uppers and lowers. Lower are most likely why you have oil in your spark plug wells.

[browncali]

lol when i took mys off where hard nd it come off in pieces

[Jking72]

so im kinda in a bind right now, moneys tight and i cant really afford to fix myself or pay to have it fixed, realistically how much time til this will start to effect my engine adversely?

[Fleetw00d]

A Felpro gasket set including uppers and lowers is less than $30. The rest is relatively easy if you follow dhill_cb7's advice. Rent or borrow a torque wrench. Back off all the adjusting screws before removing the rocker assembly, then adjust the valves after properly torquing the retainers when reassembling. This is to the torque applied goes into properly seating the rocker asembly, not so much into compressing valve springs.

[Jking72]

ya $15-$30 ain't happening around here i priced them out at a few placed and there about the same $55-$58 for the Felpro set, damn mark up

[dhill_cb7]

Honestly mine was like that for a few months but i barely drove it until i was able to get that fixed because i heard it can cause your engine to misfire and do more damage.

But if you do have oil in there then you should replace all the plugs after you do the uppers and lowers. Then as fleetwood mentioned correctly re torque the rocker and adjust your valves.

[cmhondaboy]

Yea it definitely cause a misfire.. Every oil change I have to pull the number 2 and 4 plugs to drain the oil from the tube because it starts misfiring. I really need to change those tube seals soon!

[Jking72]

one more question, i changed the lower tube seals and the valve cover the upper tube seals were still pliable and rubber like so i left them alone...followed the DIY, DOES the kind of spark plugs matter?

I had NGK in prior to starting the seal swap and there weren't any that i could see when i bought the new spark plugs but the spark plugs Bosch Platinum +4...the only thing is that i dropped one of the NGK when i removed them, would that effect that plug if i swapped the NGK's back in? after using google to search the site i found the general consensus is NGK or nothing!

To sum up pre seal swap plugs were NGK, dropped one when i took it out, would that plug be faulty if i swapped the NGKs back in over the bosch Platinum +4s?