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Oil above spark plugs
1994 - 4 cylinder Honda Accord - 310K
I changed the spark plugs 11,000 miles ago after I replaced the head gasket. Lately, I seem to be getting a rough idle that turns into a very slight vibration at higher rpms. I thought that maybe I had solved the problem by doing the "Italian Tuneup" (driving the "snot" out of it), but it stills exhibits the same problem. The vacuum hoses, rotor, and distributor all checked out fine. I haven't cleaned the throttle plate or idle air control valve yet. I figured I would check out the spark plugs first. The plugs looked fine, they were not fouled and still gapped correctly. However, when I pulled the two outside plugs, the wells that they came out of were both filled about halfway with oil. The oil did not appear to get past the "rubber boot" of the spark plug wire, but it appeared that something wasn't correct. I have sometimes in the past check the oil, and found that it would be low one day, and normal the next. I often wondered if the oil was "migrating" above the engine somehow. Can someone shed some light on what might be happening here. Would it do any harm to try an oil additive like Seafoam? Thanks, Gary |
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#2
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Oil above spark plugs
GK wrote:
> 1994 - 4 cylinder Honda Accord - 310K > > I changed the spark plugs 11,000 miles ago after > I replaced the head gasket. Lately, I seem to be getting > a rough idle that turns into a very slight vibration at higher > rpms. I thought that maybe I had solved the problem by > doing the "Italian Tuneup" (driving the "snot" out of it), > but it stills exhibits the same problem. The vacuum hoses, > rotor, and distributor all checked out fine. I haven't cleaned the > throttle plate or idle air control valve yet. > > I figured I would check out the spark plugs first. The plugs > looked fine, they were not fouled and still gapped correctly. > However, when I pulled the two outside plugs, the wells that > they came out of were both filled about halfway with oil. The > oil did not appear to get past the "rubber boot" of the spark > plug wire, but it appeared that something wasn't correct. I > have sometimes in the past check the oil, and found that it would > be low one day, and normal the next. I often wondered if the oil > was "migrating" above the engine somehow. Can someone shed some > light on what might be happening here. > > Would it do any harm to try an oil additive like Seafoam? > > > Thanks, > > Gary > > oil leak needs new rocker cover "b" gaskets. rough running maybe a balance shaft timing issue since you've had the belts off. forget oil additives. |
#3
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Oil above spark plugs
"jim beam" > wrote in message ... > GK wrote: > > 1994 - 4 cylinder Honda Accord - 310K > > > > I changed the spark plugs 11,000 miles ago after > > I replaced the head gasket. Lately, I seem to be getting > > a rough idle that turns into a very slight vibration at higher > > rpms. I thought that maybe I had solved the problem by > > doing the "Italian Tuneup" (driving the "snot" out of it), > > but it stills exhibits the same problem. The vacuum hoses, > > rotor, and distributor all checked out fine. I haven't cleaned the > > throttle plate or idle air control valve yet. > > > > I figured I would check out the spark plugs first. The plugs > > looked fine, they were not fouled and still gapped correctly. > > However, when I pulled the two outside plugs, the wells that > > they came out of were both filled about halfway with oil. The > > oil did not appear to get past the "rubber boot" of the spark > > plug wire, but it appeared that something wasn't correct. I > > have sometimes in the past check the oil, and found that it would > > be low one day, and normal the next. I often wondered if the oil > > was "migrating" above the engine somehow. Can someone shed some > > light on what might be happening here. > > > > Would it do any harm to try an oil additive like Seafoam? > > > > > > Thanks, > > > > Gary > > > > > > oil leak needs new rocker cover "b" gaskets. rough running maybe a > balance shaft timing issue since you've had the belts off. > > forget oil additives. When I put the belts back on, I remember wondering if I had properly adjusted the tension on the timing belt. I think I was having a hard time accessing a bolt. Could this cause a rough idle ("dieseling") and a very slight vibration at higher rpm's? |
#4
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Oil above spark plugs
"GK" > wrote in
: > 1994 - 4 cylinder Honda Accord - 310K > > > I figured I would check out the spark plugs first. The plugs > looked fine, they were not fouled and still gapped correctly. > However, when I pulled the two outside plugs, the wells that > they came out of were both filled about halfway with oil. The > oil did not appear to get past the "rubber boot" of the spark > plug wire, but it appeared that something wasn't correct. I > have sometimes in the past check the oil, and found that it would > be low one day, and normal the next. I often wondered if the oil > was "migrating" above the engine somehow. Can someone shed some > light on what might be happening here. This has been a common one in the past few days... See he http://www.tegger.com/hondafaq/oilyplugs/index.html -- Tegger The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
#5
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Oil above spark plugs
GK wrote:
> "jim beam" > wrote in message > ... >> GK wrote: >>> 1994 - 4 cylinder Honda Accord - 310K >>> >>> I changed the spark plugs 11,000 miles ago after >>> I replaced the head gasket. Lately, I seem to be getting >>> a rough idle that turns into a very slight vibration at higher >>> rpms. I thought that maybe I had solved the problem by >>> doing the "Italian Tuneup" (driving the "snot" out of it), >>> but it stills exhibits the same problem. The vacuum hoses, >>> rotor, and distributor all checked out fine. I haven't cleaned the >>> throttle plate or idle air control valve yet. >>> >>> I figured I would check out the spark plugs first. The plugs >>> looked fine, they were not fouled and still gapped correctly. >>> However, when I pulled the two outside plugs, the wells that >>> they came out of were both filled about halfway with oil. The >>> oil did not appear to get past the "rubber boot" of the spark >>> plug wire, but it appeared that something wasn't correct. I >>> have sometimes in the past check the oil, and found that it would >>> be low one day, and normal the next. I often wondered if the oil >>> was "migrating" above the engine somehow. Can someone shed some >>> light on what might be happening here. >>> >>> Would it do any harm to try an oil additive like Seafoam? >>> >>> >>> Thanks, >>> >>> Gary >>> >>> >> oil leak needs new rocker cover "b" gaskets. rough running maybe a >> balance shaft timing issue since you've had the belts off. >> >> forget oil additives. > > > When I put the belts back on, I remember wondering > if I had properly adjusted the tension on the timing belt. > I think I was having a hard time accessing a bolt. Could this > cause a rough idle ("dieseling") and a very slight vibration > at higher rpm's? a little, yes. when the belt flops about, the timing flutters and that leads to roughness. you can see that if you use a timing light and check the ignition timing - it leaps about. but i suspect the balance shaft is the main culprit. need to get back in there and check. the timing belt is easy enough to tension - google this group - i've posted it several times. check that first, then ask again if you have a problem. |
#6
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Oil above spark plugs
GK wrote:
<skip> > When I put the belts back on, I remember wondering > if I had properly adjusted the tension on the timing belt. > I think I was having a hard time accessing a bolt. Could this > cause a rough idle ("dieseling") and a very slight vibration > at higher rpm's? Minor nit, dieseling is not a rough idle - it refers to a spark engine continuing to run after the ignition is shut off: Dieseling in spark-ignition engines A gasoline (spark ignition) engine can sometimes act as a compression ignition engine under abnormal circumstances, a phenomenon typically described as pinging or pinking (during normal running) or dieseling (when the engine continues to run after the electrical ignition system is shut off). This is usually caused by hot carbon deposits within the combustion chamber that act as would a glow plug within a diesel or model aircraft engine. Excessive heat can also be caused by improper ignition timing and/or fuel/air ratio which in turn overheats the exposed portions of the spark plug within the combustion chamber. Finally, high-compression engines that require high-octane fuel may knock when a lower-octane fuel is used. http://en.wikipedia.org/wiki/Diesel_...nition_engines |
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