So... I'm currently working on a single cam zc.. When I checked the plugs, one came out drenched in oil.. The spark plugs are black.. Checked the compression, it's hella low.. I can smell as if it was running rich.. It backfires once u try and turn it on..

I'm changing out the gaskets and plugs..

Would anyone happen too know what causes this or how can it be fixed?

 

Chances are it's your rings... if it where valve seals then compression wouldnt drop that low. just my thoughts but i could be wrong

 

Rings fa sho. sounds like its time 4 a dual. lol

 

Was it the top of the plugs covered in oil? If so, change out your tube seals....they are cheap and easy to change.

 

true...didnt think about if it wuz the top or bottom of the plugs...lol

 

either way hes getting "low" compression, a number would be nice to work with

 

The spark side of the plug was drenched in oil..

Now, what would cause the rich smell?..

 

timing.... and im 90% sure its the rings...

 

what where your compression test results?

 

unspent fuel due to low comp. prob have blowby

 

my mistake.. I just completed a compression test on all cylinders and they all came out at 150.. I took out the plugs and looked inside, seems as if all pistons have a thick coat of oil.. The plugs and gaskets were changed.. Even then, when I try starting the car, it boggs out.. I checked the firing order and it's correct..

WTF!!!!.. Lol

 

anyone?

 

i had the same problem in my 88 hatch all my plugs were coming out oil soaked and i had a spuddering problem and one of my cylinders wasnt firing. after changing the rings and some new items on the firing side of things she was running ship shape.

 

rings ...

 

Rings and possibly valve seals, but rings for the compression also.

 

yeah try to change the O ring