oil in plug wells

[shorty]

Hi all,
1995 SHO MTX
I am trying to solve a "crank but no start" prolem and thought to inspect the plugs. This is not an emergency since I can drive my backup vehicle.

All 3 front wells were full of oil (by "full" I mean over or near the top of the plug). I have not inspected the rear plug wells. I am debating drying the wells, replacing the plugs, and either cleaning or replacing the plug wires and boots vs. doing all of that plus trying to stop the oil leak.

My question: What is the likely source of the oil in the wells? How best to fix it?

Thanks,
shorty

 

[zach44102]

valve cover gaskets...

 

[91PDXmocha]

Your spark plug tube seals are leaking into there. You need a valve cover gasket set and a new set of APP5224's , new set of wires. You shouldnt be debating if they are that full it needs to be done ASAP.

I dont think your no-start is that though, while it is possible . Pull the codes see what comes up.

 

[SHOtime2511]

Good advice here.
The plug wires do not seal the plug well,the tube seals on the inside of the valve cover does.

 

[frosho]

Your spark plug tube seals are leaking into there. You need a valve cover gasket set and a new set of APP5224's , new set of wires. You shouldnt be debating if they are that full it needs to be done ASAP.

SHOs take p/n APP3924, not APP5224. Different plug seat styles.

 

[LOUDSHO92]

You need valve cover gaskets: SHO Source

Now would be a good time to do a top 60k for the plugs, wires and valve adjustment.