1991 Accord - Oil Leak

Have the valve cover gaskets ever been replaced? That's typically a common source of leaks on this version of Accord.

I agree with Misfit, the valve cover gasket is the most likely culprit. When you replaced yours, did you put any ultra gray sealant at the corners of the gasket where the gasket makes a near right angle turn to go up over the cam bearing tower? Anyways, the distributor o-ring is easy enough to replace. Though keep in mind that sometimes the distributor itself is leaking. There's a seal inside for the distributor shaft. Pull of the cap and make sure that there's no oil inside the cap or distributor. If there's oil, you'll need to get a new (or good used) distributor body. The last time I checked, Honda did not sell these seals separately. You'll also want to check for the presence of red dust inside the cap. This is usually a sign of a failing distributor bearing. Again, if you find this, you'll need a new distributor body as there are no replacements from Honda available.

Eric

Red dust means that your distributor bearing is defective, and requires parts of all of the distributor to be replaced. In the case of my '93 Accord, the housing, cap and rotor were replaced.

three potential causes of the leak. in no particular order:

rocker cover gasket. distributor o-ring. distributor internal oil seal.

if the latter, replacement is the only practicable cure.

of the whole distributor

| Any help is appreciated.

| It was the o-ring My F20A 's distributor* too leaked oil in '06 til a recon * replaced it ; coil's insulation lacquer cracked, no output.