I've been leaking oil from the drivers side of the motor and my fear was the tappet cover which I just replace..... But turns out the oil is coming from a port in the block just below the motor mount. (see picture).

My question.... Is this threaded? or was there a plug or something in the hole that maybe blow out?

 

And how do I keep this from happening again?

I connected an oil pressure switch in that general location a long time. It was a threaded hole with a plug in it. But as I remember the hole was horizontal and not vertical like shown in the picture. It does look like something was installed there at one time. Is that your engine in the picture?

 I would also think that if it Is the same as I used it leak like a flood since the hole was under pressure.

No that's just a picture I found on the Internet but thats what my block looks like.

It's not shooting oil out or even dripping while it's idles, so maybe it's not where it's leaking from. Im just getting oil on the driver side from somewhere, everything gets coated on the drivers side at about the bottom of the pcm down, when I drive it for about a week. I can see most of the tappet covery gasket and it looks pretty clean. So I don't think that ls the issue, plus I just changed it back in February(12v cover) I thought maybe it was coming from the spot in the above pic bc when I put my finger over the hole it felt like there was a little pressure like crank case pressure. Maybe it was just my imagination lol

The port I used can be used for a mechanical oil pressure gauge so it would be under pressure. Maybe your vacuum pump needs to be resealed or your oil pan is leaking. The way the air blows around under there its not always easy to see where its comi g from. FYI, it's the ECM on the block, PCM is on the firewall.

That bracket in the picture has a gasket behind it.  Could be leaking from there 

Forgot about pump bracket, definitely could be source.

Yeah I'll have to check that also I forgot about it too. I cut the original bracket down bc I'm running a fass. 

1 hour ago, 01dodge24v5.9 said:

Yeah I'll have to check that also I forgot about it too. I cut the original bracket down bc I'm running a fass. 

Out of necessity or convenience? 

1 hour ago, dripley said:

Out of necessity or convenience? 

I got mine out of the way because I felt it was necessary for convenience, I did save it though so I can always weld it back on. Sorry Didn't mean to intrude

Yeah I did away with mine bc it is in the way and it was easy to cut down.

Do any of the bolts on the drivers side go through to oil ports?

I have no idea but if I had to guess, no.

It's kind of hard to tell from the picture but I wonder if that's an optional spot for the dipstick tube. A lot of motors that are installed in a bus or stationary equipment for example will have the dipstick moved for clearance issues. 

 

If I remember correctly (if being key word)  I do think the lift pump mounting bolts do need to be sealed to prevent leakage.  

 

L8tr

D