Misfire, where do i go from here. (Page 15/18)
zkhennings MAR 09, 02:24 PM
It should be simple to find the leak, blast everything clean with brake clean, unplug the injector, get someone to crank the car over to build oil pressure while you look from underneath to see where it originates.
Dukesterpro MAR 10, 01:20 PM
It appears to be coming from directly under the oil filter. It doesnt do it cranking only when running.

No cracking or other noticeable damage
PhatMax MAR 10, 02:13 PM
Pull the filter off and look at the gasket. Could be a split in the filter….or seam.?…?
Dukesterpro MAR 10, 06:05 PM
I already did, and replaced the filter. Same thing
Patrick MAR 10, 07:36 PM
This is the duke's oil filter mount. Where do you believe the oil might be escaping from? The push rod gasket is right above the oil filter location. That would be my guess (if it's not from the valve cover gasket).

[This message has been edited by Patrick (edited 03-10-2023).]

Dukesterpro MAR 13, 07:16 AM
Somewhere in this general vicinity. which leads me to believe its the oil filter. But what's causing the seal to blow out??? Its been soaking in diesel all week. Im going to refresh it today and see what happens.

Its just pouring so much oil. Its like theres a hole. (There isnt I checked.)

[This message has been edited by Dukesterpro (edited 03-13-2023).]

PhatMax MAR 13, 05:44 PM
Question……sorry if I missed it…. It only leaks when running ? ….is the PCV valve bad ? Getting too much internal pressure ?
Patrick MAR 13, 10:21 PM

quote
Originally posted by Dukesterpro:

...which leads me to believe its the oil filter. But what's causing the seal to blow out???



You've been asked this before... but what was the condition of the seal on the two oil filters you've removed?


quote
Originally posted by PhatMax:

Pull the filter off and look at the gasket. Could be a split in the filter….or seam.?…?



A leaking oil filter could be one of three things...
Screwed on too loose
Screwed on too tight (and splitting the seal)
Faulty filter(s)

I suspect both oil filters you've installed have been the same brand and type. Perhaps it would be worthwhile to try a different brand of filter and see what happens.
Dukesterpro MAR 14, 07:17 AM
Hello everyone


Sorry my communication has been spotty. I really appreciate the help you have provided. The issue has hopefully been fixed. I will explain.
The condition of the oring seal was always a concern. Whenever I spun the filter off after a leak. It had what looked to be a hernia on the circle. The filter would be very tight regardless of how it was tightened down and that little hernia spot would appear. (Wasn't obvious till i took the intake off and look right down at the filter.

I soaked the crankcase in diesel last week. Spinning the engine over on the starter with no plug. I kept doing this till I saw diesel at the rockers.

Drained the diesel last night. Refilled with fresh oil and a Fram filter this time instead of a Delco. Reinstalled the intake and the duke fired up. No oil leak. Ran the engine up to operating temp. Drained the now shockingly dirty 15 minutes oil.

Will refill tonight with fresh oil and a new Fram ultra filter (I was using AC Delco previously) hopefully got this issue whipped.
ArthurPeale MAR 14, 10:23 AM
Wix filters are considered to be far better than Fram.

what is this "hernia" thing you're talking about ?