@cjonezy .
There's alot more to this that only experience or a LOT of research is required to have a successful outcome. Or, pure luck.
1. Somebody "worked" on that cam before, and given the result, wasn't following the factory service manual.
2. Inspection of the cam, lifters, and timing gears, and the cam thrust plate for wear and tear.
3. In my opinion, the cam bearings should be replaced with a new cam.
4. The lifters need to be resurfaced. Pushrods?
5. There's a gasket between the engine block and the front plate that is known to leak. It can only be replaced with the cam gear removed.
6. There's a special plug at the rear of the block (OEM ONLY) that is known to leak, and likely needs to be removed to replace the cam bearings.
Other seals, gaskets, bolts that need sealer, etc I haven't listed.
Good luck!