Mine was leaking in that exact same spot. I scrubbed it with a wire brush and engine degreaser, then patched it with JB weld, right in place, no disassembly necessary. been holding for almost a month now, not one drop. It took like 20 minutes to clean and patch. The hardest part was finding the leak.
The pump on the np246gm transfer case will wear 3 pin holes, the 4th pump tab is in a thicker spot on the housing. You will hopefully notice the oil spots on the tailgate or hatch of your truck or suv before it grenades. A quick “road trip” fix is to clean the spots with a wire wheel and brake cleaner then apply a tube of permatex ultra gray over the outside of the 3 holes in the rear case half and viola’ temporary permanent fix… use jb weld quick steel if you don’t have time for the permatex to cure.
Hey Tom I recently took apart a NVG-136 from a 2005 Chevy Astro and I was wondering how the oil pump works? I see the internal splines and I'm guess the oil is suctioned from the sump and send to places where its needed but I'm not sure how the oil gets there. I was wondering if you could explain how the oil gets from the pump to the places that need lubrication thanks.
