So if there is air in the pump, then what?TylerDurden wrote: ↑Wed Apr 19, 2017 5:13 pm Air in the little injector lines is totally normal.
There isn't much fuel flow through those lines, it's mostly the fuel that slips by the injector guts as the fuel lubricates the moving parts.
The air in the small lines may be accumulated over a longer period of time. Air in the pump gets whipped into microscopic bubbles by the whirling pump guts and those microscopic bubbles can get pushed to the injectors and get injected or work their way out the sliding injector guts.
What is key to look for, is a fine mist of bubbles in the big line returning to the tank when the engine is running, or a large bubble after sitting overnight. That indicates air in the IP. A clear line from the filter to the IP inlet is also good if you see the mist in the return.
Is it just a seal, or does that mean the pump needs a rebuild?
I ordered some liqui moly diesel purge. (No one sells it around here). I'll see if it smartens up my cold start issue..
I also ordered a timing tool set. Then I'll look for a compression tester.
Of course with my luck the alternator took a dump while I was out pissing around with it today.
The nickle, and diming has already begun..