1/21/13, 6/10/14: Completed all tasks.
- Clean RACOR Fuel Filter (500FG Series) and replace its filter element.
- Slack the retaining nut to release clamp and remove the primary filter assembly with crescent wrench.
- Remove Vacuum Gauge with Crescent Wrench
- Remove Racor Parker 2 micron fabric filter, pulling from the plastic lift pullers.
- Remove 4 retaining nuts and drop the glass bowl (1/4 wratchet) using a small plastic bucket below in case of spillage.
- Disassemble and clean the bowl and fittings with flathead screwdriver and shop rags.
- Reassemble the glass bowl and attach with the 4 nuts, reusing the original orange gasket.
- Note: 1/20/13, gasket was in like new condition.
- Insert new 2 micron filter (Parker Kit Number 15432 or WIX 33796), the small orange gasket and the large black gasket included in the kit. Use diesel fuel to lubricate the gaskets.
- Reattach the unit.
- Fill with clean diesel.
- Install the gauge temporarily while we change the engine fuel filter.
- Lift the rubber stopper with your fingernails to relieve pressure on the gauge and center the indication back to zero.
- Replace the engine fuel filter.
- Slacken the set screw in the center of the engine’s securing fitting per the engine manual (7/16th open crescent wrench).
- Slide a plastic bag under and around the filter to catch about a cup of fuel while loosening the filter.
- Have a small bucket available to drop the fuel-laden plastic bag in, and place a spill rag to soak up the few drops after removing the filter.
- Let gravity drop the filter and bottom fitting into the plastic bag with the fuel and wait until the fuel stops dripping.
- Place the bag in the bucket, clean the bottom fitting and place it aside.
- Take the new filter (FRAM C1191A or Napa 3166 or WIX 33166), lube the new gasket with fuel and reassemble. Tighten 1 quarter turn after initial contact of the gasket against the metal (finger tight).
- Tighten locking nut finger tight.
- Prime the system and run the engine:
- There should be no need to bleed the entire system after a filter change. Follow these steps to prevent having to complete a full engine bleed.
- Remove the primary filter’s gauge, fill with clean diesel, and replace gauge.
- Pump the mechanical lift pump by hand until the secondary (engine) filter is full.
- There is no way to see the level of fuel in the filter.
- Around 50 pumps should do it.
- If there is a little air in the filter, it should be no problem. The air will follow the return line back to the fuel tank. If the shaking engine jiggles a couple bubbles into the line to the injector pump, the engine should work through it and run smoothly within a few seconds.
- Crank the engine (Never longer than 15 seconds!)
- If the engine won’t start within 15 seconds, there is a problem; Most likely air in the system.
- A full engine bleed is required. It’s not hard, just a little more time consuming.
- See “Bleeding the Bleedin’ Perkins.”