- Engine Products
- Exhaust Products
- Tech Tips, News & More
- Free Tech Tips
- #162: Cummins B Series Injector Protrusion
- #163: Cummins 4 and 6 B Series Short Block Upgrades
- #164: Upgrading Your Twin Disc/Rockford or Auto Clutch PTO
- #165: Deutz 912 Diesel Connecting Rod Bolts
- #166: Block Heaters, Glow Plugs, and Immersion Heaters for your Perkins, Deutz or Ford Industrial Engine
- #167: Twin Disc, Rockford and AutoClutch Power Takeoffs and Pulleys
- #168: Deutz 1011 and 2011 Timing Belt Change Intervals; All You Need to Know About Deutz Timing Belt Change Intervals
- #169: All You Need to Know About Deutz and Wisconsin Blowers
- #170: All You Need to Know to Install a Deutz, Perkins or Deere Crankshaft
- #171: Deutz Head Gaskets: Composite or MLS?
- #172: A Five Point Checklist on Deutz Head Bolts and Torque Values
- #153 Hurth HBW50/100/125/150 Transmissions: Two Common Problems Easily Avoided
- #155: Chrysler LH318 & LH360 Industrial Engines: Easy Block Repair
- #141 Deutz Diesel Engine Model 1013 Fuel Transfer Pumps
- #142 Ford 330 Industrial Engines: Identifying the Dorset and the Dagenham Models
- #143 How NOT To Seat the Piston Rings on Your New Ford 300 Industrial Engine; Cleaning Components When Swapping Accessories
- #144 Deutz 1011 and 2011 Timing Belt Tension
- #145 Installing an Electronic Governor: Five Easy Tips
- #146 Yanmar Engine Tag Locations
- #147: Running a Twin Disc/Rockford PTO? Want It To Last Longer?
- #148: Ford Industrial In-Line 6 Cylinder Gas Engines: How to Tell Them Apart
- #154: AutoClutch Power Takeoff Clutches
- #156: Deutz 1011 & Deutz 1011F Diesel Piston to Wall Clearance
- #158: Power Takeoff Clutch Maintenance: How to Remove a Troublesome Pilot Bearing (Part 3)
- #159: Deutz 912 Engines: New Generation 912 vs. Old Generation 912 Engines Made Easy
- #160: Deutz Diesel Electronic Shutoff Solenoid Selection
- #161: Handy Numbers for Perkins Diesel Owners or Rebuilders
- All Tech Tips
- Ask Dr. Diesel™
- Industry Links
- Guides, Forms & Tags
- Company Info
- Contact Us
Bleeding Perkins, Deutz, and Deere Fuel Systems (Part 2)
Helpful tip on how to bleed your fuel system - Tech Tip #82
This Tech Tip is a follow up to Tech Tip #58, Bleeding Lucas, Stanadyne, and Diesel Kiki Fuel Systems and is one of our continuing series of Tech Tips. We suggest that you first read Tech Tip #29, Frozen Distributor? and then for really difficult situations, use some of the techniques discussed below. As with Tech Tip #58 what follows focuses on Perkins, Deutz, John Deere, and Cummins fuel systems but will have use in bleeding most any high-pressure diesel fuel injection system.
- Don't Kill the Starter Motor. The usual Lucas, Iskra or Delco starter motor as used on a Perkins or Duetz diesel is designed to run for only 30 seconds at a time. While 30 seconds of cranking may seem too short, it is quite a long time when actually doing it. Then rest it for two minutes to avoid overheating. It would be a shame to ruin a starter motor over a temporarily air-locked fuel system.
- Don't Kill the Battery. Like starter motors, starting batteries can be quickly discharged. Maybe even beyond recovery. Don't ruin the battery as you bleed the system. If your battery is weak and you are charging the battery as you bleed the fuel system, do it carefully. Avoid a battery explosion by "jumping" the battery correctly. The price of gel cells batteries is going down but they are still expensive. We use Optima gel cell deep cycle batteries in all of our field service trucks because they resist vibration and can be recharged up to 150 times after total discharge. Given the total life cycle cost of a battery, our people think that gel cells are a no-brainer. Accordingly, we have them in stock and ready to ship to customers.
- Outboard Primer Ball. For really severe cases where you have fuel up to but not through the injection pump, you can use an the primer ball from an outboard engine. Put the suction end on a fuel outlet of the injection pump and use the primer ball to suck fuel through out of the pump while turning over the engine.
- Outboard Primer Balls, Part Two. Another use of an outboard engine's primer ball (you didn't think that Uncle Olaf's primer ball from his old Johnson 140 should be thrown away, did you?) is to use it to remove water from your water separator. Simply hook up the suction line to the barb on the bottom of the water separator and squeeze the ball. The benefit of doing it this way is that you don't have to remove the top cover of the water separator and let air into your system. Remember, keeping fuel in and water and air out is the name of the game.
- Power Bleeding. Again, for severe cases, crack one line and then turn over the engine getting it to run. Let run for about 20 seconds with a line open at the injector. When this line squirts a steady stream of fuel, close the line. Caution: be careful where the diesel fuel lands and avoid starting a fire on a hot engine block. Yes, the engine will sound like the hammers of hell while doing this but this gets the job done.
- Close the Cooling System. For marine applications, close the sea cock to prevent water from getting into the water cooled exhaust. This will prevent water from entering into the engine via the exhaust manifold and causing hydrolock. Don't worry about running the engine without water. You'll be cranking it over at low speeds and will have time to open up the sea cocks once the system is bled and the engine running.
- Cautions. We recommend that you have a fire extinguisher handy, never, ever hold a fuel injector aimed at your skin (with pressures exceeding 2000 pounds per square inch you could easily pierce your skin and get diesel fuel into a vein), remove your nice new Vineyard Vines tie before you work on the engine, and don't leave greasy rags in the engine compartment.
If you are still having problems, call our Service Department and they can walk you through this process and get a Workshop Manual right out to you. If you are in a hurry we can Next Day Air you remanufactured exchange Perkins, Deere, Deutz and Cummins, fuel injection pumps and injectors. If you would like, we can always pick up your pump and injectors with a UPS Call Tag to service them. Foley is different: we're a 96-year-old, three-generation family firm that wants to help!
We take tech support seriously!
We hope that you will find this Tech Tip helpful. We believe that Tech Support matters and welcome your comments or suggestions.
Please email Dr. Diesel™ using our contact form or call us at 800.233.6539.