COMMON FILTER PROBLEMS <ul><li>BASIC ENGINE LUBE SYSTEM </li></ul><ul><ul><li>How The System Works </li></ul></ul><ul><li>...
COMMON FILTER PROBLEMS <ul><li>COLLAPSED CENTER TUBE </li></ul><ul><li>MISAPPLICATION </li></ul><ul><ul><li>Visually Match...
FULL-FLOW LUBE  SYSTEM COMPONENTS <ul><li>OIL PAN RESERVOIR </li></ul><ul><li>OIL PICK-UP SCREEN </li></ul><ul><li>OIL PUM...
FULL-FLOW LUBE  FILTER SYSTEM FILTER BY-PASS  VALVE OIL PUMP PRESSURE RELIEF  VALVE OIL PRESSURE  GUAGE CLICK ON THE FILTE...
<ul><li>From time to time, filters are returned because the filter is bloated (swollen) or the gasket was found pushed out...
OVER PRESSURIZED  LUBE SYSTEM (STATIC BURST TEST) WATCH THE FLUTES AS  THE PRESSURE INCREASES CLICK ON THE FILTER RETURN T...
DOUBLESEAM FAILURE ANOTHER OVER PRESSURIZATION PROBLEM  CLICK ON THE FILTER RETURN TO TOPICS Click For FMC-TSB on this sub...
DENTED FILTERS  & THEIR EFFECTS <ul><li>Filter manufacturers often receive used filters, being returned due to a crack in ...
DENTED FILTERS  & THEIR EFFECTS Click For FMC-TSB on this subject  RETURN TO TOPICS CLICK ON THE FILTER WATCH THE DENT
Collapsed Center Tube  High differential pressure DIFFERENTIAL PRESSURE  IS THE RESTRICTION READING ACROSS THE  MEDIA.  A ...
MISAPPLICATIONS <ul><li>WRONG THREAD SIZE </li></ul><ul><ul><li>SOME THREAD SIZES ARE SO CLOSE IN PITCH AND DIAMETER THAT ...
OIL PUMP PRIME OIL LIGHT STAYS ON OR NO PRESSURE  AFTER 30 SECONDS PARTICULARLY  AFTER OIL & FILTER SERVICE <ul><li>TURN O...
LOW OIL PRESSURE PROBLEMS <ul><ul><li>PRESSURE SWITCH COULD BE FAULTY </li></ul></ul><ul><ul><li>FAULTY WIRING BETWEEN THE...
BLOATED CARTRIDGE FILTER REVERSED FLOW (INSIDE OUT FLOW) RETURN TO TOPICS Click For FMC-TSB on this subject
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Diagnosing fuel filters

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Diagnosing fuel filters

  1. 1. COMMON FILTER PROBLEMS <ul><li>BASIC ENGINE LUBE SYSTEM </li></ul><ul><ul><li>How The System Works </li></ul></ul><ul><li>OVER PRESSURIZED LUBE OIL FILTERS/SYSTEMS </li></ul><ul><ul><li>Bloated Filter Can and/or Displaced Gasket </li></ul></ul><ul><li>RUPTURED DOUBLESEAM </li></ul><ul><li>DENTED FILTERS & THEIR EFFECTS </li></ul><ul><ul><li>A Dent In The Filter Can Make It Susceptible To Fatigue Failure. </li></ul></ul>MORE
  2. 2. COMMON FILTER PROBLEMS <ul><li>COLLAPSED CENTER TUBE </li></ul><ul><li>MISAPPLICATION </li></ul><ul><ul><li>Visually Matching Filters Can Cause Engine Damage </li></ul></ul><ul><li>OIL PUMP PRIME </li></ul><ul><ul><li>NO OIL PRESSURE AFTER OIL/FILTER CHANGE </li></ul></ul><ul><li>LOW OIL PRESSURE </li></ul><ul><li>BLOATED CARTRIDGE FILTERS </li></ul><ul><ul><li>Outer Body Coming Apart At The Seam </li></ul></ul>BACK
  3. 3. FULL-FLOW LUBE SYSTEM COMPONENTS <ul><li>OIL PAN RESERVOIR </li></ul><ul><li>OIL PICK-UP SCREEN </li></ul><ul><li>OIL PUMP </li></ul><ul><li>PRESSURE REGULATING VALVE </li></ul><ul><ul><li>This Valve Is Usually In Or Next To The Oil Pump </li></ul></ul><ul><li>OIL FILTER </li></ul><ul><li>FILTER BY-PASS VALVE </li></ul><ul><ul><li>The By-Pass Valve Is Designed To Allow The Oil To By-Pass The Filter In The Event The Filter Becomes Plugged </li></ul></ul><ul><ul><li>The By-Pass Valve Location And Settings Are Determined By The “OE” Manufacturer </li></ul></ul>NEXT
  4. 4. FULL-FLOW LUBE FILTER SYSTEM FILTER BY-PASS VALVE OIL PUMP PRESSURE RELIEF VALVE OIL PRESSURE GUAGE CLICK ON THE FILTER RETURN TO TOPICS
  5. 5. <ul><li>From time to time, filters are returned because the filter is bloated (swollen) or the gasket was found pushed out of the retaining groove. The tendency is to think this is a filter problem. </li></ul><ul><li>This problem is caused by an over pressurized lube system. </li></ul><ul><li>The lube system pressure is controlled by a pressure regulating valve. Occasionally, the regulating valve could stick in the closed position causing a pressure spike. </li></ul><ul><li>The result is the filter appears to be swollen and possibly the gasket was pushed out of its groove. </li></ul><ul><li>TO SEE A DISPLACED GASKET DEMONSTRATION - CLICK HERE </li></ul>OVER PRESSURIZED LUBE/FILTER SYSTEM
  6. 6. OVER PRESSURIZED LUBE SYSTEM (STATIC BURST TEST) WATCH THE FLUTES AS THE PRESSURE INCREASES CLICK ON THE FILTER RETURN TO TOPICS Click For FMC-TSB on this subject
  7. 7. DOUBLESEAM FAILURE ANOTHER OVER PRESSURIZATION PROBLEM CLICK ON THE FILTER RETURN TO TOPICS Click For FMC-TSB on this subject IT TAKES 300+ PSI AND THE FILTER MUST BE SEVERELY OVERTIGHTENED TO RUPTURE THIS SEAM WATCH THE FLUTES AS THE PRESSURE INCREASES
  8. 8. DENTED FILTERS & THEIR EFFECTS <ul><li>Filter manufacturers often receive used filters, being returned due to a crack in a filter can. </li></ul><ul><li>In many cases the crack is located within or near a dent in the can. </li></ul><ul><li>Once dented, the can becomes more susceptible to fatigue. </li></ul><ul><li>The fatigue to the material results from pressure pulses within the system. </li></ul><ul><li>The metal in the dented area is continually flexing in and out in response to the system pressure pulses. </li></ul><ul><li>Over a period of time the metal will fatigue to the point of cracking, which will result in a leak. </li></ul>TO SEE A DEMONSTRATION - CLICK HERE RETURN TO TOPICS
  9. 9. DENTED FILTERS & THEIR EFFECTS Click For FMC-TSB on this subject RETURN TO TOPICS CLICK ON THE FILTER WATCH THE DENT
  10. 10. Collapsed Center Tube High differential pressure DIFFERENTIAL PRESSURE IS THE RESTRICTION READING ACROSS THE MEDIA. A MINIMUM OF 100+ POUNDS OF DIFFERENTIAL PRESSURE (PSID) IS REQUIRED TO CRUSH A CENTER TUBE. Click For FMC-TSB on this subject RETURN TO TOPICS
  11. 11. MISAPPLICATIONS <ul><li>WRONG THREAD SIZE </li></ul><ul><ul><li>SOME THREAD SIZES ARE SO CLOSE IN PITCH AND DIAMETER THAT THEY WILL SPIN ON A MOUNTING BASE, BUT WIIL LATER LOOSEN, CAUSING THE FILTER TO BACK OFF AND POSSIBLY FALL OFF THEMOUNTING BASE </li></ul></ul><ul><li>WRONG BY-PASS VALVE SETTINGS </li></ul><ul><ul><li>THE BY-PASS VALVE SETTINGS ARE DETERMINED BY “OE” AND SHOULD BE FOLLOWED </li></ul></ul><ul><li>ANTI-DRAIN BACK VALVES (WHEN REQUIRED) </li></ul><ul><ul><li>USING A FILTER WITHOUT AN ANTI DRAIN-BACK VALVE COULD CAUSE DRY STARTS </li></ul></ul>RETURN TO TOPICS
  12. 12. OIL PUMP PRIME OIL LIGHT STAYS ON OR NO PRESSURE AFTER 30 SECONDS PARTICULARLY AFTER OIL & FILTER SERVICE <ul><li>TURN OFF ENGINE </li></ul><ul><li>DISABLE IGNITION SYSTEM </li></ul><ul><li>LOOSEN OIL FILTER </li></ul><ul><li>TURN ENGINE OVER UNTIL OIL APPEARS </li></ul><ul><li>AFTER OIL APPEARS, RETIGHTEN FILTER PROPERLY </li></ul><ul><li>ENABLE IGNITION SYSTEM </li></ul><ul><li>FINALLY START ENGINE, OIL PRESSURE SHOULD BE NORMAL </li></ul>RETURN TO TOPICS Click For FMC-TSB on this subject
  13. 13. LOW OIL PRESSURE PROBLEMS <ul><ul><li>PRESSURE SWITCH COULD BE FAULTY </li></ul></ul><ul><ul><li>FAULTY WIRING BETWEEN THE PRESSURE SWITCH AND WARNING INDICATOR </li></ul></ul><ul><ul><li>OIL PUMP MAY HAVE LOST ITS PRIME </li></ul></ul><ul><ul><li>PUMP INTAKE SCREEN COULD BE CLOGGED </li></ul></ul><ul><ul><li>OIL PUMP PRESSURE RELIEF VALVE COULD BE STUCK IN THE OPEN POSITION </li></ul></ul>RETURN TO TOPICS Click For FMC-TSB on this subject
  14. 14. BLOATED CARTRIDGE FILTER REVERSED FLOW (INSIDE OUT FLOW) RETURN TO TOPICS Click For FMC-TSB on this subject

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