Mityvac MV5545E User Manual Download Page 7

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Description

Applications

Order No.

Reference

No.

M16 x 1.5 Adapter

GM Vortec

MVA520

M14 x 1.5 Adapter

GM Vortec

MVA521

⁄

" Flare Nut Adapter

Carbureted & early

fuel injected systems

MVA522

⁄

" Flare Nut Adapter

Carbureted & early

fuel injected systems

MVA523

⁄

" Spring Lock Adapter

Ford fuel injection systems

MVA524

⁄

" Spring Lock Adapter

Ford fuel injection systems

MVA525

⁄

" Quick-Change Adapter

GM, Chrysler, Jeep/Eagle

MVA526

10mm Quick-Change Adapter

Diesel

MVA534

Fuel System Test Adapters

Form 824262

Page Number - 7

Summary of Contents for MV5545E

Page 1: ...s and instructions for product use Need service parts To order replacement or service parts visit us online at www mityvacparts com or call toll free 1 800 992 9898 Europe Africa Heinrich Hertz Str 2...

Page 2: ...p and Installation 9 Determining Where to Install the FST 9 Inline Connection 9 Alternative Connection Locations 9 Installation 10 Testing and Diagnostics 12 Return Fuel Systems 12 Returnless Fuel Sys...

Page 3: ...with gasoline and most gasoline additives including alternative flex fuels that contain high levels of ethanol Always read carefully and understand instructions prior to us ing this equipment Wear sa...

Page 4: ...ose Clamps Qty 2 824147 Flowmeter Hose 9 5 mm ID x 1 2 m long 824173 Hose Plug Qty 2 824143 Gasoline Petrol Flowmeter Faceplates Liters Minute includes front and back plate 824183 Wing Style Hose Clam...

Page 5: ...824177 Male Quick Connect Fitting 3 824176 Bypass Port 4 824175 Flow Control Valve Knob 5 824174 Flowmeter Inlet Outlet Connector Qty 2 6 824146 Flow Control Valve 7 824145 Flowmeter Seal Kit 824181...

Page 6: ...icles with 3 8 rubber to steel hose connection 16C M8 x 1 0 Banjo Adapter Toyota MVA530 13B 13C M10 x 1 0 Banjo Adapter Toyota MVA531 14B 14C M12 x 1 25 Banjo Adapter Toyota Lexus Geo Honda Acura Hyun...

Page 7: ...systems MVA522 6A 6B 5 16 Flare Nut Adapter Carbureted early fuel injected systems MVA523 5A 5B 3 8 Spring Lock Adapter Ford fuel injection systems MVA524 7A 7B 1 2 Spring Lock Adapter Ford fuel injec...

Page 8: ...Fig 3 Fig 1 Fig 4 Fig 2 Page Number 8 Form 824262...

Page 9: ...onnect the tester directly after the in line fuel filter which may be located in the engine compartment under the frame or near the fuel tank In this case be sure to carefully inspect the fuel supply...

Page 10: ...Locate the fuel supply line to the engine s fuel rail and select the best location to disconnect the supply line and install the FST Fig 10 If uncertain of the proper connection point see the previou...

Page 11: ...ear pressure relief and bypass hoses into an approved fuel container Route the flowmeter inlet and outlet fuel hoses away from rotating engine components belts fans and hot exhaust components Remove t...

Page 12: ...Page Number 12 Form 824262 Fig 17 Fig 16 Fig 18 Read top of float...

Page 13: ...ssociated controls After connecting the FST it is normal to have air trapped in the fuel lines and flowmeter Cycling the ignition switch or cranking the engine briefly with the flow control valve in t...

Page 14: ...er The free flow output of a typical fuel pump is between 2 6 and 4 0 LPM Note Turning the valve to the full BYPASS position will prevent fuel from flowing to the engine If left in the BYPASS position...

Page 15: ...ill cause the pressure to increase in Zone 1 and the flow to decrease in Zone 2 If the results of testing in Zone 2 indicate a blocked fuel filter but are not entirely conclusive retest the fuel syste...

Page 16: ...ure Regulator High Pressure If Zone 2 testing indicates idle pressure is high and flow is low yet peak pressure and flow are normal this is a clear indication of too much restriction in Zone 3 Over re...

Page 17: ...to the fuel pump Testing the fuel system by activating the fuel pump using a scan tool will cause the fuel pump to severely under perform 3 If the vehicle utilizes a multiple speed fuel pump use a sca...

Page 18: ...rating fuel delivery system yet the vehicle continues to experience symptoms of a fuel delivery malfunction it could be caused by contaminated fuel faulty fuel injector s or an intermittent compo nent...

Page 19: ...early indicate a pump problem If the FST indicates a pump is under performing be sure to verify that the vehicle does not use a multiple speed pump see Fuel System Components Fuel Pumps To properly te...

Page 20: ...ction to the flow of fuel through the tester Watch the pressure gauge as the valve is rotated the pressure should increase Note the pressure when the valve is fully closed A good fuel pump should be c...

Page 21: ...airs re test the fuel delivery system with the FST to ensure it is operating normally If the FST test results are inconclusive as to whether there is a fuel delivery system mal function or if a malfun...

Page 22: ...rmal Many chemical impurities are not visible but can cause the engine to run poorly Pressure Leakdown Test To facilitate hot starts modern fuel delivery systems should maintain some pressure for seve...

Page 23: ...returnless fuel system use extreme caution when disconnecting the outlet hose connecting the FST to the fuel rail If the engine is hot releasing the pres sure from a returnless fuel system will cause...

Page 24: ...0 29 0 36 0 43 0 50 0 57 5 0 305 0 22 0 30 0 37 0 45 0 52 0 59 5 2 317 0 23 0 31 0 39 0 46 0 54 0 62 5 4 330 0 24 0 32 0 40 0 48 0 56 0 64 5 6 342 0 25 0 33 0 42 0 50 0 58 0 66 5 8 354 0 26 0 35 0 43...

Page 25: ...1 10 1 36 1 63 1 89 2 16 5 0 305 0 83 1 14 1 40 1 70 1 97 2 23 5 2 317 0 87 1 17 1 48 1 74 2 04 2 35 5 4 330 0 91 1 21 1 51 1 82 2 12 2 42 5 6 342 0 95 1 25 1 59 1 89 2 20 2 50 5 8 354 0 98 1 32 1 63...

Page 26: ...r than 2 5 LPM 7 GPM Normal 50 to 100 higher than spec Normal 2 5 to 4 0 LPM 7 to 1 0 GPM Faulty pressure regulator low pressure 4 High Low Less than maxi mum fuel volume requirement Normal 50 to 100...

Page 27: ...main normal replace the pressure regulator Scenario 4 Diagnosis High pressure and low flow at idle indicates too much restriction in the path of the fuel as it returns from the fuel rail to the fuel t...

Page 28: ...egulator low pressure 4 High Normal 2 5 to 4 0 LPM 7 to 1 0 GPM High Above manufacturer s specification Faulty pressure regulator high pressure 5 Low Low Less than 2 5 LPM 7 GPM Low Greater than 10 be...

Page 29: ...ect FST between fuel tank and inline filter and retest If peak flow is normal replace inline filter If flow is still low replace inlet strainer sock Scenario 3 Diagnosis Low idle and peak demand press...

Page 30: ...to 4 0 LPM 7 to 1 0 GPM Fuel system is operating normally 2 Normal Low Greater than 10 below idle pressure Normal 50 to 100 higher than spec Low Less than 2 5 LPM 7 GPM Blocked fuel filter inlet strai...

Page 31: ...en the engine will be starved of fuel in a heavy load condition such as wide open throttle Additional Action Inspect the fuel supply line for damage Connect FST between fuel tank and inline filter and...

Page 32: ...s provided by Lincoln or its authorized field personnel THIS WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING BUT NOT LIMITED TO THE WARRANTY OF MERCHANTABIL...

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