Toyota Cressida/Corona/Crown/MarkII 1970-1982 Repair Guide

Fuel Filter

Print

REMOVAL & INSTALLATION



There are two basic types of fuel filters used on Toyota vehicles. There is the cartridge type (disposable element), and the totally throwaway type.


CAUTION
Do not smoke or have an open flame near the vehicle when working on the fuel system.

1970-74 Models
CARTRIDGE TYPE


Click image to see an enlarged view

Fig. Fig. 1 Exploded view of the cartridge type fuel filter and mounting

The cartridge type filter is located in the fuel line. This service should be performed if the clear of the glass fills up with gasoline or at the maintenance intervals.

  1. Loosen and remove the nut on the filter bowl.
  2.  
  3. Withdraw the bowl, element spring, element and gasket.
  4.  
  5. Wash the parts in solvent and examine them for damage.
  6.  

To install:

  1. Install a new filter element and bowl gasket.
  2.  
  3. Install the components in the reverse order of there removal.
  4.  
  5. Seat the bowl by turning it slightly. Tighten the ball nut fully and check for leaks.
  6.  

THROWAWAY TYPE


Click image to see an enlarged view

Fig. Fig. 2 The first throwaway type fuel filter is metal and bolted on

  1. Place a shop rag around the filter hose and a small container to catch any spilt fuel.
  2.  
  3. Unfasten the fuel intake line. Use a wrench to loosen the attachment nut and another on the opposite side of the filter to keep the filter body from turning in its retaining bracket.
  4.  
  5. Remove the remaining fuel line from the fuel filter in the same manner as you did the first one. Place the container aside.
  6.  
  7. Unbolt the fuel filter and remove it.
  8.  

To install:

The arrow on the fuel filter should always point toward the carburetor.

  1. Install the filter onto the engine and tighten the mounting bolt.
  2.  
  3. Attach the fuel lines to the filter.
  4.  
  5. Run the engine for a few minutes and check the filter for any leaks.
  6.  

1975-82 Models
CARBURETED


Click image to see an enlarged view

Fig. Fig. 3 Another type of disposable fuel filter is plastic, usually retained in a support



Click image to see an enlarged view

Fig. Fig. 4 The fuel filter on the 1975-82 carburetor models is clamped onto the firewall-20R engine



Click image to see an enlarged view

Fig. Fig. 5 If necessary, place matchmarks on one of the fuel lines to avoid confusion



Click image to see an enlarged view

Fig. Fig. 6 Place a rag under the fuel lines and remove the hose clamps



Click image to see an enlarged view

Fig. Fig. 7 Remove the fuel filter and replace with a new one

Starting in 1974, Toyota passenger cars use a see-through type, disposable fuel filter. This filter should be replaced every 2 years or 25,000 miles on the 1975-77 models, 30,000 miles on 1978-82 models, or if the filter seems to be clogged or dirty.

  1. Place a shop rag around the filter hose and a small container to catch any spilled fuel.
  2.  
  3. Remove the hose clamps from the inlet and outlet hoses.
  4.  
  5. Work the hoses off of the filter necks. Be sure the fuel in the lines is caught in the container. Set the container aside.
  6.  
  7. Snap the filter out of its bracket and replace it with a new one.
  8.  

The arrow on the fuel filter must always point toward the carburetor.

To install:

  1. Snap the fuel filter into the retaining bracket.
  2.  
  3. Install the hoses on the filter and tighten the hose clamps.
  4.  
  5. Run the engine for a few minutes and check the filter for any leaks.
  6.  

FUEL INJECTED


Click image to see an enlarged view

Fig. Fig. 8 Place a pan under the delivery pipe to catch the dripping fuel-fuel injected engines shown



Click image to see an enlarged view

Fig. Fig. 9 Always use new gaskets when reconnecting the lines



Click image to see an enlarged view

Fig. Fig. 10 Hand-tighten the fuel lines first, then final tighten with a torque wrench

  1. Unbolt the retaining screws and remove the protective shield for the fuel filter.
  2.  
  3. Place a pan under the delivery pipe (large connection) to catch the dripping fuel and SLOWLY loosen the union bolt to bleed off the fuel pressure.
  4.  
  5. Remove the union bolt and drain the remaining fuel.
  6.  
  7. Disconnect and plug the inlet line.
  8.  
  9. Unbolt and remove the fuel filter.
  10.  

To install:

When tightening the fuel line bolts to the fuel filter, you must use a torque wrench. The tightening torque is very important, as under or over tightening may cause fuel leakage. Insure that there is not fuel line interference and that there is sufficient clearance between it and any other parts.

  1. Coat the flare unit, union nut and bolt threads with engine oil.
  2.  
  3. Hand-tighten the inlet line to the fuel filter.
  4.  
  5. Install the fuel filter and then tighten the inlet line both to 23-33 ft. lbs. (31-45 Nm).
  6.  
  7. Reconnect the delivery pipe using new gaskets and then tighten the union bolt to 18-25 ft. lbs. (24-34 Nm).
  8.  
  9. Run the engine for a few minutes and check for any fuel leaks.
  10.  
  11. Install the protective shield.
  12.  

 
label.common.footer.alt.autozoneLogo