Series 50 – Section 3.6 Oil Filter Adaptor

Section 3.6
Oil Filter Adaptor

The oil filter adaptor is located on the right side of the engine and is joined to the oil cooler.‪

A bypass valve in the filter adaptor opens at approximately 124-145 kPa (18-21 lb/in.² ) pressure differential, and will bypass the oil filters should the full flow filters become plugged.‪

Section 3.6.1
Repair or Replacement of Oil Filter Adaptor

To determine if repair is possible or replacement is necessary, perform the following procedure. See Figure "Flowchart for Repair or Replacement of Oil Filter Adaptor " .‪

Figure 1. Flowchart for Repair or Replacement of Oil Filter Adaptor

Section 3.6.2
Cleaning and Removal of Oil Filter Adaptor

Precleaning is not necessary.‪

Remove the oil filter adaptor as follows:‪

1. Remove the four bolts that connect the oil filter adaptor to the block.

   EYE INJURY ‪
   To avoid injury from flying parts when working with components under spring tension, wear adequate eye protection (face shield or safety goggles).‪

2. Remove the snap ring.
3. Withdraw the spring and bypass valve. See Figure "Oil Filter Adaptor, Bypass Valve and Related Parts" .
   

   1. Oil Filter, Full-Flow‪	5. O-ring, Adaptor-to-Block‪
   2. Insert, Full-Flow Filter-to-Adaptor‪	6. Spring, Bypass‪
   3. Pipe Plugs (5)‪	7. Valve, Bypass‪
   4. Oil Filter Adaptor‪	8. Snap Ring‪

   Figure 2. Oil Filter Adaptor, Bypass Valve and Related Parts

4. Remove the pipe plugs.

Section 3.6.2.1
Inspection of Oil Filter Adaptor

Inspect the oil filter adaptor as follows:‪

1. Clean all of the oil filter adaptor components in fuel oil.

   EYE INJURY ‪
   To avoid injury from flying debris when using compressed air, wear adequate eye protection (face shield or safety goggles) and do not exceed 276 kPa (40 psi) air pressure.‪

2. Dry the parts with compressed air.
3. Inspect the bypass valve for movement.
   1. Check to see if the bypass valve moves freely in the adaptor.
   2. If the bypass valve binds, replace it with a new part.
4. Inspect the components for wear or damage.
   1. Check to see if the valve or the filter adaptor bore are scored.
   2. If the valve and the filter adaptor bore parts cannot be cleaned up with a fine emery cloth, replace with new parts.
5. Inspect the spring for damage.
   1. Check for pitting or fractures.
   2. If spring is damaged, replace it with a new part.

Section 3.6.3
Assembly of Oil Filter Adaptor

Assemble the oil filter adaptor as follows:‪

EYE INJURY ‪
To avoid injury from flying debris when using compressed air, wear adequate eye protection (face shield or safety goggles) and do not exceed 276 kPa (40 psi) air pressure.‪

1. Install bypass spring and bypass valve into the oil filter adaptor.
2. Using tool J 23432 part of J 5586–A , install snap rings.
3. Install oil filter adaptor inserts, if removed.
4. Install the pipe plugs.
   1. Apply a sealant such as, Loctite 620, (or equivalent) to the threads of the bolts that will engage the adaptor.
   2. Wipe off any sealant remaining exposed on the threads.
   3. Torque all pipe plugs to 129-161 N·m (95-119 lb·ft).
5. Coat new O-rings with petroleum jelly.
6. Install the O-rings in the recesses in the oil filter adaptor.

Section 3.6.4
Installation of Oil Filter Adaptor

Install oil filter adaptor as follows:‪

FIRE ‪
To avoid injury from fire, contain and eliminate leaks of flammable fluids as they occur. Failure to eliminate leaks could result in fire.‪

NOTICE:
Failure to tighten oil filter adaptor mounting bolts to the required torque may lead to a loss of lubricating oil during engine operation. Inadequate lubrication can result in severe engine damage.‪

1. Install the oil filter adaptor to the cylinder block. Torque the mounting bolts to 58-73 N·m (43-54 lb·ft).
2. Install full-flow oil filters. Refer to "13.5.10 Lubricating Oil Filter" .
3. Refer to "11.1.2 Lubrication System" for verification of proper oil filter adaptor installation.