INSTALLING THE GULF COAST BY-PASS OIL FILTER

GENERAL INFORMATION

The following installation instructions and general information is intended for the use of trained personnel, professional mechanics, or other people thoroughly familiar with large engines. The GCF oil filter is a by-pass oil filter. It requires a suitable mounting location, a pressure source and a return for the oil to the engine.

NOTE: DO NOT install a GCF by-pass oil filter on an engine with exceptionally low oil pressure.

The GCF by-pass oil filter has its own restrictor built in. This restrictor limits the amount of oil going through the GCF by-pass oil filter (About 2 quarts per minute). This small amount of oil will not appreciably affect the oil pressure or lubrication of a normally operating engine. If you notice a significant drop in oil pressure (10 PSI or more), disconnect the GCF by-pass oil filter and call GCF for consultation on the issue.

For questions during installation, call 1-800-398-8114

MOUNTING

The GCF by-pass oil filter can be mounted in any position, vertical, horizontal or any other angle. Locate a suitable place on the equipment to mount the GCF by-pass oil filter with ease of service in mind. Install filter housing using 3/8” grade 8 bolts and lock nuts. Two bolts are needed on each side of GCF by-pass oil filter housing.

• • If the GCF by-pass oil filter housing is mounted above the height of the engine such as on an exhaust bracket, check the oil level as soon as engine is shut down since it will drain down over time and read higher on the dipstick.
  • If the filter housing is installed below the oil level in the engine oil pan, install a valve at the return point on the oil pan. It will be necessary to close this valve when servicing the GCF by-pass oil filter to prevent oil from flowing out of the GCF by-pass oil filter housing during element servicing.
  • When the GCF by-pass oil filter is installed on a truck frame, the height of the filter must not be higher than the travel of the fifth wheel, nor lower than the cross members underneath the truck.
  •  Locate a suitable place on the equipment to mount the filter, keeping ease of service in mind.  The GCF filter can be mounted in any position, vertical, horizontal or any angle.
  •  If possible, install the filter housing no higher than the height of the engine to prevent oil drain back which could result in a false reading on the dipstick.

• A valve at the return point is necessary if the filter housing is installed below the oil level. This valve should be closed when servicing.

•  Identify an oil pressure supply source on the engine.

•  Identify a point on the engine where oil will return to the oil pan.

PRESSURE SOURCES

• Oil gallery: There are usually several pipe plugs located along the oil gallery which can be used as a source for oil pressure.

• Accessories such as coolers, air compressors, etc. can be used as sources for oil pressure. Use a tee to obtain pressure at the point that the accessory is supplied with oil from the engine.

• Pipe plugs located on factory full flow filter housing can be used as sources for oil pressure.
• Sending units can be used as sources for oil pressure.  (use a tee)

RETURN SOURCES

• Crankcase: Spare drain plugs on oil pans, spare dipstick openings with pipe plugs, spare return plugs on the sides of the block, timing covers, inspection plates, etc. can be used as sources for returning oil from your Gulf Coast .

• Oil filler tubes, if made of stamped steel, can be used as sources for oil pressure.  (If it is made of cast aluminum or iron, drill and tap 1/8” npt.)

• NOTE: It is not recommended that valve covers be used for a return.  Leaks  may occur from the valve cover gaskets due to excessive oil.
• Also, excessive oil directed on a valve guide could cause that one cylinder to use oil.

OIL SAMPLE PORT

• Place a Tee in the hose going to the Inlet of the GCF by-pass oil filter.

• Insert a sample valve into Tee.

• Pull the oil sample before the filter is changed and before makeup oil is added.

• Sample should be pulled when the engine is running and at operating temperature.

INITIAL START-UP

GCF Model O-1 and O-2 By-Pass Oil Filters:

After completing the installation of the GCF By-Pass Oil Filters follow the procedures listed below.

• Ensure the draincock located on the bottom of the GCF by-pass oil filter is closed.

• Ensure the lid is securely tightened.

• Ensure the oil supply shut-off valve is CLOSED.

• Start the engine and run for 3 minutes. (Immediately check for oil leaks)

• Open oil supply shut-off valve. (This will start flow to the GCF by-pass oil filter).

• Immediately check the filter and connections for obvious leaks. Allow the engine to reach operating temperature while. continuing to look for leaks. After the engine has run for approximately 15 minutes at operating temperature and no leaks have been detected, stop the engine and proceed..

• Stop Engine. Retighten Lid.
• Check the oil level and add oil as needed to bring it to the proper level.