& OPERATION INSTRUCTIONS
Disclaimer
The above has been produced from fitting instructions supplied with an ACCUSUMP unit which were OCR’ed and produced in HTML. There may be spelling and grammar mistakes that could alter the meaning of sentences.
The production of the above does not have approval of the Manufacturer or its Agents and is for INFORMATION ONLY. Any queries should be made direct to the Manufacturer or Agents.
ACCUSUMP oil accumulators are covered under one or more of the following patents:
#4,094,293 #4,513,704 #4,513,705 #5,014,820.
These instructions cover the following CM Accusump oil accumulators:
#24-000 CM 3 quart 4-1/4" D by 16" long Accusump with manual valve.
#24-004 CM 3 quart 4-1/4" D by 16" long Accusump with electric valve.
#24-020 CM 2 quart 4-1/4" D by 12" long tube with manual valve.
#24-024 CM 2 quart 4-1/4" D by 12" long tube with electric valve.
#24-040 CM 1 quart 3-1/4" D by 12" long tube with manual valve.
#24-0~ CM 1 quart 3-1/4" D by 12" long tube with electric valve.
I. GENERAL
B. MOUNTING. The Accusump tube may be mounted wherever convenient.
1. When Manual Valve Units are used in production-style race cars, the unit is often mounted in the "Passenger" side with the valve within reach of the driver when he is belted in. The oil valve does not have to be attached directly to the Accusump tube. In this way, when it is not possible to mount the tube within reach of the driver, the valve may be mounted where the driver can reach it and the Accusump mounted elsewhere with hydraulic hose connecting the valve and Accusump tube.
2. An Electric Valve (#24-270) is also available which will convert manual units to Electric Valve Units.
The Electric Valve allows the unit to be mounted anywhere and be controlled automatically through the ignition switch.
3. The Accusump will work with the tube in any position or orientation; however, if possible, mount the tube with the oil end (the end with the oil valve) slightly higher than the air end. This will prevent accumulation of air bubbles (coming from foam in the oil) by purging any minor air pocket during pre-lube, when it will not cause any harm.
4. Our mounting brackets are recommended for all units (order CM #24-200 or #24-240). The bands of the mounting brackets should be installed at the ends of the tube. Placement of the mounting clamps/brackets near the center of the tube could pinch the tube, causing piston hang up. Mount the tube in a way that it does not become twisted, pinched, or in any way distorted as this will cause erratic operation and/or internal leakage. Be careful that the tube is not exposed to high heat (exhaust pipes), damage from stones or other cars, or used as a step.
Attach the mounting brackets to the vehicle using 5/16" bolts of grade 5 or better Use double plate if the brackets are mounted directly to sheet metal. Tighten the "T" bolts on the mounting bracket bands to between 6 and 7 foot-pounds torque.
5. Hoses used in the installation of the Accusump should be AN-6 (0.34 inch inside diameter) for 1 -quart units and AN-i 0 (0.56 inch inside diameter) for 2 & 3 quart units or larger depending on application.
6. The air gauge and/or air valve may be remotely mounted; however, all lines, fittings and connections MUST be 100% leak tight! Teflon tape should be used on all threads. The Accusump will not function properly if there is any air leakage. Check for air leaks using soap bubbles and a 48-hour air drop test as described in the maintenance section; leak testing the end plugs.
C. PRESSURE RELIEF VALVE. All our units come with a patented pressure relief valve to protect the unit.
In cases where the unit is set up incorrectly and/or there is a leak in the air side of a unit, it could become hydraulically locked (totally full of oil). Under this condition, if the unit is heated the safety valve will open, releasing the excess pressure. If this does occur you should be aware that there are problems.
CAUTION !!!!
The Accusump tube's inside diameter has a very smooth finish. Should this finish become damaged by foreign material (from engine failure or contaminated oil), the piston seals will wear rapidly, leading to malfunctioning of the Accusump. Use of an oil filter without a bypass is encouraged. Our recommended choice would be a CM High flow non-by-passing filter. Should the bore of the Accusump tube become scored, the entire Accusump unit will become unrepairable.
II. INSTALLATION METHODS FOR DIFFERENT TYPES OF OILING SYSTEMS
A. SYSTEMS WITH EXTERNAL OIL LINES
1. Many applications have either an external oil cooler, a remote oil filter or an external oil pump. In these systems the oil is routed outside the engine through hydraulic hoses. Figure 1 shows the routing of an external oil system with a remote filter and an oil cooler. On all of these systems we recommend that the Accusump be connected on the oil return side of the system, after the oil has gone through the oil filter and/or the oil cooler
Figure 1 shows a tee filling adapter being used to connect the Accusump into an external oil line (see N CM Kit #24-1 90). The inline check valve (see CM #24-280) is used to insure that oil only can flow in one direction. While this is helpful, it is not absolutely necessary as in most cases the oil will not back feed through the oil pump.
Many remote filter mounts that use spin-on cartridges have an extra port into which the Accusump can be directly connected. CM offers remote filter mounts for spin-on filters, CM remote filters and the block adapters which are required to install a remote filter system.
FIG I - ACCUSUMP IN EXTERNAL OIL SYSTEM
B. ENGINE WITH SPIN-ON FILTER
1. One of the simplest methods of connecting an Accusump to an engine with a spin-on filter is with a sandwich adapter.
These adapters fit between the oil filter and the engine block lowering the filter and providing an input port for the Accusump. In these applications, the anti-drain back valve in the spin-on filter acts as a check valve to insure the oil can't travel back through the filter See Figure 2.
FIG 2 ACCUSUMP INSTALLATION WITH SANDWICH ADAPTER
C. ENGINE WITH CM SPIN-ON FILTER
1. When a CM Spin-On Filter is used on the engine, our Heavy Duty Cap (#26-922) is available with 1/2" NPT thread in the end. This port is an ideal spot for an Accusump input. See Figure 3.
FIG. 3 - ACCUSUMP PORTED INTO CM FILTER
D. CONNECTING DIRECTLY INTO ENGINE OIL PASSAGES
1. Many engines come standard with a threaded port into the oil gallery. Assistance from an engine builder familiar with the engine block can be very helpful in determining the best location to tap into the block. The preferred port size is 1/2" NPT, however, 3/8" NPT is acceptable. See Figure 4.
III. ASSEMBLY AND WIRING
A. Once the method of installation and the mounting location are determined, the required adaptors, fittings and lengths of hose can be purchased. Parts available from CM are listed on the following pages. Assembly of the control valve and the pressure relief valve onto the unit may be required. Teflon tape should be used on all these NPT threads. The electric control valve should be installed with the "in" port of the valve connected to the Accusump and the "out" port connected to the hose leading to the engine.
FIG 5 GENERAL VIEW
B. WIRING OF ELECTRIC VALVE UNITS
1. Install the toggle switch in a convenient location. The toggle switch is used to disable the unit in a situation where the ignition is left on without the engine being started. When the toggle switch is in the "on" position, the electric valve will be open whenever the ignition is on.
2. Locate an accessory terminal in your fuse panel which is energized when the ignition is on. On applications without a fuse panel, an accessory terminal on the ignition switch can be used. This terminal should only be energized when the switch is on. If the lead is not fused, a 4 amp fuse should be installed.
3. Run a 16-gauge, multi-strand wire from the ignition lead to one side of the toggle switch. From the other side of the toggle switch, run a wire to one side of the electric solenoid. Run another wire from the remaining terminal on the solenoid to the ground, as shown here.
FIG 6 ELECTRICAL WIREING
IV. OPERATION
A. INITIAL CHARGING
1. Open the oil valve.
a. The manual valve is open when the lever or handle is in line with the cylinder.
b. On electric units, the valve is open when it is energized.
2. Pressurize the air end of the Accusump to about 50 psi as read on the air pressure gauge, then bleed the pressure to 7 psi, pre-charged. A pre-charge of 7 psi minimum is put in the air end of the Accusump so that the unit can become fully discharged of oil when the valve is open.
3. The Accusump is now ready for operation.
a. With manual valve units, start the engine with the valve in the "off" position. When full oil pressure is reached, "crack open" the valve and allow the Accusump to slowly fill with oil. As the unit fills, the air pressure will increase until it is the same as the oil pressure.
b. With the electric units, the valve can be left closed and the unit will fill automatically as the special valve allows flow in one direction when closed.
4. The Accusump will take approximately 1 to 3 quarts of oil* from the oil in the pan, depending on which unit applies. To achieve the original level, add 1 to 3 quarts of oil (or to the "FULL" mark on the dipstick). To reduce the chance that the crank will ever come in contact with the oil, the oil level in the pan
may be lowered by adding only 1 or 2 extra quarts instead of 3 (this should place the oil level at about the "ADD" mark on the dipstick).
(* 1 quart of oil on 1-quart models).
(* 2 quarts of oil on 2-quart models).
(* 3 quarts of oil on 3-quart models).
B. NORMAL OPERATION OF THE ACCUSUMP
1. With manual valve units, immediately before starting the engine, crack open the oil valve on the Accusump. This will purge air from the oil gallery and pre-oil the engine before it is started.
2. With electric units wired into the ignition, this will happen automatically when the ignition is turned
on.
3. During operation of the engine, the Accusump will operate automatically to supply oil to the engine any time that the oil pump loses suction due to oil surges. Should there be a failure in the oiling system, the Accusump will supply from 15 to 60 seconds of oil (depending on engine size and speed) to protect
the engine.
4. The Accusump will hold whatever pressure your engine has at the time it is shut off. On manual valve units you will need to close the valve before shutting the engine off. On electric units, the valve will close automatically when the engine is shut off.
If the engine has low oil pressure at idle, you may want to hold the engine at a higher speed to develop more oil pressure for pre-oiling.
5. If the oil valve is left open when the engine is shut off, the Accusump may be refilled as described in Section IV.
V. MAINTENANCE
A. NORMAL CARE. There are Accusump units which have been in service for many years and have bores which look "like new." The key to long life of the Accusump is proper care and oil filtration.
1. The Accusump should be protected by a quality oil filter which does not have a bypass. The filter should be replaced and inspected at frequent intervals. The life of your Accusump, like the life of your engine, will depend on how clean your oil remains.
2. The Accusump tube has close tolerances of roundness; care must be taken that the tube is not distorted. The unit should be mounted so that it is not twisted or bent, however slightly. Do not use the Accusump as a step or allow anything to be dropped on it. The Accusump is a precision piece of equipment.
3. Keep the dust cap on the air valve to prevent the introduction of dirt into the air end of the unit.
B. ENGINE FAILURES. Should an engine failure occur or the oil become contaminated, the Accusump should be cleaned and tested. All lines and components of the oil system must be flushed and cleaned.
We recommend that if a unit needs to be cleaned, tested and/or rebuilt, it should be sent back to the factory. Improper disassembly can cause damage to the Accusump and be very dangerous.
C. IMPORTANT PRECAUTIONS. The following precautions must be taken for your Accusump to operate correctly. Failure to do so can result in damage to the unit.
1. Never allow your Accusump to become hydraulically locked, that is, having the unit totaly filled with oil with the valve closed. There should always be a cushion of air in the Accusump when the valve is closed.
2. There should be a 7-15 psi. pre-charge of air when the unit is totaly empty of oil.
3. When in operation, the reading on the air gauge of the unit should increase as the oil pressure of the engine increases.
4. Routinely check the pre-charge pressure with the unit totally empty of the oil to make sure air has not leaked out of the unit. This is extremely important when a remote air gauge is used.
5. Never bleed air from the unit while in operation or when full of oil as this will defeat the purpose of the pre-charge and make the unit ineffective.
6. These units should not be mounted in a place where they can become excessively hot, especially not in a place where they will absorb heat after the engine is shut off and the Accusump control valve is closed.
7. Improper disassembly can cause damage to the Accusump and can be very dangerous.
D. TESTING THE ACCUSUMP. The following procedure can be used to test your Accusump for faulty seals. If this test shows positive for leaks, the unit can be sent back to the factory for further testing and rebuilding. Improper disassembly can cause damage to the Accusump and also can be very dangerous.
1. LEAK TESTING THE CYLINDER
a. Position the piston toward the air end of the Accusump by removing the air valve core and by pushing the piston with a 3/8" or 7/16" dowel through the manual valve, bleeding all the air from the unit.
b. Shut the manual valve and replace the core in the air valve.
c. Pressurize the Accusump through the air valve to 40 to 50 psi (piston movement will cause the oil end of the unit to be pressurized to the same pressure as the air end).
d. Check for leakage around the fittings and joints by spraying or brushing a solution of soap and water on the joints. A leak will be indicated by the solution forming bubbles or a foaming in the area of the leak. A major leak will blow the solution away.
e. Very slow leaks will be found by allowing the unit to sit for 24 to 48 hours in an area where the temperature will not vary; the pressure should not drop unless there is a leak.
2. LEAK TESTING THE PISTON
a. Open the manual valve and pressurize the Accusump to 40 to 60 psi. Then put the unit where it will not be disturbed or subjected to temperature changes for a minimum of 24 hours.
b. Check the pressure occasionally during the period of the test. Any drop in pressure is an indication of a leak.
c. Leakage indicates that there is a need for seal replacement or a rebuild.
VI. ACCESSORIES AND REPAIR PARTS
The following accessories are available. They may be ordered through CM. For more information, refer to the CM catalog.
1. ELECTRIC VALVE KITS STOCK NO. 24-270
Used to convert manual Accusump to Electric Accusump units, allowing easy remote control of the units. Accusump valves are 12V DC, with 1/2" NPT.
2. CHECK VALVES STOCK NO.24-280
Can be used in systems with external oil lines; has 1/2" NPT threads.
3. INSTALLATION KITS STOCK NO.24-190, 24-194
Kit #24-190 contains three 1/2" pipe to AN adapters, a check valve, a AN "T", a AN coupling, and tie downs for installation of an Accusump into an external oil system.
Kit #24-194 use when connecting an Accusump directly into an engine block or into an oil input sandwich adapter with 1/2" or 3/8" NPT thread. Each kit contains 5 feet of -10 hose with two swivel -10 AN hose
ends, a -10 AN to 3/8" pipe and two -10 AN to 1/2" pipe fillings.
4. MOUNTING BRACKET SET STOCK NO.24-200 or STOCK NO.24-240
Our stainless steel mounting brackets for the Accusump Accumulator come with a quick release "T" Bolt latched band. We highly recommend these clamps as they support the tube without distortion. Order #24-240 for 1 quart units. Order #24-200 for 2 or 3 quart units.
5. OIL INPUT SANDWICH ADAPTORS
These go between the oil filter and the engine block, providing an easy and effective way to connect an Accusump.
#22-550. SM. BL. Chevy Billet Aluminum Oil Input Sandwich Adapter Designed with two 1/2" NPT thread oil input ports, one before and one after oil filtration. Lowers the oil filter 1-1/2" and comes with mounting hardware and 0-rings.
#22-560. Big BL. Chevy Billet Aluminum Oil Input Sandwich Adapter Designed with two 1/2" N PT thread oil input ports, one before and one after oil filtration. Lowers the oil filter 1-1/2" and comes with mounting hardware and 0-rings.
#22-920. Oil Input Sandwich Adapter for application with 3/4"-1 6 filter mounting thread and a 2-1/2" o-ring pad. These adapters have a 3/8" NPT thread oil input port and lower the filter 1". Fits Fords, Mercury, Lincoln, Plymouth, Dodge, Chrysler and most imports.
#22-930. Oil Input Sandwich Adapter for application with a 13/16" -16 filter mounting thread and a 2 1/2" or 3-1/8" o-ring pad. These adapters have a 3/8" NPT thread Oil Input port and lower the filter 1". Fits Big Block Chevy.
#22-940. Oil Input Sandwich Adapter for application with a 13/16" -16 filter mounting thread and a 2
1/2" or 3-1/8" o-ring pad. These adapters have 3/8" NPT thread Oil Input port and lower the filter 1". Fits SM. BL. Chevy, AMC, Buick, Cadillac, Olds & Pontiac V-8's.
#22-950. Oil Input Sandwich Adapter for application with a 18mm x 1.5 filter mounting thread and a 2 1/2" 0-ring pad. These adapters have a 3/8" NPT thread Oil Input port and lower the filter 1". Fits Buick/GM V-6's & Chevy V-6's.
#22-980. Oil Input Sandwich Adapter for application with a 20mm x 1.5 filter mounting thread and a 2 1/2" or 3-1/8" o-ring pad. These adapters have a 3/8" NPT thread and Oil Input port and lower the filter 1".
Fits Hondas, Mazdas, Isuzus, Mitsubishis and Opels.
6. REMOTE FILTER ADAPTOR/MOUNT
#22-580. SM. BL. Chevy Remote Filter Block Adapter Machined from billet aluminum, not a casting. Inlet and outlet are 1/2" N.PT comes with all hardware and 0-rings gaskets.
#22-820. Cast remote filter adapter for applications with 3/4-16 filter mounting thread and a 5/8" 0-ring pad. Fits Fords, Mercury, Lincoln, Plymouth, Dodge, Chrysler and most imports.
#22-830. Cast remote filter adapter for applications with 13/16-16 filter mounting thread and 2-5/8" 0-ring pad. Fits A.M.C. Buick, Cadillac, Olds, Pontiac and some Chevy 307, and V-8's.
#22-840. Cast remote filter adapter for application with 13/16-16 filter mounting thread and 3-1/4" 0-ring pad. Fits Chevy V-8's (except 307s) and inline 6's.
#22-850. Cast remote filter adapter for applications with 18mm-i .5 thread and 2-5/8" 0-ring pad. Fits Buick, GM V-6's and, 60 and 90 degree V-6 Chevys.
#22-880. Cast remote filter adapter for applications with 20mm-i .5 filter mounting thread 2-5/8" 0-ring pad. Fits Hondas, Mazdas, Isuzus, Mitsubishi and Opels.
#22-882. Cast remote filter adapter for applications with 20mm-i .5 filter mounting thread and 3-1/4" o-ring pad. Fits some Hondas and others.
7. REMOTE FILTER MOUNTS
#22-600 Accepts Chevy Type Spin-on filters. L.H. Inlet, R.H. Outlet.
#22-605 Accepts Chevy Type Spin-on filters. R.H. Inlet, L.H. Outlet.
#22-610 Accepts Ford Type Spin-on filters. L.H. Inlet, R.H. Outlet.
#22-615 Accepts Ford Type Spin-on filters. R.H. Inlet, L.H. Outlet.
CANTON RACING PRODUCTS
2 Commerce Drive
North Branford, CT 06471
203-484-4900 FAX: 203-484-4584
The above has been produced from fitting instructions supplied with an ACCUSUMP unit which were OCR’ed and produced in HTML. There may be spelling and grammar mistakes that could alter the meaning of sentences.
The production of the above does not have approval of the Manufacturer or its Agents and is for INFORMATION ONLY. Any queries should be made direct to the Manufacturer or Agents.