Continental L-Head Overhaul Manual - Igor Chudov

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The charging circuit consists primarily of a generator, regulator, battery and wiring. When analyzing the charging circuit, the components should be checked in the following order: I. Wiring Wiring in the charging circuit should be carefully inspected for frayed insulation or other damage, an.d replace any wiring that is defective. Also inspect all connections to the generator, re~:ulator and battery (including all ground connections), and clean and tighten as required. II. Battery The lead-acid .storage battery, used on automotive and industrial applications, is an electrochemical device for converting chemical energy into electrical energy. It has three major functions: 1. It provides a source of curren.t for starting tl~e engine. 2. It acts as a stabilizer to the voltage in the electrical system. 3. It car~, for a limited time, furnish current when the electrical demands of the unit exceed the output of the generator. There are ~wo types of batteries with which we are concerned: The DRY charged and the WET charged. The DRY charged is shipped from the factory with charged plates, and the electrolyte is added wlhen the battery is ready to be activated. The WET charged battery is shipped from the factory with the electrolyte already added. This type must be recharged periodically, while in storage, to keep it ready for service. Battery Testing Visual Test -- The battery should be ins, pected visually, checking the level of the electrolyte and the outside of the battery for damage and abuse. The 1. "In-Vehicle" Light Load Test Page 51B First, if the electrolyte level is low, ad~ just it to the proper level by adding water. Then place a load in the battery by holding the starter switch "ON" for three seconds, or until the engine starts. If the engine starts, turn off ignition immediately. This removes the surface charge. Then, turn the headlights on low-beam. The headlights must be turned on for one minute before starting the light load test and then left on during the test. If any cell reads 1.95 volts or more and the diff.erence between the highest and lowest is less than .05 volt, the battery is good. The "Out-of-Vehicle" Light Load Test This test is conducted in the same way as the "In-Vehicle" test. To check the electrical condition of battery cells : Place a 150 ampere load on battery for three seconds, using a high rate load tester, to remove surface charge. Then, place a ten ampere load on battery for one minute before starting the Light Load Test. The difference in voltage readings between the individual cells can be interpreted in the same way as indicared under the "In-Vehicle" Light Load Test. Specific Gravity Cell Comparison Test This test should be used only on batteries having one-piece cell covers. Measure the specific gravity of each cell, regardless of state of charge, and interpret results as follows : If the maximum difference between cell readings is les.s than .050 (50 points) and the lowest cell reading is 1.200 or above, the battery is good.
Page 51C Full Charge Hydrometer Test This test .is given to fully charged batteries. If cell readings range between 1.230 and 1.310 specific gravity, the battery is ready for u~e. NOTE: Add 4 points (.004) to the re.ading for every 10°F electrolyte temperature above 80°F, and subtract four (4) points for every 10~F electrolyte temperature below 80°F. Selecting A Replacement Battery When selecting a replacement battery it should be noted that battery power shrinks while the need for engine cranking power increases Chart) with falling temperatures. (See ENGINE CRANKING BATTERY POWER TEMPERATURE POWER NEEDED 100 % 80 o 100 ~ 68 % 32 o 165 % 46% 0 ° 30% -20 ° 250% 350% Installing Batteries The following points are important to properly install a battery: 1. Be sure the battery carrier is clean and that the new battery rests level when installed.. 2. Tighten the hold-down evenly until snug. Do not draw down tight enough to distort or crack battery case. 3. Be .sure the cables are in good condition and the terminal clamps are clean. Grease battery terminals lightly before attaching cable clamps. Make sure the ground cable is clean and tight at engine block or frame. 4. Check polarity to be sure battery is not reversed with respect to the generating sy,stem. 5. Connect "grounded" terminal of the battery last to avoid short circuits which will damage the battery. Servicing Batteries The following points are important to properly service a battery: III. Alternator o Check the level of the electrolyte regularly. Add water if necessary but do not overfill. Keep the top of the battery clean. When necessary, wash with baking soda solution and r.inse with clear water. Do not allow soda solution to enter cells. Inspect cables, clamps and hold down bracket regularly. Replace if necessary. Use the light load test as your regular service test to check battery condition. Check the electrical system if the battery becomes discharged repeatedly. CAUTION Sparks or Flames Near a Battery that is Being Charged May Ignite Explosive Gases Causing a Dangerous Explosion. The alternator differs from the conventional D.C. shunt generator in that the armature is the stationary member and is called the stator; while the field is the rotating member and is called the rotor. Alternating current is rectified (changed to direct current) by means of diode rectifiers rather than mechanically with brushes coming into contact with the various segments of the rotating armature on the generator. With this construction, the higher current values involved in the armature or stator may be conducted to the external circuit through fixed leads and connections rather than through the rotating commutator and brushes as in D.C. generator. The comparatively small values of current supplied to the field may be conducted without difficulty through small brushes and rotating slip rings. The alternator is somewhat lighter and more cbmpact in design than the conventional D.C. generator of comparable electrical size and is equally as simple to service and test. Each bearing is prelubricated which eliminates the need for periodic lubrication. PRECAUTIONS TO BE OBSERVED WHEN TESTING OR SERVICING THE ALTERNA- TOR SYSTEM.
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CONTINENTAL L-HEAD OVERHAUL MANUAL
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QUICK REFERENCE SECTION INDEX First
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SECTION VII ~ IGNITION CONTINENTAL
Page 7 and 8: Page 2 CONTINENTAL L-HEAD ENGINE MA
Page 11 and 12: SIX CYLINDER L-HEAD ENGINES* M 0 D
Page 15 and 16: Page 10 CONTINENTAL L-HEAD ENGINE M
Page 29 and 30: P~ge 24 CONTINENTAL L-HEAD ENGINE M
Page 47 and 48: Page 49~ CONTINENTAL L-HEAD ENGINE
Page 57: Page 51A DISTRIBUTOR 14- WIRE-RED I
Page 87 and 88: LIMITS AND CLEARANCE DATA Engine Mo
Page 91: SERVICE AND PARTS Available from yo
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Continental L-Head Overhaul Manual - Igor Chudov

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