Found inside – Page 11The engine should idle smoothly at normal idle speed , то ad just the carburetor connect a vacuum gauge to the intake manifold , ad just the engine to its ... Found inside – Page 140CARBURETOR AIR CLEANER Emission Controls Closed-crankcase ventilation system ... Check MANIFOLD VACUUM with a vacuum gauge if the engine: idles rough, ... Found inside – Page 35It requires two gauges to test. EGR valve (right) is tested with a vacuum pump. INTAKE MAN! FOLD VACUUM TAP On Toyota, disconnect EGR hose at the carburetor ... Found insideThe engine was tested with prony brake . Fuel was measured by weight using platform scales with the beam graduated in ounces . A vacuum gauge was used in making the carburetor adjustment . Three series of tests were made : ( 1 ) Tests ... Found inside – Page 156IDLE-MIXTURE ADJUSTMENT can be set accurately with a vacuum gauge. ... Don't forget to replace plug when test is finished SINGLE-BARREL CARB ... Found inside – Page 12Additional tests with other inas the name implies , is for testing the cient ... miss . causing erratic vacuum gauge readings . coil testers give the coil a ... Found inside – Page 2638—Testing Manifold Depression With a Vacuum Gauge (Spark-Ignition Engine) 1 TESTING AIR INTAKE SYSTEM ... TEST (SPARK-IGNITION ENGINES) Use a vacuum gauge calibrated in inches of mercury to perform this test. 1. ... 0 Slow needle fluctuation is usually caused by improper carburetor idle mixture adjustment. Found inside – Page 114A vacuum gauge is calibrated for sealevel operation. ... valves plug the system closed at the carburetor end, but remember to unplug it after the test. Found inside – Page 55 VACUUM BOOSTER PUMP LIFT TEST Disconnect both sides of the ... A vacuum gauge reading during cranking of at least 17 inches indicates the intake system to ... Found inside – Page 90Compression and Vacuum Gauges In an age of increasingly sophisticated and expensive electronic test and diagnostic equipment, many boat owners overlook the ... Found inside – Page 53Test and Procedure Results and Indications 7 . 2 – Attach a vacuum gauge per 7 . 1 , and test for an intake manifold leak . Squirt a small amount of oil around the intake manifold gaskets , carburetor gaskets , plugs and fittings . Observe the ... Found inside – Page 131One of the following is the result you'll get: VACUUM TEST RESULTS Vacuum reading Meaning Gauge needle floats over range of 4 to 5 inches. Carburetor out of ... Found inside – Page 32Test and Procedure Results and Indications 7 . 2 – Attach a vacuum gauge per 7 . 1 , and test for an intake manifold leak . Squirt a small amount of oil around the intake manifold gaskets , carburetor gaskets , plugs and fittings . Observe the ... Found inside – Page 1Manifold Vacuum Test Compression Test CAUTION : Should it become necessary to turn on the ignition switch to crank the ... Manifold vacuum is affected by carburetor adjustment , valve timing , ignition timing , condition of valves , cylinder compression ... Because abnormal gauge readings may indicate that more than one of the above factors are at fault , use care in analyzing an abnormal reading . Found inside – Page 29Tee vacuum gauge into vacuum hose at EGR valve ( upper port on dual diaphragm ... vacuum control valve ) , any vacuum magnitude applied at carburetor end of ... Found inside – Page 120Periodic readings with a vacuum gauge will help tell you whether your engine is ... gasket leaks, and carburetor misadjust- ments, to name a few. Found inside – Page 92Another specialty tool is available to vacuum test a power valve with the power ... The pump's gauge allows you to monitor the opening point of the valve. Found inside – Page 137Remove the carburetor-to-spark delay valve hose from the spark delay valve and connect the vacuum gauge to it. Start the engine and raise the ... CAUTION: The rear of the car must be firmly supported during this test. If one of the rear wheels ... Found insideSPECIAL EQUIPMENT : Tester , internal combustion engine ( vacuum - pressure gauge ) . INSTRUCTIONS FOR TESTER AND JOB SAMPLE CHECKLIST : I. Tester will say ... Found inside – Page 166VACUUM GAUGE DIAGNOSIS Needle floats Faulty carburetor Perform appropriate adjustment ... All about compression testing A compression test of each cylinder, ... Found inside – Page 134VACUUM GAUGE INTAKE MANIFOLD from the engine to prevent crankcase air from flowing through the carburetor and indicating a leak past the ... Disconnect the whistle from the adapter hose and connect the tester , as shown in Figs . Found inside – Page 46Connect vacuum pump with vacuum gauge to EGR system vacuum hose at carburetor . c . Plug fitting at carburetor . d . With tachometer installed , operate all ... Found inside – Page 495Single stage carburetor, 267 Single-stage filtration, 159, 160 Single venturi, 269 Sintered bronze filters, 1 56 Siphoning ... vacuum motor, 229, 230 Thermostatic fuel gauge, 127-130 service, 128 tank unit testing, 129 tester, 129 voltage limiter ... Found inside – Page 226 USING A VACUUM GAUGE Because an internal combustion engine is essentially a big air ... poor carburetor adjustment , and exhaust back pressure problems . Found inside – Page 144A vacuum gauge is usually combined with a fuel-pump pressure tester. ... to trace the vacuum hose from the choke vacuum break on the side of the carburetor ... Found inside – Page 252Place hand over carburetor so air can't enter. Gauge should show 12 to 14 inches of vacuum. If less, remove carburetor and repeat test with hand over intake ... Found inside – Page 93Pump pressures should always be taken with the test gauge head level with the fuel bowl of the carburetor . ... of the float valve needle or seat to facturer's specifications . leak . b ) Operation of vacuum pistons and accelerating jet systems . Found inside – Page 414There shall be no visible loss of diaphragm displacement or drop in vacuum gauge reading after a 15 second observation. Vacuum purge system and diaphragm ... Found inside – Page 106Carburetors : not aircraft Brake drum lathes : automotive Brake fillers ... motive Batteries : storage Headlight testers : automotive Vacuum gauges for ... Found inside – Page 96The vacuum purge system must be open during this test when applicable . ... the displacement shall be within +0.8 mm B. CARBURETOR CHOKE THERMOSTATS 1. Test ... Found inside – Page 1-13Indications of compression problems should be confirmed by a vacuum gauge test before disassembling the engine . There are commercial cylinder leakage ... 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