Results 11 to 14 of 14
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March 2nd, 2009 04:37 AM #11
hi neil,
there are two possible faces to your question. one, yoiu attempt to start but the engine fails to crank, or two, the engine cranks or turns over but fails to start. which one is which?
first, if it cranks and fails to start, check the battery state of charge and the cranking capacity with a load tester or disable the fuel system and crank the engine and watch the starting system current( around 250 amperes), if the current is too high, possibilities are you are using too thick of an engine oil, or your strter bushings(bearings) are producing too much friction, or too much carbon buuld up in the compcustion chambers. or the starter has too much carbon dust in the commutator/brush area causing a light short circuit. this can cause a slow cranking speed which does not make the compressed air in the chambers hot enough to ignite the fuel charge.
if it does not crank intermittently, check the starter solenoid for worn contacts, check the battery terminals for high resistance under load(to do this, place the positive terminal of a voltmeter to the + terminal of the battery and the (-) terminal of the voltmeter to the cable clamp. the voltage drop should not exceed 0.2 volts. do the reverse polarity on the negative terminal of the battery, the voltage drop should not be above 0.2 volts. if the voltage drop is excessive, clean and retighten the terminals. or check the ignition switch if it is sending the signal to the terminal 50(solenoid terminal coming from the ST terminal of the ignition switch. just remember, the starting system starts with the battery, to the ignition switch, to the solenoid to the starter and the ground. yeah, check the engine block ground, it should not have more than 0.2 volts drop between the battery negative terminal and the starter housing.
good luck
jick
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Verified Tsikot Member
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April 29th, 2013 04:41 PM #13Sorry to revive this thread. I'm hacing the same problems on my 98 Field Master. How was your issue resolved? Can you recommend the shop that fixed it? I'm not qualified to even do the test/isolation jick.cejoco outlined. Hopefully it's in Muntinlupa, Las Pinas area. Thanks!
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April 29th, 2013 04:45 PM #14
electrician ang hanapin mo. madali lang i isolate ang problema na yan.
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