| Flatbob | -- 11-04-2011 @ 10:01 PM |
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Would it be necessary or a good idea to install a voltage regulator on my engine test stand, if so how would I wire it in? The engine is equipped with a 12V alternator and the only accessories would be an electric fuel pump and electric radiator fan. This message was edited by Flatbob on 11-4-11 @ 10:02 PM
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| 51f1 | -- 11-05-2011 @ 5:02 AM |
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I have an opinion. Yes, unless the alternator has a built-in regulator. Wire it up like it would be wired on your truck. Richard
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| supereal | -- 11-05-2011 @ 7:13 AM |
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Most alternators have a built-in regulator, as do all one wire types. You can just run the wire to the battery, as well as a ground wire to the block. In most cases, running an engine on a stand is a short term event, and the battery can run the starter and ignition without charging. When running an engine out of the vehicle, be careful, as the torque reaction of the flywheel can cause the engine to shift upon acceleration.
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| Flatbob | -- 11-05-2011 @ 7:45 AM |
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Super, as you say the run time on the engine stand will be short duration so running electric pump and fan will not be a problem for charging system? Bye the way, I have a two wire alternator. Thanks, Bob
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| supereal | -- 11-05-2011 @ 8:44 PM |
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Two wire is a better unit. If you do plan to run the alternator, run the output wire to the battery, and the other to the ignition switch. If your battery is fully charged, you can run the engine for quite a long time. The requirement for the ignition is very small, as is the pump. The electric fan is a different story. Some draw heavy current, as much as 20 or more amps. Using that may require hooking up the alternator if you plan to run the engine for an extended period.
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