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scarceller scarceller is online now
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Join Date: Oct 2006
Location: Southern MA
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Folks, DO NOT apply 12v to these injectors! you will burn the coil out. It's not so much the 12v but rather the current, many folks try to apply 12v from the cars circuitry and the current level is just to high. A much better way is to just use a 9volt battery, you can leave it connected as long as you wish you won't burn the injector. I have built a test rig for these injectors and I use a DC square wave generator for testing these, (BTW - my day job is Electronic Engineer). as for the rig I have something very simular to what's in the picture above. A long tube one end connected to the injector and the other has a air requlator that connects to my air compresor. I set the pressure via the requlator to about 30psi and I fill the tube with Kerosene then apply the 30psi pressure but NO voltage to the injector yet. Then apply the 9volts and you should get your injector to spray. The longer the tube is the longer your spray test can be. I am thinking of adapting the tube side to a small 1/2 gallon container (Maybe 3" PVC Pipe chamber) so that I can pressurize the larger container filled with Kerosene. I use Kerosene because it is safer than Gasoline or Starter fluid, as already mentioned use care here since you do have a electric source involved and a small spark and Gasoline don't mix well.

The DC Square Wave generator just allows me to pulse the injector just like it works while in the car. DC Square Wave Generators are not very expensive. For example search E-Bay for Square Wave Generator or look at item #220040549296. Well under $50.00.
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1984 911 Carrera Cab M491 (Factory Wide Body)
1975 911S Targa (SOLD)
1964 356SC (SOLD)
1987 Ford Mustang LX 5.0 Convertible
Old 10-24-2006, 08:30 AM
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