Posted by rvirgil_KS on July 31, 2017 at 06:25:26 from (8.36.242.2):
In Reply to: no spark posted by newhaven on July 31, 2017 at 04:43:17:
There are 2 kinds of "12 volt coils". One is marked "12 volts, external resistor required". It has 1 1/2 ohms across + - terminals which is equivalent to a 6 volt coil. An equal value 1 1/2 ohm resistor is required.
Other type is "12 Volt, No external resistor required". It has 3 ohms across + and -, and does not require a resistor.
I have seen some conversion kits that include a resister with too high an ohm value which will cause hard starting and perhaps low power. You can check it with an ohm meter or by bypassing the resistor for a short time.
If you are using the original coil check for rust in the large center terminal or a bulging case. If it has either I would replace it. I'd use the "no resistor required coil" and eliminate the resistor. Use NAPA IC14SB coil or equivalent.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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