问:卡车将曲柄,但发动机无法启动- 1973雪佛兰甘蓝型

旧的电池在我的汽车将不会举行,所以我取而代之的是一个新的。安装新电池后,卡车将曲柄,但发动机不会开始。我举行了一个插线测试火花,但没有。我也使用相同的技术来测试线圈线——什么都没有。接下来,我检测电压的输入导线线圈。点火时,只有4伏。接下来,在点火保险丝,保险丝面板,我检测电压,看到12伏特。我知道从起动器电磁是唯一来自其他方向的电压。当我测试了,是12伏进入电磁阀,然而只有4回到线圈。我的卡车起动机是我几个月前安装一个新的。 Next to the distributor is a small capacitor-looking part in the same bracket with the coil. I don't know if this is a resistor or a capacitor. There is only one connection that goes to the coil’s back side connection. I have been researching for wiring diagrams but so far haven't found any. Could you please give me whatever help you can for these problems?