|
|
Peter Cowan wrote:
Re contactors and solonoids (maybe it would be clearer to talk about only contactors or only solonoids - aren't they the same?)
Maybe I'm confused but on my Lycoming, the only solonoid for the
starter is the separate contactor near the battery (in addition to
the master switch contactor). This is different from auto starters
where there is a contactor/solonoid right at the starter.
On my mazda installation the builder had a hot line from the
battery to the starter solonoid. I changed it to route from the
master contactor so that it is still hot when the master is on but
dead when master off.
Is someone suggesting 2nd contactor for the starter?
Peter
Unsophisticated explanation:
The terms get used interchangably (is that a word?) but technically, a contactor is a 'heavy duty' relay. A solenoid is a device that uses electrical energy to cause a physical movement. Usually linear, but can be a rotary motion. A typical automotive starter 'solenoid' serves both purposes by switching the high current voltage to the motor and in the same motion moving the pinion gear to engage the flywheel gear. Old style Lyc starters get their gear movement from the 'bendix' & the 'solenoid' for it is just a contactor. That's why the starter pinion doesn't retract when a Lyc fails to start.
Does this help?
Charlie
|
|