RalphVa
Super Member
- Joined
- Dec 19, 2003
- Messages
- 7,885
- Location
- Charlottesville, VA, USA
- Tractor
- JD 2025R, previously Gravely 5650 & JD 4010 & JD 1025R
I tried something on my new JD 4010 that others of you may want to try, to learn more about how and when the glow plugs work. I've read some potentially misleading information herein.
Here's what I did this afternoon:
I connected a jumper wire to one of my glow plugs and then connected it to a test light and then grounded the test light.
I turned the key switch to "on". No light.
I then turned the key towards start but not turning on the starter. Test light came on. Around 7 seconds or so later, I heard a low "click" of the solenoid, and the light went out.
I then turned the key switch to full start. The engine started immediately, as opposed to yesterday when I had to crank it a bit, accompanied by lots of white smoke on ignition because I didn't know about holding the key inbetween the "on" and "full start" positions to get the glow plugs to work.
I may do this every time in cold weather, just to make sure I'm turning the key to the right location and listen for the solenoid click to get used to it. Why oh why did JD not put a glow plug light on the dash board like Mercedes Benzes have had for years? (The Benz light comes on when you turn the key "on". When it goes out, THEN you turn it to "start'.)
For my jumper wire, it's one with alligator clips on both ends. I'm just leaving it clipped to the one glow plug and wrap/tie the other end around the air cleaner horn. Each alligator clip is covered with rubber coating; so there's little danger in it shorting out if I don't connect the test light to it.
Ralph
Here's what I did this afternoon:
I connected a jumper wire to one of my glow plugs and then connected it to a test light and then grounded the test light.
I turned the key switch to "on". No light.
I then turned the key towards start but not turning on the starter. Test light came on. Around 7 seconds or so later, I heard a low "click" of the solenoid, and the light went out.
I then turned the key switch to full start. The engine started immediately, as opposed to yesterday when I had to crank it a bit, accompanied by lots of white smoke on ignition because I didn't know about holding the key inbetween the "on" and "full start" positions to get the glow plugs to work.
I may do this every time in cold weather, just to make sure I'm turning the key to the right location and listen for the solenoid click to get used to it. Why oh why did JD not put a glow plug light on the dash board like Mercedes Benzes have had for years? (The Benz light comes on when you turn the key "on". When it goes out, THEN you turn it to "start'.)
For my jumper wire, it's one with alligator clips on both ends. I'm just leaving it clipped to the one glow plug and wrap/tie the other end around the air cleaner horn. Each alligator clip is covered with rubber coating; so there's little danger in it shorting out if I don't connect the test light to it.
Ralph