Glow plug indicator B7100 HST old

[ttfo]

Can I replace my glow plug indicator with a switch on a b7100HST old?

 

[jaxs]

Maybe so,maybe not, all depending on what you are calling "indicator" , your level of expertise and what result you expect.

 

[Russell King]

The indicator is also a resistor so I would not replace it with a switch.

You can wire the glow plugs with a switch but the indicator should be after the switch or you will start to burn out glow plugs.

Tell us what your problem is and we can make suggestions on fixing the problem not butchering your wiring.

The glow plugs get power during cranking also, but the the starter is dropping the voltage, not the indicator which is bypassed during cranking.

 

[TheOldHokie]

Can I replace my glow plug indicator with a switch on a b7100HST old?

I have been using a piece of wire to jumper the burned out indicator on my B7200 for at least a decade and no issues. Unlike a switch it is hard to forget to turn it off

I would suggest one with a momentary action

Dan

 

[ttfo]

The indicator is also a resistor so I would not replace it with a switch.

You can wire the glow plugs with a switch but the indicator should be after the switch or you will start to burn out glow plugs.

Tell us what your problem is and we can make suggestions on fixing the problem not butchering your wiring.

The glow plugs get power during cranking also, but the the starter is dropping the voltage, not the indicator which is bypassed during cranking.

The glow plug indicator/resistor quit working. I purchased a new one, installed it and when i tried it, it shorted out. burned the main wire from the starter, burned the main 9 wire plug and broke my volt meter. I removed the new indicator and bench tested it to find out that is was defected and the post must be touching the frame of the indicator. I got continuity from the post to the entire part. I am in the process of fixing all the damage. the vendor refunded my money and sent me a new one at no charge. I am going to bench test before I install the new one, but it is a pain to install. just thought that putting a switch would be easier. ps. know where I can get a replacement 9 pin connector?

 

[Russell King]

The glow plug indicator/resistor quit working. I purchased a new one, installed it and when i tried it, it shorted out. burned the main wire from the starter, burned the main 9 wire plug and broke my volt meter. I removed the new indicator and bench tested it to find out that is was defected and the post must be touching the frame of the indicator. I got continuity from the post to the entire part. I am in the process of fixing all the damage. the vendor refunded my money and sent me a new one at no charge. I am going to bench test before I install the new one, but it is a pain to install. just thought that putting a switch would be easier. ps. know where I can get a replacement 9 pin connector?

I was the one that suggested you contact @Mountainman at his site

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I know on my older tractor (L185) I was able to purchase the complete wiring harness (2 part numbers) for a not too unreasonable price ($300-400). Mine was just old and the connectors were disintegrating and the wire insulation was brittle so I just bit the bullet and replaced it.

 

[North Idaho Wolfman]

The indicator is not a switch, so no you can not replace it with a switch.
glow plugs are powered via 2 paths.
Preheat path is from the ignition switch thru the indicator then to the glow plugs.
Start path is from the ignition switch straight to the glow plugs.