6.2 diesel glow plugs

Quite a few of us 6.2 diesl "diehards" have gone the 60G or other dual-coil GP route, then installed an 1984 and up electronic GP conroller over on the fender skirt, away from engine heat. Then, it will even give the GP's a quick cycle when the engine is lukewarm, GREATLY aiding starting and reducing smoke at startup.

That is how the GP's behave on the electronically controlled 1994 and up 6.5 TD's, and it's a real benefit to starting.

There is a way to add a resistor to the GP controller's feedback circuit to increase "ON time", if needed.

Email me, if you'd like more details.

bigcoulee@hotmail.com

Most of the time, when it stops working - it's because one of two temperature sensors need to be replaced, and they cost around $8 each. The main one to check - or bypass - is the "glow plug inhibitor sensor." When it goes bad, you can just eliminate it and bypass it.

New PTC plugs, besides Delco AC 60GS, are Wellman WAP plugs. Either of these take a little to heat up than the old AC7s or AC9s. Here's a chart:

Wellman GO50 plug for 6.2 and 6.5 diesels
2 seconds - 10.2 volts, 13.6 amps and 1500 degrees F
5 seconds - 10.3 volts, 11.7 amps, and 1560 degrees F
9 seconds - 10.3 volts, 9.66 amps, and 1905 degrees F
12 seconds - 10.4 volts, 8.6 amps, and 2000 degrees F

AC60G (Beru) plug for 6.2 and 6.5 diesels
2 seconds - 10 volts, 8.6 amps and 807 degrees F
5 seconds - 10 volts, 8 amps and 1145 degrees F
9 seconds - 10 volts, 7.3 amps and 1545 degrees F
12 seconds - 10 volts, 7 amps, and 1716 degrees F

Put on a constant push switch hooked to that 12 volts and you'll probably burn 'em out on the first use.

Allan