sikwan
06 Tin Can
There are a lot of already good glow plug write-ups. This is just an addition.
Retrieved a P2135 (Glow Plug Failure Cylinder #3_) from the DAD and measured...
From cylinder 1-5 (top to bottom) glow plugs: 0.9, 2.2, OL, 1.0, 0.7 (ohms). All the Bosch units have tapered elements. Notice there is build-up of rust/dirt/grime on plugs 1 and 2. I'm guessing that my cylinder #2 was about to fail due to the readings.
Bottom most plug is from DieselRX (pn: DRX00024, from Wellman, Made in USA.)
The insulator on the DieselRX (black) is thinner than the Bosch (greenish/white).
The collar location look shorter (closer to hex nut), but the electrical connectors snap on fine. Added copper anti-seize on new glow plug threads.
At 10 years and 69,896 miles (70F ambient)...
Some notes:
Retrieved a P2135 (Glow Plug Failure Cylinder #3_) from the DAD and measured...
From cylinder 1-5 (top to bottom) glow plugs: 0.9, 2.2, OL, 1.0, 0.7 (ohms). All the Bosch units have tapered elements. Notice there is build-up of rust/dirt/grime on plugs 1 and 2. I'm guessing that my cylinder #2 was about to fail due to the readings.
Bottom most plug is from DieselRX (pn: DRX00024, from Wellman, Made in USA.)
The insulator on the DieselRX (black) is thinner than the Bosch (greenish/white).
The collar location look shorter (closer to hex nut), but the electrical connectors snap on fine. Added copper anti-seize on new glow plug threads.
At 10 years and 69,896 miles (70F ambient)...
- I removed the glow plug connectors (using some cheap pliers specifically for gp connectors).
- Warmed up engine using diesel heater (engine did not run).
- Shot some Kroil into glow plug pockets. Left for two days.
- Warmed up engine (with gp connectors still disconnected) using diesel heater.
- Started engine and went for a drive.
- Kroil was still in pockets and did not burn off. Shot some more Kroil.
- It was not more than a minute after turning off the engine that I started loosening the glow plugs with a small 10mm socket wrench with extension. Everything came out easily.
- Installed 5 DieselRX glow plugs with a thin layer of copper anti-seize (Loctite stick).
- Torque down plugs to 8 ft-lbs.
- Reinstalled connectors.
- Clear codes using DAD. Ran engine.
Some notes:
- Yeah I know about the copper anti-seize. I did some research and decided to do it for experience.
- Service manual mentions 106in-lbs, which translates to 8.8ft-lbs. 10% off 8.8 is ~8 ft-lbs due to anti-seize. My calibrated (years of experience ) arms felt this is the right value when I removed them, so I'm comfortable with 8 ft-lbs.
- My 5 new plugs (pn: DRX00024, from Wellman, Made in USA) were $49 shipped.
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