Thanks McZippy.
Webasto heater install continued:
The view into the other end of the Burner Insert. Inside on the right hand side you can see the "coking" build up. At the "9 o'clock" position is the Flame Sensor. Directly below it is a hole in the mesh screen. Through the hole the bottom end of the Glow Plug is visible.

Looking into the Combustion Tube inside the Heat Exchanger.

Lift out the Combustion Tube.



The inside of the Heat Exchanger

The tip of the screwdriver is pointing at a piece of what's left of the gasket that fits between the Heat Exchanger and the Combustion Tube.

Use a razor to remove the old gasket.

Dump out the gasket remains.

All the different heater parts.

Next up remove the Glow Plug and clean it. Remove it's hold down screw.

Glow Plug wouldn't come out. It was rusted firmly in place.

The repair manual reads that the Glow Plug is not to be twisted and must be handled with "the utmost care". The manual suggests using "creep oil" to loosen but I tried Liquid Wrench instead.

Let it soak for a couple days without any success. Tried everything I could think of to try and finesse the Glow Plug out and it just wouldn't come free. Never having messed with one before I didn't know how much force I could safely apply. It's a least $60 to replace if I wasn't careful.

Had an idea. I fabricated a cable so I could hook the Glow Plug directly to the 12 volt batteries.

Hooked it up to the batteries until it glowed red. Took but a few seconds.

Waited till it cooled down then the Glow Plug popped right out.

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