Coil stick melted!

Slime Bomb · May 20, 2017

A while ago my 1150gs adv was not quite right. Running a bit lumpy on start up and a little hesitant on acceleration. So, having had this about 40,000mls ago I whipped out the coil sticks. All looked fine so changed the spark plugs and everything was good..well, so I thought. It came back again so, coils out again and I noticed this on one of them

.

Anyone had them go like this before?

Steptoe · May 21, 2017

That's what happens if the coil stick has failed and been left in place for a long period.

They can catch fire or expand and look like someones sprayed a can of insulating foam over the rocker cover.

The wiring and connector plug can also burn and why BMW offers a repair section of wiring for just such a scenario. .

Robbiem · May 21, 2017

Steptoe said:
That's what happens if the coil stick has failed and been left in place for a long period.

They can catch fire or expand and look like someones sprayed a can of insulating foam over the rocker cover.

The wiring and connector plug can also burn and why BMW offers a repair section of wiring for just such a scenario. .

Would anyone recommend putting a thin smear of silicone grease or copper slip on the outside of the stick before fitting or just dry and clean?

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ELIMINATOR · May 25, 2017

I put silicone grease on mine. Although the ones I have currently installed, seem better made. think someone said they are the same as the 1200's?

Last year, while being MOT'D one went up in smoke

Coil stick melted!

Slime Bomb

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Steptoe

What a waste.

Robbiem

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ELIMINATOR

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