As someone who has had the unfortunate experience of this happening, you definitely do not want to start the engine. The electrode did not blow out of the exhaust instead it stayed in the piston area damaged the piston, valves and head. Luckily it was not so bad it could not be repaired (the cylinder block did not get scratched) but it definitely caused other problems. I repaired it myself but if you had to take this into a shop it would have been costly. See if someone can scope it and see if the electrode is in there, otherwise the engine head may need taken off to check.
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As someone who has had the unfortunate experience of this happening, you definitely do not want to start the engine. For me, the electrode did not blow out of the exhaust instead it stayed in the piston area damaged the piston, valves and head. Luckily it was not so bad it could not be repaired (the cylinder block did not get scratched) but it definitely caused other problems. I repaired it myself but if you had to take this into a shop it would have been costly. See if someone can scope it and see if the electrode is in there, otherwise the engine head may need taken off to check.
As someone who has had the unfortunate experience of this happening, you definitely do not want to start the engine. The electrode did not blow out of the exhaust instead it stayed in the piston area damaged the piston, valves and head. Luckily it was not so bad it could not be repaired (the cylinder block did not get scratched) but it definitely caused other problems. I repaired it myself but if you had to take this into a shop it would have been costly. See if someone can scope it and see if the electrode is in there, otherwise the engine head may need taken off to check.