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I took my boat out a couple weeks ago to run and had a knock that I hadn't heard before coming from the motor. Turns out I had a spark plug come loose that ended up blowing out. Boat mechanic called yesterday to tell me this. He said about half of the threads or so are missing now, but the plug still torques down ok and the depth is ok as well. He thinks it "should" be ok, but obviously no guarantees. Their option to fix it is to replace the head, which is several thousand dollars.
I used to have a Ford F150 with the 5.4 Triton motors that would do the same thing. I had a couple plug holes repaired with Time-Sert inserts and they held up really well. I am wondering if anyone has ever done something similar on an outboard? Time-Sert makes an insert in the size for the plug (M14x1.25), just not sure the logistics of actually doing one on these motors. Any advice/suggestions would be much appreciated. Thanks in advance.
I used to have a Ford F150 with the 5.4 Triton motors that would do the same thing. I had a couple plug holes repaired with Time-Sert inserts and they held up really well. I am wondering if anyone has ever done something similar on an outboard? Time-Sert makes an insert in the size for the plug (M14x1.25), just not sure the logistics of actually doing one on these motors. Any advice/suggestions would be much appreciated. Thanks in advance.
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