Hello and thanks for viewing my post.
Engine:
1975 mercury 500
2stroke
50 h.p.
This engine ran great for over a year. I replaced the timing belt, after it broke, and somewhere along the way I screwed something else up. At first I attemted removing the flywheel with a puller from an auto store( the typical 3 jaw with a bolt in the middle). After a few attemps I realized I needed the special mercury puller. so I got it and the flywheel came off pretty easy.
Unfortunately I didnt mark the flywheel prior to removal, I put it back together.
After re aligning the flywheel and pulley to specs i found online, (using the engraved marks on the flywheel and arrow on the pulley).
I put the prop in a trashcan of water and it ran great for a few minutes.
Then I took it out on the water and it ran great for ten-fifteen minutes. all of the sudden at full throttle the engine began making a very loud knocking noise. I removed the top cover of the engine and could see that the flywheel was wobbling. I tried to tighten it, and it wasnt loose.
I am not sure what I did, or how to fix this.
thanks for any info related to this
Engine:
1975 mercury 500
2stroke
50 h.p.
This engine ran great for over a year. I replaced the timing belt, after it broke, and somewhere along the way I screwed something else up. At first I attemted removing the flywheel with a puller from an auto store( the typical 3 jaw with a bolt in the middle). After a few attemps I realized I needed the special mercury puller. so I got it and the flywheel came off pretty easy.
Unfortunately I didnt mark the flywheel prior to removal, I put it back together.
After re aligning the flywheel and pulley to specs i found online, (using the engraved marks on the flywheel and arrow on the pulley).
I put the prop in a trashcan of water and it ran great for a few minutes.
Then I took it out on the water and it ran great for ten-fifteen minutes. all of the sudden at full throttle the engine began making a very loud knocking noise. I removed the top cover of the engine and could see that the flywheel was wobbling. I tried to tighten it, and it wasnt loose.
I am not sure what I did, or how to fix this.
thanks for any info related to this
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