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Tightening A Convertible Top

This probably won’t be a very useful post, but it is something I learned recently and figured I would share.

My 1999 Mazda Miata had a bit of a problem recently:  the top got loose on one side, up near the latch on the passenger’s side.

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This bothered me for a few days but it was too cold to check out. Fortunately, Friday was a relatively warm day and I got home with some daylight to spare.  It turns out that fixing this problem is quite simple: there is a nut you can turn to tighten or loosen the top.

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In this case, looking at the latch from the side, you can see what a loosened nut’s effect is. Looking directly at the nut, the mechanism becomes clearer:

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The loosened nut elongated the latch mechanism, making it easier for me to put the top up, but leaving a gap for wind. You can tighten this nut by hand; no tools are required for the job.

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Tightening the nut shortens the latch mechanism, leaving you with a tighter seal. Because my top is only about a year old and fits well, I have it tightened all the way. With a top which has shrunk slightly, you might need to loosen the nut a bit.  The end result is a top which forms a tight seal:

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