Hi guys, I recently bought an AE112 on lpg/pet, the previous owner said they recently change the clutch (did it himself) I noticed at about 3k revs there is a strange noise coming from the gearbox area but its not there 500rpm + or - so that makes me wonder, is it possible he did something wrong when he was reassembling the clutch or could it be the gearbox wearing as 3k is around highway rpm's, it does it in all gears however, I would rather get to the issue sooner rather than later as this will be my daily for a long time and can't have it clonk out on me on the way to work, any help is appreciated.
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Photos of dodgy gearbox cover install:
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