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Jackhammer noise from transmission when clutch engaged

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Jackhammer noise from transmission when clutch engaged

 
Old 04-30-2018, 03:43 PM
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Default Jackhammer noise from transmission when clutch engaged

Bit stumped with this sound. Tried searching for posts and on youtube, can't find anything with a similar noise. It seems to be opposite of a TO or pilot bearing. Maybe input shaft bearing? All posts seem to suggest these incredibly rare though. 30k miles on an FM2 clutch.

Noise only occurs when the clutch is engaged / at the top, including in neutral. The noise goes away pretty quickly if I press the clutch down. This started happening instantaneously not gradually.

Any ideas?

Link to noise
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Old 04-30-2018, 10:36 PM
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I think someone else on here had a similar noise. It turned out to be loose flywheel bolts.

The best bet is going to be pulling the trans off and inspecting it. If I were you I'd go ahead and have a pilot and throwout bearing in hand. They are cheap and it will be easy to replace.
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Old 05-01-2018, 12:34 PM
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Originally Posted by miataman04 View Post
I think someone else on here had a similar noise. It turned out to be loose flywheel bolts.

The best bet is going to be pulling the trans off and inspecting it. If I were you I'd go ahead and have a pilot and throwout bearing in hand. They are cheap and it will be easy to replace.
Thanks for the tip. Googling that seems to point to a similar noise. I'll drop the trans this weekend and take a look!
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