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Joined: Jul 2022
Posts: 11
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New to Talk Morgan
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I've noticed an unusual 'knock/clunk' that has developed if I launch the car in 1st gear.
It only happens in 1st gear.
It only happens if you launch the car.
A 'normal' pull away from a standstill or even under half throttle doesn't replicate the noise, and the noise only ever happens once at a time.

I am confident it is not the engine, I almost feel its behind me or possibly the transmission tunnel...

Any idea what it could be?

My first thought was the drive belt skipping a tooth, although I am worried it's something else as I'm sure this never used to happen.

19 plate car with 4k miles.

Joined: Feb 2016
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Talk Morgan Guru
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Nose of bevel box hitting chassis maybe given vaguries of NVH mounting. Check for witness marks.


Richard

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R
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Most likely NVH kit hitting chassis at the front end just behind the gear box. My first M3W would give a couple bangs on a a full throttle getaway, I removed the NVH kit and fitted the Bleazey bevel box mount and it stopped doing it. my current M3W current doesn't do it


2021 M3W
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Thank you, both.

Is this just a characteristic of the car or would something mechanically be fundamentally wrong that has allowed this to happen?

While I don't launch very often, I am sure it didn't do it before last week... But I don't launch frequently enough to actually remember for certain.

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Just check belt isn't too slack and do a spanner check on the NVH kit - front bolts at gearbox rear mount might nip up a quarter of a turn and same with the bottom rear 2 bolts where it mounts across the chassis.
If the belt isn't slack then personally I'd just live with it if its only when you 'launch' the car.


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