6th gear, 100kph whoompwhoompwhoop sound?

Engines, Transmissions & Final Drive questions and answers

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mx5002
Racing Driver
Posts: 561
Joined: Mon Nov 26, 2012 7:36 pm
Vehicle: NB8B
Location: southwest sydney

6th gear, 100kph whoompwhoompwhoop sound?

Postby mx5002 » Mon Aug 05, 2013 12:26 pm

Sounds like it comes from the passenger side rear. But if it was a wheel bearing it should happen regardless of which gear I'm in yeah?
Only happens in 6th around the 100-120 mark.

Any thoughts guys
Thanks
GREEN ITB'd NB8B
SMSP south 1.04.30 SMSP GP 1:53:12 SMSP Brabham 2.21.11
Marulan 47.01
Wakefield 1.09.64 :D

emily_mx5
Racing Driver
Posts: 1720
Joined: Wed Aug 03, 2011 5:57 pm
Vehicle: NB SE
Location: Sydney

Re: 6th gear, 100kph whoompwhoompwhoop sound?

Postby emily_mx5 » Mon Aug 05, 2013 12:35 pm

Could be a slight buckle in the rim and/or incorrect balancing weights.

I had the same problem with my NA, new wheels + tyres + alignment made the noise go away. The noise only surfaced at higher speeds aswell.


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