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  #1  
Unread 13th January 2019, 07:39 AM
Beachworm Beachworm is offline
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Default driveline vibration

I have just started to notice a very slight vibration under hard acceleration in my 2010 naturally aspirated Forester (160,000 Km). It is not evident at any other time. It can be felt through the seat of the pants rather than through the steering.

Any thoughts about what I should be looking for?
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  #2  
Unread 13th January 2019, 08:11 AM
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jf1sf5 jf1sf5 is offline
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If you feel it in the seat, it probably comes from the rear of the vehicule. Any noise related to the vibration ?
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  #3  
Unread 13th January 2019, 02:46 PM
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Rally Rally is offline
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Maybe tailshaft centre bearing, or uni joints. You’re doing well though. My na forester wasn’t capable of hard acceleration!
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  #4  
Unread 13th January 2019, 05:39 PM
Beachworm Beachworm is offline
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Quote:
Originally Posted by Rally View Post
Maybe tailshaft centre bearing, or uni joints. You’re doing well though. My na forester wasn’t capable of hard acceleration!
Very funny - I'm speaking in relative terms. If I compare it to the Renault R4 I once owned it's positively sparkling.

There are no noises, just the faintest of vibrations noticed when taking off from a standstill on bitumen and only for the first 20-30 metres.
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Unread 13th January 2019, 07:53 PM
MiddleAgeSubie MiddleAgeSubie is offline
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Did you lift it recently? I assume it is CVT. I have a friend who developed some sort of transmission insert for that issue. I think the North American shops adopted it and are now offering it with their kits. He has it for different models. A quick google search found this: https://legacygt.com/forums/showthre...ts-267054.html


The vibration in question usually occurs at low speeds after a 2" lift.
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  #6  
Unread 13th January 2019, 11:06 PM
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Rally Rally is offline
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If it’s only off the line that’s a characteristic of a worn tailshaft centre bearing
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Unread 14th January 2019, 12:33 AM
ABFoz ABFoz is offline
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Some have been talking about some sort of vibration under hard acceleration with lifted Subarus.

I am not sure if it's related to JonDZ's case as he has a CVT, but he installed spacers for his transmission to fix the wobble/vibration. Cheers.

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  #8  
Unread 14th January 2019, 12:38 AM
Beachworm Beachworm is offline
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Thanks for the input.

Middleagedsubie - mine is an SH which does not have CVT it does have a 4 speed auto but it is different to the 4EAT transmission. The reference you gave is for SG.

It certainly feels like it's from the tailshaft. I thought it might be a tailshaft universal joint. I didn't think of the centre bearing but it does make sense. I'll get it checked.
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