Shake Ya Booty!

[BigDaddyAdz]

Hello, newbie here, virtual beers on me.

I have just purchased a Cayman 987.2 on a 2012 plate, 2.9 PDK with 20k on the clock. First impressions are very good, however it is the first Porsche I have owned so I don't have much to compare it too.

But I have noticed that when the car is sitting at idle there is small but noticeable shake from the rear. The engine sounds fine, the idle is very smooth but it just seems to give a little 'wiggle' every few seconds, it seems in time with the engine tick over. Is this normal?

Edited by BigDaddyAdz on Wednesday 18th January 07:22

[Hugo911]

If you bought from a dealer take it back ASAP. IIRC every dealer is liable to put right faults in first 3 months.

[BigDaddyAdz]

Thanks Hugo, however my question is about whether this is a characteristic of a flat 6 engine?

[Tim bo]

Hard to say without seeing it, but isn't this just the natural resonance of the chassis vibrating more prominently when a very specific idle speed is reached?

If in doubt OP, as always take back to dealer to check it out.

[jackliebling]

My 987.2 and 997.2 both had a slight wobble at times. Dealer always said it was normal.. I got used to it

[BigDaddyAdz]

This is what I'm thinking but I'm going to get the car inspected to be sure.

[Hugo911]

I do remember my 997.1 C2S used to do something similar. The vacant passenger seat would vibrate/shake almost like something out of a horror film. My other half was convinced the car was possessed!

[jsl20]

My 987.1 did something very similar. A bit like a three cylinder wobble. I assumed it was fine.

[olv]

My 2.9 Boxster does exactly the same. I always just assumed it was normal.

[BigDaddyAdz]

Thanks for the input guys. My thoughts are just a bit of resonance, as generally the car seems ok, engine sounds and feels very good. I had planned to get an inspection done before I bought it but as usual for me, in my haste, I bought the first car I viewed, well second to be honest but from the same dealer. The car has 3 months 'end to end' warranty so my plan is to get the inspection done now and if it throws anything up then I will go back to the dealer.

Any recommendations for a good independent dealer in Essex? I've been looking at design911? I may post a separate thread for this.