Knocking when I floor it?

[gobblegobble]

Hi all!

Has anyone ever noticed a sort of knocking when they push the car? It sounds as if the exhaust is banging? I noticed at the back that it's a little bit wobbly, so I am going to stuff some rubber in the square bit (if you get that), which should hold that bit better, but it seems more near the front?

 

[Nomad]

Enigne mount common issue on 172's/

 

[Tammersal]

I get it slighty.. But after reading this site and as Nomad states its not uncommon.

 

[Big Iain]

Welcome to 1*2's

 

[SkidMarx]

I get this at around 4 - 5 k when booting it... its knocks a few times, had all new mounts tho.

 

[Beef-Mc]

Engine rocking, exhaust heat shield lose?

 

[T-Bag]

If I boot in first I get what I can only describe as a massive 'bang' noise. It doesn't do it in any other gears though

 

[Spark]

If I boot in first I get what I can only describe as a massive 'bang' noise. It doesn't do it in any other gears though

if thats when u change gear its defos ur engine mount

and i reckon its the heat sheild for around 4-5k thats what mines did

 

[DrR]

The exhaust mount on the back of the car is quite new, but from what i gather on here they are all crap. Not abusing it in 1st are you?

 

[Tammersal]

If I boot in first I get what I can only describe as a massive 'bang' noise. It doesn't do it in any other gears though

mm massive bang.. Mines a mild knock. Just the once and only the once even if pushed hard from 1st to 3rd. I can live with that..

 

[ChrisD172]

How much are the engine mounts then?

 

[Spark]

around 50 quid mines was for the meg, that was with her dads discount as hes a mechanic tho

 

[ChrisD172]

There just the two engine mounts and the dog bone? Are any of them more common for going than the others?

 

[rob_clio197rs]

when the mounts go the exhaust manifold can hit the subframe so that would prob explain the noise.

 

[gobblegobble]

The exhaust mount on the back of the car is quite new, but from what i gather on here they are all crap. Not abusing it in 1st are you?

It still slightly wobbles, so I'm going to stuff it out a bit more so it can't move at all aha!

Erm.. I think it's 1st and 2nd when I hear it? I'm not 100% sure, I will update later

 

[Harry_manback]

i had this, but when i fitted a decat it stopped. so its either the cats extra size was hititng something, or the decat was weaker and allowing more flex for the manifold to hit the bulkhead or something!

 

[Poopensharten]

The exhaust mount on the back of the car is quite new, but from what i gather on here they are all crap. Not abusing it in 1st are you?

It still slightly wobbles, so I'm going to stuff it out a bit more so it can't move at all aha!

Erm.. I think it's 1st and 2nd when I hear it? I'm not 100% sure, I will update later

If its a temporary fix the vibration will move to the next weakest point whatever it is thats rattling