Exhaust banging/heatshield?

[Butler]

Test drove a 172 today, on bends when flooring it you can hear the banging under the car ive heard on youtube vids. How is this sorted? Is it the exhaust or lower engine mount, and how much are they?

 

[Henry]

there is a common problem with similar sounding symptoms that is caused by the engine mounts. you can sometimes get away with pulling the engine forward after having slackened them, but will need to replace some/all of them if that doesn't sort it.

there are four mounts; three are upgradeable; costs vary - could check out KTEC's site for a rough idea.

 

[Butler]

Cheers Henry. Is the lower one the main culprit? It mentions the exhaust banging on the ktec site.

 

[Henry]

i'm not sure, but think that the dogbone's likely to be the one that causes the most bother

 

[Jamesstone]

but think that the dogbone's likely to be the one that causes the most bother

+1


James

 

[OferPeleg]

When i had this problem i found out the upper mount (under the battery) was broken,

You can check the dogbone if you lift the car and try to move the engine with a pole (between the engine and the chassis)

Ofer.