Knock when cornering right under full throttle

[maupineda]

Ok guys, I have this situation with my 172, when cornering right and giving it full beans (specially in 2ng gear) I get a knocking noise very similar to that when a mount is gone.

I have read here it may be shaft related and have checked it doesn't do any type of noises when moving at full lock, and no, it doesn't. Also checked and if I do fasty start or make a U turn quickly to either side it doesn't do any noise unless I am agressive, it is just when the engines starts to give its power, lets say cornering at full throtle to the right, engine gets to 5000 and the knocking starts, it goes if I back off the gas pedal. The mounts are not new by any means but they don't seem to play much TBH. Also noticed that if I go full throtle in 1st and even second in a straight line it knocks slightly also, but a lot less than when cornering. Finally, I can go as fast as I can thru a bend without noises at all if I do it smoothly, it seems to start when giving it full gas only.

Any one has an idea what it could be?

Top mounts are relatively new and it doesn't knock on bumby roads

 

[maupineda]

Anyone? need advice!!!

 

[Tony Hunter]

Not to sure on the knocking noise,but you ought to calm down with your driving by the sounds of it.

 

[Camble]

90% sure it's your cv joint.

 

[maupineda]

Not to sure on the knocking noise,but you ought to calm down with your driving by the sounds of it.

On a track?!?!??!?!??!:S:S:S:S This was where I first noticed, then started to try and replicate it, that is where my comments come from, as far as I can tell it didn't do it ever before, and at 2400 meters above sea level it is down 25% on power, so it defenitely should cope with no hassle at all.

 

[sideways danny]

check the driveshafts and the balljoints

 

[Arney]

I say Ball joints.. seeing as its a 12quid part.. no harm in changing it before you pull apart drive shafts. Recently did mine due to an epic amount of noise from the front under braking.. accelerating, cornering, and bumps.. yer.. its was pretty bad.

 

[Tony Hunter]

On a track?!?!??!?!??!:S:S:S:S This was where I first noticed, then started to try and replicate it, that is where my comments come from, as far as I can tell it didn't do it ever before, and at 2400 meters above sea level it is down 25% on power, so it defenitely should cope with no hassle at all.

Ah yes,but you didn't say that to begin with did you.

 

[maupineda]

Thanks for the comments, will check ball joints and the driveshafts. A mechanich said it could be engine not being centered, possible? or just talking crap!!!