Knocking/Grinding noise under hard acceleration

[MikeyK18]

In my ph1 172 im gettin a knockin/grinding type of noise coming from the drivers side wen i accelerate, i changed my drivers side drive shaft n track rods end etc.

The engine mount on the drivers side cud do with bein changed bt im not sure if that is the problem or not.

(Is it possible it cud be the exhaust vibrating?)

Any ideas????

Please help :S :S :S

 

[RichMcc]

I had a loose dog bone when I first bought my car and that made some crazy noise under hard acceleration, also if the mount you mentioned is dying then that could be causing it, mine was so nackered the cam cover mount was hitting the black part of the mount secured to the bay, rock the engine back and forth and see how much play is in the mount and how easily it moves.

 

[C.slicker]

I have the same problem mate.

 

[RichMcc]

Its a ph-quick.... bend over and take it like a man! lol

 

[MikeyK18]

wat is a dog bone??

 

[deviltronics]

^^^a bone that a dog fetches :lolup:

sorry, its the bottom engine mount towards the back.

i have put uprated bushes in my dogbone as I have the same problem. slightly better but i think i need to change the top engine mount as well.

 

[RichMcc]

The uprated bushes cause the other mounts to fail quicker. (apparently)

 

[deviltronics]

yes, i realised as I am getting all the engine vibaration through out the car now.

 

[christian rea]

could be a drive shaft engine mount or gearbox put the hand brake on and rock the engine by driving in first

 

[franx]

could be a drive shaft engine mount or gearbox put the hand brake on and rock the engine by driving in first

And when you do this and the "knocking" is there, your mounts are shot ?
I got the same problem when getting wheelspin , not a nice noise.

I've read on here that you could readjust the top mount by loosening it, pushing the engine all the way back and then retighten it so the engine is in a better position.

 

[Aids172]

HAd the same knocking and grinding noise under hard acceleration in first for a long time. Got a lot worse recently and its turned out to be the drivehaft gone

 

[Mike@Rentech]

but he said he had the shaft changed, my bets its engine mounts.