Violent Vibrations after new Clutch

[s2_bo]

Well, after i finally had a new Clutchnet clutch fitted on Monday (Thanks to Stu for lending me his one) and the completely worn front wheel bearings replaced, the car is now back on the road.

After first inspection everything seemed fine and when i took it for a drive the new clutch responded very well.

However almost straight away i noticed a knocking noise everytime i hit a little bump in the road. This came from under the car towards the front and could be felt slightly through the foot well.
The knocking seems to be worse with bigger bumps.

I was not sure what this was and thought it might be something waring in.

However i took the car for a proper drive tonight and it didn't go well at all.

The first 4 gears are fine and its boosting to stock level. But as soon as you push the clutch in at 4th to change up at about .6 or .8 bar the car starts vibrating very violently, the vibrations are so strong that everything starts bouncing around, and it feels and sounds like you are driving over a cobbled road at 70 mph!!!...

After i felt this i immediately changed back down to 4th and slowed down a bit,

Tried the same again. Excellerating hard through the gears almost to the read line and its fine (Apart from the knocking at bumps in the road), then as soon as the clutch is pushed down and you go for 5th the car starts vibrating like mad and you almost lose control of the vehicle.


any one know what this might be??

I know the garage spent about 10 hours on the clutch and wheel barrings.
Could this be the wishbone bushes? Or something to do with the engine/gearbox mounts?

It feels like something big is not connected properly and when you hit a certain speed it starts to vibrate like mad.

Any one have any ideas before i take it back in there tomorrow for the opinion?

One Thing i did notice was that the Propshaft was hanging from the back diff unsupported for a while as they removed the gearbox - so maybe the CV joints are now broken???
I dont know enough about transmissions to be able to diagnose this, if someone on here has experienced similar symptoms please let me know.

Thanks in advance..

(Sorry for rambling on a bit)
Ta

Bo

[mcandmar]

I'm thinking prop shaft, from your last comment they might have knackered the centre bearing causing the prop to flop about at speed.

I would bring it back and get them to check it out, they may have forgotten to tighten a drive shaft or something of that nature. They obviously didn’t road test it

[s2_bo]

Thanks for your input.
I gues it could be a drive shaft. Would that explain the knoking when ever the car hits a bump?

[Billy the fish]

Knocking could be drop links

[s2_bo]

Pi$$takers


Well it has finally stopped raining, so i got the car up on axle stands and look what i found!
Near side:

IMG_7126.jpg

[Jamo]

holy sh*t!!!!

[s2_bo]

Far side:

IMG_7127.jpg


Any way after i lowered the car back down and tightened the bolts back up all is now fine again!



Not sure on the service from my local garage though.. Pit of a Pi$$ take IMO!

Especially as i just gave them £300 for fitting the clutch and wheel bearing

[Mikes2]

That's the original subframe bolt. Why was it not replaced ?

[s2_bo]

God knows?? maybe they were trying to cut corners? all i know is that they didnt bloody do them up!
Should the seals have been replaced too??

[s2dude]

Far side:

[ATTACH]9604[/ATTACH]


Any way after i lowered the car back down and tightened the bolts back up all is now fine again!



Not sure on the service from my local garage though.. Pit of a Pi$$ take IMO!

Especially as i just gave them £300 for fitting the clutch and wheel bearing

£300 for clutch and wheel bearing is well cheap mate IMO

[s2avant]

£300 is very cheap compared to the main stealer fitted price of £1200 inc VAT.

BUT....

It doesn't excuse not bolting the subframe back in properly. I would imagine it's a case of them forgetting rather than not being bothered. Even then it's still jolly poor show.

Ben

[mcandmar]

Check all the nuts and bolts around the gearbox, just incase...

[Corey]

I would replace those bolts very soon, as the stress of the subframe slamming up and down may have weaked them.

[S2 Ant]

Jeeeeeeeeeeesus, no wonder the noise!

Thats a v cheap change tho for wheel bearing and clutch! Bet they wont do it again at that price

[s2_bo]

Yeah not bad.
It took them 9.45 hours to do the whole lot, I will check all the nuts and replace the ones that took the strain.

Am planing to do the drop links and change to powerflex bushes soon anyway so ill do it all in one go.

Cheers guys.
Bo