Quashqai clutch help
Author
Discussion

michael-mii89

Original Poster:

11 posts

129 months

Saturday 20th October 2018
quotequote all
Hi not sure if anyone can lend some advice. I have a 2.0 petrol quashqai as the family car. Recently it lost all drive making a horrible noise and cannot select any gears, Upon stripping found the clutch had stripped all the splines on the clutch plate. The input shaft to the box had also suffered damage but a new clutch seemed to hold on fine,

Have refitted the box with new clutch kit. Run the car up on stands and all gears, as soon as the car is back on the ground when running I am unable to select any gears, at first though a bleeding issue but am convinced that this is now air free.

The bit I’m struggling with is why I can get all gears using the clutch in the air but not with he vehicle on its own weight? There are no noises etc when running now and sounds fine

E-bmw

12,372 posts

176 months

Saturday 20th October 2018
quotequote all
When on its wheels does it simply not go into gear or go into gear & not turn a wheel?

When in the air was there a "sudden" engagement in gear or are you able to modulate the drive using the clutch like you would expect to be able to?

michael-mii89

Original Poster:

11 posts

129 months

Saturday 20th October 2018
quotequote all
In the air it’s perfect with no issues goes into gear lovely using the clutch and selects all gears exactly as if you were driving no sudden jumps or anything

On the floor the gear lever will physically not push forward far enough for 1st or back far enough for 2nd etc no noises though as if it was clutch etc would expect to hear a grinding etc if clutch not disengaging fully but it’s silent.

GreenV8S

30,999 posts

308 months

Saturday 20th October 2018
quotequote all
michael-mii89 said:
Run the car up on stands and all gears
Damaged splines preventing the driven plate from moving freely along the output shaft could cause clutch drag.

Does it still engage gears easily while on stands with the wheels stationary? That would tell you whether weight on wheels is affecting the transmission, or just the selector baulking due to clutch drag.


michael-mii89

Original Poster:

11 posts

129 months

Sunday 21st October 2018
quotequote all
Yes with the wheels stationary in the air it selects gear. In neutral the wheels do move on there own in the air but with a little pressure applied they do stop and am able to select a gear.


E-bmw

12,372 posts

176 months

Sunday 21st October 2018
quotequote all
And when you put your foot on the clutch in neutral do the wheels stop?

GreenV8S

30,999 posts

308 months

Sunday 21st October 2018
quotequote all
michael-mii89 said:
Yes with the wheels stationary in the air it selects gear. In neutral the wheels do move on there own in the air but with a little pressure applied they do stop and am able to select a gear.
That doesn't really sound like a clutch drag issue, then.

Something must be changing when it's on the ground. Will it go into gear with the engine stopped?

E-bmw

12,372 posts

176 months

Sunday 21st October 2018
quotequote all
michael-mii89 said:
Yes with the wheels stationary in the air it selects gear. In neutral the wheels do move on there own in the air but with a little pressure applied they do stop and am able to select a gear.
Have just realised you probably meant pressure on the clutch, I initially took that to mean pressure on the wheel.

michael-mii89

Original Poster:

11 posts

129 months

Sunday 21st October 2018
quotequote all
Right done bit more investigating it’s clearly the clutch - when in the air it appears ok but with foot on the clutch in first if I apply the brakes the engine stalls so clutch is not working.

I’ve rebled the clutch with a pressure bleeder so 100% no air in the system but still no joy. This is with a new clutch and pressure plate and also slave cylinder (concentric type in the gear box).

The pedal is displacing fluid ok when trying to bleed manually and feels plenty of pressure so think the master cylinder is ok

DuraAce

4,272 posts

184 months

Sunday 21st October 2018
quotequote all
Pressure plate fitted the right way round?

E-bmw

12,372 posts

176 months

Sunday 21st October 2018
quotequote all
michael-mii89 said:
Right done bit more investigating it’s clearly the clutch - when in the air it appears ok but with foot on the clutch in first if I apply the brakes the engine stalls so clutch is not working.

I’ve rebled the clutch with a pressure bleeder so 100% no air in the system but still no joy. This is with a new clutch and pressure plate and also slave cylinder (concentric type in the gear box).

The pedal is displacing fluid ok when trying to bleed manually and feels plenty of pressure so think the master cylinder is ok
What I was trying to get at in my first post then.

Sorry, but it needs to come back out as something is fundamentally wrong with the clutch operation, or lack of rather.

E-bmw

12,372 posts

176 months

Sunday 21st October 2018
quotequote all
Could be something with the slave, or the clutch itself, hopefully a close inspection/measure will help you sort it out.


GreenV8S

30,999 posts

308 months

Sunday 21st October 2018
quotequote all
Could well be that damaged spline. The friction plate needs to be able to slide along that output spline, and if that's damaged it may not be able to.

E-bmw

12,372 posts

176 months

Sunday 21st October 2018
quotequote all
It could well be that too.

finlo

4,304 posts

227 months

Sunday 21st October 2018
quotequote all
With the wheels off the ground you will be able to select any forward gear without using the clutch so I would suspect a disengagement problem.