Slack in drive shaft??

pugcrew · 5th October 2018, 19:42

I've had this problems since I've had my CDTI ZTT.

There seems to be some slack somewhere in the drive train. This shows itself mainly when coming off the power, say when coming up to a roundabout, and then coming back onto the power as I pull onto the roundabout without coming to a stop. It seems to happen in different gears.

I get quite a loud clunk and a bit of a jolt. If I really ease the power back in the car will accelerate smoothly away but it doesn't take much for the clunk to happen.

Any ideas what I should check?

75c · 5th October 2018, 19:49

Sounds more lower engine mount than driveshaft

Drummer Boy · 5th October 2018, 19:51

Have you looked at the lower engine mount? They are notorious for wearing to the point that you feel that clunk. If you leave it long enough you'll feel it as you move off from stationary. That's what it sounds like from my very limited experience.

Number 6 · 5th October 2018, 19:51

Quote:

Originally Posted by 75c

Sounds more lower engine mount than driveshaft

I would second that....

pugcrew · 5th October 2018, 20:36

Thanks.

Where is the lower mount and how do I check it?

Sorry if this obvious but I've no idea.

marinabrian · 5th October 2018, 20:45

Quote:

Originally Posted by pugcrew

Thanks.

Where is the lower mount and how do I check it?

Sorry if this obvious but I've no idea.

It's a teardrop shaped metalastic bush bolted to the subframe, and the rear of the engine at the bottom.

The large void bush will be the suspect

Brian

pugcrew · 5th October 2018, 21:16

Thanks, I'll have a look.

roverbarmy · 6th October 2018, 08:21

Rear bush of wishbones on front suspension can also give a clunking on and off the power. Check for front to rear movement on front wheels.

rockerbox · 6th October 2018, 21:25

Dunno what happened to my first post...

But at the risk of repeating myself...

https://www.ebay.co.uk/itm/MG-ZT-1-8...IAAOSwIgNXszS5

Can't see if it's chinese rot. But at least it's actually in UK.
Anyone tried them ?

marinabrian · 6th October 2018, 21:29

Quote:

Originally Posted by rockerbox

Dunno what happened to my first post...

But at the risk of repeating myself...

https://www.ebay.co.uk/itm/MG-ZT-1-8...IAAOSwIgNXszS5

Can't see if it's chinese rot. But at least it's actually in UK.
Anyone tried them ?

Cheap enough to try, and yes it's a Chinese one, and as your car is an 1800, it will probably be ok Martin

5th October 2018, 19:42	#1
pugcrew Avid contributor none Join Date: Apr 2016 Location: Seaford Posts: 146 Thanks: 0 Thanked 3 Times in 3 Posts	Slack in drive shaft?? I've had this problems since I've had my CDTI ZTT. There seems to be some slack somewhere in the drive train. This shows itself mainly when coming off the power, say when coming up to a roundabout, and then coming back onto the power as I pull onto the roundabout without coming to a stop. It seems to happen in different gears. I get quite a loud clunk and a bit of a jolt. If I really ease the power back in the car will accelerate smoothly away but it doesn't take much for the clunk to happen. Any ideas what I should check?

6th October 2018, 08:21	#8
roverbarmy This is my second home Roverless + 1.7D Sportage Join Date: Aug 2014 Location: East Norfolk Posts: 7,050 Thanks: 729 Thanked 2,021 Times in 1,449 Posts	Rear bush of wishbones on front suspension can also give a clunking on and off the power. Check for front to rear movement on front wheels. __________________ Oil in my veins!

5th October 2018, 19:49	#2
75c Gets stuck in Rover 75 Saloon Join Date: Feb 2018 Location: Belfast Posts: 601 Thanks: 150 Thanked 294 Times in 190 Posts	Sounds more lower engine mount than driveshaft

5th October 2018, 19:51	#3
Drummer Boy Regular poster ZT-T Join Date: Mar 2018 Location: Ashford, Kent Posts: 37 Thanks: 5 Thanked 7 Times in 7 Posts	Have you looked at the lower engine mount? They are notorious for wearing to the point that you feel that clunk. If you leave it long enough you'll feel it as you move off from stationary. That's what it sounds like from my very limited experience.

5th October 2018, 20:36	#5
pugcrew Avid contributor none Join Date: Apr 2016 Location: Seaford Posts: 146 Thanks: 0 Thanked 3 Times in 3 Posts	Thanks. Where is the lower mount and how do I check it? Sorry if this obvious but I've no idea.

5th October 2018, 21:16	#7
pugcrew Avid contributor none Join Date: Apr 2016 Location: Seaford Posts: 146 Thanks: 0 Thanked 3 Times in 3 Posts	Thanks, I'll have a look.

6th October 2018, 21:25	#9
rockerbox Avid contributor MG ZT/T Join Date: Dec 2015 Location: Thurrock Posts: 244 Thanks: 37 Thanked 39 Times in 34 Posts	Dunno what happened to my first post... But at the risk of repeating myself... https://www.ebay.co.uk/itm/MG-ZT-1-8...IAAOSwIgNXszS5 Can't see if it's chinese rot. But at least it's actually in UK. Anyone tried them ?