Diff problems i think.

[skeletor]

Hi need some advice please.

Bought a noble m12 gto earlier in the week with low milege, car was perfect, no noise's or creeks and in very good condition. I was out driving today and i am now getting a clonking from the rear, clonks alot worse when cornering or pulling away from a standstill. Once im going there are no clonks in a straight line until i corner.

Does this sound like the diff?

Where can the car repaired around surrey, and how much am i talking?

Cheers
Jamie

[JLSELAN]

Could be diff, but also likely to be CV joint and/or axle problem. If so, it's a much easier fix than the diff.

[mgbond]

skeletor said:

Hi need some advice please.

Bought a noble m12 gto earlier in the week with low milege, car was perfect, no noise's or creeks and in very good condition. I was out driving today and i am now getting a clonking from the rear, clonks alot worse when cornering or pulling away from a standstill. Once im going there are no clonks in a straight line until i corner.

Does this sound like the diff?

Where can the car repaired around surrey, and how much am i talking?

Cheers
Jamie

Personally i would just get a compatent garage to do it. Its an expensive job over 2.5k, there is a way to keep the cost down by cutting a bar out so the gear box can be removed without taking out the engine, you then can have the bar re fitted. This should save a grand maybe.

It may just be CV joint or something, when mine went it would make the back end go all funny while driving in a straight line.

Bondy

[skeletor]

Not sounding good then. The car clonks and locks the wheels kind of, i have to power threw it.

[skeletor]

What diff does the m12 gto have and where can i source one?
Cheers

[daddysumo]

have you checked your hub nuts for tightness ?
are the wheel bearings ok ?

[jdearden]

i had exactly same symptoms. turned out to be drive shaft and cv joint it was knackerd. bought a new one off ebay for 50 quid and fitted in an hour problem sorted. my drive shaft had alot off play in it. would clonk as pulling away and oce going it was fine. if you tapped the accelerator when going along it would do it aswell.

[skeletor]

Have'nt checked anything yet, going to have a look 2moz.
The car is fine when going along, but is realy bad when going around a corner and when pulling away aswel.

If the diff was nackered then i would have thought it would clonk constantly, not just when cornering or pulling away. What you guys think?

JDEARDEN

When your car clonked did it feel like something would lock up aswel?

[jdearden]

not really i dont think. if the diff was knackered i would have thought it would be clonking all the time

[andygtt]

I recently replaced the diff in my 5 speed with a quaife LSD... I also had the gears shot peaned and polished and the box completely refurbished.
Cost me around £1600 inc vat.... if you didnt do the shot peaning etc then you would save another £500

[mgbond]

andygtt said:

I recently replaced the diff in my 5 speed with a quaife LSD... I also had the gears shot peaned and polished and the box completely refurbished.
Cost me around £1600 inc vat.... if you didnt do the shot peaning etc then you would save another £500

Is that with taking the engine out as that sounds like a good deal. Plans quoted 22hrs for engine out and back in and then there is the clutch diff (i did also have a new box) and all the other little bits.

Bondy

[jamescmr2]

hi,

Mine did exactly this. I could corner as fast and hard as i liked with the clutch depressed and it was fine. clutch engaged and it would make a horrible clunk noise and jerk the car too.
Pulling away was bad as well. mine went when i was in York and i drove back to Newcastle, towards the end of the journey it would occasionally clunk in a straight line but rarely.
Area52 has the car at the moment and it was the diff! completely wrecked apparently. I bought a LSD for what it is worth.

I hope it isnt for you though!

all the best

James

[skeletor]

Definately sounds like my diff has gone then.

What diff do i need to replace mine, i.e Make, model of the diff and where can i source one.

Cheers

[jamescmr2]

You seen this mate?

http://cgi.ebay.co.uk/NOBLE-M12-3R-M4

Or was yours the earlier one? if not this is the type of diff you should get in!

cheers

James

Edited by jamescmr2 on Tuesday 20th April 01:25

[F.C.]

mgbond said:

andygtt said:

I recently replaced the diff in my 5 speed with a quaife LSD... I also had the gears shot peaned and polished and the box completely refurbished.
Cost me around £1600 inc vat.... if you didnt do the shot peaning etc then you would save another £500

Is that with taking the engine out as that sounds like a good deal. Plans quoted 22hrs for engine out and back in and then there is the clutch diff (i did also have a new box) and all the other little bits.

Bondy

Wishful thinking there Bondy, I reckon they'd have to be employing Vietnamese boat people to do it that cheaply!
F.C.

[NobleGuy]

skeletor said:

Have'nt checked anything yet, going to have a look 2moz.
The car is fine when going along, but is realy bad when going around a corner and when pulling away aswel.

If the diff was nackered then i would have thought it would clonk constantly, not just when cornering or pulling away. What you guys think?

JDEARDEN

When your car clonked did it feel like something would lock up aswel?

When my diff went it rattled/clonked continuously while driving.

[NickyTwoHats]

When mine went it sounded like a giant gargling with buckets filled with bolts all the time..my guess = CV Joint/Bearings

[slipstream 1985]

when mine went it went vrrmm vrrrrrrrrrrrrmm BAAAAAAAAAAAAAAAAAAAAAAAAAAAANGGGGGGGGGGGGGGG!!


uh oh...


pic btw of the bar to remove




the one at 45degree in the pic is the one to remove.

id highly reccomend a quaiffe diff rather than a standard one to put back in

[andygtt]

F.C. said:

mgbond said:

andygtt said:

I recently replaced the diff in my 5 speed with a quaife LSD... I also had the gears shot peaned and polished and the box completely refurbished.
Cost me around £1600 inc vat.... if you didnt do the shot peaning etc then you would save another £500

Is that with taking the engine out as that sounds like a good deal. Plans quoted 22hrs for engine out and back in and then there is the clutch diff (i did also have a new box) and all the other little bits.

Bondy

Wishful thinking there Bondy, I reckon they'd have to be employing Vietnamese boat people to do it that cheaply!
F.C.

Sorry I took the engine out myself, thats just parts.... takes around 1 day to remove the engine and another day to refit it.

[Mike Tuckwood]

NickyTwoHats said:

When mine went it sounded like a giant gargling with buckets filled with bolts all the time..my guess = CV Joint/Bearings

You've actually heard a giant gargling with buckets filled with bolts? <gulp> It's rough round your way Nicky.


Mike.