R56 Engine replaced; now destroys drive shafts! - MINI Cooper Forum
Go Back   MINI Cooper Forum > Model Specific MINI Forums > MINI Cooper S > Second Generation MINI Cooper S


Second Generation MINI Cooper S MINI Cooper S Late 2006 - Present

Mini2.com is the premier Mini Cooper Forum on the internet. Registered Users do not see the above ads.
Reply
Similar Threads
Thread Thread Starter Forum Replies Last Post
MINI R56 engine Timing chain genus9 General Discussion 7 Apr 1st, 2014 11:18 PM

 
LinkBack Thread Tools Rate Thread
  #1 (permalink)  
Old Jun 27th, 2014, 12:28 AM
MINI2 Newbie
Offline
 
Join Date: Feb 2013
Posts: 6
Local Time: 02:08 AM
United Kingdom
R56 Engine replaced; now destroys drive shafts!

My son's R56 Cooper S recently had a rebuilt engine dropped in to replace the original which was "broken".
Within an hour or so after collecting the car from the garage, the outer CV joint on the front left drive shaft fell to bits.
A new drive shaft was installed and all seemed fine. Until he had driven the car for about 5 miles. The brand new drive shaft went bad, just like the original.
It seems the drive shaft may have too much slack, allowing the CV joint to part when cornering, tearing up the rubber boot that covers the joint and allowing the bearings to thrash around.
Looking at the engine mounts from above, there is a mount on the left side of the car that can be easily seen. The mounting bolt on that side comes up through a slot in the mount, allowing for sideways movement of the engine in the mount.
The bolt has been installed and tightened with the engine apparently all the way over to the right side of the car, ie the mounting bolt is hard up against one end of the slot in the mount.
It looks very much as if the engine has been mounted way over to the right side of the car which means the transmission is too far away from the wheel and the drive shaft is effectively too short.
Is there a correct way to align the engine left to right? Does the engine have to come to bits to properly align the engine so the engine is centred properly between drive shafts, or is it correct to slacken that one slotted engine mount and lever the engine into the correct alignment before tightening again?
Cheers
Reply With Quote
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old Jun 27th, 2014, 01:20 PM
MINI Technician Sydney
Offline
 
Join Date: Jun 2014
Location: Sydney
Posts: 9
Local Time: 01:08 AM
Australia Male
it's not possible to mount the engine too far over, the mount on the drivers side top is hard up against the side of the engine bay and on top of the chassis rail below.
the passenger side mount also has no adjustment, then there is a third mount at the bottom with a huge mount that can only fit one way.

either they are fitting incorrect driveshafts (many different gearboxes and shafts for r56) or they aren't careful enough when fitting them and the cv bearings are popping out of the joint and then destroying it.
Reply With Quote
  #3 (permalink)  
Old Jun 27th, 2014, 03:28 PM
MINI2 Newbie
Offline
 
Join Date: Feb 2013
Posts: 6
Local Time: 02:08 AM
United Kingdom
Well that's a bit baffling.
The mount on the passenger side has an elliptical slot, not a round hole and there is about an inch of possible movement along that slot.
The first drive shaft popped and destroyed the CV joint was the original and the replacement that lasted 5 miles was the correct replacement.
How can you fit the drive shaft incorrectly? Surely it goes into the gearbox end until the O ring pops into place, then the other end goes into the hub and the nut tightened accordingly?
Reply With Quote
  #4 (permalink)  
Old Jun 28th, 2014, 10:56 AM
MINI Technician Sydney
Offline
 
Join Date: Jun 2014
Location: Sydney
Posts: 9
Local Time: 01:08 AM
Australia Male
ahh ok sorry there is some adjustment in the central bolt of the top mounts, I'm surprised it would be out to one side though because the bottom mount has no adjustment.
Check the left side mount where it is bolted to the body with 13mm bolts, sometimes they can come loose and give a lot of movement.
if the joint is put on a weird angle during installation or hyper extended the little needle bearings can fall out of place and cause a world of pain.
Reply With Quote
  #5 (permalink)  
Old Jun 28th, 2014, 02:33 PM
MINI2 Newbie
Offline
 
Join Date: Feb 2013
Posts: 6
Local Time: 02:08 AM
United Kingdom
Thanks for the info.
It looks like it has now been cracked. The bracket is referred to in the manuals as the transmission bearing or suspension bracket (fair enough as it connects to the diff). Having removed the ECU and various other bits, it became obvious the bolt was not in the original location as it was possible to see marks from the original installation, about 1/2" away. Once the nut was loosened, it was possible to crowbar the engine over to the left until everything was back where it used to be. Next step will be to replace the drive shaft and check the slack in the shaft with the wheel turned full lock to the left. With a bit of luck, it shold stay in one piece!
Cheers
Reply With Quote
  #6 (permalink)  
Old Jun 30th, 2014, 12:26 PM
MINI Technician Sydney
Offline
 
Join Date: Jun 2014
Location: Sydney
Posts: 9
Local Time: 01:08 AM
Australia Male
good stuff mate, I've never seen one come off completely like yours had but I've seen a couple where those mount bolts have started to come loose.
no more cv's!
Reply With Quote
Sponsored Links
Advertisement
 
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
MINI R56 engine Timing chain genus9 General Discussion 7 Apr 1st, 2014 11:18 PM

» Recent Threads
How best to sell Mini
Dec 13th, 2014 01:00 PM
Last post by UtilityGuy
Today 01:04 AM
4 Replies, 564 Views
Anyone know what this knob does?
Yesterday 12:19 PM
Last post by TomEdwards
Yesterday 08:54 PM
3 Replies, 183 Views
Light loose steering then EML light. Possible hump back bridge issue
Yesterday 04:44 PM
Last post by Davenegus
Yesterday 04:44 PM
0 Replies, 85 Views
Help please: Humpback bridge whoops steering odd and EML light
Yesterday 04:39 PM
Last post by Davenegus
Yesterday 04:39 PM
0 Replies, 86 Views
R56 MCS JCW cooling system problem?
Nov 15th, 2014 05:11 AM
Last post by Richard of the Hills
Yesterday 12:00 PM
1 Replies, 502 Views
How much do you pay in insurance?
Jul 24th, 2010 04:01 PM
Last post by whaap
Yesterday 11:56 AM
89 Replies, 34,915 Views
Airbag resistor value: 3.9 Ohms ? For sure ?
Nov 21st, 2003 09:18 PM
Last post by mab01uk
Yesterday 10:07 AM
4 Replies, 1,951 Views
Missing Functions
Dec 19th, 2014 12:57 AM
Last post by SteveB00
Yesterday 09:43 AM
9 Replies, 347 Views
Key button Door Unlock
Dec 19th, 2014 06:48 PM
Last post by heathwebbo
Yesterday 08:13 AM
1 Replies, 163 Views
engine will not start properly
Aug 12th, 2014 03:37 PM
by genik
Last post by genik
Yesterday 06:13 AM
5 Replies, 965 Views
mini cooper 2007 won't start
Yesterday 02:19 AM
by mc4400
Last post by mc4400
Yesterday 02:19 AM
0 Replies, 165 Views
No power under 4000 rpm and hard start
Oct 29th, 2014 11:39 PM
Last post by scrappyloz
Yesterday 01:41 AM
4 Replies, 777 Views
Cooper D DSC light and engine light
Dec 19th, 2014 11:56 PM
by hyvrid
Last post by hyvrid
Dec 19th, 2014 11:56 PM
0 Replies, 135 Views
Aux function not showing up
Dec 19th, 2014 10:57 PM
Last post by nahumbruhh
Dec 19th, 2014 10:57 PM
0 Replies, 134 Views
Chrome trim for 51 plate Mini Cooper
Dec 13th, 2014 12:28 PM
Last post by jessybaby96
Dec 19th, 2014 10:44 PM
4 Replies, 381 Views
Xenon lights problem
Dec 16th, 2014 07:49 PM
Last post by IloveMyMini1997
Dec 19th, 2014 09:16 PM
4 Replies, 461 Views
2008 mini cooper heating and fan problem
Dec 19th, 2014 07:07 PM
Last post by gtsmyth23
Dec 19th, 2014 07:07 PM
0 Replies, 138 Views
New MINI Cooper S Owners Roll Call.....
Nov 18th, 2006 10:20 PM
by Paul
Last post by RckStrGrl21
Dec 18th, 2014 09:59 PM
696 Replies, 171,624 Views
» Premium
» Auto Insurance
Wheel & Tire Center

Powered by vBadvanced CMPS v3.2.1

All times are GMT. The time now is 01:08 AM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.3.2