CSL bodyshell stress crack - warning!

Originally Posted by Nords

I know the crack was only on one side, but by strengthening one side only, would it put more pressure on the 'same spot' on the other side? I wondered if not put a strengthening plate on both sides of the car (not one 'below' and one 'above'). Does that make sense?

The crack is on the bodyshell where the subframe attaches. This revised diagram probably explains it better:



All 4 points where the subframe attaches have now got new welded plates, to be safe.

Originally Posted by NZ_M3

Some of the guys in the US cut open the boot floor (as recommended by Turners repair instruction) - which then allows you access to the "otherside" of the subframe floor mount plate and weld up the other side and do further rust proofing.

They only do this to the most extreme cases of subframe floor mount tear though.

For those interested in the structural foam method the defect number on the TIS is 41 11 91 01 00
TIS 41 03 03 (025)

I had noticed Turner were recommending that, I'll ask the garage their thoughts, however I think its as you say - for the most extreme cases where there is an actual tear rip.

[shimmy]

Bump

Just interesting reading Steves old thread back after 3 years

[uncle benz]

Hate to admit it, but I've a little crack appearing on mine. About 10mm in length at the moment, and right on the corner where the horizontal goes into the vertical. Planning to keep an eye on it this season and repair it in the winter provided it doesn't gallop away. I've got a few dates in the diary, and don't want to pull it apart yet. I could always use the mx5 if it came to it, but Spa won't be much fun with 130bhp...

[shimmy]

Originally Posted by uncle benz

Hate to admit it, but I've a little crack appearing on mine. About 10mm in length at the moment, and right on the corner where the horizontal goes into the vertical. Planning to keep an eye on it this season and repair it in the winter provided it doesn't gallop away. I've got a few dates in the diary, and don't want to pull it apart yet. I could always use the mx5 if it came to it, but Spa won't be much fun with 130bhp...

Are you doing MLR day on the 28/5?

[uncle benz]

No, I'm there in October with circuit days. I've been invited to the destination nurburgring the day before too, but family commitments mean that's on hold for the moment.