|
7 members (CooperMan, MATTMOG, James B W, DMC1904, mph, DJC, Morganmike),
317
guests, and
38
robots. |
|
Key:
Admin,
Global Mod,
Mod
|
|
|
Forums34
Topics48,364
Posts813,339
Members9,215
| |
Most Online1,046
Aug 24th, 2023
|
|
|
There are no members with birthdays on this day. |
|
|
|
Joined: Jan 2014
Posts: 1,075
Has a lot to Say!
|
Has a lot to Say!
Joined: Jan 2014
Posts: 1,075 |
Hugh
It's a real bugger when these things happen. When mine was found it took about ten minutes before it was confirmed that it was going back to the factory to be sorted. Sounds like your chassis has gone in a different place from mine but that whole area appears to be highly stressed and it might be a bit of a toss up where a crack will start to propagate from - mine was from one of the top wishbone rear mount bracket welds.
Some of the info that has been posted is not quite right, sorry Dan but the two chassis pictures are just that; two separate chassis, not one before and after welding in of the cross bracing.
I am aware of three variations of bracing at the front ends of the chassis;
2012 bolt in cross brace only
2013 stiffener plates welded in plus bolt in cross brace
2014 welded in cross bracing only
I'm not going to state any specific dates but I can say that in November 2012 my car went into build, in November 2013 it got rebuilt with a new chassis (which incidentally also required a new pedal box I believe to make it fit.) In January 2014 the 2014 chassis cars were definitely being built.
There are other changes in the various chassis only a very few of which I am remotely aware of. Calum,you are correct about the before and after picture. Clearly two different builds. But it is a early frame without a weld in or bolt in brace and a late frame with the welded in brace. In your first picture you can see rust on the bottom area and then clean steel around the top. So in your case it was probably cracked for some time before it failed and separated completely. All I can say is that there is plenty of force on the upper wishbone horizontal frame tubes.
Dan
|
|
|
|
|
Joined: Oct 2012
Posts: 2,776 Likes: 59
Talk Morgan Expert
|
|
Talk Morgan Expert
Joined: Oct 2012
Posts: 2,776 Likes: 59 |
Dan, The photo without any bracing looks to be a very early car, maybe even pre-production - it also looks to have the original Suplex shocks and the headlamp brackets are welded on. My one had sat effectively untouched for about a month before the crack was found so while you are probably right that it had been cracked for some time the rust marks could be misleading. Don't fancy persuading (or paying!) someone to model the stresses and the propagation rates. 
|
|
|
|
|
Joined: May 2012
Posts: 1,790 Likes: 3
Talk Morgan Enthusiast
|
|
Talk Morgan Enthusiast
Joined: May 2012
Posts: 1,790 Likes: 3 |
Just a thought, having looked at some pictures of the Empire kit it looks to me like the steady bar, which connects the upper wishbone extension to the bottom chassis outrigger triangulates the whole front end. This should make everything much more rigid.
Another justification for ordering the Empire Kit?
Perhaps those who have it fitted could comment on their findings.
|
|
|
|
|
Joined: Apr 2013
Posts: 1,213
Has a lot to Say!
|
|
OP
Has a lot to Say!
Joined: Apr 2013
Posts: 1,213 |
My car is going to the factory on tuesday , they are presuming a new chassis will be required , I don't yet have any idea how long this is likely to take , but I can't imagine it'll be a quick job !
Hugh
|
|
|
|
|
Joined: Feb 2012
Posts: 5,653 Likes: 4
Charter Member
|
|
Charter Member
Joined: Feb 2012
Posts: 5,653 Likes: 4 |
I hope all goes well for you and your M3W.
Martin (Deano)
|
|
|
|
|
Joined: Sep 2012
Posts: 1,959 Likes: 15
Talk Morgan Enthusiast
|
|
Talk Morgan Enthusiast
Joined: Sep 2012
Posts: 1,959 Likes: 15 |
Good news, are you having the upgrades all done while it's there?
|
|
|
|
|
Joined: Jan 2012
Posts: 14,976 Likes: 1
Member of the Inner Circle
|
|
Member of the Inner Circle
Joined: Jan 2012
Posts: 14,976 Likes: 1 |
I hope all goes well for you and your M3W. +1
Richard
1976 4/4 4 Seater
|
|
|
|
|
Joined: Oct 2012
Posts: 2,776 Likes: 59
Talk Morgan Expert
|
|
Talk Morgan Expert
Joined: Oct 2012
Posts: 2,776 Likes: 59 |
Hugh
My one was stated as two weeks at the factory and turned out to be three weeks for the dealer-factory-dealer round trip. Given the work they did I don't see it as happening noticeably quicker than that.
|
|
|
|
|
Joined: Apr 2013
Posts: 215
L - Learner Plates On
|
|
L - Learner Plates On
Joined: Apr 2013
Posts: 215 |
Are there any preventive measures users could take on 2012/2103 chassis to avoid stress cracks, i.e welding additionnal supports or other.
Would be interesting to know how many earlier chassis have cracked and pushed Morgan for an improved 2104 design.
|
|
|
|
|
Joined: Nov 2013
Posts: 1,944
Talk Morgan Enthusiast
|
|
Talk Morgan Enthusiast
Joined: Nov 2013
Posts: 1,944 |
Mine has the 2013 welded stiffening plates & bolted cross brace. I found that one bolt of the brace had worked loose. So far all seems well.
Tim.
|
|
|
|
|
