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Re: Chasis brace a DIY? [Re: TimG] #678969
20/12/20 01:07 PM
20/12/20 01:07 PM
Joined: May 2011
Posts: 1,285
Near Windsor Berkshire
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Rog G Offline
Has a lot to Say!
Rog G  Offline
Has a lot to Say!
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Joined: May 2011
Posts: 1,285
Near Windsor Berkshire
Originally Posted by TimG
My July 2013 car had the bolt in brace fitted Oct 2015 & 3000 miles later in March 2017 the chassis cracked & car went to MMC for a replacement chassis.

It seems to bit of the luck of the draw my car was built April 2013 and had the brace fitted in August 2017 at about 6000 miles, it has now done nearly 30000 miles and the chassis is OK.


2013 M3W
1971 4/4 2 Seater
1934 Sports
Re: Chasis brace a DIY? [Re: craig from mich] #678979
20/12/20 02:20 PM
20/12/20 02:20 PM
Joined: Dec 2020
Posts: 32
Ann Arbor
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okay, thanks for the advice everyone. I will give it a thorough once over before the brace it installed. If there are cracks, I will post another thread about how to proceed. in the meantime, I think someone should nominate p.g. bleazey for a noble prize. his youtubes are really quite fine.

Re: Chasis brace a DIY? [Re: craig from mich] #679079
20/12/20 11:14 PM
20/12/20 11:14 PM
Joined: Jan 2014
Posts: 1,023
O'Fallon, Missouri USA
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Dan_Lockwood Offline
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O'Fallon, Missouri USA
Not having a M3W has it's limitations when offering suggestions on frame support, but I'm still a HUGE advocate that a front cross brace from the top of each forward upper frame tubes need to be connected together in front of the motor, like the ACE does. This will tie each upper side of the front frame tubes together giving them more resistance to flexing.

With the upper A arms just flexing up/down on each bump, they also push inward towards the motor and without any front cross brace, they WILL flex.

Craig, good luck with your future brace install.

Re: Chasis brace a DIY? [Re: craig from mich] #679101
21/12/20 08:52 AM
21/12/20 08:52 AM
Joined: Nov 2013
Posts: 1,786
Aberdeenshire
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TimG Offline
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Joined: Nov 2013
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Aberdeenshire
Originally Posted by craig from mich
okay, thanks for the advice everyone. I will give it a thorough once over before the brace it installed. If there are cracks, I will post another thread about how to proceed. in the meantime, I think someone should nominate p.g. bleazey for a noble prize. his youtubes are really quite fine.

A visual inspection of the likely crack points may not be enough to find any developing cracks. I seem to remember a detection method on this forum involving spraying with WD40 wiping of after a time & dusting with talcum powder or chalk. You can buy commercial kits & it may be worth while

Re: Chasis brace a DIY? [Re: craig from mich] #679156
21/12/20 03:07 PM
21/12/20 03:07 PM
Joined: Jan 2014
Posts: 1,588
Berkshire, England
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Mark H Offline
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Joined: Jan 2014
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Berkshire, England
Craig from mich, not meaning to be negative - Fitting the brace is only part of the solution, you may also need the chassis pillar triangular support mod from the factory welding into place which together with the brace provides the support. Quite a few guys on here have had that mod carried out and there are posts regarding this mod on this forum.

Although running a 2012 early M3W, I had a chassis change negating both the bolt on brace and subsequent pillar support modification.

All the best and above all, enjoy your M3W.

Last edited by Mark H; 21/12/20 03:08 PM.
Re: Chasis brace a DIY? [Re: craig from mich] #679160
21/12/20 03:15 PM
21/12/20 03:15 PM
Joined: Jan 2014
Posts: 1,588
Berkshire, England
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Mark H Offline
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Joined: Jan 2014
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Berkshire, England

Last edited by Mark H; 21/12/20 03:16 PM.
Re: Chasis brace a DIY? [Re: craig from mich] #679786
25/12/20 01:22 AM
25/12/20 01:22 AM
Joined: Dec 2020
Posts: 32
Ann Arbor
craig from mich Online content OP
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craig from mich  Online Content OP
Just Getting Started

Joined: Dec 2020
Posts: 32
Ann Arbor
thanks Mark

Re: Chasis brace a DIY? [Re: craig from mich] #682975
13/01/21 09:44 PM
13/01/21 09:44 PM
Joined: Dec 2020
Posts: 32
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craig from mich Online content OP
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craig from mich  Online Content OP
Just Getting Started

Joined: Dec 2020
Posts: 32
Ann Arbor
say, does anyone have a pic of the " triangular pillar support mod?"

Also, the number under my passenger seat of my 2012 is 504. Does anyone know if the pillar support is also needed with this chassis, perhaps? I find the info on this forum more helpful than calling the Morgan garage (who says I might have to pay to have the chassis brace put on??)

Re: Chasis brace a DIY? [Re: craig from mich] #682983
14/01/21 12:23 AM
14/01/21 12:23 AM
Joined: Jun 2012
Posts: 1,533
United Kingdom, Lincolnshire
planenut Offline
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planenut  Offline
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Joined: Jun 2012
Posts: 1,533
United Kingdom, Lincolnshire

If you go to the thread title list at the top of this forum there is a "M3W Owners Resource - Morgan Three Wheeler Info". There are a number of useful threads there, one is a "Buyers Guide" link to the Morgan Three Wheeler Club website. In the Buyers Guide, Page 6 is a photo of the pillar support you are looking for, along with plenty of other information about chassis cracks and other checks new owners should carry out. Your cars chassis number suggests this modification will be applicable to your car if cracks are found. The first 1027 cars produced had pre 2014 specification chassis fitted from new, although quite a few have had replacement post 2014 chassis fitted since.

Re: Chasis brace a DIY? [Re: craig from mich] #682986
14/01/21 12:54 AM
14/01/21 12:54 AM
Joined: Dec 2020
Posts: 32
Ann Arbor
craig from mich Online content OP
Just Getting Started
craig from mich  Online Content OP
Just Getting Started

Joined: Dec 2020
Posts: 32
Ann Arbor
page 6. got it. okay, I read this but didn't see the pillar support. thanks. I don think there are cracks, but I will insist that it's checked out. It sounds like I am staring down chassis replacement. thanks for posting, planenut

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