I have been welding and repairing semi trailers for many years and have
seen numerous times where a crack or break has developed in a trailer and
someone in an effort to repair it put a plate over the crack and welded
around the plate and down the crack. I would get called in when the plate
or metal around the crack would come open again. Upon studying the
situation, I would normally find that the reoccurring break was caused by a
fracture or missing bolt at a remote location which created an
un-engineered for stress point.
In the case of the "Crack of Doom", mirror vibration can help perpetuate
the crack, but more than likely it was originally caused, and is being
extended by an alignment problem elsewhere. In the case of this crack,
check the alignment of your quarterlight frame to the windscreen frame when
you close the door, mis-alignment can create undue stress that must be
relieved somewhere--------The "Crack of Doom"
(Credits to Lindsay Porter/Guide to Purchase & DIY Restoration)
>From my experiences!
Jerry K
3 74-1/2 MGBs
1 75 MGB
----------
> From: RossOvercash <jroverca@tiac.net>
> To: Tripp Household <sawhorse@worldnet.att.net>; MG TeamNet
<mgs@autox.team.net>
> Subject: Re: "Crack of Doom"
> Date: Sunday, October 26, 1997 11:29 AM
>
> Have the same problem on my 74B. Once saw a recommendation on the list
that
> the fix was to weld a piece of stock behind the tear then repair the
tear.
> The cause is vibration of the mirror. It seems to me that this type of
> repair is going to be extremely time consuming and costly. Depending on
> your ability, time and resources an option might be a new door skin. Of
> course, without reinforcement, the tear can happen again!!
>
> Safety Fast !!!
> Ross Overcash, 74B, NAMGBR 2-1172, Ayer MA
>
> -----Original Message-----
> From: Tripp Household <sawhorse@worldnet.att.net>
> To: MG TeamNet <mgs@autox.team.net>
> Date: Sunday, October 26, 1997 10:24 AM
> Subject: "Crack of Doom"
>
>
> >I am currently restoring '80 LE. Have 3" tear in passenger door just
> >forward of mirror mount. Would like recommendations on best approach to
> >repair. Thanks
> >Joe Tripp
> >80' & 75' B Roadsters
> >
>
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