Marcos Maniacs

hi Mike
Even with damage, the Marcos GT still holds it beauty. Hope you don't mind
expressing my thoughts.
Dave (5006)

> -----Original Message-----
> From:	Mike Denman [SMTP:marcos18001966@...]
> Sent:	Wednesday, November 14, 2001 4:27 PM
> To:	MarcosManiacs@yahoogroups.com
> Subject:	[MarcosManiacs] Project in progress or the good, the bad,
> the ugly.
> 
> Hi Maniacs,
> Two new photos (in Mike Denman's project album).  The first photo 
> (must be viewed full size to see the detail) shows the rear end with 
> the cracks opened up and ready to repair. The black marks on the left 
> side are cracks that could be seen on the inside but not on the 
> outside.  These cracks need to be opened up for repair (from the 
> outside).  This is why spider cracks often re-appear after a repair is 
> done.  From the outside you can't see them all so some escape repair 
> and become visible later after the repair is done. The 2nd picture is 
> a close up of some of the spider cracks that have been opened up for 
> repair.  I used a ¼ carbide tulip shaped bit in a high-speed grinder 
> to open the cracks up.  The cracks need to be completely ground away 
> and the resulting groove should be at least a ¼ wide at the top and 
> tapering to the bottom. Since I have added two additional layers of 
> fiberglass on the inside, this is easy to do.  When you are doing the 
> repair on a panel where the backside is not accessible, it is more 
> difficult since you don't want to grind a groove all the way through 
> the panel.  Although I could begin the filling process at this time, I 
> will deviate from the normal repair process at this point.  If you 
> look at one of the rear end photos that shows the entire rear end you 
> will notice that most of the spider cracks are in groups.  The opening 
> up of the cracks has created little islands of undisturbed fiberglass.  
> Since I want to "re-contour" this rear panel to make it really flat I 
> will need to add some fiberglass over most of the outside of the rear 
> panel.  So, rather than leave the cracks as they appear now, I will 
> take a 2 inch sanding disk (36 grit) in an angle grinder and blend all 
> the grooves together that are close to each other.  This will result 
> in several large repair sites instead of many small repair sites and 
> less opportunity for the cracks to reappear.  On a panel with a lot of 
> detail that would be a bad idea since it would be easy to lose the 
> contour or detail.  This rear panel is flat (or will be when I get 
> through) so that is not an issue.  More photo's tomorrow.
> Mike Denman
> 1966 Marcos 1800
> Chassis # 4079
> 
> 
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