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  Author    Grannies Great Aunt!  (currently 8,526 views)
Pete Crudgington
Posted on: January 10th, 2016, 14:39:00
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This is what was left of rear steel arches!

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admin
Posted on: January 10th, 2016, 15:18:51
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My rear arches had gone exactly the same way so I had to rebuild them in all fibreglass except for a small stainless steel plate just to spread the load aroung the damper. Getting the metal arch out was the hardest bit. On this side I managed to extract it from above. When i did the other side I cut out a section of the inner arch and got it out from below. There were two completely separate layers of fibreglass with the steel arch loose in between them. I kept the inner arches and laminated over the top of them.


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mike brown
Posted on: January 10th, 2016, 16:52:56 Quote Report to Moderator
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Interestingly the moulds are similar in that area to the Marcos so there was no need for steel in there at all. Mind there is no need for an steel anywhere in the shell (except a roll cage) if you make some minor adjustments to the lay up and shape/design.
Mike
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Posted on: January 12th, 2016, 11:57:35 Quote Report to Moderator
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Yes, it looks like the underneath was moulded as part of the floor pan, then the steel arch was put in and glassed over except for the damper mounting. Then the inner skin panel was put in. I didn't want to disturb that bit so I've retained the outer radius behind the panel and filled in my cut-outs from underneath. When I did the other side I knew what to expect so I cut out a much bigger slot underneath and then fitted it back in after getting the steel and rust out. That left a gap between the two layers so I could laminate over the inner radius. For the most inaccessible bits I mixed up some chopped strand filler and pushed it into the slot with a spatula.

On the Marcos you just have a bit of steel from around the damper hole down to the floor, which is better as it's harder for salt and water to get at it. I remember Harold saying the steel wasn't really necessary but they did it because it made customers feel happier.
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Pete Crudgington
Posted on: February 5th, 2017, 13:35:03
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All some progress lately, DA'd the body back through many colours back to the white gel coat and uncovered quite a bit more damage!  Want to keep the car looking like a Mk1 with no arches so may take a mould and make  new front end.

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Pete Crudgington
Posted on: February 5th, 2017, 13:35:47
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another picture

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Pete Crudgington
Posted on: February 5th, 2017, 13:36:20
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and another

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Pete Crudgington
Posted on: February 5th, 2017, 13:38:32
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Bonnets, based on my past experience of losing one at 110mph during a sprint I was going to take a mould of this one.  There has been some talk of ones suitable from small bore engines and big bore engines in other posts, whats this one good for?

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mike brown
Posted on: February 5th, 2017, 14:10:24 Quote Report to Moderator
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I think yours is the small bore version. The moulds I have (mk2 and 3) have a wider bonnet vent on top. It looks to me like the mk2 bonnet might fit your appiture. Would you mind taking some measurements so I can compare it would be useful to others if the mk2 bonnet fit the mk1 as well.
Mike

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Pete Crudgington
Posted on: February 5th, 2017, 15:18:25
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Mike, many thanks.  Please see very basic sketch attached.  Measurements taken from underside.  
What sort of state are the mk 2 front moulds in?

Cheers pete

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mike brown
Posted on: February 5th, 2017, 15:34:42 Quote Report to Moderator
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Thanks Pete I'll check them when I get home. The bonnet mould is serviceable the front end mould is very tired it would require lots of tape and plasticine to get one out. I do also have a one piece front mould as fitted to the race mk2s but it does have mk3 style arches. The mk3 moulds are in pretty good shape but again the arches and bonnet appiture are different. As far as I can tell the mk1 and 2 are the same upto the scuttle but I would need two side by side to confirm this.
Mike
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mike brown
Posted on: February 5th, 2017, 17:36:16 Quote Report to Moderator
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It does look like mk1 and 2 bonnets are the same shape.
Mike
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Pete Crudgington
Posted on: February 5th, 2017, 19:04:16 Quote Report to Moderator
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Mike,

Thats good new, need to meet up some time to sort things out, no real rush as its taken 21 years to get this far!  Will make front good to take a mould from but would like to see some of your front moulds to see where joint lines are.

Any idea why the bonnets are different shapes?  big bore engines are a little taller I guess but than can be offset with rocker cover filler heights etc.  Car will be on a 45 DCOE so no need to clear SU carbs.

Cheers Pete
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mike brown
Posted on: February 5th, 2017, 20:07:36 Quote Report to Moderator
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The front end moulds go all the way back to the windscreen, joins the roof mould at the bottom of the a pillar, the side mould meets it along the door shut then it cuts across the a panel to the wheel arch.

It would be good to meet again it's been a while. I think the bonnet thing came about because the early cars only had small engines so when people started fitting bigger engines they suddenly realised the bonnet didn't fit any more so the made a new mould with a wider bulge. Interestingly the bonnet mould is in a different colour gel to all the other moulds I have so I wonder if it's either an original  mk1 mould or its just earlier than the mk2 moulds.
Mike
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Pete Crudgington
Posted on: May 29th, 2017, 10:56:32 Quote Report to Moderator
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Good progress recently, rear inner arches done, new inner sills and floor strengthening.  Larger rear st.st plates with platform for roll cage.  Front also stitched back together.  New plywood box section panels filled over reach arched, replacing the hardboard
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