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GODDAMNED RUST
Classic Cars (UK) Classic Cars in the UK (uk.rec.cars.classic)
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#11
 
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Re: GODDAMNED RUST -
12-09-2006
, 02:59 PM
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I wouldn't go for fibreglass on any part of a car TBH, you just can't get the strength in a shape that was originally made in metal (fibreglass has to be thicker for the same strength). My answer is usually to cut it out and weld in new metal, but as we all know, it's really difficult to get all the rust out, especially when there's a frame, so it tends to come back. It has on my Elf, where I thought I had got it all. And I don't have the option of a new one on that! |
design your new panel exactly the same as the steel one it replaces. In
the case of a bonnet I see no reson why a double skinned affair - where
there is sufficient clearance, perhaps not the bit just above the engine -
with a foam filling between the layers (think surfboard) shouldn't be just
as rigid as the original and probably a lot lighter. All you have to do
then is solve the problem of bonding the hinges and fastener(s) permanently
into it and Bob's your uncle. There is however a problem: if you have a
head on accident, the fibreglass bonnet won't crumple - it will probably
come straight back and try to cut your head off. This did actually happen
to the MD of AC Cars when they tried a fibreglass bonnet panel on the Ace.
Luckily he ducked in time. I wonder what some of these Cobra replicas
use...
Ron Robinson
#12
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All you have to do then is solve the problem of bonding the hinges and fastener(s) permanently into it and Bob's your uncle. |
trimmer/finisher. What you should find is that they've glassed in a
metal bar and hopefully done it with captive nuts on or threaded it.
--
Conor
The surprise isn't how often we make bad choices; the surprise is how
seldom they defeat us.
#13
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Had a look this morning and it has gone where the frame is so that's why we didn't see it before respray. |
#14
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Conor (conor.turton (AT) gmail (DOT) com) gurgled happily, sounding much like they were saying : Had a look this morning and it has gone where the frame is so that's why we didn't see it before respray. So they leaded over rust...? No. Where did you get that idea from? |
--
Conor
The surprise isn't how often we make bad choices; the surprise is how
seldom they defeat us.
#15
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Chris Bolus <chrisB (AT) RILEYELFb0lus (DOT) com> realised it was Sat, 09 Dec 2006 19:55:31 GMT and decided it was time to write: I wouldn't go for fibreglass on any part of a car TBH, you just can't get the strength in a shape that was originally made in metal (fibreglass has to be thicker for the same strength). I wonder if you really need strength in things like bonnets or bootlids. They're only there to shape the car and keep rain out, but they aren't structural. A shaped sheet of ABS glued onto a well designed framework would suffice, I'd think. The front wings on many modern cars (my 2002 Renault Laguna II being one of them) are made from fairly thin plastic However they are made of that by design, as were a number of panels on |
the back.
Quote:
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and I don't imagine the wings on a Capri are much more structural items. If they could have made them economically out of plastic in the seventies or eighties, I think they would have. But my point is that you can't make a replacement panel that will fit |
isn't structural, but it would need enough strength to prevent flexing
when open on a stay, or even the uplift force from the wind while
driving. Have you seen the size of a Capri bonnet?
--
Regards, Chris (Please take out my car to reply by plain text email)
---1967 Riley Elf----1978 Mini 1000----1979 Ford Capri---
-----1957 Standard 8--------1972 Mini Clubman estate-----
-----1966 Triumph Herald Estate----1965 Hillman Minx-----
#16
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See that shiny looking blob of metal corner? That's called LEAD. Know many cheap jobs where they leaded instead of using filler? |
are far better alternatives.
--
*Work like you don't need the money. Love like you've never been hurt.
Dave Plowman dave (AT) davenoise (DOT) co.uk London SW
To e-mail, change noise into sound.
#17
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See that shiny looking blob of metal corner? That's called LEAD. Know many cheap jobs where they leaded instead of using filler? Lead rusts? |
surrounding steel due to electro-chemical action. It was commonly used as
a body filler before better alternatives became available. And I don't
mean porous fibreglass filler.
--
*I get enough exercise just pushing my luck.
Dave Plowman dave (AT) davenoise (DOT) co.uk London SW
To e-mail, change noise into sound.
#18
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But my point is that you can't make a replacement panel that will fit correctly and have enough strength. You're right that a Capri bonnet isn't structural, but it would need enough strength to prevent flexing when open on a stay, or even the uplift force from the wind while driving. Have you seen the size of a Capri bonnet? Was having a conversation with an acquaintance of mine who used to have |
that once you started to get up to motorway speeds, both corners would
try to lift up and it'd end up shaking. He put bonnet pins in to stop
this but I'd rather not. Also mentioned that the area around the hinges
cracked but having worked in the GRP industry myself once upon a time,
that's down to cheap shit manufacturing as they could have used core
mat in those areas which is as strong as steel.
Looking like it's going to be a metal one or repair and hope.
--
Conor
The surprise isn't how often we make bad choices; the surprise is how
seldom they defeat us.
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