racer86
Posted a lot
'72 BMW 2002 / '72 Alpine A110 Gordini
Posts: 2,184
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Feb 24, 2007 18:46:33 GMT
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Now this is not strictly retro automotive content but it is applicable. I have been toying with making myself an arch roller as £260 odd seems a little steep. However as of Wednesday I found my self needing to stuff 9" where previously only 7" had been. Without time to mess around making an arch roller i winged it with surprisingly good results; Take a bottle jack, block O wood and suitably damp plywood.  Before  Stuff bottle jack and wood assortment up arch, warm paint and jack steadily, moving around the radius of the arch as required  Et voila  its not quick but it is effective and gives a really good Finnish. Its all down to the damp plywood molding to the shape of the arch. Nice subtle stretch as well   Keeping it Euro on Borbet A's 7.5" front, 9" rear ;D  sorry about the poo pics it was raining and i generally suck at photography. |
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tigran
Club Retro Rides Member
In rust we trust. Amen.
Posts: 6,444
Club RR Member Number: 142
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Feb 24, 2007 18:52:40 GMT
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Ace result there with some ghetto style improvisation.
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1964 Rover P5 i6
1987 BMW 525e - The Rusty Streak
1992 Micra K10
2001 BMW E46 316i
2002 BMW E46 330Ci
2013 BMW F31 320d
2018 BMW G31 530d
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Feb 24, 2007 18:54:17 GMT
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Sweet! ;D Can I pay you to do mine?  (Probably not a good idea, the rears might explode in clouds of filler  ) |
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Feb 24, 2007 19:47:48 GMT
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Wow! Loving the method (very Pillock) and the end result is sweet. Was there any damage to the paint at all?
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Never trust a man
Who names himself Trevor.
Or one day you might find
He's not a real drug dealer.
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Feb 24, 2007 19:55:58 GMT
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Genius!
I keep wondering about how one rolls the rear arches on a 4-door...?
Specifically, the arches on a 4-door where the door line is quite close to the arch...
*n
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Top grammar tips!
Bought = purchased. Brought = relocated
Lose = misplace/opposite of win. Loose = your mum
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racer86
Posted a lot
'72 BMW 2002 / '72 Alpine A110 Gordini
Posts: 2,184
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Feb 24, 2007 20:01:33 GMT
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Was there any damage to the paint at all? Not really I had removed most of the paint by driving it up the road pre-rolling!!!  It was a bit of a gamble but it did work really well. |
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Feb 24, 2007 20:34:04 GMT
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Genius! I keep wondering about how one rolls the rear arches on a 4-door...? Specifically, the arches on a 4-door where the door line is quite close to the arch... *n Agree on the genius element, wanted to see something like this for ages. Anyone with an answer to Penski's above question?Bit of flare for the foor door boys?!? ;D |
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Club Retro Rides Member
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Feb 24, 2007 20:43:48 GMT
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I guess it'd be very tricky. I think you'd have to graft metal on instead, to create the new curves on the door and possibly the inside edge of the arch as you couldn't pull out the underlying structure? .......or you just use a big pair of arches ;D   ;D |
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Feb 24, 2007 20:48:32 GMT
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Thats pretty damned impressive there Liking the looks of you car as well. Have you started a readers rides thread about it yet? |
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B-8-D
Posted a lot
down to one car!!
Posts: 4,038
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Feb 24, 2007 23:12:48 GMT
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looking good.
ive used simular with a bottle jack too!....
the only difference was that i used lots of layers of 5mm ply in strips the first about 12 inches long and stepping down to shorter pieces as it gets closer to the jack. it worked rather well!
i will have to try the "damp plywood" system..
si
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burns
Part of things
Posts: 373
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Feb 24, 2007 23:35:09 GMT
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Lovely job, you're making me want some nice big Borbet A s for my Manta even more . |
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One of the US newsgroups I used to use suggested rolling the arches using a solid wooden baseball bat, rolled between the arch and the tyre as you forward slowly. A sort of DIY version of those roller that fit on to the hub nuts.
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bryn
Posted a lot
Posts: 3,913
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That's very cool, and something I may have to do this week... Great results there. Have used an alloy base ball bat before, but it meant jacking the car up, then the wheel onto the bat. It really didn't work very well though... I always heat the paint first to help it stay supple and limit any cracking or flaking  |
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Volvo, Buggy, Discovery and an old tractor.
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[**n00b ALERT**]
Sorry but, what actually IS arch rolling? I get the impression from a bit of googling that it's reshaping of the "lip" of the arch, but how so? Does it affect the appearance of the arch or does it just do some magic inside it where it can't be seen?
[/**n00b ALERT**]
Good work with finding a solution though!
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orangecords
Part of things
yawner extraordinaire
Posts: 892
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Feb 25, 2007 12:49:50 GMT
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thats a sweet motor you have there dude-nice diy work too ;D
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I then wanted to start cleaning the interior as it stinks of wood (the material not the smell of a boner) best quote ever! |
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Feb 25, 2007 13:57:47 GMT
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Great! Ive been needing to do this on my daily since I changed from pirelli's to yokohama's, which must have a very slightly chunkier shoulder but I wasn't going to pay to have it done, I will have to dig out the bottle jack and p*ss on a bit of ply.
Did you warm the paint with a heat gun?
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Feb 25, 2007 15:09:00 GMT
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[**n00b ALERT**] Sorry but, what actually IS arch rolling? I get the impression from a bit of googling that it's reshaping of the "lip" of the arch, but how so? Does it affect the appearance of the arch or does it just do some magic inside it where it can't be seen? [/**n00b ALERT**] On a stock arch, the metal comes down the wing, out to the arch then there's a lip which sticks back in towards the inner wing. Normally, on a stock height car with stock wheels this will never cause a problem. Once you get tyres up inside the arch though they can foul on this lip, especially if they're also wider than stock. So all you do is fold this lip, and usually the flat facing part of the arch, back out to form part of the sloping bit. I shall try to explain through the medium of song. I mean imagery:  The bottom of the arch on both sides will normally be left facing inwards, and then a smooth transition to the pushed-out arch at the top of the arch. Edit: Made things a bit clearer on the diagram |
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Last Edit: Feb 25, 2007 15:17:19 GMT by Pillock
Never trust a man
Who names himself Trevor.
Or one day you might find
He's not a real drug dealer.
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Feb 25, 2007 15:10:44 GMT
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Excellent description there, thank you very much kind sir |
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)
