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+--- Thread: Mulliner Wood Frame Construction (/showthread.php?tid=1017)
Mulliner Wood Frame Construction - Colin Morgan - 28-03-2018
Hi
When I was working on a 1929 Mulliner saloon recently I found that the left-hand side of the wooden frame had been assembled using left-hand threaded brass screws. I think these are original as the rest of the car has not been messed with. A few of these screws are shown in the picture below. Has anyone else come across them please? Why would they do this – I don’t think the Austin factory used them? Would this help stop the screws loosening when the frame shifts on accelerating/braking/cornering??
Colin
Mulliner LH Screws.jpg (Size: 33.36 KB / Downloads: 843)
RE: Mulliner Wood Frame Construction - Dave Wortley - 28-03-2018
Blimey Colin! Is it April 1st already.
RE: Mulliner Wood Frame Construction - DavidL - 29-03-2018
Its like the chief designer said to the youngster "and draw the other side as a mirror image"...
RE: Mulliner Wood Frame Construction - Nick Lettington - 29-03-2018
Perhaps the chap on the left hand side of the line was left handed?
RE: Mulliner Wood Frame Construction - Colin Morgan - 29-03-2018
I'm lefthanded - not sure what that has to do with it? A few are bent - does anyone know where I can get replacements, please? Usual (reliable) suppliers don't seem to have them.
Colin
RE: Mulliner Wood Frame Construction - Austin Carr - 29-03-2018
(29-03-2018, 04:30 PM)Colin Morgan Wrote: I'm lefthanded - not sure what that has to do with it? A few are bent - does anyone know where I can get replacements, please? Usual (reliable) suppliers don't seem to have them.Not woodscrews but these are left hand thread:-
Colin
https://www.mutualscrew.com/department/opsitreg-truss-head-188-stainless-steel-left-handed-sheet-metal-screws-13401.cfm
RE: Mulliner Wood Frame Construction - Colin Morgan - 29-03-2018
Thanks, Austin
Colin
RE: Mulliner Wood Frame Construction - Colin Morgan - 30-03-2018
The supplier I spoke to today tried to sell me a left-handed screwdriver too - funny man.
Colin
RE: Mulliner Wood Frame Construction - Tony Press - 31-03-2018
(28-03-2018, 07:08 PM)Colin Morgan Wrote: Hi
When I was working on a 1929 Mulliner saloon recently I found that the left-hand side of the wooden frame had been assembled using left-hand threaded brass screws. I think these are original as the rest of the car has not been messed with. A few of these screws are shown in the picture below. Has anyone else come across them please? Why would they do this – I don’t think the Austin factory used them? Would this help stop the screws loosening when the frame shifts on accelerating/braking/cornering??
Colin
I am intrigued - how on earth did you find out these were LH thread woodscrews ? Given that they would be very uncommon I suspect that anyone would normally spend some time tightening these screws, eventually resorting to damage !!
Why LH woodscrews- I can see why some cars had LH axle nuts and centre lock wheels are usually marked left and right with instructions on the thread, but I cannot see why a screw would benefit from a LH thread ??
Cheers, Tony.
RE: Mulliner Wood Frame Construction - Colin Morgan - 31-03-2018
Hi
It always helps to have a screw driver in good condition that fits well - once the screw slot is damaged life becomes very difficult. Since they seemed very tight, I was using the usual trick with wood screws of trying tightening a bit more before loosening, and to my great surprise one came out!
Colin