disco stu wrote:So, been playing around with my Browning/FN trombone. Trigger is quite heavy, and I think it's mainly down to the main/hammer spring being too heavy, placing to much force on the sear.
I want to try putting a bit lighter trigger spring and a lighter hammer spring in it and see how it goes. The hammer moves a fair way forward before it strikes the firing pin, so I'm thinking that leaves plenty of inertia for firing pin to strike the rim. Plus I'm thinking this spring isn't original, not that I can find details on original.
What I need is something around 7.5mm OD, 130mm long type of thing, so much longer than normal springs.
So anyway, just wondering if anyone can tell me the sort of shops that sell springs that aren't your run of the mill short ones you buy at Bunnings? I wasn't sure if it's the sort of thing stocked by fastener/bolt shops, or if bearing and o ring shops would generally have them? Can't find any reference to springs on the websites of those kind of shops locally, and eBay doesn't seem to have anything close that isn't located in China.
I'm hoping to buy locally as I would like to compare to the current spring.
Appreciate any advice you all might have
Stu
disco stu wrote:Good idea, cheers
Dimensions, in normal logical units is OD ~7.5mm, wire 0.85mm, length is right on 130mm.
I was intending to try something around 0.65 wire diameter and trim it down a bit and see how the trigger is. OD isn't overly important, but it just needs ID greater than 5.5mm
Downunder wrote:This mob is local to me, home business that specialises in online with a huge amount of stock on hand.
He’s never let us down with all manner of springs for our machinery.
http://www.asisprings.com.au
disco stu wrote:Cheers guys.
BR: is the only concern with pitch being the compressed length? I'll pop it back out tomorrow and measure that, one thing I forgot before
Appreciate the offer old bloke.
I thunk I found a spring maker close by (port Kembla, home of the Owen gun). I was thinking it shouldn't be too hard around here being a steel town. I'll give them a call tomorrow and see what they have