NightShadow91
Active Member
- Posts
- 111
- Location
- UK
Is it common practice to anneal all copper washers before use, no matter where they're used? Is it only for the heavier guage?
Thanks
Thanks
Should all new copper washers be annealed before use?
- Thread starter NightShadow91
- Start date
This site contains affiliate links for which LandyZone may be compensated if you make a purchase.
jamesmartin
Well-Known Member
- Posts
- 91,879
- Location
- louth lincs
Copper washers should already be soft annealed when freshly bought.
These soft copper washers then work harden the moment they are fitted.
This is why they are replaced, every time they are removed. However if you're desperate and can't get a replacement, it is possible to anneal the old one again, as long as it's kept in mind, that it could be cracked. I've reused copper washers many times on things like injectors, but I'd never reuse them on brake components, simply because it's not safe to do so.
These soft copper washers then work harden the moment they are fitted.
This is why they are replaced, every time they are removed. However if you're desperate and can't get a replacement, it is possible to anneal the old one again, as long as it's kept in mind, that it could be cracked. I've reused copper washers many times on things like injectors, but I'd never reuse them on brake components, simply because it's not safe to do so.
- Posts
- 33,600
- Location
- North Shropshire
surely a connection will either leak, or not? I can't see it would fail over time
Copper washers are used in banjo brake fittings, and these can crack and displace rapidly under high braking pressure. So it's best to always replace copper banjo sealing washer.
Bantam1
Well-Known Member
- Posts
- 1,627
- Location
- North Wales, UK
Thems the ones I always reanneal.
raywin
Well-Known Member
- Posts
- 3,808
- Location
- North Yorkshire
Annealing them wont hurt, I always do it with new injector washers, not all parts are created equal.
Banjo unions often have a concertina type washers on them and they can re seal but it's much better to replace them, flat ones will be work hardened.
Banjo unions often have a concertina type washers on them and they can re seal but it's much better to replace them, flat ones will be work hardened.
flat
Well-Known Member
- Posts
- 9,075
- Location
- Far away from you!!
I have never replaced my sump plug copper washer, I just anneal it every time as I ALWAYS forget to buy a new one until I realise when draining the oil
- Posts
- 10,372
- Location
- A bit sarf of Dorking
Like any diligent owner I have plenty of spares for such occasions.
Can never find them though, and the blowlamp is bright yellow.
flat
Well-Known Member
- Posts
- 9,075
- Location
- Far away from you!!
Rothenburg? The click start on mine is broken
but yes, it’s yellow and easy to find lol
