PDA

View Full Version : Holey brass float


liljegren
5th February 2017, 10:04
My old DR250 has a nasty case of holey float disease, pinpricks galore. There must be a petrol-proof product I can smear over the brass float surface to seal it? Any ideas, oh wise ones?? Cheers, Matt.
Akzle
5th February 2017, 10:25
. There must be a petrol-proof product I can smear over the brass float surface to seal it? Any ideas, oh wise ones?? Cheers, Matt.

ehh, yeah. brass.

braze the cunt.
scumdog
5th February 2017, 11:29
Solder it, simple to do.

And if that fails get another float.
Tazz
5th February 2017, 11:32
Knead-it and possibly epoxy? Good to have options!
liljegren
5th February 2017, 13:12
Tried the solder thing, but it's really hard to get the stuff to take to the actual pinholes. I thought about epoxy, but I rekn the petrol will dissolve it eventually. I can get a new one from Holland for 20 Euros, but the postage was another 30!!
I'd happily buy a whole carb, if someone has one lying around- for a mid eighties DR250S.
Grumph
5th February 2017, 14:56
Tried the solder thing, but it's really hard to get the stuff to take to the actual pinholes. I thought about epoxy, but I rekn the petrol will dissolve it eventually. I can get a new one from Holland for 20 Euros, but the postage was another 30!!
I'd happily buy a whole carb, if someone has one lying around- for a mid eighties DR250S.

Use real liquid flux rather than flux cored solder - and real lead based solder if you can find any now....
scumdog
6th February 2017, 14:56
Use real liquid flux rather than flux cored solder - and real lead based solder if you can find any now....


Wot 'e sed!:niceone:
Akzle
6th February 2017, 15:36
Use real liquid flux rather than flux cored solder - and real lead based solder if you can find any now....

i use powder.

plus pre-soak the original metal. and i'd be doing bronze-tin, high Si, not lead.
Grumph
7th February 2017, 06:40
i use powder.

plus pre-soak the original metal. and i'd be doing bronze-tin, high Si, not lead.

Yeah, I saw your post advocating brazing...IMO use a torch on a brass float and you've got a puddle of brass which used to be a float.

Unless of course you've served an apprenticeship as a jeweller - possibly you have.
The rest of us feel much safer using a soldering iron.
Akzle
7th February 2017, 16:56
Yeah, I saw your post advocating brazing...IMO use a torch on a brass float and you've got a puddle of brass which used to be a float.

Unless of course you've served an apprenticeship as a jeweller - possibly you have.
The rest of us feel much safer using a soldering iron.

i have not.

i mean a brazing torch. not a gas axe!

pre-heat the cnut to warm, heat and flux your rod, just enough flame to make it stick...

bonding dissimilar metals with a (what, 40 watt?) soldering iron...
l33t skillz geezer!
jafagsx250
7th February 2017, 19:38
Yeah, I saw your post advocating brazing...IMO use a torch on a brass float and you've got a puddle of brass which used to be a float.

Unless of course you've served an apprenticeship as a jeweller - possibly you have.
The rest of us feel much safer using a soldering iron.

If the brass goes pink it's pretty near to having a lot of deformities. The main issue is the thinness of the float. Brazing thick brass to copper is easy. Which is what I do at work

You'd just have to have a soft flame and a fair bit of patience.

Sent from my GT-I9506 using Tapatalk
F5 Dave
8th February 2017, 20:31
I've soldered brass floats back on their tabs with soldering iron. Actually used one of those dreadful guns borrowed from a old servo to get me back home. Barely.

And then. . .

Fat tip. Duzel flux, plumbing solder lots of lovely lead.
Motu
8th February 2017, 21:42
Yes, a soldering iron, preferably a big one heated by flame. Just tin and run over the holes...it'll look like a pro did it.
liljegren
9th February 2017, 11:19
Sheesh, I'm a boatbuilder, I guess I'll have to upskill!
Where's that joker who puts his hand up and says "I've got one under my bench you can have for $20!"

Mumbles and walks to garage, ...what the fuck is flux....
Akzle
9th February 2017, 14:04
Sheesh, I'm a boatbuilder, I guess I'll have to upskill!
Where's that joker who puts his hand up and says "I've got one under my bench you can have for $20!"

Mumbles and walks to garage, ...what the fuck is flux....

flux or fucks it. up to you.
F5 Dave
9th February 2017, 20:20
Thisll sort ya out with enough left over for a multitude of jobs.

https://www.mitre10.co.nz/shop/bernzomatic-plumbing-solder-kit-3mm-silver/p/112405