Brake Calipper Bleed Screw

I have dual disc brake front, and on the right caliper has a earlier owner installed custom / bigger bleed screw, properly because he has damage the threats.... I want to install a new bleed screw with dust cover and be able to attach tube for taking out air etc...

So my questions is what to-do, is it possible to order larger bleed off screws for cars or something?

Can I install an helicoil and then be able to use original bleed of screw?

Please see attached picture for sizes and bolt etc...

I would try to figure out what size the threads are, then get a matching speed bleeder.

martin_csr wrote: I would try to figure out what size the threads are, then get a matching speed bleeder.

Thank you, will do.

If the bleeder orifice has been retapped, I wonder if the bottom seat is a good fit for a different bleeder. I don't know if the taper on the end of different bleeder screws is the same or varies. I would want a perfect seal without leaks.

martin_csr wrote: If the bleeder orifice has been retapped, I wonder if the bottom seat is a good fit for a different bleeder. I don't know if the taper on the end of different bleeder screws is the same or varies. I would want a perfect seal without leaks.

I need to look into these, there are a seat now, but I need to see if the size is larger or not, thank you for your advise.

If it wasn't leaking before, then I would guess you could get a replacement that is the same size as the old bleeder.

Looks like an original bleed screw with a large nut welded on top because the original hex has been rounded off.
A new OEM bleed screw should be a straight fit.

zed1015 wrote: Looks like an original bleed screw with a large nut welded on top because the original hex has been rounded off.
A new OEM bleed screw should be a straight fit.

When I take bleed screw from another calliper it just drop in... so the whole is bigger...
So somebody have made it bigger... so the custom made bleed off screw is larger.

I will figure out what MM it has then order new bleed of screw in the same size.

I think you need some of this bleeder screws (Metric 8 mm / 1 mm pitch)




Michael

Thank you, I have written these down in my project notes
It need to come some later in my project, but good to have a plan

What I have not have decided is if I should make bigger thread on the brake caliper on the other site of the wheel...
so the bleed screw size is the same... for the look.... what do you think?

I think you need some of this bleeder screws (Metric 8 mm / 1,00 or 1,25 mm pitch)




They are available in (M6x1, M7x1, M8x1.25, M8x1, M10x1, M12x1, ...) Europe and (3/8", 1/4", 5/16" NPT 1/4", ...) for GB and USA
cars and motorcycles like NORTON, Harley-Davidson and so on....
Check the threat pitch first with a gauge



Michael

Sorry some double post, editing goes to an 404 side load error.

gordone, let the other side of the caliper as it is!!!
Don´t make you more trouble as you need only for the look, nobody will notice this tiny little bleeder screws are different!!!

Michael