Topic: 1974 CB750K Front Brake Caliper Part Identification

[JimmyJ]

Hey all - I have been looking at exploded views among multiple sites however am unable to figure out what this specific part is.  I have attached an image with the part pointed out with a red arrow...  Every exploded view has this item without a number/identification so I am unsure what it is!  Mine appears that the rubber is pretty shot so I was looking to replace it.  If anyone has any idea, I would appreciate a part number or any information greatly!

[flybox1]

It looks like the press-fit piece that mates to the hard pipe brake line fitting to create a seal. . .

[Davez134]

It looks like the press-fit piece that mates to the hard pipe brake line fitting to create a seal. . .

Correct. It is a metal pressed in piece with a taper that fits the hard line. (I'm not sure what rubber the op was referring to) it doesn't have a part number because it's not sold as a replacement piece, and it should not wear. (Unless someone tried to remove it and damaged the surface)

[JimmyJ]

It looks like the press-fit piece that mates to the hard pipe brake line fitting to create a seal. . .

Correct. It is a metal pressed in piece with a taper that fits the hard line. (I'm not sure what rubber the op was referring to) it doesn't have a part number because it's not sold as a replacement piece, and it should not wear. (Unless someone tried to remove it and damaged the surface)

Thank you both for the reply.  I'll have to take a closer look at it when I am home this evening.  When I was looking at it from the top, you could see the circular meeting point and it tapers down however the area around the tapered edge appears to have some sort of rubber or compound around it hence why I started looking at exploded views.

If it still doesn't look right this evening, I'll see if I can snap an up close picture for reference. Thanks again for the information!

[flybox1]

The compound might be some plumbers putty. It should be thoroughly cleaned out or it can get in the way of a good seal.
The piece can be removed by gently threading in a sheet metal screw, pulled out, and threads adequately cleaned before it is bled.
Yellow pipe tape can be used if needed, but if its cleaned well, it should seal.

[Rookster]

Here is a picture of it out of the caliper.



It has to be removed and placed in the bleed hole when you do a dual disk conversion.

Scott