« previous next »
Pages: [1]   Go Down

Author Topic: Do I need this part in my front brake?  (Read 930 times)

0 Members and 1 Guest are viewing this topic.

Offline winkster2005

  • Full Member
  • *
  • Posts: 48
Do I need this part in my front brake?
« on: April 15, 2016, 04:26:58 AM »
Hi everyone, I bought a new front caliper piston and it does not have a cap over the hollow cavity.  My original piston does.  If I do need this part could I just  pop it off my old piston and tap it onto the new one?
Logged

Offline 70CB750

  • Labor omnia vincit improbus.
  • Really Old Timer ...
  • *******
  • Posts: 14,817
  • Northern Virginia
Re: Do I need this part in my front brake?
« Reply #1 on: April 15, 2016, 05:20:18 AM »
Yes. And you need the cap.
Logged
Prokop
_______________
Pure Gas - find ethanol free gas station near you

I love it when parts come together.

Dorothy - my CB750
CB750K3F - The Red
Sidecar


CB900C

2006 KLR650

Offline winkster2005

  • Full Member
  • *
  • Posts: 48
Re: Do I need this part in my front brake?
« Reply #2 on: April 15, 2016, 06:19:32 AM »
That's what I figured, thanks!
Logged

Offline alacrity

  • Expert
  • ****
  • Posts: 928
  • Ride, Optimize, Repeat
Re: Do I need this part in my front brake?
« Reply #3 on: April 15, 2016, 02:02:03 PM »
cap?
Logged
I recently restored and sold a 77 cb750f, and am nearly finished with a (former basket case) cb750k5.  This is a place to share, learn and enjoy.  I am grateful to and for 99+% of this site's membership.

Offline flybox1

  • My wife thinks I'm a
  • Really Old Timer ...
  • *******
  • Posts: 14,289
Re: Do I need this part in my front brake?
« Reply #4 on: April 15, 2016, 02:05:16 PM »
its a small dome cap that fits over the hollow of the caliper piston. 
allows for some rocking of the brake pad for flush rotor contact
Logged
'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
77/78 cool 2 member #3
"Knowledge without mileage equals bullsh!t" - Henry Rollins

"This is my CB. There are many like it, but this one is mine…"

Offline alacrity

  • Expert
  • ****
  • Posts: 928
  • Ride, Optimize, Repeat
Re: Do I need this part in my front brake?
« Reply #5 on: April 15, 2016, 02:52:08 PM »
Oh... wait ok. is that for the 750 only?
Because I have never seen one on a 500 or 550
Logged
I recently restored and sold a 77 cb750f, and am nearly finished with a (former basket case) cb750k5.  This is a place to share, learn and enjoy.  I am grateful to and for 99+% of this site's membership.

Offline flybox1

  • My wife thinks I'm a
  • Really Old Timer ...
  • *******
  • Posts: 14,289
Re: Do I need this part in my front brake?
« Reply #6 on: April 15, 2016, 02:58:19 PM »
Quote from: alacrity on April 15, 2016, 02:52:08 PM
Oh... wait ok. is that for the 750 only?
Because I have never seen one on a 500 or 550
Not all had it. I know the 550F2's didnt. 
Cant say about the others without looking at the fiches.
Logged
'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
77/78 cool 2 member #3
"Knowledge without mileage equals bullsh!t" - Henry Rollins

"This is my CB. There are many like it, but this one is mine…"
Pages: [1]   Go Up
« previous next »