« previous next »
Pages: [1]   Go Down

Author Topic: CB550 Oil Pump Mystery Pin  (Read 1073 times)

0 Members and 1 Guest are viewing this topic.

CU2151

  • Guest
CB550 Oil Pump Mystery Pin
« on: January 20, 2009, 06:28:50 PM »
So just when I was getting comfortable working on my '75 CB550 I do something like this.  I was rebuilding the oil pump due to the usual leaky o-ring and in the process, a small cylindrical pin fell into my oil pan (of course while I was looking elsewhere) and I have no idea where it came from.  I looked in the Clymer manual and it doesn't mention it anywhere.  Anyone have a clue where this could have come from?
Logged

Offline bwaller

  • Really Old Timer ...
  • *******
  • Posts: 7,449
Re: CB550 Oil Pump Mystery Pin
« Reply #1 on: January 20, 2009, 06:39:40 PM »
It locates the inner rotor to the pump shaft.
Logged

Offline jreich

  • Enthusiast
  • **
  • Posts: 196
Re: CB550 Oil Pump Mystery Pin
« Reply #2 on: January 20, 2009, 06:43:05 PM »
It goes through the shaft inside the pump. The small rotor that turns inside the pump fits down over the shaft and the pin. The pin holds this rotor in place....give it some time...you'll be able to figure it out
Logged

CU2151

  • Guest
Re: CB550 Oil Pump Mystery Pin
« Reply #3 on: January 20, 2009, 06:44:42 PM »
Thanks for the help!!
Logged

Offline jreich

  • Enthusiast
  • **
  • Posts: 196
Re: CB550 Oil Pump Mystery Pin
« Reply #4 on: January 20, 2009, 06:45:10 PM »
Quote from: bwaller on January 20, 2009, 06:39:40 PM
It locates the inner rotor to the pump shaft.
Right.... What he said!!
Logged

Offline crazypj

  • I'm brill, me
  • Old Timer
  • ******
  • Posts: 4,468
  • first 100,000 miles. 1977 CB550F
Re: CB550 Oil Pump Mystery Pin
« Reply #5 on: January 20, 2009, 10:09:11 PM »
The pump don't turn without it.
Pull inner rotor off and you can see the recess it fits into
PJ
Logged
I fake being smart pretty good
'you can take my word for it or argue until you find out I'm right'
Pages: [1]   Go Up
« previous next »