« previous next »
Pages: [1]   Go Down

Author Topic: What are these 4 copper rings in the gasket kit for?  (Read 1163 times)

0 Members and 1 Guest are viewing this topic.

Offline stevenmgrr

  • Enthusiast
  • **
  • Posts: 164
What are these 4 copper rings in the gasket kit for?
« on: April 25, 2009, 10:45:05 AM »
I just recently purchased an engine gasket kit for my '71 CB500 and the kit has 4 copper rings, each about 1 1/4 inches in diameter.  Can anyone tell me what these are for?

Thanks
Logged
'71 CB500 K0

Online Kevin D

  • Old Timer
  • ******
  • Posts: 2,875
  • SE Michigan
Re: What are these 4 copper rings in the gasket kit for?
« Reply #1 on: April 25, 2009, 10:52:18 AM »
Exhaust to head joint
« Last Edit: April 25, 2009, 10:55:19 AM by Kevin D »
Logged
71 CB750 K1
104,000 miles
Original Owner
———past———
70 SL100/125/150
70 Candy BlueGreen CB 750 K0
————————————————-
Former Honda parts kid/counter kid/do all
—————————————————————-
Whether you think you can or think you can’t, you’re right
Genius is 99% perspiration, 1% inspiration

Offline stevenmgrr

  • Enthusiast
  • **
  • Posts: 164
Re: What are these 4 copper rings in the gasket kit for?
« Reply #2 on: April 25, 2009, 10:54:52 AM »
Quote from: Kevin D on April 25, 2009, 10:52:18 AM
Exhaust to head joint

Okay.  Can you tell me how to get the old ones out and how to install the new ones?

Thanks
Logged
'71 CB500 K0

Offline ev0lve

  • Master
  • *****
  • Posts: 1,930
Re: What are these 4 copper rings in the gasket kit for?
« Reply #3 on: April 25, 2009, 11:01:12 AM »
If you've got a dental pick or something like it just prize them out of there trying not to scratch the exhaust walls.

Installing is just slipping them in there. They're kind of concave so may not be slip and slide but they're going to get crushed anyways so just get them bottomed and then the exhaust tightened on top.

If you hear a ticking when running afterwards it may be an exhaust leak so tighten down more or replace. I haven't had that pleasure... yet  ;D
Logged

Online Kevin D

  • Old Timer
  • ******
  • Posts: 2,875
  • SE Michigan
Re: What are these 4 copper rings in the gasket kit for?
« Reply #4 on: April 25, 2009, 11:03:07 AM »
Just lever the old ones out with a small screwdriver and lay the new ones in their place. The new ones will flatten out when you draw up on the exhaust flanges. After you tighten down on them you might want to recheck the nuts again later.

Glad I got my ride in this morning - nasty storm on the radar coming this way! I hope youre working inside.
Logged
71 CB750 K1
104,000 miles
Original Owner
———past———
70 SL100/125/150
70 Candy BlueGreen CB 750 K0
————————————————-
Former Honda parts kid/counter kid/do all
—————————————————————-
Whether you think you can or think you can’t, you’re right
Genius is 99% perspiration, 1% inspiration

Offline Johnie

  • Really Old Timer ...
  • *******
  • Posts: 8,609
Re: What are these 4 copper rings in the gasket kit for?
« Reply #5 on: April 25, 2009, 11:04:16 AM »
Here is a pic of what they look like installed...click on the pic to enlarge.
Logged
1970 CB750K0 - Candy Ruby Red
1973 CB750K3 - Candy Bacchus Olive or Sunflake Orange
1970 Chevy Chevelle SS396 - Cortez Silver
1976 GL1000 Sulphur Yellow

Oshkosh, WI  USA

Offline stevenmgrr

  • Enthusiast
  • **
  • Posts: 164
Re: What are these 4 copper rings in the gasket kit for?
« Reply #6 on: April 25, 2009, 11:12:16 AM »
Thanks for the quick responses guys!
Logged
'71 CB500 K0

Offline Burnboy

  • Hot Shot
  • ***
  • Posts: 458
Re: What are these 4 copper rings in the gasket kit for?
« Reply #7 on: April 25, 2009, 12:48:18 PM »
thats good to know. I thought you had to take the 2 large screws on the exhaust flange off to put them in so I just didnt fool with them. Looks like another part my bike is missing. damn previous owner! haha
Logged
1975 CB750
1973 CB350F

Offline Johnie

  • Really Old Timer ...
  • *******
  • Posts: 8,609
Re: What are these 4 copper rings in the gasket kit for?
« Reply #8 on: April 25, 2009, 01:10:02 PM »
Quote from: Burnboy on April 25, 2009, 12:48:18 PM
thats good to know. I thought you had to take the 2 large screws on the exhaust flange off to put them in so I just didnt fool with them. Looks like another part my bike is missing. damn previous owner! haha

You are correct...you do have to take those exhaust flanges off to get to the muffler gaskets.  You will probably need a impact wrench to get the large screws out.  Here is a picture after I had the gaskets installed and the flanges back on.
Logged
1970 CB750K0 - Candy Ruby Red
1973 CB750K3 - Candy Bacchus Olive or Sunflake Orange
1970 Chevy Chevelle SS396 - Cortez Silver
1976 GL1000 Sulphur Yellow

Oshkosh, WI  USA

Offline Toxic

  • Expert
  • ****
  • Posts: 1,200
Re: What are these 4 copper rings in the gasket kit for?
« Reply #9 on: April 25, 2009, 02:06:10 PM »
use a little blob of grease on the copper to hold them in place while you instal the pipes
Logged
Pages: [1]   Go Up
« previous next »