Valve guide size

  • bromz
  • bromz's Avatar Topic Author
  • Offline
  • User
  • User
    Registered
  • 1981 kz1000 csr
  • Posts: 227
  • Thanks: 2

Valve guide size

30 Mar 2016 17:05
#718348
I removed my worn valve guide and bought a standard to replace it. Slides right in! So I ordered a .002 and .004 oversized same thing. Where do I go from here?

Please Log in or Create an account to join the conversation.

  • SWest
  • SWest's Avatar
  • Offline
  • Sustaining Member
  • Sustaining Member
    Registered
  • 10 22 2014
  • Posts: 23779
  • Thanks: 3045

Re: Valve guide size

30 Mar 2016 17:33
#718356
Did metal come out with it?
www.kzzone.com/valves.html
They have a larger size.
In the day I had a friend knerl a valve guide on his lathe. Metal came out with the old one. It worked well.
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229
The following user(s) said Thank You: Nessism

Please Log in or Create an account to join the conversation.

  • bromz
  • bromz's Avatar Topic Author
  • Offline
  • User
  • User
    Registered
  • 1981 kz1000 csr
  • Posts: 227
  • Thanks: 2

Re: Valve guide size

30 Mar 2016 17:55
#718368
I have access to a machine shop if they are willing to do it. worked ok? metal had to of come out cause I couldn't get all the carbon off.

Please Log in or Create an account to join the conversation.

  • PLUMMEN
  • PLUMMEN's Avatar
  • Offline
  • User
  • User
    Registered
  • Posts: 7983
  • Thanks: 104

Re: Valve guide size

30 Mar 2016 17:57
#718369
Thats why you should glass bead the combustion chambers/ports to get all of the carbon out of there first. ;)
Still recovering,some days are better than others.

Please Log in or Create an account to join the conversation.

  • bromz
  • bromz's Avatar Topic Author
  • Offline
  • User
  • User
    Registered
  • 1981 kz1000 csr
  • Posts: 227
  • Thanks: 2

Re: Valve guide size

30 Mar 2016 17:58
#718370
also the one I see on kzzone.com is .004 that's the biggest I see

Please Log in or Create an account to join the conversation.

  • PLUMMEN
  • PLUMMEN's Avatar
  • Offline
  • User
  • User
    Registered
  • Posts: 7983
  • Thanks: 104

Re: Valve guide size

30 Mar 2016 17:59
#718371
swest wrote: Did metal come out with it?
www.kzzone.com/valves.html
They have a larger size.
In the day I had a friend knerl a valve guide on his lathe. Metal came out with the old one. It worked well.
Steve
Knurling the inside of guides to take the slop out used to be a common thing,Ive never seen it done on the outside :laugh:
Still recovering,some days are better than others.

Please Log in or Create an account to join the conversation.

  • SWest
  • SWest's Avatar
  • Offline
  • Sustaining Member
  • Sustaining Member
    Registered
  • 10 22 2014
  • Posts: 23779
  • Thanks: 3045

Re: Valve guide size

30 Mar 2016 18:05
#718374
It worked like a charm. Barry of Handy Cycles was old school. I learned a lot from him.
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229
The following user(s) said Thank You: PLUMMEN

Please Log in or Create an account to join the conversation.

  • Nessism
  • Nessism's Avatar
  • Offline
  • Sustaining Member
  • Sustaining Member
    Registered
  • Posts: 8205
  • Thanks: 3577

Re: Valve guide size

30 Mar 2016 18:32
#718386
Look further down the page at APE. They sell some bronze guides they label as "repair" guides that are .502". I presume you use a .500 reamer for those. Call APE and ask.
Ed
Carb O-ring Kits : www.kzrider.com/forum/14-vendor-forum/62...rburetor-o-ring-kits

www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know

1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread
The following user(s) said Thank You: PLUMMEN

Please Log in or Create an account to join the conversation.

  • SWest
  • SWest's Avatar
  • Offline
  • Sustaining Member
  • Sustaining Member
    Registered
  • 10 22 2014
  • Posts: 23779
  • Thanks: 3045

Re: Valve guide size

30 Mar 2016 18:37
#718388
Yup, that's why I posted the link. It will have to be professionally done anyway.
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

Please Log in or Create an account to join the conversation.

  • bromz
  • bromz's Avatar Topic Author
  • Offline
  • User
  • User
    Registered
  • 1981 kz1000 csr
  • Posts: 227
  • Thanks: 2

Re: Valve guide size

30 Mar 2016 18:45
#718391
how much bigger is a .502 than original? why cant I just put oversized guide in and lap the vavle?

Please Log in or Create an account to join the conversation.

  • SWest
  • SWest's Avatar
  • Offline
  • Sustaining Member
  • Sustaining Member
    Registered
  • 10 22 2014
  • Posts: 23779
  • Thanks: 3045

Re: Valve guide size

30 Mar 2016 18:55
#718394
Call them and ask. I wouldn't be comfortable doing that myself.
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

Please Log in or Create an account to join the conversation.

  • bromz
  • bromz's Avatar Topic Author
  • Offline
  • User
  • User
    Registered
  • 1981 kz1000 csr
  • Posts: 227
  • Thanks: 2

Re: Valve guide size

30 Mar 2016 19:11
#718399
I will see tomorrow if the machinist can knurl the outside of it and see if that gets me there. If not its off to the professionals.

Please Log in or Create an account to join the conversation.

Moderators: Street Fighter LTD
Powered by Kunena Forum