Vintage and Classic Hondas

Source For New Valve Guides?

classic Classic list List threaded Threaded
♦
♦
 8 messages Options
TheLastJoker
Reply | Threaded
Open this post in threaded view
♦
♦
|

Source For New Valve Guides?

TheLastJoker
This post was updated on .
Well this is the first real bit of bad news during my rebuild.  In the process of replacing the valve guide seals, I found one of the exhaust valves with excessive play (about .6-.7mm from what I can tell).  This is on the #4 cylinder.  The #1 exhaust valve has slightly less play.  I'm assuming they should both be as tight as my intake valves with no perceptible play?  Has anyone here had to replace the guides? If so, where can they be found? I don't see them on my usual spare parts sites.  Or is this something that a machine shop would have? Thanks!
IMG_0977
1978 CB750F Super Sport
TOOLS1
Reply | Threaded
Open this post in threaded view
♦
♦
|

Re: Source For New Valve Guides?

TOOLS1
Administrator
I would just have a machine shop do it myself. Cycle-x has new guides.
TOOLS
Life is not about the number of breaths, you take, but the moments that take your breath away.
I don't have an anger problem. I have an idiot problem. Hank Hill
Never confuse education for intelligence.
Happiness is a belt fed weapon.
I just can't imagine what could go wrong.
No fire? No explosions? So whats the point of your story?
Those who are too smart to engage in politics are punished by being governed by those who are dumber. ~Plato
It couldn't be done, but the darn fool didn't know it, and did it anyway.
We all got problems. Ksharp
I like vintage bikes because they take me away from the clutter of technology that I work with everyday and back to a simpler time of mechanical elegance and simplicity.. "ninadm"
Darkwing Duck: The worst part of public transportation is the Public.
"That is awesome shit there" Re-Run
"Fear nothing, attack everything" Eric Berry
" Oh, you read that on the internet? Clearly it IS a massive problem. Of course it CAN’t be normal operation."

1976 CB 750-A X 2
1977 CB 750-A X 4
1977 CB 750-K
1976 CB 750 F
1981 CB 750
1966 Kawasaki SG 250
1981 KZ 750 LTD
1973 CB 350
1979 CM 185 Twinstar
1982 Honda XL 80
South of Eden (Kansas City MO)
TheLastJoker
Reply | Threaded
Open this post in threaded view
♦
♦
|

Re: Source For New Valve Guides?

TheLastJoker
Do most machine shops have valve guides, or should I order them ahead of time and bring them in with me?
1978 CB750F Super Sport
TOOLS1
Reply | Threaded
Open this post in threaded view
♦
♦
|

Re: Source For New Valve Guides?

TOOLS1
Administrator
Some machine shops can source them, I would ask them before ordering them.
TOOLS
Life is not about the number of breaths, you take, but the moments that take your breath away.
I don't have an anger problem. I have an idiot problem. Hank Hill
Never confuse education for intelligence.
Happiness is a belt fed weapon.
I just can't imagine what could go wrong.
No fire? No explosions? So whats the point of your story?
Those who are too smart to engage in politics are punished by being governed by those who are dumber. ~Plato
It couldn't be done, but the darn fool didn't know it, and did it anyway.
We all got problems. Ksharp
I like vintage bikes because they take me away from the clutter of technology that I work with everyday and back to a simpler time of mechanical elegance and simplicity.. "ninadm"
Darkwing Duck: The worst part of public transportation is the Public.
"That is awesome shit there" Re-Run
"Fear nothing, attack everything" Eric Berry
" Oh, you read that on the internet? Clearly it IS a massive problem. Of course it CAN’t be normal operation."

1976 CB 750-A X 2
1977 CB 750-A X 4
1977 CB 750-K
1976 CB 750 F
1981 CB 750
1966 Kawasaki SG 250
1981 KZ 750 LTD
1973 CB 350
1979 CM 185 Twinstar
1982 Honda XL 80
South of Eden (Kansas City MO)
TheLastJoker
Reply | Threaded
Open this post in threaded view
♦
♦
|

Re: Source For New Valve Guides?

TheLastJoker
Thanks Tools! One other thing, do you know if the head bolts are torque to yield (single use) or can they be reused?
1978 CB750F Super Sport
TOOLS1
Reply | Threaded
Open this post in threaded view
♦
♦
|

Re: Source For New Valve Guides?

TOOLS1
Administrator
They can be used again, and again.....
TOOLS
Life is not about the number of breaths, you take, but the moments that take your breath away.
I don't have an anger problem. I have an idiot problem. Hank Hill
Never confuse education for intelligence.
Happiness is a belt fed weapon.
I just can't imagine what could go wrong.
No fire? No explosions? So whats the point of your story?
Those who are too smart to engage in politics are punished by being governed by those who are dumber. ~Plato
It couldn't be done, but the darn fool didn't know it, and did it anyway.
We all got problems. Ksharp
I like vintage bikes because they take me away from the clutter of technology that I work with everyday and back to a simpler time of mechanical elegance and simplicity.. "ninadm"
Darkwing Duck: The worst part of public transportation is the Public.
"That is awesome shit there" Re-Run
"Fear nothing, attack everything" Eric Berry
" Oh, you read that on the internet? Clearly it IS a massive problem. Of course it CAN’t be normal operation."

1976 CB 750-A X 2
1977 CB 750-A X 4
1977 CB 750-K
1976 CB 750 F
1981 CB 750
1966 Kawasaki SG 250
1981 KZ 750 LTD
1973 CB 350
1979 CM 185 Twinstar
1982 Honda XL 80
South of Eden (Kansas City MO)
Rick7r
Reply | Threaded
Open this post in threaded view
♦
♦
|

Re: Source For New Valve Guides?

Rick7r
I'm trying to replace the valve guide as well on a k2 cb750, look at the manual, says to use oversize guides then ream them out. is that necessary? was looking to purchase a set of the kibblewhite cast iron. anyone has experience with these?
TOOLS1
Reply | Threaded
Open this post in threaded view
♦
♦
|

Re: Source For New Valve Guides?

TOOLS1
Administrator
Cycle-X has valve guides that do not need reaming.
TOOLS
Life is not about the number of breaths, you take, but the moments that take your breath away.
I don't have an anger problem. I have an idiot problem. Hank Hill
Never confuse education for intelligence.
Happiness is a belt fed weapon.
I just can't imagine what could go wrong.
No fire? No explosions? So whats the point of your story?
Those who are too smart to engage in politics are punished by being governed by those who are dumber. ~Plato
It couldn't be done, but the darn fool didn't know it, and did it anyway.
We all got problems. Ksharp
I like vintage bikes because they take me away from the clutter of technology that I work with everyday and back to a simpler time of mechanical elegance and simplicity.. "ninadm"
Darkwing Duck: The worst part of public transportation is the Public.
"That is awesome shit there" Re-Run
"Fear nothing, attack everything" Eric Berry
" Oh, you read that on the internet? Clearly it IS a massive problem. Of course it CAN’t be normal operation."

1976 CB 750-A X 2
1977 CB 750-A X 4
1977 CB 750-K
1976 CB 750 F
1981 CB 750
1966 Kawasaki SG 250
1981 KZ 750 LTD
1973 CB 350
1979 CM 185 Twinstar
1982 Honda XL 80
South of Eden (Kansas City MO)
Free forum by Nabble Edit this page