Vintage and Classic Hondas

broke o rings?

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sfaulk320
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broke o rings?

sfaulk320
Ok guys i seem to have a small problem i took my head apart on my 1977 cb750 k i tagged and bagged everything well what i thought was every thing.... i found two broke orings on my garage floor my bike has been the only project done in the garage so far and i cant seem to figure out where they go im gonna post a pic of the rings and a pic of the only place i can think they can go, any ideas will be greatly appreciated.
TOOLS1
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Re: broke o rings?

TOOLS1
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There are 4 6mm O-rings under the cam towers, 2 O-rings on the two rear inside studs between the head, and cylinder, and two on the same studs between the case, and cylinders.
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)
sfaulk320
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Re: broke o rings?

sfaulk320
In reply to this post by sfaulk320
I have the 4 under the cam towers i think i have the other 2 also idk if you can see in the pic

shinyribs
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Re: broke o rings?

shinyribs
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The four studs in the center should each have an o-ring. Pressurized oil comes up the two rear studs, and drains back down the two front studs.
sfaulk320
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Re: broke o rings?

sfaulk320
In reply to this post by sfaulk320
So this is correct then?

TOOLS1
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Re: broke o rings?

TOOLS1
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No, they go on the two center studs on the back row.
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)
sfaulk320
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Re: broke o rings?

sfaulk320
I have the o rings on there, i have looked every where i can think of, is there any where else on the bike that gets small o rings like that, i do not have the carbs apart so i figured they arent from there.
TOOLS1
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Re: broke o rings?

TOOLS1
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Between the cam towers, and the head.
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)
sfaulk320
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Re: broke o rings?

sfaulk320
These are the o ring i have
TOOLS1
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Re: broke o rings?

TOOLS1
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Yea, that's where 4 of them go.
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)
shinyribs
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Re: broke o rings?

shinyribs
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It's a good time to pull those oil restrictors oil and clean them. Looks like a little jet under your center two o-rings on your head there.

And yeah, the larger o-rings for the studs just go on the four,center studs that surround the cam chain passage.
shinyribs
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Re: broke o rings?

shinyribs
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The broke o-ring you found, does it match any of the o-rings in the engine? What size is it? Maybe your drive chain spat one out. It's been known to happen.

I found some random o-rings on the floor one day, and later on the was another stuck to my swingarm. Ended being out of my chain. Just a thought.
sfaulk320
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Re: broke o rings?

sfaulk320
In reply to this post by shinyribs
It doesnt match anything in side the motor the size idk they are a tad bigger then the ones under the cam towers, and i did find one of the rings while i was cleaning the back where the drive chain hooks up to the engine sorry i dont know all the right terms for the parts this is the first engine i have ever worked on but im getting there, if i inspect the chain will i see where it may have came from?
shinyribs
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Re: broke o rings?

shinyribs
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A tad bigger than the ones under the cam towers sounds about right for a drive chain o-ring. You'll just have to look in between the plates to see if there are any missing. It's pretty easy to spot.
sfaulk320
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Re: broke o rings?

sfaulk320
You guys are awesome as always, id be stuck trying to figure all this stuff out with out yous.
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