Valve Seal Tool
- Thread starter Yorkie
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Never use a Norton intake valve guide seal . JS Motorsports provide Teflon ones that are the cat's meow . Enjoy .
marshg246
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I don't know "Ludwig's method". I've used the old car method of a sparkplug adapter and air and I've used rope through the sparkplug hole. In either case, I take the stud out since there's so little room to work, as well as the rocker.
Yorkie
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How did you go about holding the valve up?
Thanks,Mike
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Thanks for sharing.
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The seals can slip off due to the valve guide grooves not being machined deep enough.
Did you fit non genuine guides when refurbishing the head?
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Some years ago, I posted a tutorial how to do it with the help of 2 easy to make tools:
I made a few sets to give away (all gone)
upload picture
Slide it in the plug hole, lip towards valve, nut fingertight.. done:
Neater and much faster than the old rope trick.
Valve spring compressor:
( exhaust valve for demo)
Also: It is not necessary to completely remove the rocker, which again speeds up the job.
I made a few sets to give away (all gone)
upload pictureSlide it in the plug hole, lip towards valve, nut fingertight.. done:
Neater and much faster than the old rope trick.
Valve spring compressor:
( exhaust valve for demo)
Also: It is not necessary to completely remove the rocker, which again speeds up the job.
Last edited:
Yorkie
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The guides came from Andover Norton. The issue was probably down to me and not AN’s part. All is good now and not a puff of smoke anymore.
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Hi Ludwig, what about making some more kits up ….put me down for oneSome years ago, I posted a tutorial how to do it with the help of 2 easy to make tools:
I made a few sets to give away (all gone)
Slide it in the plug hole, lip towards valve, nut fingertight.. done:
Neater and much faster than the old rope trick.
Valve spring compressor:
( exhaust valve for demo)
Also: It is not necessary to completely remove the rocker, which again speeds up the job.
Saber
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How is the top of the compressor anchored on the bike?Some years ago, I posted a tutorial how to do it with the help of 2 easy to make tools:
I made a few sets to give away (all gone)
Slide it in the plug hole, lip towards valve, nut fingertight.. done:
Neater and much faster than the old rope trick.
Valve spring compressor:
( exhaust valve for demo)
Also: It is not necessary to completely remove the rocker, which again speeds up the job.
How do you access the seal after the above step? (I searched for the original thread but couldnt find it).
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It is not.
It is screwed in the rocker.
So once you've screwed down the springs you can remove the collets then the the little compressor from the rocker and extract the springs whilst keeping the valve in place?
Tornado
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A link to a post with an attached document with Ludwig's method procedure:
Replacing Valve Stem Seals (in situ) Pitfalls?
Given the obvious signs of valve stem seal leakage and oil consumption. I think the logical first step is replacing the stem seals and see what happens. https://www.accessnorton.com/NortonCommando/where-is-all-the-oil-going.35053/ I ordered new valve stem seals As well as a rocker shaft...
www.accessnorton.com
I could not find locally the required thread for rocker arm head in suitable length to make the tool.
Ludwig sent me his tool and it worked fine.
Btw, I've never used the special slide hammer to remove spindles. I use my sparkplug box wrench to sit over the spindle opening on head, some washers, nuts and suitable length of all thread rod into end of spindle to withdraw it, after heating head.
Last edited:
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Rocker spindle removal has been a long time back , but remember using a rear axle adjuster screwed in and pulling out of the hot head . I suffer from C.R.S. nowadays .A link to a post with an attached document with Ludwig's method procedure:
Replacing Valve Stem Seals (in situ) Pitfalls?
Given the obvious signs of valve stem seal leakage and oil consumption. I think the logical first step is replacing the stem seals and see what happens. https://www.accessnorton.com/NortonCommando/where-is-all-the-oil-going.35053/ I ordered new valve stem seals As well as a rocker shaft...
I could not find locally the required thread for rocker arm head in suitable length to make the tool.
Ludwig sent me his tool and it worked fine.
Btw, I've never used the special slide hammer to remove spindles. I use my sparkplug box wrench to sit over the spindle opening on head, some washers, nuts and suitable length of all thread rod into end of spindle to withdraw it, after heating head.
Yorkie
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That’s what i used. I have a spare one just for that purpose
Tornado
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Can't recall the thread type and size but I just used a bit of all thread I had on my bench to withdraw the spindles as I described above. The rocker head adjuster is the odd thread type....cycle thread I believe.
