So it begins

Singles, twins and fours.
T.J.Falloon
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Re: So the resurrection begins

Postby T.J.Falloon » Thu May 23, 2019 9:55 am

Another few hours spent in the workshop this Arvo. Accomplished quite a bit. Very happy with what I have done.
Primary chain and gears off. Primary cover removed along with the dynamo.
Attachments
IMG_20190523_164959.jpg
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The pile of parts is growing.

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Bob.Murphy
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Re: So the resurrection begins

Postby Bob.Murphy » Thu May 23, 2019 10:01 am

Look at all that SPACE :o .

Give it time . . . I have a very large Garage/Workshop/Storeroom block but after 31 years its full of 'stuff' and I have no room to lay out anything :D .

You're getting there . . We're all waiting to see the cranks ;) .

Bob.
My avatar shows the late Len Rich in 1970 with the bike I now have - a 1958 Ariel VH

Gui.dorey
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Re: So the resurrection begins

Postby Gui.dorey » Thu May 23, 2019 10:29 am

T.J.Falloon wrote:Apparently this is done to help drain the oil away from the rocker assembly. I can only presume to stop oil potentially flooding the tappet area and maybe burning it.
I am sure there are more knowledgeable members out there than I who know exactly why it's done.


There is a recommended modification to help drain the oil away from the rockers and valves. However, on your rockers the cuts look like an attempt to do this, but not quite like the manual recommends. All four rockers should have it, though, and not just the outer ones.

Unbenannt.PNG

john.whiting
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Re: So it begins

Postby john.whiting » Thu May 23, 2019 11:07 am

I would much rather fit some modern spring loaded valve stem seals than carve pieces out of rare rockers.

Gui.dorey
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Re: So it begins

Postby Gui.dorey » Thu May 23, 2019 1:21 pm

Agree. Maybe they weren‘t so common in the 50‘s and that was the recommended solution back then. My rockers don‘t have it, but can‘t tell you if it‘s a problem or not - not enough mileage on her yet.

john.whiting
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Re: So it begins

Postby john.whiting » Fri May 24, 2019 4:01 am

Here is a question.....I recall some engine that had small spring steel clips pressed on the rockers to arrest oil flow to the valves.........The early Holden sixes had a extended valve cap ,with a thick o ring below the collets to stop oil flow.......but modern car OHC engines have a flood of oil over the valves arrested by the spring loaded seals.....and very effective too,just see the smoke when the seals wear out.

nevhunter
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Re: So it begins

Postby nevhunter » Fri May 24, 2019 5:32 am

Turbo engines need seals. The top web of the rocker is in compression and is not likely to break because of a chamfer, but I can't see how it will be effective. I know what it's trying to do. Why not just cut the oil pressure (flow) back.? Nev

will_curry
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Re: So it begins

Postby will_curry » Fri May 24, 2019 12:42 pm

Isn't it mostly rocker-box oil draining down that lubricates the cams and followers so
cutting the flow down might diminish the smoky exhaust but . . .

nevhunter
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Re: So it begins

Postby nevhunter » Fri May 24, 2019 3:11 pm

Possibly, but worn engines have periods of low oil pressure. Don't they get fling from the big ends? Nev

T.J.Falloon
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Re: So the resurrection begins

Postby T.J.Falloon » Sun May 26, 2019 10:42 am

Ok, so sorry about the delay in posting any new photos etc. Stupid work getting in the way again.
Anyway managed to get quite a bit done this Arvo.
So, so, soooooo pleased that I invested the time to research the marque and find out as much as I could about the bike by joining forums such as this.
Finally got the cases apart today.
Will let the photos tell the story.
Attachments
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