1938 model 18 Oil issue

Do you think this could be a wet sumping idea.?

I'm sure there should be feed from the tank through the filter , Down the elbow into the crank case.

I'm thinking someone has made up a ball bearing Sat on top of a spring That sits in the union Out of the tank.

The pump would pull the oil through and when the engine is off, the ball bearing sits down and stops any oil movement.

What are your thoughts, chaps?

Absolutely and totally agree now so thank you David.

I have some other major issues with it, so going to have to standby for the time being:((

Ok thanks so much chaps, I did actually remove it as I couldn't guarantee the spring was going to compress under suction and let the oil through so I played the safe game for the time being.

also, 24 hours later I wanted to check on how much it wet sumps.  Luckily, not so much came out! So I think I'm okay there.

The other issues I have is the doll head gearbox was very hard to get the right gear and neutral, So I decided to pop the front off the gearbox and have a look as there was quite a lot of play in the rods and associated levers.

I'm really glad I did that because I found some loose nuts and bolts, but the gears and gear cluster is in brilliant condition as is the cam plate.

I've attached some pictures for interest:)))

In number one, you can clearly see the lever arm bolt has come loose, Thank goodness it was that simple:))). Now I need to work on Rod with two clevis on the end.  It looks like the original pins which I somehow want to retain, but they are worn 30% I would guess

Hi chaps, I hope you don't mind me asking all the silly questions as I'm relatively new to Norton. Well actually it's my first Norton.:)))

I think you know the saga it was supposed to be mint and perfect, but I have found a few issues.

I have some questions and I wonder if they would be an expert who could answer me. hopefully:)))

Thank you for the responses reference the oil supply. I took out the ball and spring and fed straight to the crank case.... I was worried about wet sump, but there wasn't a lot of oil that came out of the sump after a quick run so I'm okay with that.

Next question does decompression spring look correct? Should it be the normal type?

On the primary chain case, do you bond the rubber band around the case to stop the oil pouring out?

with the piston at bottom dead centre should there be any play putting a spanner on the crank case sprocket?
Using a spanner, there is approximately two mil of movement,  OR Will the oil supply with the engine running fill that gap?.

I will attach photos of each component i need a little bit of help with:))

Many thanks again again

Oooh Michael, lovely machine that!  I'm thinking that doesn't really hang around and handle rather splendidly!!

So what I did was to shim it out but leaving a little bit of movement taking into account of the right angles to each other and on the Work bench it seems to select very nicely with very little wear now.

And another question folks.

I've taken apart the clutch unit and I have a few questions again:))

It's a phosphor bronze coating on the clutch drum. Is this normal?

Is the clutch band designed to keep oil out of the clutch plates as probably fitted with Cork and I know that it didn't go well with that type of friction?

If I put friction plates in, am I right in thinking this will work well without oil in the primary drive and run a dry system?

It looks like an atlas clutch or a 16 H clutch which I believe are the same?

it's running for friction plates plus the brake pad material in the clutch hub..

Does this sound okay?

cheers