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Oil line to the rockers.

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Oil line to the rockers.

Posted by john_neely at November 19. 2018

Just running the black plastic oil lines to the rockers.

When i removed it, it came out of the timing case at 90° ran through the first engine plate and swung up to the timing side rocker connection leaving a single connection to loop over the head to bolt into the drive side, complete with kink in the line.

When i run the new line in if I make the same run it looks awful,  it wants to run to the drive side and then over to the timing side.

I assume there is a reason for going to the timing side first?

Re: Oil line to the rockers.

Posted by dave_taylor at November 28. 2018

Previously john_neely wrote:

Just running the black plastic oil lines to the rockers.

When i removed it, it came out of the timing case at 90° ran through the first engine plate and swung up to the timing side rocker connection leaving a single connection to loop over the head to bolt into the drive side, complete with kink in the line.

When i run the new line in if I make the same run it looks awful,  it wants to run to the drive side and then over to the timing side.

I assume there is a reason for going to the timing side first?

I think I know what you mean.

I don't think it matters what side the feed goes to first as long as there is a good oil supply.

Dave

Re: Oil line to the rockers.

Posted by ian_soady at November 29. 2018

Mine went to the drive side first and looked tidier there.

Re: Oil line to the rockers.

Posted by john_neely at December 01. 2018

Thanks for the advice, i spent a lot of time on the phone and computer and was given lots of different routes.

I believe the correct run is out of the timing cover and across to the engine cradle (not into it) turn up  the side of the cradle to the head the tube is now gently forced up to the timing side rocker, the oil line has an outer cover to protect against rubbing, as you come up there is a grommet on the oil line (always wondered what it was for) which fits into a wire bracket bolted to the carb and holds the whole thing in a nice loop.

Thanks to Les Emery for the information.

Can picture it as just fitted.

Re: Oil line to the rockers.

Posted by colin_peterson at December 01. 2018

From this, and my own memory, I suspect Mr Emery may be wrong about where that clip lives …? And, on my Commando, the rocker oil feed passes from its timing-side attachment through the right-hand side of the engine/gearbox cradle – in front of the gearbox – up between the carbs and then up to the timing side of the cylinder head. It has done since I bought the bike, although that's no guarantee of correctness. I note that the illustration in the factory manual (Fig. C29) shows the rocker feed taking a completely different route at its bottom end, but it looks rather improbable to me.

Re: Oil line to the rockers.

Posted by john_neely at December 02. 2018

Interesting so where is the clip located?

Re: Oil line to the rockers.

Posted by colin_peterson at December 02. 2018

Previously john_neely wrote:

Interesting so where is the clip located?

Well I and one other on this forum decided in the older thread linked in my previous post that it attaches to the timing-side, triangular head-steady plate. Specifically, it fits under the the bottom rear nut and washer. At the time I found an image on Google, but looking again this time I found a thread about the same question, including a photo, at Access Norton: https://www.accessnorton.com/NortonCommando/what-is-this-where-does-it-go-please.21606/

HTH

Colin

Re: Oil line to the rockers.

Posted by john_neely at December 02. 2018

Colin thanks for that a very interesting read and looks better in that location.

To use it as a front fork hydraulic line tidy was a good idea.

Re: Oil line to the rockers.

Posted by ian_soady at December 02. 2018

I see that goes between the carb manifolds. I had a single carb on mine which may be why it fitted better the "wrong" way round.

Re: Oil line to the rockers.

Posted by colin_peterson at December 02. 2018

Previously john_neely wrote:

Colin thanks for that a very interesting read and looks better in that location.

To use it as a front fork hydraulic line tidy was a good idea.

To be honest, I don't see how the clip could be bolted by the carburettors and fit, without bending; and, attached to the headsteady, it controls the 'hang' of the oil feed line, which it couldn't do by the carbs. I wonder how Mr Emery bodges that. Ahem … On the other hand, I have one of his head steadies, and my clip has remained unused for almost all the 20 years I've had the bike because there's no longer any obvious way of attaching it – I can't say it's made any difference.

About using the same clip to tidy the front brake hydraulic line, I've changed the hose to Goodridge braided but kept the original clip. I cut a sort of shim from an old inner tube to fit between the hose and the clip, it's been there donkeys years with no glue, and I think it looks nicer. In that Access Norton thread, I notice Dave Comeau regards using braided hose for the rocker oil feed as 'degrading' – in my ignorance I tend to agree, mainly for aesthetic reasons, but each to their own. For the front brake, though, I think anything that helps you stop better is good.

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