front brake switch

I purchased two of these switches from SNG Barrett after suffering multiple failures on my car and bike. Both switches came with 1/8”-27 NPT unfortunately. However I ran a 3/8”-24 UNF-die down both of them and the threads look pretty decent. Both fitted now, time will tell.
I bought a switch from sig Barrett and threads are too big for norton. I 'am going to try and run a die over it and reduce it to fit my norton. What size die do I need for the norton ?
 
OK, so here is the results of the SNG Barratt front hydraulic brake switch that I bought for my MK-3. First of all, the threaded end is too big, so I ran a 3/8-24 UNF die over it and it fit perfect. I have tested it extensively and it works perfect. Hear is some advice to others that are having switch failures, don't be like me and keep buying a switch made by Lucus. I bought three Lucus switches and they all failed in a very short time. Save yourself a lot of aggravation and money and buy one from SNG or another recommended brand.
 
SNG are Lucas license holders for Automotive ? the correct 34619 UNF switch may be the same as you have tried already
 
SNG are Lucas license holders for Automotive ?
No, and they don't need to as long as they do not stamp Lucas on the part or put it in a Lucas box.

This company can


which as it covers Motorcycles and as Wassells have the Licence for Lucas motorcycle parts must mean Wassells have expanded into Automotive.
 
No, and they don't need to as long as they do not stamp Lucas on the part or put it in a Lucas box.

This company can


which as it covers Motorcycles and as Wassells have the Licence for Lucas motorcycle parts must mean Wassells have expanded into Automotive.
SNG might be a license holder for Lucus but with my own experience with failed Lucus stamped switches the SNG switches are far more superior. Like I said before, I went through three failed Lucus stamped switches having one fail while bleeding the system! The SNG has held up under extensive testing. :) :)
 
LUCAS have more than one automotive license holder four UK based companies are licensed to sell specific Lucas automotive products in to the supply chain


 
Aftermarket rules in the UK allow any part to be manufactured by any company. What they cannot do is use trademarks owned by another company.

So when I worked for a company, that made Ford parts for Ford OEM, to supply the aftermarket we went to a Ford dealer and bought the parts we had made in a Ford box. This box was given to an engineer and he made a new drawing with our Aftermarket logo and the drawing, part and receipt for the part purchase in a safe. When Ford audited the factory they always saw their OEM parts and Aftermarket parts on the same line. If they objected then they were taken to the safe and shown the drawing, part and purchase receipt.

If that was not the case you could only ever buy parts from your main dealer, which is not true.
 
Aftermarket rules in the UK allow any part to be manufactured by any company. What they cannot do is use trademarks owned by another company.

So when I worked for a company, that made Ford parts for Ford OEM, to supply the aftermarket we went to a Ford dealer and bought the parts we had made in a Ford box. This box was given to an engineer and he made a new drawing with our Aftermarket logo and the drawing, part and receipt for the part purchase in a safe. When Ford audited the factory they always saw their OEM parts and Aftermarket parts on the same line. If they objected then they were taken to the safe and shown the drawing, part and purchase receipt.

If that was not the case you could only ever buy parts from your main dealer, which is not true.
Is that true for a patented part in the UK?
 
Aftermarket rules in the UK allow any part to be manufactured by any company. What they cannot do is use trademarks owned by another company.

So when I worked for a company, that made Ford parts for Ford OEM, to supply the aftermarket we went to a Ford dealer and bought the parts we had made in a Ford box. This box was given to an engineer and he made a new drawing with our Aftermarket logo and the drawing, part and receipt for the part purchase in a safe. When Ford audited the factory they always saw their OEM parts and Aftermarket parts on the same line. If they objected then they were taken to the safe and shown the drawing, part and purchase receipt.

If that was not the case you could only ever buy parts from your main dealer, which is not true.

So, the SNG switch could be manufactured by a company other than Lucus.
 
So, the SNG switch could be manufactured by a company other than Lucus.
Lucas do not make any of these old parts even for the companies like Wassells that can apply the Lucas trademark and stick their parts in a Green Box. Its a complete jumble and honestly the name Lucas now has no standing at all, if it did then the best hydraulic switches would be in a Green Lucas box. But the best switch is made for SNG by an unknown company, who may or may not also make then for someone else to stick in a Green Box, but at a lower cost without the SNG improvements and so they will fail.
 
Problem here is SNG do not make the HD switch in UNF thread form so unless you are willing to bodge the 27TPI / 28 TPI to fit your 24TPI master
i guess you need to consider the Lucas RED BOX or another brand of generic switch which is readily available
 
Problem here is SNG do not make the HD switch in UNF thread form so unless you are willing to bodge the 27TPI / 28 TPI to fit your 24TPI master
i guess you need to consider the Lucas RED BOX or another brand of generic switch which is readily available
Like I said before, I just ran a 3/8- 24UNF die over the SNG existing threads and the threads came out perfect. It took about five minutes and yes one can buy the Red Box Lucus and it might be a very good switch, but I already had the SNG switch. All I 'am saying is that some of the switches stamped Lucus are junk.
 
I have been tempted to shorter/modify the master cylinder casting and get rid of the brake switch. The hose would screw straight in the center of the casting, in line with the brake piston. This would solve the usual problem of the brake switch interfering with the handle bars.
I think it can be done by machining away the angular boss used to receive the brake switch, then cutting a thread to take the hose. A small amount of welding might be required to build up a boss to take the hose.
Flatter and shorter bars can then be used, and more options would be available as to where the brake lever ends up (horizontal, tipped forward, tipped back etc.)
I always use my rear brake when I use the front brake, so I don't think I am creating any safety issues.
Has anybody done this??
 
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There's a bit of mixing up UK 'intellectual property' law here.

A patent applies to an 'invention', not a 'part'. It must be "new or novel", it must have a use and it cannot be something that is obvious. A patent must be applied for prior to marketing. To be patented, a part would need to be something which is the first of its kind, a unique way of achieving something. Quite a high bar. Difficult to see it being applied to typical Lucas accessories, unless whatever it does had never before been possible in this way, e.g. it was the first ever solid state rectifier.

It is possible to gain some rights to a design if it is not a novel piece of technology, but it is unique in some less technical way, for example, its appearance. 'Design Rights' can be protected under separate rules as a registered or unregistered design. The protection is less absolute than a patent, but is easier to secure, a more practical test.

A drawing or piece of writing can be protected by 'copyright.'

The name 'Lucas' can be protected as a registered 'Trade Mark' with the (R) Mark. If a company owns a trade mark, it must continue to use it, or it can be struck off the register. Use can include licensing the trade mark to another company / multiple companies. Typically, trade mark licence agreements contain controls on the quality of what is produced by the licencee.

This is also true of patent and other intellectual property ("IP") rights owners. The manufacturing rights can be licensed. Hence product can be made and quality controlled by a number of businesses other than the owner of the trade mark, design rights, copyright or patent. But the quality criteria should be those set by the IP owner in the Licence Agreement.

Don't know if that helps, just needed to get it off my chest! :)
 
I have been tempted to shorter/modify the master cylinder casting and get rid of the brake switch. The hose would screw straight in the center of the casting, in line with the brake piston. This would solve the usual problem of the brake switch interfering with the handle bars.
I think it can be done by machining away the angular boss used to receive the brake switch, then cutting a thread to take the hose. A small amount of welding might be required to build up a boss to take the hose.
Flatter and shorter bars can then be used, and more options would be available as to where the brake lever ends up (horizontal, tipped forward, tipped back etc.)
I always use my rear brake when I use the front brake, so I don't think I am creating any safety issues.
Has anybody done this??
Stephen I have not done anything like this , but did think about it years back . Yes the stock switch has issues clearing the bars , particularly lower or flat ones . Eventually a Grimeca 13 mm. entered my life to fit on European bars . No issues , it's a micro- switch in a better M.C.
Legally this idea would fail a safety check for road use , but you know that . Track , no issue . Good luck on your decisions to make .
 
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