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Austinsevenfriends
Using carbon HT leads with acorn caps... - Printable Version

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Using carbon HT leads with acorn caps... - Ruairidh Dunford - 07-03-2022

Could anyone tell me if this is possible and how I should go about it please?

I need to fit suppressed HT leads to a project with a DK4 cap - I would prefer to use the brass crimped ends at the plug too, any practical experience in this area would be very welcome.

RE: Using carbon HT leads with acorn caps... - Howard Wright - 07-03-2022

Hi Ruairidh 

I bought a set of these a few weeks ago to try and solve interference with led indicators and an electronic rev counter.

They seem to work fine and have cured the suppression problems.

Cheers

Howard


https://www.ebay.co.uk/itm/Austin-7-Traditional-Acorn-Fitting-Ignition-Leads-by-Powerspark-ignition-/133307143393?mkcid=16&mkevt=1&_trksid=p2349624.m46890.l49286&mkrid=710-127635-2958-0

RE: Using carbon HT leads with acorn caps... - Ruairidh Dunford - 07-03-2022

Thank you Howard - can you take a photo of the acorn end for me please?

RE: Using carbon HT leads with acorn caps... - AustinWood - 07-03-2022

I use a length of solid copper wire from a mains cable about 1-1/2" long. Push it up inside the cable then bend it over 90 degrees and bend it round in a circle flat against the end of the acorn.
has been working well for us for a long time.

RE: Using carbon HT leads with acorn caps... - Ruairidh Dunford - 07-03-2022

That sounds perfect - have/can you do the same at the spark plug end as well Jim?

RE: Using carbon HT leads with acorn caps... - Howard Wright - 07-03-2022

(07-03-2022, 07:00 PM)Ruairidh Dunford Wrote: Thank you Howard - can you take a photo of the acorn end for me please?

Hi Ruairidh 

I’ll take a photo first thing tomorrow.

Cheers

Howard

RE: Using carbon HT leads with acorn caps... - Ruairidh Dunford - 07-03-2022

Very helpful - thank you!

RE: Using carbon HT leads with acorn caps... - Barry Townsend - 07-03-2022

Hi Howard

Do you use the brass crimped end on the plug end.

I had problems with LED indicators which I eventually rectified by using suppressor caps. Whilst it solved the problem I don't like the appearance, I would prefer to use the proper brass ends

RE: Using carbon HT leads with acorn caps... - Nick Lettington - 07-03-2022

I just stripped the insulation and poked the grey stringy bit (technical term) through the brass washers. I think on the plug end I would have done the same and folded it back onto the outside of the lead before crushing the crimp, much as you would with copper... I like the idea of a strand of copper to beef it up.

RE: Using carbon HT leads with acorn caps... - Howard Wright - 08-03-2022

Hi All

Photos as requested.  I bought two sets of leads, one to keep in the car as a spare. These are photos of my spare set.

The dizzy end connection looks secure but time will tell.  The plug caps are plain enough to look reasonably period.  However like Barry I would have preferred brass screw ends.

Hope this helps?

Cheers

Howard


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