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6 cyl Bristol cars Type 400 to 406 - restoration, repair, maintenance etc |
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Thank you to all who placed orders including those from across the pond (x3), South Africa & Europe. Tony B |
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![]() And thank you all that have ordered the head spanners from me over the last three years that are made by a British specialist tool maker as perfect replicas from the best quality tool steel :-) and as used by professional Bristol engine builders !!
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![]() Oops , time goes by so quickly ! It was 2009 that the first batch of head spanners were announced on this forum manufactured by my contacts in the metals industry ( MD of Alcan aluminium for Northern Europe for transportation and the aircraft industry ) The water jet process is very useful and it was used a lot for making kits for ships etc -- but for hand tools !
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![]() All, I don't normally react within the public domain to comments made; but ...
Modern technology moves what can be achieved over time, via a specialist manufacturer, using the correct base material, i.e. Chrome Vanadium, now allows water cutting to achieve not only the correct profile but remarkably even the double hexagons for the cylinder head bolts. It's actually the microscopic slurry partials in the water that performs the cutting; in this instance using larger partials for the outside profile and finer ones for the two double hexagons ends which gives a smoother finish. The spanner is then bench tested to confirm correct torque suitability (45Lbf) and on an engine to confirm cylinder head bolt access. All current customers have been very pleased with the results. I'm also offering 'support' to other club members in their venture down a forged route, but its very early days and they are leading on this. Neither approach is intended to give feedback to what is already out there in the market place or offer an opinion on which gives the 'best result' / value for money. |
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![]() Lol - I'm delighted for you
I only made the comment to point out that using the search button on this forum or most other Bristol forums will often give you the answer you are looking for -- whether it's looking for parts or how to fix something. I know companies like .. In Racing Mike Robinson ACCS SLJ BCL Brabazon Boda Ashley Hinton Etc etc - all invest a lot of time and money in parts production for what is a very small turnover market place. It would be a shame if they lost the incentive to do this by replicating what is already available -- so probably best to find out what is available first ? I think the above list of companies have most things covered. |