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Interesting picture of the Domiracer motor. I note pressure fed camshaft lubrication and direct feeding of rocker gear lubrication (or is it a cylinder head oil cooling arrangement?). I wonder how Mr. Hele balanced the oil flows.
Head was painted black for maximum heat radiation.

Reynolds Tubing was a supplier to Norton for Featherbed frames, including Featherbed racing frames. These were of different tubing to the roadgoing frames, but were still of low grade steel, as I recall from articles on the subject.

The Lowboy frame kit really is a nice piece of engineering. Head stock was brazed - I guess that goes for the gusset plates at the rear too. This hints at the use of Reynold R531 tubing, also supported by a report saying the Domiracer's weight was considerably less than weight of the (production?) 500 Manx. A sensational weight advantage of 35 lb (16 kg) has been claimed, despite a heavier engine. Ultimately, the factory team's 350 Manx made use of 16-gauge Reynolds 531 as well.
It's more than likely Reynolds Tubing was charged with building Lowboy frames for Norton and possibly for Dunstall.

- Knut

<blockquote data-quote="mdt-son" data-source="post: 629034" data-attributes="member: 3823">Interesting picture of the Domiracer motor. I note pressure fed camshaft lubrication and direct feeding of rocker gear lubrication (or is it a cylinder head oil cooling arrangement?). I wonder how Mr. Hele balanced the oil flows.Head was painted black for maximum heat radiation.Reynolds Tubing was a supplier to Norton for Featherbed frames, including Featherbed racing frames. These were of different tubing to the roadgoing frames, but were still of low grade steel, as I recall from articles on the subject.The Lowboy frame kit really is a nice piece of engineering. Head stock was brazed - I guess that goes for the gusset plates at the rear too. This hints at the use of Reynold R531 tubing, also supported by a report saying the Domiracer&#039;s weight was considerably less than weight of the (production?) 500 Manx. A sensational weight advantage of 35 lb (16 kg) has been claimed, despite a heavier engine. Ultimately, the factory team&#039;s 350 Manx made use of 16-gauge Reynolds 531 as well.It&#039;s more than likely Reynolds Tubing was charged with building Lowboy frames for Norton and possibly for Dunstall.- Knut</blockquote>

[QUOTE="mdt-son, post: 629034, member: 3823"] Interesting picture of the Domiracer motor. I note pressure fed camshaft lubrication and direct feeding of rocker gear lubrication (or is it a cylinder head oil cooling arrangement?). I wonder how Mr. Hele balanced the oil flows. Head was painted black for maximum heat radiation. Reynolds Tubing was a supplier to Norton for Featherbed frames, including Featherbed racing frames. These were of different tubing to the roadgoing frames, but were still of low grade steel, as I recall from articles on the subject. The Lowboy frame kit really is a nice piece of engineering. Head stock was brazed - I guess that goes for the gusset plates at the rear too. This hints at the use of Reynold R531 tubing, also supported by a report saying the Domiracer's weight was considerably less than weight of the (production?) 500 Manx. A sensational weight advantage of 35 lb (16 kg) has been claimed, despite a heavier engine. Ultimately, the factory team's 350 Manx made use of 16-gauge Reynolds 531 as well. It's more than likely Reynolds Tubing was charged with building Lowboy frames for Norton and possibly for Dunstall. - Knut [/QUOTE]

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