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Tech. Advice: Series 'A' 500cc/1000cc Bikes
Series 'A' Oil Pump Modification
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<blockquote data-quote="Marcus Bowden" data-source="post: 150665" data-attributes="member: 3287"><p><strong>Brian my handsome,, here is part of the cocked up supply pump having an insert fitted as I machined it too deep, it's ended up 3/16" wide and have so much oil pressure I can't keep it in so now made an adjustable relief valve, opened up the oil quill to 4 to 5 mm fitted a Teflon collar over it so it can cold flow into the end of the main shaft and seal producing 35 P.S.I. as the big end is a plain floating bush like a Royal Enfield (built like a gun) will show the relief v/v another time as no photo yet. Cheeper to make a bush than buy a Vincent big / end. All the 100's k hours an a ships plain bearings have never replaced one just imagine the surface area to that of a line contact of a roller and it's ability to Brinnell the crank pin.</strong></p><p><strong>bananaman.</strong></p><p></p><p>[ATTACH=full]46761[/ATTACH]</p><p></p><p></p><p>[ATTACH=full]46762[/ATTACH]</p></blockquote><p></p>
[QUOTE="Marcus Bowden, post: 150665, member: 3287"] [B]Brian my handsome,, here is part of the cocked up supply pump having an insert fitted as I machined it too deep, it's ended up 3/16" wide and have so much oil pressure I can't keep it in so now made an adjustable relief valve, opened up the oil quill to 4 to 5 mm fitted a Teflon collar over it so it can cold flow into the end of the main shaft and seal producing 35 P.S.I. as the big end is a plain floating bush like a Royal Enfield (built like a gun) will show the relief v/v another time as no photo yet. Cheeper to make a bush than buy a Vincent big / end. All the 100's k hours an a ships plain bearings have never replaced one just imagine the surface area to that of a line contact of a roller and it's ability to Brinnell the crank pin. bananaman.[/B] [ATTACH type="full" alt="P1070994.JPG"]46761[/ATTACH] [ATTACH type="full" alt="P1070092 2.JPG"]46762[/ATTACH] [/QUOTE]
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Tech. Advice: Series 'A' 500cc/1000cc Bikes
Series 'A' Oil Pump Modification
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