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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Oil Pump and Oiling Sytem Modifications
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<blockquote data-quote="Marcus Bowden" data-source="post: 165497" data-attributes="member: 3287"><p>Since 1990 I had done 108K miles since 1970 broken quill took me to France to have my main bearings re-sleaved by Herve' Hamond whilst there I fitted a Honda oil p/p generating 1.0 bar pressure into the cam oil gallery blanking off the cylinder supply the pressure gauge use to oscillate at low revs as the oil was shut off and on by the rotation of the cams, (will show a picture how this was achieved). The next time the engine was down was 2010 when a coil packed up and I was running twin plugs retarding the engine dramatically and holed a piston on rear pot and dropped an exhaust V/V seat on the front, all cams had less wear than when fitted between 1970 & 1990 to 2010 another 110k miles and even less wear 2018 main bearings rumbling 80k miles only a couple of thousands off the tops of the cams.</p><p> Not all spindles are made the same so if there are no oil holes under the cam face grind the surface under the case hardening and drill another hole then grind a groove around from the hole anticlockwise so oil can start flowing into cam before follower reaches cam.</p><p>First is a new spindle 2nd is the one to be fitted, 3rd is the one removed as the threaded part had snapped off due to over hardening. these are all fitted with the holes pointing upwards between the push rod tubes, which I think proves that the oil is getting to the face of the followers that are polished stellite as they have done well over 300k</p><p>any other questions please PM me email inside front cover of MPH</p><p>[ATTACH=full]54420[/ATTACH]</p><p></p><p>Honda p/p fitted and takes oil from behind the flywheel trough where there is a weir fitted so creates a oil reserve</p><p>[ATTACH=full]54421[/ATTACH]</p><p></p><p>the weir is behind the dip pipe with a hole on top tapped into the scavenge p/p suction</p><p></p><p>[ATTACH=full]54422[/ATTACH]</p></blockquote><p></p>
[QUOTE="Marcus Bowden, post: 165497, member: 3287"] Since 1990 I had done 108K miles since 1970 broken quill took me to France to have my main bearings re-sleaved by Herve' Hamond whilst there I fitted a Honda oil p/p generating 1.0 bar pressure into the cam oil gallery blanking off the cylinder supply the pressure gauge use to oscillate at low revs as the oil was shut off and on by the rotation of the cams, (will show a picture how this was achieved). The next time the engine was down was 2010 when a coil packed up and I was running twin plugs retarding the engine dramatically and holed a piston on rear pot and dropped an exhaust V/V seat on the front, all cams had less wear than when fitted between 1970 & 1990 to 2010 another 110k miles and even less wear 2018 main bearings rumbling 80k miles only a couple of thousands off the tops of the cams. Not all spindles are made the same so if there are no oil holes under the cam face grind the surface under the case hardening and drill another hole then grind a groove around from the hole anticlockwise so oil can start flowing into cam before follower reaches cam. First is a new spindle 2nd is the one to be fitted, 3rd is the one removed as the threaded part had snapped off due to over hardening. these are all fitted with the holes pointing upwards between the push rod tubes, which I think proves that the oil is getting to the face of the followers that are polished stellite as they have done well over 300k any other questions please PM me email inside front cover of MPH [ATTACH type="full" alt="P1050447.jpg"]54420[/ATTACH] Honda p/p fitted and takes oil from behind the flywheel trough where there is a weir fitted so creates a oil reserve [ATTACH type="full" alt="P1040104.JPG"]54421[/ATTACH] the weir is behind the dip pipe with a hole on top tapped into the scavenge p/p suction [ATTACH type="full" alt="P1050264.JPG"]54422[/ATTACH] [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Oil Pump and Oiling Sytem Modifications
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