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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Cylinder Lubrication
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<blockquote data-quote="Chris.R" data-source="post: 115191" data-attributes="member: 4043"><p>There are three feed screws in the Timing cover of the Comet. I have been able to remove OP39 the top centre one that is in front of a casing screw it has a 170 jet. I have removed OP38 oil relief valve plug a large brass nut and the spring behind it but OP37 the relief valve has not fallen out, I assume it is stuck in the oilway so how to remove it? At the top left there is a slotted screw so tight that I cannot undo it do I need to take it out can heat be used safely and what is the part number as none seems to be listed? I notice in the Instruction Sheets page 68 Examining Components it say`s the piston gaugeon pin should be an "easy push fit when cold" it is not, it is a tight fit and had to be drifted to remove the piston. Should the pin and small end be replaced? is removal and replacement of the small end something that can be done in-situ at home? </p><p></p><p>I welcome any comment that will help me.</p><p></p><p>Chris</p></blockquote><p></p>
[QUOTE="Chris.R, post: 115191, member: 4043"] There are three feed screws in the Timing cover of the Comet. I have been able to remove OP39 the top centre one that is in front of a casing screw it has a 170 jet. I have removed OP38 oil relief valve plug a large brass nut and the spring behind it but OP37 the relief valve has not fallen out, I assume it is stuck in the oilway so how to remove it? At the top left there is a slotted screw so tight that I cannot undo it do I need to take it out can heat be used safely and what is the part number as none seems to be listed? I notice in the Instruction Sheets page 68 Examining Components it say`s the piston gaugeon pin should be an "easy push fit when cold" it is not, it is a tight fit and had to be drifted to remove the piston. Should the pin and small end be replaced? is removal and replacement of the small end something that can be done in-situ at home? I welcome any comment that will help me. Chris [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Cylinder Lubrication
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