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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Return Oil Pressure High?
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<blockquote data-quote="John Fewster" data-source="post: 129674" data-attributes="member: 4168"><p>Think solution found. I have chromed oil pipes and also double capacity pump worm. Pressure, though low, is slightly higher on startup and just enough to blow off the un-crimped rubber section. Once it first happened I cleaned, degreased and hylomared but it still throbbed and popped off after couple seconds running. I just now cleaned off again and stuck on 2x unsightly jubilee clips... and problem solved! No idea why it was OK for over 40 years then suddenly popped? May have been temporary blockage in rocker returns but I found no evidence. Did see evidence of red Hermetite on the pipes before cleaning and refitting. This stuff sets bit firmer than Hylomar so probably held seal for longer on the slippery chrome tube. I will eventually remove the jubilee clips, roughen the chrome under the rubber pipe, revert to Hermetite and do proper s/s ferrules with crimping on just these 2 joints.</p></blockquote><p></p>
[QUOTE="John Fewster, post: 129674, member: 4168"] Think solution found. I have chromed oil pipes and also double capacity pump worm. Pressure, though low, is slightly higher on startup and just enough to blow off the un-crimped rubber section. Once it first happened I cleaned, degreased and hylomared but it still throbbed and popped off after couple seconds running. I just now cleaned off again and stuck on 2x unsightly jubilee clips... and problem solved! No idea why it was OK for over 40 years then suddenly popped? May have been temporary blockage in rocker returns but I found no evidence. Did see evidence of red Hermetite on the pipes before cleaning and refitting. This stuff sets bit firmer than Hylomar so probably held seal for longer on the slippery chrome tube. I will eventually remove the jubilee clips, roughen the chrome under the rubber pipe, revert to Hermetite and do proper s/s ferrules with crimping on just these 2 joints. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Return Oil Pressure High?
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