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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Chewed up push rod and vexing oil leak
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<blockquote data-quote="Ducdude" data-source="post: 23799" data-attributes="member: 2077"><p>The temp push rod is doing its job and the bike seems to be running </p><p>fine-ish...It seems to pull well and idle well and cruse well in 2nd 3rd </p><p>most of the time...Then all of a sudden it gets a tad rougher running and </p><p>may or may not tend to stall. A bit of time on the carb air mixture screws </p><p>seems to have helped? I still think she is running a tad rich as I get </p><p>white smoke out the pipe and wet black plugs...</p><p></p><p>I have 32mm Amal's MK1's running w/o filters and an open pipe with 210 </p><p>mains...what do you think a good first adjustment would be to lean it out </p><p>JUST a TAD? As I said the stand in push rod seems to work acceptably with </p><p>just a bit of exhaust popping on the</p><p>over run..Which may be the rich mixture or a response to the less then </p><p>perfect push rod I am using...Its end being less the perfectly round.</p><p></p><p>As far as the leak goes more testing with powder had determined that the </p><p>lower ft exhaust push rod tube seal was contributory to the leak at the </p><p>front of the cylinder. The other 3 sets of push rod seals are also </p><p>misting a bit, they are next....I dug the offending seal out and replaced it </p><p>and went for a ride...No leak .....</p><p></p><p>Ahh the difference a day makes....</p><p></p><p>Cheers,</p><p>Eric</p></blockquote><p></p>
[QUOTE="Ducdude, post: 23799, member: 2077"] The temp push rod is doing its job and the bike seems to be running fine-ish...It seems to pull well and idle well and cruse well in 2nd 3rd most of the time...Then all of a sudden it gets a tad rougher running and may or may not tend to stall. A bit of time on the carb air mixture screws seems to have helped? I still think she is running a tad rich as I get white smoke out the pipe and wet black plugs... I have 32mm Amal's MK1's running w/o filters and an open pipe with 210 mains...what do you think a good first adjustment would be to lean it out JUST a TAD? As I said the stand in push rod seems to work acceptably with just a bit of exhaust popping on the over run..Which may be the rich mixture or a response to the less then perfect push rod I am using...Its end being less the perfectly round. As far as the leak goes more testing with powder had determined that the lower ft exhaust push rod tube seal was contributory to the leak at the front of the cylinder. The other 3 sets of push rod seals are also misting a bit, they are next....I dug the offending seal out and replaced it and went for a ride...No leak ..... Ahh the difference a day makes.... Cheers, Eric [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Chewed up push rod and vexing oil leak
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