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<blockquote data-quote="watsonw" data-source="post: 435783" data-attributes="member: 254">COMMUTATOR.Hello&nbsp; Jake,On inspection of the commutator did you notice that where the carbons touched&nbsp; was there a very distinct track worn? I had a very smooth running 652 which I took apart for full servicing and noticed the comm had a deep dip where the carbons had been running; carbons very worn down but smooth. I reassembled the motor, run it with a commutator stick just to insure good re-bedding of the carbons;&nbsp; the sparks tracked all around the comm; motor ran much louder and sounded rough. Fitted new carbons, employing comm stick_ even worse!!Conclusion : if you fully overall a motor that has been over run/used over many years said overall might turn out to be a disturbance which is just to much for the ageing circuit!!I understand you annoyance with yourself. Sadly we win some but lose some!Regards, Walter, SHROPSHIRE.</blockquote>

[QUOTE="watsonw, post: 435783, member: 254"] [b]COMMUTATOR.[/b] Hello Jake, On inspection of the commutator did you notice that where the carbons touched was there a very distinct track worn? I had a very smooth running 652 which I took apart for full servicing and noticed the comm had a deep dip where the carbons had been running; carbons very worn down but smooth. I reassembled the motor, run it with a commutator stick just to insure good re-bedding of the carbons; the sparks tracked all around the comm; motor ran much louder and sounded rough. Fitted new carbons, employing comm stick_ even worse!!Conclusion : if you fully overall a motor that has been over run/used over many years said overall might turn out to be a disturbance which is just to much for the ageing circuit!! I understand you annoyance with yourself. Sadly we win some but lose some! Regards, Walter, SHROPSHIRE. [/QUOTE]

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