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<blockquote data-quote="jason60" data-source="post: 393482" data-attributes="member: 3361">diffuser filter, motor filter and motorsThe diffuser filters were added to the European &quot;connies&quot; in the late 60s namely model 670s. The major downside was they tended to restrict airflow coming out of the exhaust, thus reducing its capacity to float. which went against the whole of idea of what the &quot;connie&quot; was about.protecting the motor from dust is important, they can tolerate some dust but not large debri, be careful what you use, restricting the airflow with layers of hepa filters over the grill does not help floatation and can make your motor work hard, save the hepa to be used as dustbags as they have a larger surface area to suck air through. You only need to use a piece of felt or similar material that minimises air restriction.Connie motors last a long time, mainly due to the fact that they were situated upright putting very little pressure on the top and bottom bearings. the long cylinder vacuums mounted motors lying on their side, causing them not to fare quite so well.&nbsp; Modern vacuums will of course not last nearly as long as the vintage ones due to less well engineered motor parts.</blockquote>

[QUOTE="jason60, post: 393482, member: 3361"] [b]diffuser filter, motor filter and motors[/b] The diffuser filters were added to the European "connies" in the late 60s namely model 670s. The major downside was they tended to restrict airflow coming out of the exhaust, thus reducing its capacity to float. which went against the whole of idea of what the "connie" was about. protecting the motor from dust is important, they can tolerate some dust but not large debri, be careful what you use, restricting the airflow with layers of hepa filters over the grill does not help floatation and can make your motor work hard, save the hepa to be used as dustbags as they have a larger surface area to suck air through. You only need to use a piece of felt or similar material that minimises air restriction. Connie motors last a long time, mainly due to the fact that they were situated upright putting very little pressure on the top and bottom bearings. the long cylinder vacuums mounted motors lying on their side, causing them not to fare quite so well. Modern vacuums will of course not last nearly as long as the vintage ones due to less well engineered motor parts. [/QUOTE]

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