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rick-l rick-l is offline
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Join Date: May 2002
Location: St Louis
Posts: 4,211
If an m491 has a DME, you could also check the weights on the distributor to see if they move freely.

They advance with RPM to handle the advance the DME wants to add.
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Rick
88 Cab
Old 08-20-2011, 12:39 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #12 (permalink)