Help! Jenveys butterfly looseness.

Dave Bilyk

Dave Bilyk
Started to balance Jenvey pairs at idle. Number 5 was reading 3 times more flow than all the others including its brother number 6. I see that the butterfly has some play relative to its brother which explains the symptom. I tried to remove screws holding the Jenvey nameplate on but couldn't budge them. I don't want to be brutal with them unless they have to be removed to access a spindle connection. So is there a join between the two butterfly spindles or are they one. It doesn't look like the butterfly is loose in the spindle. What Next?
 

Dave Bilyk

Dave Bilyk
Sorted, it was a loose screw, the two butterfly spindles are connected by a hollow spacer with grub screws. Access is through the nameplate which reveals a cavity with the spindles and spacer. I will post pics in my main thread as I can't seem to resize the photos on this tablet.
Dave
 
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