Help! Jenveys butterfly looseness.

Dave Bilyk

Dave Bilyk
Supporter
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
Supporter
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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