New Q vs old Q

jmamrak

Registered Member
Original poster
Jul 17, 2014
380
Lagrange KY
I have 2 Q2b’s. One seems to wind up much faster and peak out a lot quicker then the other. Is this a design difference? Or is my motor worn out? My old Q takes more then 6 seconds to peak out. My newer one is around 3. Thoughts or suggestions?
 

firebuff17

Member
Silver Donor
Mar 28, 2011
691
CT
I was wondering the same thing?
There is a guy on YouTube who uploads some videos of fixing Q’s and from what I can tell it might have to do with the clutch mechanisms. But that’s just a guess.

Hopefully somebody with fact will chime in!
 

jmamrak

Registered Member
Original poster
Jul 17, 2014
380
Lagrange KY
I was wondering the same thing?
There is a guy on YouTube who uploads some videos of fixing Q’s and from what I can tell it might have to do with the clutch mechanisms. But that’s just a guess.

Hopefully somebody with fact will chime in!
Thanks I will check out YouTube. I have done some clutch maintenance before. Such a shame Skip isn’t around. He would know exactly what to tell me.
 
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Wailer

Veteran Member
May 24, 2010
2,220
Canada
I don't know if it is old vs new sirens, but I noticed that Q sirens on antique fire engines don't get as high-pitched as those on modern fire engines. Maybe that has something to do with the electrical system on the older trucks.
 

firebuff17

Member
Silver Donor
Mar 28, 2011
691
CT
I know there are also changes in the number of holes (well rectangles)(9 and 14 are coming to mind but that is a vague memory so don’t quote me on that) in the stator also. I would assume that changed the pitch also.
 
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TDC

Platinum Donor
Dec 4, 2012
128
near Carswell AFB, TX
Really no help here, but I remember hearing that the old clutch would allow the siren to roll out until nature took over, some 5 minutes long until it completely stopped.
Maybe there is a field test in there somewhere.
 

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