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12-21-2024, 07:02 PM
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#1 |
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Member
Join Date: Aug 2008
Posts: 137
Likes: 80
Liked 132 Times in 52 Posts
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Re: Q jet power piston spring
Spring shouldn’t affect idle. Power piston is tied to main circuit not idle circuit if pulling fuel from main circuit at idle throttle blades are to far open.
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12-21-2024, 09:55 PM
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#2 |
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Junior Member
Join Date: Dec 2005
Location: Portland ,OR
Posts: 16
Likes: 0
Liked 0 Times in 0 Posts
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Re: Q jet power piston spring
Checked for vac leak w/ smoke machine.
As for the pistons. I thinking maybe a little pull over . Well I'll put it back together as it's a backup and work on it next spring. thanks all who chimed in. John B645 |
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12-22-2024, 07:22 AM
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#3 |
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Member
Join Date: Nov 2001
Location: Marion,In.
Posts: 267
Likes: 60
Liked 110 Times in 29 Posts
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Re: Q jet power piston spring
PM sent
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12-22-2024, 12:34 PM
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#4 |
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Senior Member
Join Date: Feb 2008
Location: Georgetown, Indiana (close to Louisville, KY)
Posts: 776
Likes: 530
Liked 230 Times in 106 Posts
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Re: Q jet power piston spring
Put flat edge on top base sitting upside down. Must be good and flat.
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12-23-2024, 09:09 AM
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#5 |
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Senior Member
Join Date: Oct 2002
Location: Pittsburgh
Posts: 575
Likes: 298
Liked 747 Times in 136 Posts
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Re: Q jet power piston spring
Get a drinking straw, cut it down to about 4? long. Place it in the vent stack
at abslight angle to catch the power piston/primary metering rod hanger arms. Note the length sticking up. Now start the engine. It should pull the power piston down and the straw with it. If it goes down and stays down At ?idle? (yes I understand it won?t idle well on its own but you get the idea) then that?s not your problem. Have you drilled the holes in the primary blades yet? Kp |
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12-23-2024, 09:23 PM
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#6 |
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Junior Member
Join Date: Oct 2015
Posts: 60
Likes: 44
Liked 27 Times in 19 Posts
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Re: Q jet power piston spring
Get rid of PP & rods & block the vac. supply, reduce jet size.
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12-23-2024, 11:22 PM
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#7 | |
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Veteran Member
Join Date: Mar 2002
Location: Miles From Nowhere
Posts: 7,809
Likes: 2,900
Liked 5,114 Times in 1,948 Posts
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Re: Q jet power piston spring
Quote:
I didn't think anyone used the primary enrichment circuit anymore ;-)
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