Q-Jet problem-help

Joe DeMarzo · 05-31-2010, 11:04 AM

All of a sudden my q-jet is giving me fits..... When I stage below 2600 rpm no problem, when I go above that to 2700 and up the secondaries open and push me in deep and it is like wrestling with an alligator at the starting line. Last year I could leave up to 3500 with no problem

I will accept all idea's here, pm, return reciept mail, telegraph or email. Very frustrating and distracting at the starting line.

Can anyone HELP an old alter boy.

Alan Roehrich · 05-31-2010, 11:22 AM

Joe,
Are you staging with or without a two step? Have you made ANY changes?

Jack Matyas · 05-31-2010, 11:27 AM

[QUOTE=Joe DeMarzo;189885]

Can anyone HELP an old alter boy.

Joe -- If I qualify call me .................

Joe Martens · 05-31-2010, 12:13 PM

I have the solution, Joe. Put a stick in it! Lol!!!

Danny Ashley · 05-31-2010, 12:31 PM

Joe:
You know you can call me, right? I'm in the shop today. No rest for the weary.

Joe DeMarzo · 05-31-2010, 01:06 PM

Alan, old footbraker, no changes.

Danny will call tomorrow,

Joe, I would hurt myself with a stick, lol

Enjoy the day.

Tony Curcio · 05-31-2010, 04:05 PM

Maybe not the carb, but the rear brakes need adusting- if they are drums, or some other brake related issue.

Mark Markow · 05-31-2010, 07:14 PM

joe couldn't you just adjust the spring on the secondary flap a little stiffer?

Alan Roehrich · 05-31-2010, 08:09 PM

Several things are possible.

As already mentioned, it could be brakes, however, it's not likely with your description, as less brake would mean less load. It wouldn't bring the secondaries in at a lower RPM, it would just push through the lights.

It could be a converter problem, if the converter has failed and is tightening up, you need more throttle to get the same RPM, and it pushes harder as well.

Or, the secondaries could have gotten looser, either from the spring getting soft or out of adjustment, or if you still have the choke pulloff, it could have gone bad. If the choke pulloff is there, and still hooked up to the secondaries, like it should be, it helps keep them OUT, unless it has failed, then it allows them to come in earlier.

Check the carburetor, then in a safe area, do a flash test, just mat the throttle from a high idle and see if the converter still flashes like it did before.

Bob Bender · 06-01-2010, 07:22 AM

Quote:

Originally Posted by Mark Markow

joe couldn't you just adjust the spring on the secondary flap a little stiffer?

I second that................

05-31-2010, 11:04 AM	#1
Joe DeMarzo Senior Member Join Date: Oct 2002 Location: Mahopac, NY Posts: 666 Likes: 48 Liked 113 Times in 9 Posts	Q-Jet problem-help All of a sudden my q-jet is giving me fits..... When I stage below 2600 rpm no problem, when I go above that to 2700 and up the secondaries open and push me in deep and it is like wrestling with an alligator at the starting line. Last year I could leave up to 3500 with no problem I will accept all idea's here, pm, return reciept mail, telegraph or email. Very frustrating and distracting at the starting line. Can anyone HELP an old alter boy. __________________ Joe DeMarzo 1317 STK

05-31-2010, 11:22 AM	#2
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,095 Likes: 1,542 Liked 1,772 Times in 402 Posts	Re: Q-Jet problem-help Joe, Are you staging with or without a two step? Have you made ANY changes? __________________ Alan Roehrich 212A G/S

05-31-2010, 11:27 AM	#3
Jack Matyas Live Reporter Join Date: Nov 2001 Location: Bethlehem , PA -Christmas City , USA Posts: 4,913 Likes: 403 Liked 1,945 Times in 388 Posts	Re: Q-Jet problem-help [QUOTE=Joe DeMarzo;189885] Can anyone HELP an old alter boy. Joe -- If I qualify call me ................. Attached Thumbnails __________________ Jack Matyas 1547 FS/C 2015 Camaro COPO # 62- 2012 Camaro Convertible COPO Last edited by Jack Matyas; 05-31-2010 at 11:43 AM.

05-31-2010, 12:13 PM	#4
Joe Martens Senior Member Join Date: Dec 2001 Location: North Olmsted, Ohio Posts: 787 Likes: 622 Liked 196 Times in 69 Posts	Re: Q-Jet problem-help I have the solution, Joe. Put a stick in it! Lol!!! __________________ Joe Martens AA/Stock 3969

05-31-2010, 12:31 PM	#5
Danny Ashley Member Join Date: Nov 2001 Location: Marion,In. Posts: 267 Likes: 60 Liked 110 Times in 29 Posts	Re: Q-Jet problem-help Joe: You know you can call me, right? I'm in the shop today. No rest for the weary.

05-31-2010, 01:06 PM	#6
Joe DeMarzo Senior Member Join Date: Oct 2002 Location: Mahopac, NY Posts: 666 Likes: 48 Liked 113 Times in 9 Posts	Re: Q-Jet problem-help Alan, old footbraker, no changes. Danny will call tomorrow, Joe, I would hurt myself with a stick, lol Enjoy the day. __________________ Joe DeMarzo 1317 STK

05-31-2010, 04:05 PM	#7
Tony Curcio Member Join Date: Mar 2002 Location: West Chester, PA Posts: 271 Likes: 1 Liked 4 Times in 1 Post	Re: Q-Jet problem-help Maybe not the carb, but the rear brakes need adusting- if they are drums, or some other brake related issue. __________________ Tony Curcio 1860 STK

05-31-2010, 07:14 PM	#8
Mark Markow Senior Member Join Date: Apr 2008 Location: east hartford ct. Posts: 539 Likes: 0 Liked 9 Times in 3 Posts	Re: Q-Jet problem-help joe couldn't you just adjust the spring on the secondary flap a little stiffer? __________________ Mark Markow 171 ss/tb

05-31-2010, 08:09 PM	#9
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,095 Likes: 1,542 Liked 1,772 Times in 402 Posts	Re: Q-Jet problem-help Several things are possible. As already mentioned, it could be brakes, however, it's not likely with your description, as less brake would mean less load. It wouldn't bring the secondaries in at a lower RPM, it would just push through the lights. It could be a converter problem, if the converter has failed and is tightening up, you need more throttle to get the same RPM, and it pushes harder as well. Or, the secondaries could have gotten looser, either from the spring getting soft or out of adjustment, or if you still have the choke pulloff, it could have gone bad. If the choke pulloff is there, and still hooked up to the secondaries, like it should be, it helps keep them OUT, unless it has failed, then it allows them to come in earlier. Check the carburetor, then in a safe area, do a flash test, just mat the throttle from a high idle and see if the converter still flashes like it did before. __________________ Alan Roehrich 212A G/S