car stumbles in the air! - Page 4

bob3240 · 06-09-2011, 08:53 PM

do you have the black tape on the secondary metering rod slots?

TinSoldier 3215 · 06-09-2011, 10:14 PM

Bob, No.

John Musial · 06-10-2011, 02:40 PM

jonesracing you have a PM

Alan Roehrich · 06-10-2011, 07:16 PM

Got this from a friend and fellow racer, a really good racer. Check the fuel pump. There was a car with this exact problem, and what was happening was that under G's from the launch, the armature of the fuel pump would move and short out. It did not show on the fuel pressure gauge. They fought this problem all year, and a new fuel pump fixed the car for the last time trial at the last race of the season.

Rusty Davenport · 06-14-2011, 08:28 AM

This is for real......check the main wiring terminal for loose connections...check them with a wrench---not your hand......when I let go of the tranny brake the connection would momentarily lose connection then reconnect when it hit the ground off the wheelstand.......do not underestimate this happening, do not trust checking with your hand I say again....I felt stupid when I started replacing parts and found out a nut needed WRENCH TIGHTNESS.

Ed Wright · 06-15-2011, 10:44 AM

Quote:

Originally Posted by rusty davenport

this is for real......check the main wiring terminal for loose connections...check them with a wrench---not your hand......when i let go of the tranny brake the connection would momentarily lose connection then reconnect when it hit the ground off the wheelstand.......do not underestimate this happening, do not trust checking with your hand i say again....i felt stupid when i started replacing parts and found out a nut needed wrench tightness.

x2!!

TinSoldier 3215 · 06-18-2011, 10:00 AM

If the rain stays away we are going to try things out tonight!!

Aaron Keown · 06-19-2011, 04:32 AM

First thing you should probably do is see if a fellow racer with a similiar combo will let you borrow his carb. for one pass so that you can make sure that is what is really causing the problem before you try chasing down lose wires or any other number of things that could be causing this.Good luck ,you'll find it.

TinSoldier 3215 · 06-25-2011, 09:59 AM

Well after 3 weeks of Bad Luck we went to the track and found the issue. Thanks for all your guys help. It turn out to be the button!!!

junior barns · 06-25-2011, 12:54 PM

what button?

06-09-2011, 08:53 PM	#31
bob3240 Member Join Date: Jan 2009 Location: lebanon ohio Posts: 250 Likes: 3 Liked 14 Times in 4 Posts	Re: car stumbles in the air! do you have the black tape on the secondary metering rod slots?

06-09-2011, 10:14 PM	#32
TinSoldier 3215 Member Join Date: Jul 2009 Location: Bulington, Ky Posts: 359 Likes: 0 Liked 6 Times in 5 Posts	Re: car stumbles in the air! Bob, No.

06-10-2011, 02:40 PM	#33
John Musial Junior Member Join Date: Dec 2005 Location: Comfort Texas Posts: 92 Likes: 63 Liked 51 Times in 3 Posts	Re: car stumbles in the air! jonesracing you have a PM

06-10-2011, 07:16 PM	#34
Alan Roehrich VIP Member Join Date: May 2006 Location: Murfreesboro TN Posts: 4,916 Likes: 997 Liked 1,046 Times in 276 Posts	Re: car stumbles in the air! Got this from a friend and fellow racer, a really good racer. Check the fuel pump. There was a car with this exact problem, and what was happening was that under G's from the launch, the armature of the fuel pump would move and short out. It did not show on the fuel pressure gauge. They fought this problem all year, and a new fuel pump fixed the car for the last time trial at the last race of the season. __________________ Alan Roehrich 212A G/S

06-14-2011, 08:28 AM	#35
Rusty Davenport Senior Member Join Date: Jun 2005 Location: Nashville N.C. Posts: 505 Likes: 4 Liked 100 Times in 26 Posts	Re: car stumbles in the air! This is for real......check the main wiring terminal for loose connections...check them with a wrench---not your hand......when I let go of the tranny brake the connection would momentarily lose connection then reconnect when it hit the ground off the wheelstand.......do not underestimate this happening, do not trust checking with your hand I say again....I felt stupid when I started replacing parts and found out a nut needed WRENCH TIGHTNESS.

06-18-2011, 10:00 AM	#37
TinSoldier 3215 Member Join Date: Jul 2009 Location: Bulington, Ky Posts: 359 Likes: 0 Liked 6 Times in 5 Posts	Re: car stumbles in the air! If the rain stays away we are going to try things out tonight!!

06-19-2011, 04:32 AM	#38
Aaron Keown Junior Member Join Date: Mar 2004 Location: 1710 Dutch Lane,Jeffersonville,IN Posts: 63 Likes: 0 Liked 0 Times in 0 Posts	Re: car stumbles in the air! First thing you should probably do is see if a fellow racer with a similiar combo will let you borrow his carb. for one pass so that you can make sure that is what is really causing the problem before you try chasing down lose wires or any other number of things that could be causing this.Good luck ,you'll find it.

06-25-2011, 09:59 AM	#39
TinSoldier 3215 Member Join Date: Jul 2009 Location: Bulington, Ky Posts: 359 Likes: 0 Liked 6 Times in 5 Posts	Re: car stumbles in the air! Well after 3 weeks of Bad Luck we went to the track and found the issue. Thanks for all your guys help. It turn out to be the button!!!

06-25-2011, 12:54 PM	#40
junior barns Senior Member Join Date: Jun 2006 Posts: 539 Likes: 11 Liked 20 Times in 14 Posts	Re: car stumbles in the air! what button?