fuel siphoning from the acc squirter. - Moparts Forums

Register Log In Moparts Forums Unlawfl's Race & Engine Tech fuel siphoning from the acc squirter.

Print Thread

fuel siphoning from the acc squirter. #490837 10/07/09 06:23 PM 10/07/09 06:23 PM
Joined: Jan 2004 Posts: 13,247 Mt. Vernon, Ohio dartman366 OP I Live Here
dartman366 OP I Live Here Joined: Jan 2004 Posts: 13,247 Mt. Vernon, Ohio	while revving the motor up slowly and watching the squirter it all of a sudden start's spewing fuel from the hole's, what is the best way to fix this as I know it has to be making the car pig rich going down the track. Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.

Re: fuel siphoning from the acc squirter. [Re: dartman366] #490838 10/07/09 06:24 PM 10/07/09 06:24 PM
Joined: Jan 2003 Posts: 4,616 Kissimmee Fl. D dusturbd340W5 master
dusturbd340W5 master D Joined: Jan 2003 Posts: 4,616 Kissimmee Fl.	I would check the pump arm first and make sure its not to tight 70 duster full chassis super pro 416 CNC Indybrock heads 727 w/brake best so far 1.212 60 6.219 in 1/8 at 110.88 9.768 at 137.81 1/4

Re: fuel siphoning from the acc squirter. [Re: dartman366] #490839 10/07/09 06:31 PM 10/07/09 06:31 PM
Joined: Jan 2003 Posts: 5,894 Florida Locomotion master
Locomotion master Joined: Jan 2003 Posts: 5,894 Florida	There should be a small, thin pointed cylinder in the squirter passage below the squirter screw. It points down to close the passage and keeps fuel from being siphoned out by vacuum. It is small enough to where it is not a restriction and is pushed up by the fuel from the accellerator pump.

Re: fuel siphoning from the acc squirter. [Re: dusturbd340W5] #490840 10/07/09 06:35 PM 10/07/09 06:35 PM
Joined: Jan 2003 Posts: 32,394 Q Quicktree I Win
Quicktree I Win Q Joined: Jan 2003 Posts: 32,394	Quote: I would check the pump arm first and make sure its not to tight not a lot more that can make it do that. check fuel pressure also.

Re: fuel siphoning from the acc squirter. [Re: Quicktree] #490841 10/07/09 06:44 PM 10/07/09 06:44 PM
Joined: Mar 2006 Posts: 9,910 Eighty Four, PA B G Racing master
B G Racing master Joined: Mar 2006 Posts: 9,910 Eighty Four, PA	If that little check valve below the squirter is not seating or sticking the venturaes and intake signal will draw fuel.Make sure it is free and clean and the squirter and gasket is seated and not leaking. [IMG]http://i430.photobucket.com/albums/qq21/ajcasini/max_zpsdppwd9km.jpg[/IMG]

Re: fuel siphoning from the acc squirter. [Re: dartman366] #490842 10/07/09 06:50 PM 10/07/09 06:50 PM
Joined: Jul 2005 Posts: 8,647 ELYRIA,OH B blownzoom440
blownzoom440 B Joined: Jul 2005 Posts: 8,647 ELYRIA,OH	switching to the squirters with the tubes sticking into the ventury is 1 way to stop it.if you have had the carb for a while and it just started well you may have another problem.

Re: fuel siphoning from the acc squirter. [Re: Locomotion] #490843 10/07/09 07:19 PM 10/07/09 07:19 PM
Joined: Jan 2003 Posts: 8,180 Detroit, MI CokeBottleKid master
CokeBottleKid master Joined: Jan 2003 Posts: 8,180 Detroit, MI	Quote: There should be a small, thin pointed cylinder in the squirter passage below the squirter screw. It points down to close the passage and keeps fuel from being siphoned out by vacuum. It is small enough to where it is not a restriction and is pushed up by the fuel from the accellerator pump. 5 bucks says he lost the check valve . Failing that they do make anti-pull over squirters for this reason...

Re: fuel siphoning from the acc squirter. [Re: CokeBottleKid] #490844 10/07/09 07:44 PM 10/07/09 07:44 PM
Joined: Jan 2004 Posts: 13,247 Mt. Vernon, Ohio dartman366 OP I Live Here
dartman366 OP I Live Here Joined: Jan 2004 Posts: 13,247 Mt. Vernon, Ohio	Quote: Quote: There should be a small, thin pointed cylinder in the squirter passage below the squirter screw. It points down to close the passage and keeps fuel from being siphoned out by vacuum. It is small enough to where it is not a restriction and is pushed up by the fuel from the accellerator pump. 5 bucks says he lost the check valve . Failing that they do make anti-pull over squirters for this reason... Check valve is in place, don't know if it has been doing this for awhile or not , this is the first time we have done this, as we were trying to locate a miss, and reved it up a little and held it there steady when it started doing it. Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.

Re: fuel siphoning from the acc squirter. [Re: dartman366] #490845 10/08/09 04:29 PM 10/08/09 04:29 PM
Joined: Aug 2003 Posts: 43,157 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,157 Bend,OR USA	Sounds like there may be a small piece of someting stuck in between the check valve and the check valve seat That or the check valve is in upside down Pointy end goes down Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: fuel siphoning from the acc squirter. [Re: Cab_Burge] #490846 10/09/09 03:28 PM 10/09/09 03:28 PM
Joined: Jan 2003 Posts: 9,982 Ansonia, CT C CJK440 master
CJK440 master C Joined: Jan 2003 Posts: 9,982 Ansonia, CT	I think older holleys used a ball with a cylindrical weight stacked on top. 2017 Contusion Blue Challenger T/A 392 M6 "BLKNBLU"

Re: fuel siphoning from the acc squirter. [Re: CJK440] #490847 10/09/09 06:40 PM 10/09/09 06:40 PM
Joined: Jan 2003 Posts: 27,421 Balt. Md 3 383man Too Many Posts
383man Too Many Posts 3 Joined: Jan 2003 Posts: 27,421 Balt. Md	Quote: I think older holleys used a ball with a cylindrical weight stacked on top. Yes they did you are correct. That is the acc pump discharge check valve or ball as they call it. It lifts up when fuell is pushed up to it by the acc pump when you step on the gas. But it needs to seat when off the gas as the pump draws fuel back into its plunger circuit and it it dont seat it can draw air in also and cause a stumble. And as said it can cause fuel to siphon out. Ron

Moderated by Al_Alguire, Hotwheelsjr, moparts, not_a_charger, RangerDan440, tboomer

Hop To

Powered by UBB.threads™ PHP Forum Software 7.7.1