Still Having problems with the PROBLEM CHILD-Lean/miss/stumble/backfire!!!!
05-18-2003, 08:37 AM
#21
I looked at a pic of the GM and it didn't have them.
Woke up this morning wondering why is was thinking carb??
Your right, that doesn't make sence.
It still seems like an intake gasket leak.
The GM shows a water cross over fitting at the center.
The edelbrock does not have this?
Is that a water hole at the center on the head?
Woke up this morning wondering why is was thinking carb??
Your right, that doesn't make sence.
It still seems like an intake gasket leak.
The GM shows a water cross over fitting at the center.
The edelbrock does not have this?
Is that a water hole at the center on the head?
05-18-2003, 08:45 AM
#22
Is this the gasket your using?
12529094 Gasket, Intake Manifold "Vortec Design"
This is the production gasket for all Vortec design cylinder heads (four-bolt attachment of manifold to cylinder heads P/N 12529093 and 12558060).
Technical Notes: This gasket requires the use of GM attachment bolt P/N 12550027 because the bolt has a ball design on the end that seats in the head so it will not crush the intake manifold gasket. This kit includes (2) gaskets.
12529094 Gasket, Intake Manifold "Vortec Design"
This is the production gasket for all Vortec design cylinder heads (four-bolt attachment of manifold to cylinder heads P/N 12529093 and 12558060).
Technical Notes: This gasket requires the use of GM attachment bolt P/N 12550027 because the bolt has a ball design on the end that seats in the head so it will not crush the intake manifold gasket. This kit includes (2) gaskets.
05-18-2003, 09:28 AM
#24
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Originally posted by convincor
Is this the gasket your using?
12529094 Gasket, Intake Manifold "Vortec Design"
This is the production gasket for all Vortec design cylinder heads (four-bolt attachment of manifold to cylinder heads P/N 12529093 and 12558060).
Technical Notes: This gasket requires the use of GM attachment bolt P/N 12550027 because the bolt has a ball design on the end that seats in the head so it will not crush the intake manifold gasket. This kit includes (2) gaskets.
Is this the gasket your using?
12529094 Gasket, Intake Manifold "Vortec Design"
This is the production gasket for all Vortec design cylinder heads (four-bolt attachment of manifold to cylinder heads P/N 12529093 and 12558060).
Technical Notes: This gasket requires the use of GM attachment bolt P/N 12550027 because the bolt has a ball design on the end that seats in the head so it will not crush the intake manifold gasket. This kit includes (2) gaskets.
BH
(Still on suicide watch and life support
)
Last edited by BAD-HABIT; 05-18-2003 at 09:36 AM.
05-18-2003, 03:24 PM
#26
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I am not sure how detailed you have checked the fuel supply.According to my manual you need to check both fuel pressure AND volume to be sure that you have adequate fuel supply. the pressure should be 7-9 psi (also at WOT!)and the volume at idle should be "a pint per 20 seconds". If you have a volume problem it will show as fuel starvation at higher speeds, or more precisely as starvation in sustained high torque situations .
05-18-2003, 04:43 PM
#27
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Edelbrock told me that 2 lbs was all that was needed for idle and 4lbs at W.O.T. No Granted it sounds like Im low on pressure but if pressure was the problem wouldn't it show up more at W.O.T. The miss I get is at cruise. When at W.O.T. I don't get the miss... Am I "missing
" something here? Keep the ideas comments coming PLEASE!!!
By the way if you happen to see this "Problem Child" please fix her or put her out of her misery
" something here? Keep the ideas comments coming PLEASE!!!By the way if you happen to see this "Problem Child" please fix her or put her out of her misery
Last edited by BAD-HABIT; 05-18-2003 at 04:46 PM.
05-18-2003, 05:09 PM
#28
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Well, I am thinking more about the surging. That definitely points towards a lack of fuel. If the surging appears when you have the throttle at the end of the travel(irrespective of rpm) such as when accelerating hard, that would point towards the fuel pump not being able to keep up with the fuel demand. In principle the highest demand on the pump per "pumping action" or revolution would be if you are at idle and push the throttle all the way. If you have a volume problem , it would then start surging as soon as the bowl in the carburator is emptied.
05-18-2003, 05:23 PM
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Sounds to me like the ideal situation to use a vacuum gage. Has this been done?
Also, from my experience, I don't put much credence in what the tech line kids (edelbrock in your case) have to say. I generally teach them things. They are not always the sharpest pencils in the box.
Fuel pressure may not be the problem causing these symptoms, but it is too low and needs to be corrected asap.
my .02
BT
Also, from my experience, I don't put much credence in what the tech line kids (edelbrock in your case) have to say. I generally teach them things. They are not always the sharpest pencils in the box.
Fuel pressure may not be the problem causing these symptoms, but it is too low and needs to be corrected asap.
my .02
BT
Last edited by blue thunder; 05-18-2003 at 05:28 PM.
