JUMPSTER93 Posted October 20, 2012 Report Share Posted October 20, 2012 I just got my new motor started and when I turn it off, fuel drips through one of the Venturi boosters down the intake and floods the motor. Anybody have any suggestions on what would cause fuel to drip, and why would it drop only through one booster and not both? Thanks Link to comment Share on other sites More sharing options...
champkrt1 Posted October 20, 2012 Report Share Posted October 20, 2012 I just got my new motor started and when I turn it off, fuel drips through one of the Venturi boosters down the intake and floods the motor. Anybody have any suggestions on what would cause fuel to drip, and why would it drop only through one booster and not both? Thanks Hey, call Brandon Buhler @ TCC carbs, 225-806-4487. He is a incredibly helpful guy. Tell him I sent ya. Eddie Link to comment Share on other sites More sharing options...
jwmbishop Posted October 20, 2012 Report Share Posted October 20, 2012 change body gasket and PV and gasket then make sure the jets are seated and the idle screws are with 1/2 turn of each other. Link to comment Share on other sites More sharing options...
drdan Posted October 21, 2012 Report Share Posted October 21, 2012 If your only seeing "nozzle drip" from one side you may want to check for any obstructions in the main metering ( High speed ) air bleed on that side. That air bleed also acts as a siphon "break" to halt the flow of fuel when demand stops. ----- Dan Link to comment Share on other sites More sharing options...
4cylfordz Posted October 22, 2012 Report Share Posted October 22, 2012 as mentioned above the air bleeds are the likely culprit. located next to where the nozzle is mounted to the main body. they look like two small holes sometimes with screw in jets. though if it was me I would disassemble, clean and rebuild the unit. very simple to do and will keep your carb running strong for less than 30 dollars if you do it yourself. Link to comment Share on other sites More sharing options...
JUMPSTER93 Posted October 22, 2012 Author Report Share Posted October 22, 2012 I will clean the air bleeds. I have already torn down the carb 100% and rebuilt it so it is not a big deal to work on it. What is the exact drill bit size that should be used to clean them? From my understanding there is a large and a small air bleed that are accessible through the top next to the squirters. Link to comment Share on other sites More sharing options...
drdan Posted October 23, 2012 Report Share Posted October 23, 2012 High speed air bleed ( main metering ) size is dependent on a lot of factors ( emulsion pkg. in the metering block, booster signal etc.. ) It is the final say so on fuel curve. Somewhere in the .029 to .031 range would be a close starting point. Some builders use larger bleeds depending on when they want to activate the boosters & what they believe best for their pkg. --- Regards --- Dr. Dan Link to comment Share on other sites More sharing options...
champkrt1 Posted October 24, 2012 Report Share Posted October 24, 2012 High speed air bleed ( main metering ) size is dependent on a lot of factors ( emulsion pkg. in the metering block, booster signal etc.. ) It is the final say so on fuel curve. Somewhere in the .029 to .031 range would be a close starting point. Some builders use larger bleeds depending on when they want to activate the boosters & what they believe best for their pkg. --- Regards --- Dr. Dan, Performance Specialists. Yikes, my bad for not referring to Dr Dan as well! Link to comment Share on other sites More sharing options...
JUMPSTER93 Posted October 25, 2012 Author Report Share Posted October 25, 2012 Drdan was exactly right. Thanks for the help in diagnosing the problem. What is your phone number, I may send you the carb to go through over the off season. The high speed air bleed was completely plugged and not allowing proper air fuel atomization to occur. Thanks again!!! Link to comment Share on other sites More sharing options...
drdan Posted October 25, 2012 Report Share Posted October 25, 2012 Glad to hear you got the problem resolved! Been at this about 40 yrs. or so. Dan Finn Best Regards !!! Link to comment Share on other sites More sharing options...
jwmbishop Posted October 30, 2012 Report Share Posted October 30, 2012 If your only seeing "nozzle drip" from one side you may want to check for any obstructions in the main metering ( High speed ) air bleed on that side. That air bleed also acts as a siphon "break" to halt the flow of fuel when demand stops. ----- Dan Thanks! I was not sure where the siphon broke... Link to comment Share on other sites More sharing options...
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