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Thread: perplexed

  1. #1
    socalta Guest

    Smile perplexed

    BTW ... a previous post about the six screws vs eight was oddly timely. I will now go back and remove the two ..

    I have a 4776 double pumper and I have an odd problem. I have the 30 cc diaphrams and springs. When I prime the car to start by manually moving the throttle cable, the squirter off of the main bowl does nothing while the squirter for the secondary is on a hair trigger. I have swapped the diaphrams front to back... same thing withe springs. I even swapped out the metering block but still nothing. I have to literally push down very hard with my finger to get the squirter to eject fuel. I even swapped the squirters from one side to the other.. I am totally at a loss to understand what I am missing or what I need to do. Any ideas??

  2. #2
    Join Date
    Dec 2009


    Does the throttle linkage actuate the accelerator pump lever? (Holley Tech - "Accelerator Pump" video)

    Yes, you can use all eight base plate screws, if you use red threadlocker and tighten them good.
    Last edited by Danny Cabral; 07-15-2012 at 08:56 AM.
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS T/W 11R 205 heads, 232°-244° duration/.623" lift/114° LSA camshaft, 12:1 C/R, TFS R-Series FTI ported intake, BBK 80mm T/B, Holley Dominator MPFI & DIS, 36-1 crank trigger, 1x cam sync, 200A 3G alternator, Optima Red battery, R134a A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans, Frostbite 3-core aluminum radiator, Pypes dual 2.5" exhaust, off-road X-pipe, shorty headers, -6AN fuel system plumbing, Walbro 255 LPH pump, S&W subframe connectors, BMR upper & lower torque box reinforcements, LenTech Strip Terminator wide-ratio AOD, 3000 RPM converter, B&M Hammer shifter, Stifflers trans crossmember & driveshaft safety loop, FPP aluminum driveshaft, FPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 M/T Street Comp tires.

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