Holley accelerator pump diagram Incorrect accelerator pump shot 1. INSTALLATION: 1. Gas is leaking out the back of the accelerator pump and down the outside of the carburetor. For example, a pump nozzle stamped “35” is drilled . No rating value Same page link. Accelerator pump cams on Holley carbs can be swapped out to deliver advanced or delayed accelerator pump delivery depending on your engine's normal idle speed. Diagrams: 1964-67 Single Feed Holley Carburetor Components (click to enlarge) Dual Feed Holley Carburetor Components & 3811, bowls, vacuum secondary, throttle shafts, choke shaft, throttle blades, & more, for use with carburetor with accelerator pump cover with clutch head screws: 42. Skip to. That kit and a jet kit make tuning a Holley much consider this inexpensive device. Manufacturer's Defect Warranty. The tightening specification for main jets is 30 to 40 in-lbs. View All. 050" showing, very close to fully closed), while still allowing the usual . Produced with CyberLink PowerDirector 12. (PN 558-407) A2 Fuel Pump Out (+12v) (10A Max) B2 IAC A Hi NOMENCLATURE - MODEL 2010 Ref. 020" travel remains in the accelerator pump How-to adjust the accelerator pump on Holley carburetors to avoid stumbling and hesitation upon acceleration. In some cases, some guys need to keep the vintage carburetor's appearance HOLLEY CARBURETION 143 8 127 133 147 TYPICAL VIEW ILLUSTRATION NO. That’s the thing, all the videos and articles how how to test adjust the primary side only when it comes to a bog or hesitation. I was in the process of reassembling the carb and i noticed the pump only moves down like a half inch or so. If it is an instantaneous off idle bog, the accelerator pump may be the real problem. Starters. (PART1) Indepth explaination of the Holley accelerator pump. See the appropriate service manual for transmission adjustment. Seat throttle valves in bores by backing off curb idle speed screw and opening choke valve. I get tons of messages everyday about hesitation on acceleration or the Join the Mopar Rebellion!http://www. It is designed Holley 4150 and 4160, 4 barrel carburetor accelerator pump circuit. A need to know. I see fuel on the accelerator pump gasket. If it does not start on the first attempt, rotate the throttle a couple of additional times, then try starting the engine again. 5 INSTALLATION: Remove the fuel line at the pump and blow the line clean with compressed air. 34-1 102 153155 126 117 MODEL 4150 164 Pump Lever Adj. (0) Write a review . At wide open throttle the pump lever should be set to . The retainer can be replaced by a washer, but you need to the accelerator pumps shot should hit the lower edge of the booster nozzle for better atomization, so the squirter you've selected should in part depend on the type of booster, accelerator pump volume and the distance The pump levers should begin compressing the pump diaphragms as soon as the linkage begins to move. The accelerator pump diaphragm: no leaks. 358 Posts. Fuel level too low 4. Carburetors wear out and will usually NOTE: If installing on a GM vehicle where the throttle cable needs to utilize the large hole in the top of the throttle lever, a part # 1952 GM throttle linkage cable attachment bracket will be needed. It should not be necessary to continue operating the throttle while attempting to start the engine. Product Specifications. W. Did some digging around to try and find a better Holley offers a wide variety of replacement and performance enhancing components for your Carburetor. Throttle Body Gasket Fuel Bowl Plug Gasket Fuel In let Filter Gasket Flange Gasket Throttle Plate - Primary . 035". cleaner, the pump diverter valve (if equipped), AC/Cruise, and/or the temperature sensing valve. Eliminates flat spots off idle or at any other RPM range choke will close and the accelerator pump nozzles should discharge fuel. Wiring Shop. Sometimes these valves can stick. This is the type of accelerator pump a 750/3310-2 has, there is no check ball. Pump shooters or Nearly all Holley accelerator pump circuits use this needle directly underneath the discharge nozzle. Buy Holley 135-10 Carburetor Diaphragm: Accelerator Pumps - Amazon. The 0-6210 is a Model 4165в„ў Spread Bore designed to fit several applications. Warranty: 90 Day Limited Warranty. Holley Accelerator Pump Discharge Nozzles (Aftermarket) comes with 2 gaskets : 1ea. As you go towards the float bowl you get richer and leaner as you go the other %PDF-1. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Discussing the Holley accelerator Pump Set-up and tuning. author. Footage taken from Holley Carburetor Installation & Tuning DVD These carburetors have been designed and calibrated as a universal replacement carburetor for passenger cars and light truck applications equipped with V-6 and V-8 engines. 5 %µµµµ 1 0 obj >>> endobj 2 0 obj > endobj 3 0 obj > endobj 4 0 obj >/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 792 612] /Contents 5 0 R 1. Fuel Bowl Pump Diaphragm (proper installation) Before replacing the pump diaphragm cover, check for warpage by laying the cover on a sheet of emery Quick video today to go over tuning on the accelerator pump circuit on a holley carb. Learn how to fine-tune t Tom Kise demonstrates how to properly adjust the accelerator pump arm on a Holley carburetor. The arm #23 slips into the accelerator pump slot above the retainer. LS Engine Looking through my Holley book the only competition 750 DP listed with a 50cc secondary pump was a Methanol-Calibrated version. Accelerator Pump Removal. Main content About this item SeaEagles 2Pieces135-10 Carburetor 30cc Accelerator Pump Diaphragm Fit For Holley 4150 4160 Carburetors | Replace To Holley 135-5, Holley 135-10 Holley 135-12 30cc Accelerator Good question about hole #1 vs. Video. Ask a question . Throttle Bodies. These quality pieces ensure that the job is done right and help to keep your carb functioning like new. If the original throttle cable is too large, a new throttle ball or stud is needed (Holley® P/N 20-2, 20-38, or 20-40). Subscribe now to make sure you don't miss any of our new product ACCELERATOR PUMP The accelerator pump system consists of three main components: the pump diaphragm, the pump cam and the pump nozzle. Air filter dirty or plugged 2. If I try to accelerate, it bogs/wants to die. 8. 30cc accelerator pump diaphragm (black) Rubber w/o Screws Whats the best way to find a leak? I rebuilt my 3419 over the winter. Adjust the linkage Especially “the” accelerator pump circuit. Its purpose is to inject a certain amount of fuel down the throttle bores when the throttle is opened. I have all the parts now. 2. Description Ref. Remove the “C” clip at the throttle lever. Product Details. Part #: 1008-844 Line: HLY. 5 %µµµµ 1 0 obj >>> endobj 2 0 obj > endobj 3 0 obj >/ExtGState >/Font >/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R Years ago, some Holley fuel-bowl screws had a slotted head that required using a flat-blade screwdriver. Along with new metering block and bowl gaskets. It comes with an assortment of shooters and other related parts. Fuel Tanks. If the original throttle cable is too large, a new throttle ball or stud is needed (Holley® P/N 20-2 or 20-38). Screw Pump Discharge Nozzle Screw Fast Idle Cam Plate Screw & L. Incorrect accelerator pump nozzle 3. NOMENCLATURE - MODEL 4010 Ref. For example, a #40 shooter will have a hole size that measures 0. I replaced the diaphram and it doesn't spit fuel out anymore, but it is still leaking where the pump housing and diaphram mate to the carb. If so, remove the nozzle and gently pry on the top with a tiny screwdriver. Defective accelerator pump 2. Have a friend pull back and hold throttle lever wide open as if the gas pedal is Find Holley Accelerator Pump Diaphragms and get Free Shipping on Orders Over $109 at Summit Racing! Holley offers their accelerator pump diaphragms for all of their carburetors. Remove the accelerator pump intake check valve (12) and accelerator pump assembly (10). The point at which a liquid turns to a vapor is its boiling point, and this is dependent on pressure and Tuning the accelerator pump circuit on a 4150 and 4160 style carburetor isn't complicated, but a few of the parts in the process draw lots of confusion or mi The accelerator pump cylinder is part of the air horn casting and connects to the discharge nozzle in the primary section through a short flexible tube (Fig. Post by Troy Patterson » Sat Jul 31, 2010 10:32 pm. Reasons for installi Once running and warmed up, I can drive the car, as long as I don't need to accelerate hard. 015" of residual travel in the pump arm at WOT. com FREE DELIVERY possible on eligible purchases. Material: Fluoroelastomer (FPM) Unit of Measure: 3. you should fully understand how to adjust your accelerator pump after this video. How does the accelerator pump work. The center hole is for the standard setting. Carburetor loose on manifold/ Vacuum leak 5. The pump stem you see on the back of the carburetor is part of the accelerator pump diaphragm Holley 94 accelerator pump tuning Early V8 (1932-53) Thank you sir I appreciate that. Material: Fiber. You can now start the engine. When you look through Holley literature and videos regarding tuning the accelerator (squirter) pump cam, most say to use Position 1 (smaller squirt later) for heavy cars and Position 2 (bigger squirt earlier) for a light car. 5 %µµµµ 1 0 obj >>> endobj 2 0 obj > endobj 3 0 obj >/Font >/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/Annots[ 17 0 R 21 0 R 22 0 R 24 0 R 25 0 R 26 0 R Accelerator pump cams on Holley carbs can be swapped out to deliver advanced or delayed accelerator pump delivery depending on your engine's normal idle speed. This underside view reveals the entire accelerator pump system, including the throttle linkage (1), accelerator pump cam (2), pump linkage (3), and accelerator pump cover EXPLODED VIEW - MODEL 4165/4175 NOMENCLATURE - MODEL 4165/4175 Ref. Corvette & Camaro Headlight Kits. The intake check valve assembly acts as a bottom closure for the pump cylinder. From replacement fuel bowls to power valves and jets and everything thing in between. carburetor-parts. Description 1 Fast Idle Cam Plate Screw 2 Choke Lever and Swivel Assembly 3 Fast Idle Cam Plate 4 Fast Idle Cam Spring 5 Fast Idle Cam 6 Choke Rod Retainer 7 Choke Lever Back-up Plate 8 Choke Rod Lever Molded 9 Choke Lever Spring 10 Choke Spring Retainer Washer 11 Push Nut Fastener 12 Fast Idle Holley accelerator pump nozzles are stamped with a number (Figure 5) which indicates the drilled pump hole size. com/ To understand why you need an accelerator pump, you need to understand the physics of liquids and vapors. A secondary bog will usually occur in the 2000 to 3000 rpm range. The #1 & #2 refers to the holes in the throttle lever for the screw that attaches the cams, positions 1 and 2. With the pedal held firmly against a stop or the floorboard, pull the carburetor to its wide open position. Let’s first describe exactly how the accelerator pump circuit works and then we can get into tuning. With the choke housing swung out of the way, remove the 3 screws holding the secondary throttle diaphragm assembly. Still no pump shot. This is the carburetor system that is most responsible for having good, crisp, off-idle throttle response. An Article About. The idle air bleed jets: open. After siting overnight there is about 1/2 a teaspoon of fuel on the intake just under the accelerator pump. Learn the proper way to install the diaphragm and what if the housing leaks? Menu. Description 1 Fuel Bowl Screw (short) Primary 2 Fuel Bowl Screw (long) Primary 3 Fuel Bowl Screw Gasket Primary 4 Fuel Bowl Assembly Primary 5 Baffle Plate Primary 6 Float Retainer Primary 7 Float Shaft Bracket Screw & Lockwasher 8 Float Shaft Retainer The pump levers should begin compressing the pump diaphragms as soon as the linkage begins to move. 7. 1a. G654: Accelerator Pump Discharge Nozzle gasket x 10: x10: G654: Fuel Filters: Fuel Filters Holley Diagrams 4150 4160 2010, 2300, 4010, 4011, 1. Description 1 Dashpot Nut 2 Dashpot Assembly 3 Da shpot Bracket Screw 4 Dashpot Bracket 5 Throttle Lever Extension How To Set & Tune Holley Carburetor Accelerator Pump Circuits. Fuel Pump Regulator and Filter. Incorrect power valve 6. See application chart below in tech resources for specific details. No. com/forumAny Questions? We will help as best we can, but please hit us up on the forum: http://www. Undo your throttle return string if your doing this on the car. Holley 4150 & 4160 accelerator pump diaphragm. Improper ignition timing 3. AISAN; CARTER; Holley 4150 & 4160 Pump Diaphragm. It acts as an anti-drain-back valve to retain fuel in the circuit above the float level. I then replaced with a different fuel bowl and accelerator pump of another carb. Carburetor Installation and Tuning. Then replace the nozzle and operate the linkage. The common screws used today have a hex head, which require a 5/16-inch wrench. Support Video. An accelerator pump cam, installed on the linkage, Holley Replacement Carburetors are engineering to improve performance and keep you emission legal. The Holley 50cc accelerator pump will substantially increase fuel capacity over the standard 30cc pump system. All the others list 30cc front and rear - but it is an older holley book. Alternators. On my Holley carb the accelerator pump was spitting fuel out when it pumped. lonest Accelerator pump link adjustment. Tips include: How to check for the clearance between the accelerator pump diaphragm arm & operating lever; %PDF-1. 2). BY CARB TYPE. Holley street carbs and OEM replacement units use piston- type or diaphragm- type accelerator pumps. What else can I check? Footage taken from Holley Carburetor Installation & Tuning DVD This manual contains information and diagrams related to wiring most Holley EFI products including ECU’s, ignition systems, nitrous Intended for use for Drive By Wire throttle body operation It contains a dedicated pin for the “multi-map selector”. Thus, Holley can not guarantee an answer or timing on an answer. Part #: 12-3001 Fuel Pump Regulator and Filter; Fuel Tanks; LS Engine Components; LS Gaskets; LS Swap Radiators; LS Throttle Bodies; LS Tools; LS Valve Covers & Engine Appearance; LS and LT Accessory Drives; LS and LT Drivetrain; LS and LT Ignition Products; LS and LT Nitrous Systems; LS and LT Swap Oil Pans; View All ‌ Engine Swap Parts. (D) Accelerator pump passage:This transfers fuel from the accelerator pump to the outlet nozzle. If this is the case Holley Accelerator Pump Discharge Nozzle Gasket - 1008-844. 040-inch in diameter. Drove a few miles to a gas station, filled up, and the car started up and drove home. 3. i use a wideband The accelerator pump has a delayer spring that goes over the stem (20), then the retainer (21). UPC: 90127120484. Pump connector rod must be installed in correct slot of accelerator pump rocker arm. If vacuum Holley Carburetor 50cc ACCELERATOR PUMP DIAPHRAGM Sold as 4 Pack Fits Holley Model 2300-4150- 4160-4500 2 & 4 bbl Carburetors Sold as 4 Pack (4) Compatible with Today’s Complex Fuels CCS Kits are supplied As far as pump cams go, you're right in that different cams will provide different amounts of fuel, at different positions of throttle. The throttle shaft lever will generally have 3 holes, sometimes 4. Restricted fuel filter 4. Holley -10AN To 7/8-14 Inch Electric Fuel Pump Repair Kit - 12-3001. 95 : B4026: 66-67: SCREW SET - metering plate to main Although Holley employees will take part in answering questions from time to time, your questions may or may not be answered by Holley personnel. A Holley jet driver safely captures the jet and eliminates accidental slippage or burring of the jet’s drive slot. Description 1 Choke Lever and Swivel AssemblyFast Idle Cam Plate Screw 2 3 Fast Idle Cam SpringFast Idle Cam Plate 4 5 Fast Idle Cam 6 Choke Rod Retainer 7 Choke Lever Back-up Plate 8 Choke Rod Lever Molded 9 Choke Spring Retainer WasherChoke Lever Spring 10 11 Fast Idle Cam Lever ScrewPush Nut these in similar locations on the Holley throttle lever. Should I put rtv or somethign on the diaphram? Holley 1920 Accelerator Pump. 015" to . Play in the pump arm linkage will delay the fuel discharge, and the result is usually a stumble or hesitation as the carburetor begins to open. Compare. lonestarmopars. Remember if you change you pump cam to readjust your accel pump linkage, you don't want to over extend it. 020" travel remains in the accelerator pump %PDF-1. And when they’re activated, some amount of At Mike's Carburetor Parts we offer you a full line of US-made 1, 2 & 4 barrel Holley carburetor parts including top-quality carburetor rebuild kits, governor diaphragms, accelerator pumps, jets, throttle shaft seals, floats, Holley flange If you would like to help support our channel, our CashApp is $AirandFuelGuru Accelerator pump cam list by colorBlack lightest/least aggressive PinkWhiteR What Causes Accelerator Pump Failure? The accelerator pump works whenever you drive, using your vehicle regularly will cause the pump, as well as the carburetor, to wear down. This video takes you through basic accelerator pump arm setup techniques and then looks at tu Today I'll ne showing you guys how easy it is to retrofit your factory holley carbs so that you can install a 50cc accelerator pump kit. In the days of `57 ford 312’s and `60 Holley Accelerator Pump Diaphragm ; Holley Accelerator Pump Diaphragm - 135-10 Part # 135-10 Line: HLY. If the original throttle cable is too large, a new throttle ball or stud is needed (Holley P/N 20-2, 20-38, or 20-40). Remove the throttle cable ball and automatic transmission kickdown stud (if any) from the original carburetor, and mount these in similar locations on the Holley® throttle lever. Thanks for watching Always Creative Design!Stay up to date by subscribing and turning on the notification bell!Website for 3D print files and merch https://w Today I'll ne showing you guys how easy it is to retrofit your factory holley carbs so that you can install a 50cc accelerator pump kit. Below is pic of Holley pump cams, and how they deliver fuel based on throttle positions. Bill Tichenor. Fuel in the bowl feeds the accelerator pump reservoir through a one-way check NOMENCLATURE - MODEL 4150/4160 Ref. Always check your accelerator linkage to be sure it is pulling the throttle lever straight. Related Articles Holley accelerator pump nozzles are all stamped with a number that coincides with the diameter of the hole size. DO NOT use the procedure where the coil wire is disconnected, the engine How the accelerator pump works on the Holley 94, 2100 & 2110 2 barrel carburetor?Parts for this carburetor can be found at: https://www. these in similar locations on the Holley® throttle lever. hole #2. Here's my best guess: Hole #1 with the idle set so the throttle plates are either closed or in a "normal" relationship to the off-idle discharge slots (. 5 %µµµµ 1 0 obj >>> endobj 2 0 obj > endobj 3 0 obj >/ExtGState >/Font >/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R Accelerator Pump Conversion Kit - 50ccPart # 20-11 Models 2300, 4150 and 4160 Instantaneous response! Pull strongly throughout the RPM band! A “must” for tunnel ram . At wide open throttle, check to be sure that . Categories / Engine Upgrade for check ball style acc. Holley makes an accelerator pump tuning kit. pump on Holley float bowls. Measure distance between top of air horn and how to replace a holley accelerator pump Dive into the details of adjusting the accelerator pump on your Holley 2245 2 Barrel Carburetor with this comprehensive video guide. Secondaries opening too soon Lack of power, Sluggish, or Spongy 1. I've had a collection of older Holley float bowls I've had to remove due to mediocre functioning accelerator pumps with aged, old style check ball system. 015 of an inch (feeler gauge). (E) High-speed air-bleed: Air from the high-speed bleed enters the metering block here to be mixed %PDF-1. The brown is a 50cc pump cam; the chart is for the 30cc pump cams. The throttle lever is welded to the throttle shaft, however, repeated wide open throttle use without a positive stop will eventually begin to create slop in the throttle lever, resulting in inconsistent performance. Piston pumps don’t offer quite as positive a seal as diaphragm-type pumps. oerrv itzs djtcecb rytt ydxa bjdi jhppon tnkg bxs cdatlm xux tpjt hdcm frfur udydyc