CARBURETORS CA225 SERIES For LP and Natural Gas

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CA225 Series – 237 HP (176.7 kW)Carburetors consist of a mixer and throttle body assembly, and an optional airhorn. The mixer has a replaceable air valve assembly. The charts belowdescribe these components and the most common combinations available asCA225 Series carburetors. Other combinations of air valve assemblies and airhorns can be built for your specific requirements. (Minimum quantities may berequired.)

Letters in ( ) refer to the dimension diagrams on this page. Numbers in ( ) indicate metric dimensions.

ThrottleBody

Assembly

Mixer

AIR VALVE ASSEMBLY (Item No. 10 on Parts List)Part No. Model No. DescriptionN00-7407A N-AV1-12-2 Standard, silicone diaphragmN00-7415A N-AV1-1245-2 Feedback, silicone diaphragmN00-7418A N-CV1-12-2 NG, silicone diaphragm1309-6069 N/A LP Rich Flow, silicone diaphragm

2-BARREL FLANGE ADAPTERS (Item No. 37 on Parts List)Part No. Model No. DescriptionN1-7231 BT2-11 1-1/4" SAE (31.75mm)N1-7233 BT2-12 1-1/2" SAE (38.1mm)N00-7237 N-BT2-13 2" SAE (50.8mm) HolleyN00-7236A N-AT2-13-1 *

AIR HORN ASSEMBLY (Not shown on Parts List)Part No. Model No. Description Diameter

N00-4043 A2-2 Aluminum 5-1/8" (130.18mm)N00-4044 N-A2-3 Aluminum 2-5/8" (66.55mm)N00-4046 N-A2-6 Aluminum 3-1/16" (77.79mm)

NN--CCAA222255 AAiirr HHoorrnn

THROTTLE BODY ASSEMBLIES (Item No. 39 on Parts List) Also see Throttle Components section.Center to Center

Bolt Spacing Bore Height Shaft Dia.Part No. Model No. Flange (A) (B) (F) (G)N00-7212 N-AT2-4-2 1-1/2" SAE (38.1mm) 2-15/16" (74.61mm) 1-11/16" (42.86mm) 2-3/4" (69.85mm) 5/16" (7.9mm)N00-7216 N-AT2-5 1-3/4" SAE (44.45mm) 3-5/16" (84.14mm) 1-15/16" (49.21mm) 3-1/4" (82.55mm) 3/8" (9.5mm)N00-7220 N-AT2-6 2" SAE (50.8mm) 3-9/16" (90.49mm) 2-3/16" (55.56mm) 3-1/4" (82.55mm) 3/8" (9.5mm)N00-4220A N-AB1-24-1 Duplex 1-3/8" x 3" 1-3/16" (30.1mm) 7/16" (11.09mm)

(34.93 x 76.2mm)

MIXERS (Item No. 17 on Parts List) The chart below lists the most common mixer assemblies. Please contact factory for other assemblies that can be built to your specific requirements.

AIR VALVE OPTIONS Fuel InletStandard Air Valve Feedback Air Valve NG Air Valve NPT

Mixer Part No. Mixer Model No. Mixer Part No. Mixer Model No. Mixer Part No. Mixer Model No. (E)N00-2803A N-CA225M-2 N00-2807A N-FB225M-2 N00-2801A N-225M-2R 3/4" (19.05mm)N00-2804A* N-CA225M-10-2 N00-2805A* N-FB225M-10-2 3/4" (19.05mm)NOO-2809A Rich Flow 3/4" (19.05mm)

(*) Adapter assembly for Holley 2-barrel mounting flange

Throttle 2-Barrel Flange toCarburetor Body Flange Air Air Base ofAssembly Mixer Assembly Adapter Horn Valve Width Height Air HornPart No Model No. Part No. Part No. Part No. Part No. Part No. (C) (D) (H)

N00-2609A N-CA225-11 N00-2803A N00-4220A N1-7231 — N00-7407A 6-1/4" (158.75mm) 5-3/4" (146.05mm) 3-1/2" (88.9mm)N00-2610A N-CA225-12 N00-2803A N00-4220A N1-7233 — N00-7407A 6-1/4" (158.75mm) 5-3/4" (146.05mm) 3-1/2" (88.9mm)N00-2611A N-CA225-13-1 N00-2803A N00-7236 — — N00-7407A 6-1/4" (158.75mm) 4-3/4" (120.65mm) 3-1/2" (88.9mm)N00-2612A N-225-13-1 N00-2801A N00-7236 — — N00-7418A 6-1/4" (158.75mm) 5-3/4" (146.05mm) 3-1/2" (88.9mm)N00-2617A N-CA225-30 N00-2803A N00-4220A N00-7237 N00-4043 N00-7407A 6-1/4" (158.75mm) 5-3/4" (146.05mm) 3-1/2" (88.9mm)N00-2621A N-CA225-52-2 N00-2803A N00-7212 — — N00-7407A 6-1/4" (158.75mm) 6-3/4" (171.45mm) 4-3/4" (120.65mm)N00-2623A N-CA225-62 N00-2803A N00-7212 — N00-4044 N00-7407A 6-1/4" (158.75mm) 6-3/4" (171.45mm) 4-3/4" (120.65mm)N00-2625A N-CA225-94 N00-2803A N00-7220 — — N00-7407A 6-1/4" (158.75mm) 7-1/4" (184.15mm) 5-1/4" (133.35mm)

CA225 CARBURETOR ASSEMBLIES (Configurable for feedback or NG)CARBURETORS COMPRISED OF: CARBURETOR ASSEMBLY DIMENSIONS

(*) Dual Fuel models

North AmericaNorth AmericaNorth America

For LP and Natural Gas CA225 SERIES CARBURETORS

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Note: Part numbers shown in BOLDFACE BLUE CAPITAL LETTERS are available for purchase. Minimum quantitiesmay be required. All parts are listed for reference purposes. Specifications subject to change without notice.

phone: 11--887777--663333--99116699 fax: 997700--448888--22001122 web: wwwwww..NNGGVVIINNAA..ccoomm

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7

8

910

12

13

141516

11

2021

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1922

2324

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5

4

25

2627

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2930

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3233 34

34153536

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ITEM PART NO. DESCRIPTION QTY.

1 N00-5244 N-G1-73, Gasket, Mixer to Air Horn 1

2 N6-1104 N-S1-47, Screw, 1/4-20 x 1" Hex Head SEMS 1

3 N00-6400 N-S1-3, Screw, 10-24 x 5/8" SEMS 5

4 N00-4513 N-C1-25, Cover, Air Valve 1

5 N00-6607 N-S2-17, Spring, Air Valve 1

6 N00-6408 N-S1-12, Screw, 8-32, Screw, 8-32 x 5/16" SEMS 5

7 N00-6005 N-P2-21, Plate, Backup 1

8 N00-4711 N-D1-16-2, Diaphragm, Silicone, Yellow 1

9 N00-6206 N-R1-17, Ring Air Valve 1

10 SEE AIR VALVE ASSEMBLY CHART ON PREVIOUS PAGE 1

11 N00-6421 N-S1-28, Screw, Idle, 3/8-16 x 1-1/4" Fillister Head 1

12 N00-6606 N-S2-16, Spring, Idle Screw 1

13 N00-6453 N-S1-69, Screw, 1/4-28 x 5/16" 3

14 N00-2802 N-AB1-23, Body Assembly 1

15 N00-6104 N-P3-13, Plug, 1/8" (3.2 mm) Pipe Hex Head 1

16 N00-5212 N-G1-21, Gasket, Throttle Body to Mixer 1

17 SEE MIXER CHART ON PREVIOUS PAGE 1

18 Throttle Body Assembly 1

19 N00-5902 N-P1-6, Pin, Throttle Stop 2

20 N00-4308 N-B2-14, Bearing, Oilite, 7/16" (11.11mm) ID 2

21 N00-6710 N-S3-12- Seal, 7/16 (11.11mm) Shaft 2

22 N00-6205 N-R1-11, Ring Seal Retainer 2

23 N00-6903 N-S5-4, Shaft, Throttle, 7/16" (11.11mm) Dia. 1

24 N00-6415 N-S1-21, Screw, Throttle Stop, 10-32 x 3/4" 1

25 N00-6605 N-S2-15, Spring, Throttle Stop Screw 1

26 N00-5619 N-L1-11-1, Lever, Throttle Stop 7/16" (11.11mm) 1

27 N00-6412 N-S1-18, Pin Screw, Throttle Stop 1

28 N00-5619A N-AL1-11-1, LEVER ASS’Y., THROTTLE STOP 1

29 N00-5623 N-L1-12-3, THROTTLE LEVER, SHORT 1

30 N00-6411 N-S1-17, Screw, Clamp, 10-2 x 5/8 1

31 N00-5623A N-AL1-12-3, THROTTLE LEVER, SHORT W/SCREW, N-S1-32 1

32 N00-5009 N-F2-10, Fly, Duplex 1

33 N00-6425 N-S1-31, Screw, 10-32 x 5/16" SEMS 2

34 N00-6413 N-S1-19, Screw, 12-24 x 5/8" SEMS 4

35 N00-6102 N-P3-5, Plug, 1/4" ( 6.35mm) Pipe 1

36 N00-5229 N-G1-44, Gasket, Throttle Body to Flange 1

37 SEE FLANGE ADAPTER CHART ON PREVIOUS PAGE 1

38 N00-5230 N-G1-45, GASKET, 1-1/4" (31.75mm) DUPLEX FLANGE

N00-5231 N-G1-46, GASKET, 1-1/2" (38.1mm) DUPLEX FLANGE

N00-5232 N-G1-47, GASKET, HOLLEY DUPLEX FLANGE

39 SEE THROTTLE BODY ASSEMBLY CHART ON PREVIOUS PAGE 1

N00-7231/N00-7233N00-7237

(131mm)

(88.1mm)(47.6mm)

39Throttle

BodyAssembly

Mixer

Air Valve Assembly

N00-7231 “L” = 3-1/4" (82.6mm)N00-7233 “L” = 3-11/16" (93.7mm)