Revision as of 06:14, 7 August 2011

The Weber 32/36 (DGV) carburetor has a larger bolt pattern than the stock Hitachi on a Datsun A-series engine. You can modify the stock manifold, or use an adapter plate.

Comparo

You can make a DGV-compatible intake:

But most of us use an adapter plate:

Adapters for many models are available for sale, but I made my own adapter for the Nissan A12 engine out of a block of aluminum:

Custom machined adapter (left) and kit-provided cast adapter

Plate Numbers

Redline/JPS part number 10-112
Holley 1-238, 1-239
Redline 99004.100 @ http://redlineweber.com

Fits all with 80mm x 43mm carb base
Chrysler/Mitsubishi Colt, Galant,Lancer, Sigma 
- Citroen CX2200, CX2400 
- Daihatsu with 80mm x 43mm carb base 
- Datsun 1600, 180B, 200B, 240K, 260C, Bluebird, 510, 610 
- Fiat 125 coupe, X-19, 131 
- Ford Courier with mazda engine 
- Holden Gemini 1600 OHC (Isuzu) 
- Isuzu, Bellet, Gemini, Luv 
- Mazda 1200, 1300, 808, 323 rear wheel drive model, 1500, 1800,929,
  Capella 121, mazda 1400 
- Mitsubishi Express L300, Mitsubishi Colt, Galant,Lancer, Sigma 
- Toyota corolla 1100,1200 1300 1966-1984 
3K,4K 5K, 1983-1987 corolla/sprinter/seca 
Corona, Celica, Crown, Celica 1600 TA22 1971-75

Make Your Own Plate

Dimensions: 1 x 2.75 x 5 inches (minimum would be approximately 10 x 6.7 x 11.4 mm)
Using a Nissan gasket as a template on one side, and the Weber gasket on the other, mark the holes.
Drill two bores ~30mm and 27mm to match the intake manifold. You might have a machine shop do this; I had access to a lathe with a large bit chuck into it.
Drill and Countersink holes for stock Nissan pattern using a drill press to get them straight.
Thread holes for Weber pattern
Use a round rasp file to smooth out the transition from the small Nissan bore holes to the larger Weber holes you drew from the template