Feelings on the Weber 32/36 carb

[Vikingone]

I have a Weber 32/36 carb on my AMC 258 i6 / 4.2l . I see a lot about the mc2100. I’d really like to put the money towards other things. What’s everyone’s feelings on the Weber?


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[caveman]

"My opinion. Annd. May not. Be factual" I think the Weber is a good carburetor. Better than the Carter that came on Jeeps. If you're going to do a lot of offroading, I think the motorcraft is a better carb. I've had all three and maybe if I understood the Weber better and knew how to adjust it for my needs I would have liked it better. The Weber worked great for highway and moderate offroading but failed me in the rough stuff.

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[Vikingone]

This Jeep will barely be off road. If at all.


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[Belizean]

"My opinion. Annd. May not. Be factual" I think the Weber is a good carburetor. Better than the Carter that came on Jeeps. If you're going to do a lot of offroading, I think the motorcraft is a better carb. I've had all three and maybe if I understood the Weber better and knew how to adjust it for my needs I would have liked it better. The Weber worked great for highway and moderate offroading but failed me in the rough stuff.

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X2 with caveman. I'm building a AMC 258 i6 / 4.2l for installation in mine. Loved my Webber over original but going with EFI this time

 

[caveman]

X2 with caveman. I'm building a AMC 258 i6 / 4.2l for installation in mine. Loved my Webber over original but going with EFI this time

If I was more clever with electronics I think that I may have gone that route too.

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[Scout1067]

I have the Weber 32/36 on my 81 CJ7 and while it was tricky as hell to get the idle and mixture set properly since I have done that and replaced the electric with a manual choke it purrs along pretty good and I am getting decent mileage as well. Mine mostly stays on the road and I only do light offroading to get to my hunting stands.

 

[Vikingone]

How hard was the electric choke to manual choke to perform?


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[Scout1067]

How hard was the electric choke to manual choke to perform?

I got a kit from an outfit in the UK called Eurocarb. It took me about 30 minutes to do the conversion. The hardest part was deciding where i wanted to drill the hole to route the cable to the dash.

https://www.dellorto.co.uk/shop/web...-conversion-kit-weber-dgav-dgas-carburettors/

 

[berserk71]

On my 1977 CJ5 (AMC 258 i6 / 4.2l , 32x11.5 tires, 3.54 rear, T-150 Transmission and no power steering I was getting about 22 mpg with the 32/36. With the MC2100 I was getting about 15 mpg but with a substantial power increase. With the MC2100 you will need to fabricate an adapter to the air cleaner if you choose to use the factory air cleaner, which is superior IMO. It's important to note that the Weber really wasn't designed as an off road carb nor was it designed to be used on larger engines like the AMC 258 i6 / 4.2l but it will work. If you are planning any performance mods, in the future, it may not work for example, headers, High flow muffler etc. Also, in order to get the 32/36 to work right I had to use an electric fuel pump, pressure regulator and an M/E Wagner adjustable PCV which, IMO, should be standard on any DD modified "carbureted" engine. Otherwise, the float bowl would overfill and spill down the barrel wasting fuel because they are a "very" fuel pressure sensitive carb. Just FYI, I rebuilt the AMC 258 i6 / 4.2l with the Clifford build and reinstalled the 32/36 just to see what would happen. With the fuel mods I mentioned above I was able to get it to work very well up to about 60mph then it would max out the CFM, of the carb, and start to run to rich. 60 was about max it would go. So I believe the 32/36 can work on a modified engine. I'm currently running a Quadrajet and it has become my favorite over the OEM YF, the 32/36, MC2100 and Carter BBD I've had on it before. The Quadrajet is well known to be one of the best off road carbs out there and i'm getting about 22mpg, of course I have modified my jeep a lot since then, so not exactly apples to apples comparison. To be fair most of these mods should have given me less mileage. It also seems to start easier and is less cold blooded. Most say the Quadrajet 750 is to big for the AMC 258 i6 / 4.2l but it is a "variable" cfm carb and was installed on much smaller engines from the factory back in the day. The "primaries" what you will be running on 99.99% of the time, are virtually the same size as they are on the MC2100 but you also get the added benefit of a more efficient fuel metering system.