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Carb question
#1321653 Tue Aug 13 2019 01:25 AM
Joined: Apr 2019
Posts: 126
J
JD1 Offline OP
Shop Shark
I identified my engine this week with the help of the forum. Thanks guys. I have a 1957 235 with a 1955 head.
I have a single Rochester carb with the stock gas filter and oil bath filter. I have a choke and throttle cable.

I would like to get a new carb and then rebuild my current carb to have as a spare. Can anyone recommend a place to purchase a quality carb that I can use ethenol gas with?
Or would a different carb setup be a better running (less maintenance) carb than the Rochester?

Mike's Carbs has a replacement for the Rochester than looks pretty good, but I don't think I'll be able to use the original gas filter or oil bath cleaner with that carb.

Thanks,
JD


1951 Chevy 3100 1/2 ton (1957 235, 4 speed, 411 rear)
Re: Carb question
JD1 #1321657 Tue Aug 13 2019 01:50 AM
Joined: Jan 2017
Posts: 349
4
Shop Shark
JD--I would get a 32/36 from Langdon's Stovebolt and find non ethanol fuel. I have 2 1954 rebuilt 235 engines, one in a 49 and one in a 51 5 window..the one with the 32/36 purrs like a kitten..all rebuilt..Bill

Re: Carb question
JD1 #1321724 Tue Aug 13 2019 03:55 PM
Joined: Apr 2019
Posts: 126
J
JD1 Offline OP
Shop Shark
Are you running the stock intake, air cleaner, and gas filter?

The only ethanol fuel around me goes for $10 a gallon.


1951 Chevy 3100 1/2 ton (1957 235, 4 speed, 411 rear)
Re: Carb question
JD1 #1321776 Wed Aug 14 2019 01:42 AM
Joined: Feb 2000
Posts: 4,066
J
Shop Shark
What percent of ethanol are looking to run? Here in the midwest most all the fuel is 10-15% ethanol. I have no problem running 1948 W-1 Carters on this type of fuel.

Re: Carb question
JD1 #1321784 Wed Aug 14 2019 02:21 AM
Joined: Apr 2019
Posts: 126
J
JD1 Offline OP
Shop Shark
It’s usually 10%.


1951 Chevy 3100 1/2 ton (1957 235, 4 speed, 411 rear)
Re: Carb question
JD1 #1321868 Wed Aug 14 2019 07:20 PM
Joined: Apr 2019
Posts: 126
J
JD1 Offline OP
Shop Shark
Are there any opinions on the rebuilt carter yfs from classic Chevy trucks?


1951 Chevy 3100 1/2 ton (1957 235, 4 speed, 411 rear)
Re: Carb question
JD1 #1321871 Wed Aug 14 2019 07:37 PM
Joined: Feb 2001
Posts: 6,699
W
Master Gabster
Langdon's is a good choice. Here.url=https://www.shop.cliffordperformance.net/68-Chevy-235-261-Combination-68C235.htm]Another choice but expensive.[/url].


Ron, The Computer Greek
I love therefore I am.

1960 MGA Roadster Sold 7/18/2017
1954 3100 Chevy truck in the Gallery
2017 Buick Encore
Pix on Photobucket
Re: Carb question
JD1 #1321970 Thu Aug 15 2019 04:17 PM
Joined: Mar 2014
Posts: 1,201
J
Shop Shark
Originally Posted by JD1
Are there any opinions on the rebuilt carter yfs from classic Chevy trucks?


We can't give you any encouragement on these because we don't have any idea who rebuilt them, and much worse than that nobody other than the person who worked on them has any earthly idea what parts might be inside them. No idea whatsoever. Unfortunately anybody doing this sort of work can swap parts from any YF into any other YF. The most common problem I've seen is that the float bowl (which carries the identifying marking of the YF model) can be swapped with throttle bodies and air horns of any model YF handy. This creates a mongrel carburetor which will never ever work as it was designed. For this reason alone, I would not buy one of them. Trust me, your money can be spent better elsewhere. Would you like examples? Here are two:

https://tinyurl.com/y5678u2v

https://tinyurl.com/y3fembwo

On both of these, the seller thinks this is a 3211s. It is no more a 3211s than it is a spaceship. No 3211s was ever made with a manual choke. These are guaranteed to be "frankencarburetors" assembled from (a) one 3211s float bowl and (b) throttle bodies and air horns from some other manual choke Carter body. They won't work.

Or this one:

https://tinyurl.com/y2hnwvhv

It claims to be NOS and it may be, but the images are out of focus and it appears to be rusted to the point it will never be ok again.

Over the past couple of years I've gone to great lengths to find as much of the remaining Carter YF information as possible so that any carburetor I have or that I sell can be checked and guaranteed to be what it should be...and it takes a while and some careful study to do this. It most definitely is not the sort of work a wholesale rebuilding operation is ever going to do. They can't afford to do work like that because time is money and their employees are paid based on the number of carburetors they "rebuild" during their shift.

Given your setup I would say you'd do best with a Carter 3211s carburetor although other Carter types might work fine. Are you interested in manual choke or auto choke?


Jon

1952 1/2 ton with 1959 235
T5 with 3.07 rear end
Re: Carb question
JD1 #1321973 Thu Aug 15 2019 04:46 PM
Joined: Apr 2019
Posts: 126
J
JD1 Offline OP
Shop Shark
I have the stock manual choke and throttle cable.


1951 Chevy 3100 1/2 ton (1957 235, 4 speed, 411 rear)
Re: Carb question
JD1 #1321976 Thu Aug 15 2019 05:22 PM
Joined: Mar 2014
Posts: 1,201
J
Shop Shark
Thanks...I understand that's what you have now but I was curious as to whether you wanted to keep the manual choke. Going with an auto choke gives you other and more interesting alternatives. The Carter carburetors with manual chokes are at times not easy to find in good and unmolested condition. The 2100s would be the last Carter made for the 235 with a manual choke. I've been looking for one of the 2100s models for a friend, but haven't found any worth buying.


Jon

1952 1/2 ton with 1959 235
T5 with 3.07 rear end
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