EEeeek, it's a Rochester 2SE - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Kingjasn · 06-22-2013, 08:55 AM

I am having a great time (supposed to be dripping with sarcasm) dealing with this carb. I got an 82 custom deluxe with a 250 six shooter. has a Rochester varijet 2se carb on it, and I can't seem to find what the problem is. I can start the truck and it idles fine, and even revs up fine while not in gear. When I go to drive it though, I have to ease into it or it chokes down. Once I get up to around 35 or 40 MPH, it starts to hucka-buck like crazy and sometimes dies. If it doesn't die, and I manage to get stopped, it will drive again if I ease into it. the truck has an EFI distributor and the EGR has a delete plate installed. New inline fuel filter installed and I removed the filter in the carburetor as suggested by a post I saw on this site in another section. Is there a direct replacement carb I could look for, or do I just need to put my soul up for bids on ebay to get this problem fixed?

Thanks,
Jason

frog210 · 06-22-2013, 10:45 AM

Mine did something similar to that, i replaced the fuel pump and it fixed it

Kingjasn · 06-22-2013, 09:40 PM

ok, so I have an update in case anyone else is interested.

removed the fuel pump and checked it out, felt a little sloppy, so I changed it with a new one. truck ran a tiny bit better, so a quick call to a buddy, and I got a different varajet same 2se, but off of a motor that was running great until the camshaft let loose and came through the left side of the motor. Well looking at a truck that runs good with the same setup helps a lot! I got back on my truck and found that the vac advance was run with way too big a hose, and it was sucking air right at the carb. fixed that problem and then just had to block off a couple other lines that were not needed due to the egr delete. Truck runs like a raped ape now. well at least as much as a stock 250 can!

06-22-2013, 08:55 AM	#1
Kingjasn Registered User Join Date: Nov 2012 Location: Summerville, SC Posts: 95	EEeeek, it's a Rochester 2SE I am having a great time (supposed to be dripping with sarcasm) dealing with this carb. I got an 82 custom deluxe with a 250 six shooter. has a Rochester varijet 2se carb on it, and I can't seem to find what the problem is. I can start the truck and it idles fine, and even revs up fine while not in gear. When I go to drive it though, I have to ease into it or it chokes down. Once I get up to around 35 or 40 MPH, it starts to hucka-buck like crazy and sometimes dies. If it doesn't die, and I manage to get stopped, it will drive again if I ease into it. the truck has an EFI distributor and the EGR has a delete plate installed. New inline fuel filter installed and I removed the filter in the carburetor as suggested by a post I saw on this site in another section. Is there a direct replacement carb I could look for, or do I just need to put my soul up for bids on ebay to get this problem fixed? Thanks, Jason

06-22-2013, 10:45 AM	#2
frog210 Registered User Join Date: Mar 2012 Location: San Antonio, Tx Posts: 784	Re: EEeeek, it's a Rochester 2SE Mine did something similar to that, i replaced the fuel pump and it fixed it __________________ San Antonio, TEXAS -Frog -I'm a valet and well I've driven BMWs, Mercedes, Porsche,Bentlys, fiats, Hondas, etc and well even do I like a few features, I love my shortbed, it dosent bore me out, just press on the gas and you'll remember why you love it.

06-22-2013, 09:40 PM	#3
Kingjasn Registered User Join Date: Nov 2012 Location: Summerville, SC Posts: 95	Re: EEeeek, it's a Rochester 2SE ok, so I have an update in case anyone else is interested. removed the fuel pump and checked it out, felt a little sloppy, so I changed it with a new one. truck ran a tiny bit better, so a quick call to a buddy, and I got a different varajet same 2se, but off of a motor that was running great until the camshaft let loose and came through the left side of the motor. Well looking at a truck that runs good with the same setup helps a lot! I got back on my truck and found that the vac advance was run with way too big a hose, and it was sucking air right at the carb. fixed that problem and then just had to block off a couple other lines that were not needed due to the egr delete. Truck runs like a raped ape now. well at least as much as a stock 250 can!



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