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Username Post: Rochester 2-jet        (Topic#365880)
Eddy_Finn 
Newbie
Posts: 10
Eddy_Finn
Age: 57
Loc: Finland
Reg: 07-19-21
07-21-21 07:59 PM - Post#2823659    

Hi, i'm bit confused how 2-jet works on 283.
Everything is original on my -62 Biscayne, so get started car when it has been sitting few days, takes long time to crank it. After it starts, just show key and you're done. Should this have a choke in it?

Another thing, cannot push gas pedal more than an inch or max two, can drive along in traffic nicely, but harder acceleration makes choking feeling.
Kinda feel that carb gets too much of gas or something.

Should i get repair kit or do you recommend something another carb replacing 2-jet?

Tried to find blowout pics for 2-jet, no luck...

One thing in for sure, that hard gas line needs to be cut and put visible filter to it, now missing.





 


impala62 
Poster
Posts: 87

Age: 52
Loc: The Netherlands
Reg: 04-02-07
07-21-21 09:48 PM - Post#2823664    
    In response to Eddy_Finn

Hello, if you look in https://www.chevytalk.org/fusionbb/showtopic.php?t... yoou can see a dropbox download link.
Select the 61 manual and chapter 10 explanes the 2CG carburator including drawings.

Also, modern fuel evaporates much faster so after a few days your carburator is almost empty.


1962 327 4 door hardtop
1967 opel kadett 1.2ltr


Edited by impala62 on 07-21-21 09:51 PM. Reason for edit: No reason given.

 
Eddy_Finn 
Newbie
Posts: 10
Eddy_Finn
Age: 57
Loc: Finland
Reg: 07-19-21
07-21-21 10:26 PM - Post#2823665    
    In response to impala62

Thank you, printed pages 10-17 and reading carefully.



 
carbking 
Senior Member
Posts: 1536
carbking
Loc: Missouri
Reg: 06-14-03
07-22-21 04:11 AM - Post#2823669    
    In response to Eddy_Finn

The Rochester 2G is a GREAT carburetor, don't replace it!

Continue reading; make certain carburetor is correctly adjusted, especially choke.

Test why the gas petal will not move further. Disconnect linkage at the carburetor, and have a friend work the gas petal while you watch the linkage.

Jon.

Good carburetion is fuelish hot air!

The most expensive carburetor you will ever buy.....is the incorrect one you attempt to modify!

If you truly believe "one size fits all", trying walking a mile in your spouse's shoes!


 
japete92 
"7th Year" Silver Supporting Member
Posts: 1737
japete92
Loc: No. Virginia
Reg: 01-18-13
07-22-21 04:59 AM - Post#2823672    
    In response to Eddy_Finn

All good replies so far.

One possibility is the gas in the bowl could be evaporating over time (the ethanol exasperates this) and the pump needs 'cranks' to prime it. My '63 w/4 v does that if it sits for 4-5 days.

In lieu of '..a long time to crank it...' , try a few short 'burst' until it starts. That's a little easier on the system.

Me being a dumb ax at times, it took me too long to figure out why I had a similar 'hard pedal'. It turned out there was a bolt (I obviously dropped) stuck behind the pedal blocking some of the travel.

Just a few simple possibilities to part of your problem.

Pete



Edited by japete92 on 07-22-21 05:03 AM. Reason for edit: No reason given.

 
Mel Foye 
*VIP* Original Founding Member Group
Posts: 5238
Mel Foye
Reg: 09-29-00
07-22-21 09:28 AM - Post#2823686    
    In response to Eddy_Finn

Say you are trying to pass someone but you don't have enough power and do a head on. Also fun is quick stop in front and the gas sticks. Gas says go and with both feet on the brake trying to stop. Do first.
Keep your original gas line, buy a new line, use old as a model, cut and add filter.



Edited by Mel Foye on 07-24-21 11:59 AM. Reason for edit: No reason given.

 
impala62 
Poster
Posts: 87

Age: 52
Loc: The Netherlands
Reg: 04-02-07
07-22-21 09:36 PM - Post#2823731    
    In response to japete92

Just start with the basics.

Check carburator, old fuel can make a mess.
I normally use WD40 to clean out the passages, easy to blow thru the canals and also easy to clean up.

Also check all the basics, ignition timing, gaspedal linkage and also kickdown linkage for binding and full travel.

Most off the times the carburator gets the blame but the problem is one off the other parts.

Ronald

1962 327 4 door hardtop
1967 opel kadett 1.2ltr


 
Tony 
Founder & Grand PoohBah
Posts: 18683
Tony
Age: 64
Loc: Orange County CA.
Reg: 03-15-99
07-23-21 11:33 AM - Post#2823768    
    In response to impala62

Removed a few posts that were off topic.


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Eddy_Finn 
Newbie
Posts: 10
Eddy_Finn
Age: 57
Loc: Finland
Reg: 07-19-21
07-29-21 12:26 AM - Post#2824082    
    In response to Tony

Acceleration pump not working at all, rebuilt kit ordered. Then question is for myself, do it right away or drive like that to the end of season and rebuilt it when weather shows cruising times are over for this summer...

Watched on YouTube that it is not that bad task to rebuilt that 2-jet, just keep on mind which part goes where. :laugh :



 
Eddy_Finn 
Newbie
Posts: 10
Eddy_Finn
Age: 57
Loc: Finland
Reg: 07-19-21
07-29-21 12:28 AM - Post#2824083    
    In response to Tony

Acceleration pump not working at all, rebuilt kit ordered. Then question is for myself, do it right away or drive like that to the end of season and rebuilt it when weather shows cruising times are over for this summer...

Watched on YouTube that it is not that bad task to rebuilt that 2-jet, just keep on mind which part goes where. :laugh :

PS. thank you for those helpful tips and comments



 
impala62 
Poster
Posts: 87

Age: 52
Loc: The Netherlands
Reg: 04-02-07
07-29-21 03:02 AM - Post#2824085    
    In response to Eddy_Finn

Just rebuild it. Just a couple of hours work if you`re not in a hurry.
Take jour time and use a clean desk to work on.
Makes the rest of the season much more fun.

Ronald

1962 327 4 door hardtop
1967 opel kadett 1.2ltr


 
ayelander 
"3rd Year" Platinum Supporting Member
Posts: 132
ayelander
Loc: Oak Island NC
Reg: 12-07-18
07-29-21 04:19 AM - Post#2824094    
    In response to impala62

Add pictures before and during.

Ayelander - Oak Island NC
1951 Chevy 3100, 261 cu in, Dual Webers, Fenton Exh
1963 Impala SS, 500 HP, EFI 383 Stroker,Tremec 6 Speed
2013 Camaro 2SS, Convertible
2016 Chevy High Country, Diesel, Dually


 
Eddy_Finn 
Newbie
Posts: 10
Eddy_Finn
Age: 57
Loc: Finland
Reg: 07-19-21
07-29-21 09:53 PM - Post#2824140    
    In response to ayelander

  • ayelander Said:
Add pictures before and during.



I can do that!
Opened the rebuilt kit and looking at it kinda disappointed expression on my face, that Hygrade Jiffy Rebuild Kit did not include a floater, need to order separate.
Hope that the current floater is not complete waste... Being floating quite some time now. :laugh :



 
impala62 
Poster
Posts: 87

Age: 52
Loc: The Netherlands
Reg: 04-02-07
07-30-21 07:24 AM - Post#2824159    
    In response to Eddy_Finn

I have never seen a float inside a rebuild kit.
If yours was failing fuel would flow out of the carburator.

My guess is that the float will be OK.

Ronald

1962 327 4 door hardtop
1967 opel kadett 1.2ltr


 
turbo38s10 
"10th Year" Gold Supporting Member
Posts: 1921
turbo38s10
Loc: Agawam,MA
Reg: 09-17-09
07-31-21 04:25 AM - Post#2824195    
    In response to impala62

Carburator shop can probably help you with a float if you need one. Dito on them not being in the standard kits, never seen a kit with one. Maybe in the old days they had a major kit with and a minor kit without but I don't remember.

https://www.thecarburetorshop.com/



Edited by turbo38s10 on 07-31-21 04:27 AM. Reason for edit: No reason given.

 
carbking 
Senior Member
Posts: 1536
carbking
Loc: Missouri
Reg: 06-14-03
07-31-21 04:35 AM - Post#2824196    
    In response to turbo38s10

BEFORE BUYING, TEST YOUR FLOAT!

If defective, fix it; or start scouring swap meets, salvage yards, etc., for "parts carburetors".

A sixty year old original is far superior to the new imports.

We are sold out of the originals, and I wouldn't give away the new ones if paid to do so!

Jon.

Good carburetion is fuelish hot air!

The most expensive carburetor you will ever buy.....is the incorrect one you attempt to modify!

If you truly believe "one size fits all", trying walking a mile in your spouse's shoes!


 


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