The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1960 - 1966 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 10-30-2010, 08:27 PM   #1
Sixxer
Registered User
 
Sixxer's Avatar
 
Join Date: Oct 2009
Location: Overland Park, KS
Posts: 70
Rochester Carb Issue

I have a Rochester 1BBL on my 64 inline six and the when I pull the choke lever the the shaft moves but the choke butterfly doesn't it just freely hangs. I rebuilt the carb several weeks ago and it was doing great but today I was having starting issues and believe this is the problem. I've search the interwebs high and low and can't find the shaft assembly, is my carb done and I need a new one or is this replaceable?
Sixxer is offline   Reply With Quote
Old 10-30-2010, 08:41 PM   #2
Rich 5150 69
Registered User
 
Rich 5150 69's Avatar
 
Join Date: Nov 2009
Location: Galt, Calif
Posts: 2,437
Re: Rochester Carb Issue

Sounds as if you lost the plate screws at one time, see this link
http://www.sportcompactonly.com/manu...s/199R9978.pdf
fiqure # 10 just for visual purpose.
__________________
`64 C10 vortec 350/350/373 posi
`69 RS/SS 350/350/308
`37 Ford 406/350/324 traclock
`68 Dart 370/904/323 suregrip
Rich 5150 69 is offline   Reply With Quote
Old 10-30-2010, 08:44 PM   #3
Sixxer
Registered User
 
Sixxer's Avatar
 
Join Date: Oct 2009
Location: Overland Park, KS
Posts: 70
Re: Rochester Carb Issue

Quote:
Originally Posted by Rich 5150 69 View Post
Sounds as if you lost the plate screws at one time, see this link
http://www.sportcompactonly.com/manu...s/199R9978.pdf
fiqure # 10 just for visual purpose.
Can't seem to get that to load on my computer, any other link? And the butterfly is firmly attached to the shaft but moving the choke lever on the side of the carb doesnt turn the butterly closed or open.
Sixxer is offline   Reply With Quote
Old 10-30-2010, 09:06 PM   #4
Rich 5150 69
Registered User
 
Rich 5150 69's Avatar
 
Join Date: Nov 2009
Location: Galt, Calif
Posts: 2,437
Re: Rochester Carb Issue

Then the cable must be sliding thru the lever link or the lever itself is ( I believe is been stamped on the shaft ) and is loosened up and rotating on the shaft, If thats the case you`ll have to remove the plates pull the shaft out and restamp it if possible, or what I have done in the past is if the shaft and lever not to rounded off is to drill out the center of the shaft and tap it and use a machine screw to lock the lever down with a washer and lock ring. the shaft being brass will drill and tap very easily....
__________________
`64 C10 vortec 350/350/373 posi
`69 RS/SS 350/350/308
`37 Ford 406/350/324 traclock
`68 Dart 370/904/323 suregrip

Last edited by Rich 5150 69; 10-30-2010 at 09:08 PM.
Rich 5150 69 is offline   Reply With Quote
Old 10-30-2010, 09:11 PM   #5
Sixxer
Registered User
 
Sixxer's Avatar
 
Join Date: Oct 2009
Location: Overland Park, KS
Posts: 70
Re: Rochester Carb Issue

Quote:
Originally Posted by Rich 5150 69 View Post
Then the cable must be sliding thru the lever link or the lever itself is ( I believe is been stamped on the shaft ) and is loosened up and rotating on the shaft, If thats the case you`ll have to remove the plates pull the shaft out and restamp it if possible, or what I have done in the past is if the shaft and lever not to rounded off is to drill out the center of the shaft and tap it and use a machine screw to lock the lever down with a washer and lock ring. the shaft being brass will drill and tap very easily....
That sir, is a damn good idea! I will try that tomorrow morning!
Sixxer is offline   Reply With Quote
Old 10-31-2010, 04:54 AM   #6
raycow
Registered User
 
Join Date: Mar 2003
Location: San Francisco, CA USA
Posts: 2,454
Re: Rochester Carb Issue

IIRC, the lever that the inner cable attaches to is not part of the shaft. There is a coil spring wound around the shaft that connects the two parts together. So if the spring is missing, broken, or unhooked, pulling the cable won't rotate the shaft.

Ray
__________________
Live more responsibly. Eat lower on the food chain. Eat vegetarians.

Last edited by raycow; 10-31-2010 at 04:57 AM.
raycow is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 05:51 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com