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140 carb linkage

Posted: Sun Jun 05, 2016 10:08 pm
by junkyardkustoms
Could anyone help me out. I'm working on putting my carbs back on and could use a picture (or a few) of the linkage. I just don't want to get it together and find that something is backwards or on the wrong side. Thank you.

Re: 140 carb linkage

Posted: Mon Jun 06, 2016 5:38 am
by Wagon Master
What year 140 carb. linkage are you seeking pictures of?

Re: 140 carb linkage

Posted: Mon Jun 06, 2016 6:02 am
by bbodie52
You did not say what model year. There were some changes made in 1966 and later 140 hp engine carburetor linkage configurations. The diagrams in the attached 1965 Corvair Assembly Manual - CARBURETOR & FUEL SYSTEM show the original 1965 configuration. Page 12 of the second attachment, DELCO ROCHESTER - Models H, HV Carburetor Service Manual, has some illustrations that show the changes that were made in the secondary carburetor linkages in later years.

:chevy:
1965 Corvair Assembly Manual - CARBURETOR & FUEL SYSTEM.pdf
1965 Corvair Assembly Manual - CARBURETOR & FUEL SYSTEM
(3.92 MiB) Downloaded 582 times
DELCO ROCHESTER - Models H, HV Carburetor Service Manual.pdf
DELCO ROCHESTER - Models H, HV Carburetor Service Manual
(1.79 MiB) Downloaded 317 times
Hopefully the illustrations in the above manuals will help you.

Re: 140 carb linkage

Posted: Mon Jun 06, 2016 9:50 am
by junkyardkustoms
Sorry, it's a '65. But thank you for the links. I'll take a look.

Re: 140 carb linkage

Posted: Mon Jun 06, 2016 7:32 pm
by junkyardkustoms
I looked over the PDF's and I can see the linkage, but not clearly. I know something is wrong on my setup. I'd still like some pictures if anyone could help me out. Thanks.

Re: 140 carb linkage

Posted: Tue Jun 07, 2016 4:33 am
by cad-kid
Do the primary carbs work alright with the setup you have? I see you are missing the connecting link on the RH secondary carb.

Re: 140 carb linkage

Posted: Tue Jun 07, 2016 6:45 am
by bbodie52
I believe in your picture that the throttle actuation rod is inserted in the wrong direction. It should be inserted with the swivel pointed toward the fan. Then the throttle return spring is inserted through the hole in the swivel. The other end of the spring is connected to the tab that is attached to the perimeter sheet metal.
Throttle Linkage (2).jpg
Throttle Rod and Spring Attachment.jpg

Re: 140 carb linkage

Posted: Tue Jun 07, 2016 7:44 am
by junkyardkustoms
I find the rid for that secondary carb, so it's on now. Good point about the swivel though, I'll flip it over. I'm sure the spring will align better now.

Re: 140 carb linkage

Posted: Tue Jun 07, 2016 3:03 pm
by terribleted
junkyardkustoms wrote:I find the rid for that secondary carb, so it's on now. Good point about the swivel though, I'll flip it over. I'm sure the spring will align better now.
And the throttle is less likely to bind from possible contact with the engine shroud as it is going thru off center in the photo.

Re: 140 carb linkage

Posted: Wed Jun 08, 2016 8:27 pm
by junkyardkustoms
Ok, I have a new issue. I got my linkage sorted out (thank you). But tonight after priming the lines that had gone completely dry since sitting, I got it started and found that my right side secondary carb was puking fuel all over. Carb throat completely filed with gasoline and gushing over. I think it was coming out of the vent tube, at least partially. What is that indicative of?

Re: 140 carb linkage

Posted: Thu Jun 09, 2016 2:48 am
by b74eqcm
Stuck float? Before you dig into it, try rapping it a couple of times with a rubber mallet. Sometimes that will work, and once they get wet and unstuck, it'll be fine.

Re: 140 carb linkage

Posted: Thu Jun 09, 2016 7:00 am
by junkyardkustoms
b74eqcm wrote:Stuck float? Before you dig into it, try rapping it a couple of times with a rubber mallet. Sometimes that will work, and once they get wet and unstuck, it'll be fine.
Thanks, I'll give that a try. If it doesn't work, I'll pull off the top and recheck the float. Maybe it's got a crack or something showing it to fill with fuel. When I was putting them together, I did notice that the flats on the secondaries were different. They didn't have a spring on the float pin and the tab on the rear (that adjusts for float drop) was bent up instead of down. So float just swings freely instead of having a specific drop. Is that supposed to be like that?

Re: 140 carb linkage

Posted: Thu Jun 09, 2016 10:51 am
by junkyardkustoms
Oh my gosh, I think I just answered my question. After looking at pictures online, I saw one with the same tang. Turns out the float is upside down in the picture.....so mine must be upside down. Lol. I'll have to flip those over. I just thought it was supposed to be that way since it was on both secondaries.