ok i found, and im not exagerating, 1/2 of dirt and sand under the floats in the 4cg carb yesterday when i was attempting to rebuild it... now.. im cleaning this thing good but have a question or two... 1) the accelerator pump that came with the kit is tight in the cylender...is it suppose to be like that??? and 2)...i forgot where a large mechanical spring goes??? any ideas its about 2 inces long and has hooks on each end... i guess i should of been paying more attention... thanks anyone!!

 

The accel plunger should be a bit tight since it needs to create a seal to be able to pump gas. When the whole thing is wet with gas, ti should move easier. You could wipe a very thin smear of grease along the bore if you feel it is necessary.
Is it a leather seal or a rubber seal?

A large spring with a hook on each end?
Extension or compression?
How large (length and diameter)?
By the sound of it, and if it's an extension spring, it's probably your throttle return spring.

- Eric

 

i have a rubber seal which i know isnt as good as the leather beacuse ethenol eats the rubber, right? The spring is a extention spring. I looked at manuals online but and lost as to where it hooks both ends to, so if these letters where the spring it would be (%%%%%%%%) <that long so about 1 3/4 inches long a half inch in diameter. thank you!!!!!!

 

A modern rubber seal will be fine, as it will be a compound that's resistant to alcohols.
An older seal may or may not be, as it wasn't in the design specifications.

- Eric

 

ok...the acc. pump i took out had significant play so i think that along with the tons of sand and dirt in the car was the culpret for the car running like crap under a load...So is that spring for the throttle return??? if so where do i hook the ends up to?? Thanks

 

I've never taken apart a 4GC, so I can't be specific about that spring - sorry.

As for all the crud - heck yeah, that'll make it not want to get up and go!

- Eric

 

yea thats what im thinking to.... I just need to reassemble the carb tommorow... adjust it then set her back on the block... and hopfully remember where that spring goes....

 

Just find the spring on an exploded view. I'm surprised tere isn't one with the rebuild kit.
There always used to be.

- Eric

 

No large spring with hooks on the ends goes inside a 4GC that I know of. I am no 4GC expert but I spent a lot of time studying them to rebuild mine. Are you sure it is not just your throttle return spring for the external linkage?

 

Go to newagemetal.com and look up the year and model of the carb. See if you can find the spring in the exploded view to match up with yours. gl

 

well i jsut used a summit racing carb (750cfm dub. pump.) that i had and got an adapter for the square bore then fabed the throttle linkage up good so the tranny cable works right... and now its running amazing!! shifts good as to be expected with the slim jim and is looking great!!!! I kept the old 4gc and will have it fixed up sometime when i want to completly restore the car... but for now i just wanted it to be reliable and run good..

 

Hey Fasteddi - can you take a few pics of your fab work on the trans linkage?

 

That's the way - Git 'er done!

Better to be driving it than sitting on the porch staring at it.



- Eric