Any idea what carb this is?
- Thread starter Sir Patrick
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Sir Patrick
Active Member
One more pic-
Can probably find one here.
Mopar 1968 383 440 Big Block Throttle Return Spring
Your spring you have on the throttle looks to be in the right location but looks a little stretched.
You are also missing the kick down spring. This will really mess with your shifting and will not allow the transmission to shift properly. Do not run without.
Note the kick down spring is also used as a retainer for the linkage at the rear.
In the parts manual the they do have springs listed with different colors and coil counts, difficult to decipher. There are 8 choices for C Body.
My throttle one is blue/green with orange stripe (49 coils) and kick down is red with a small black stripe / dab of paint (75 coils).
Mopar 1968 383 440 Big Block Throttle Return Spring
Your spring you have on the throttle looks to be in the right location but looks a little stretched.
You are also missing the kick down spring. This will really mess with your shifting and will not allow the transmission to shift properly. Do not run without.
Note the kick down spring is also used as a retainer for the linkage at the rear.
In the parts manual the they do have springs listed with different colors and coil counts, difficult to decipher. There are 8 choices for C Body.
My throttle one is blue/green with orange stripe (49 coils) and kick down is red with a small black stripe / dab of paint (75 coils).
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@413, I am not convinced my return spring is backwards. The bends at the end don’t match your suggestion that it is backwards . It would be like putting a square peg in a round hole.
one end is bent with a nice radius to fit the throttle linkage where the bend on the other end is bent more square to engage the flat bracket.
one end is bent with a nice radius to fit the throttle linkage where the bend on the other end is bent more square to engage the flat bracket.
Sir Patrick
Active Member
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@HWYCRZR That end was rebent, it’s not factory. Usually because the end breaks off.
The long end with no coils goes to the carb, the other end with coils close to the end goes to the bracket. Both bends should be similar.
Look at the new spring in your link, see how long the one straight part is? See how the bends look?
The long end with no coils goes to the carb, the other end with coils close to the end goes to the bracket. Both bends should be similar.
Look at the new spring in your link, see how long the one straight part is? See how the bends look?
Did he have both springs for you?
I probably need to give him a call as well.
I now understand why I may have had two springs. If the one end broke off and was re-bent maybe Dad or Mom thought it was too strong. When lowered in the other position it may have been less force and would not return, so another light spring was added.
I may have one Marty.
Sir Patrick
Active Member
Yes, he had both. Said there might be 3...but had to check. He even hooked me up with the cable retainer to the carburetor I am missing.
Let me know what you find.
Thanks
Nuttin this time, Marty. Not to say I don't have one or two but I can't locate any right now. Sorry to get your hopes up.
Thanks for checking. It works fine now. If Mopar’s in the Park is still on I may grab one there.
Sir Patrick
Active Member
Took the advice- gave it some TLC. before and after-
Sir Patrick
Active Member
And found some numbers under the crud
Those are casting numbers and don’t mean anything to getting a rebuild kit.
The hose with arrow, is that to the PCV? If so you need to redo your vacuum lines. You have that to the Power brake booster also, so with the PCV in the same hose you have a built in vacuum leak in the power brake vacuum.
Not a good idea. They should be separate hoses. Look at @HWYCRZR photo below
the PB vacuum hose comes off the back of the intake manifold. If no hose connector there then there will be a plug screwed into the hole for the hose fitting.
The hose with arrow, is that to the PCV? If so you need to redo your vacuum lines. You have that to the Power brake booster also, so with the PCV in the same hose you have a built in vacuum leak in the power brake vacuum.
Not a good idea. They should be separate hoses. Look at @HWYCRZR photo below
the PB vacuum hose comes off the back of the intake manifold. If no hose connector there then there will be a plug screwed into the hole for the hose fitting.
Sir Patrick
Active Member
Looks like the vaccuum from the intake that goes to the booster has a small vaccuum that goes through the firewall for something....video-
That little line into the interior is for the vacuum controls on the heater.
Good videos. Where that hose comes out of the intake there should be a 5/16” filling for the brake booster hose. Then coming out of one side of that should be a small fitting for that small hose that goes into the firewall to run the heater controls.
Sir Patrick
Active Member
Think that's what the small hose off the booster, that's blocked off, is probly for?
Sir Patrick
Active Member
Oh, by the way-
I sure do appreciate your guys time and help here....very cool guys.
I sure do appreciate your guys time and help here....very cool guys.
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