Duel carb linkage question?????????????????????

Posted By: hemi-itis

Duel carb linkage question????????????????????? - 08/04/12 02:40 PM

I am having issues with my carb linkage.I can't seem to get full throttle and the stock style cables I have tried don't have enough pull for full throttle,and,,they start unwinding/breaking strands of the cable.I have the enderly linkage kit and it does take quite a bit of effort to open the 2 SV1 carbs from an idle.
Pictues and ideas would be great!!

Posted By: Clanton

Re: Duel carb linkage question????????????????????? - 08/04/12 03:04 PM

Do thay open ok with the return spring off?
Is the linkage connected to the carb arm in the correct hole to open it all the way?It is a pain checking all this i know!

Posted By: MRMOPAR622

Re: Duel carb linkage question????????????????????? - 08/04/12 03:22 PM

It looks like you might have your bottom arm on linkage in a bind.I found on mine just a couple of splines different one way or the other makes a Big different. If I were you I would make a bracket and raise my throttle cable up more level with the bottom arm on your bracket and adjust from their.
I don't have a real good picture of this but maybe this will help and hopefully you will be able to see how my throttle cable is more level where it is more of a straight pull.

PS after looking at the picture I posted and looking at yours,if you could turn you bottom arm on linkage down to the bottom like mind that might make it more lever with it and solve your problem with out having to try and raise your throttle cable.

Attached picture 7321296-ns15.jpg.jpg

Posted By: hemi-itis

Re: Duel carb linkage question????????????????????? - 08/05/12 05:07 AM

I made an adjustment on the carb intermediate and took for a test drive,it was better,but,,,,,,,,,,,,the throttle stuck open,I hit the pedal hard twice and it came back half way so I had to turn the key off to kill it

I stained my panties!!!

Will be looking at the Lokar site

Posted By: MR_P_BODY

Re: Duel carb linkage question????????????????????? - 08/05/12 05:34 AM

Quote:

I am having issues with my carb linkage.I can't seem to get full throttle and the stock style cables I have tried don't have enough pull for full throttle,and,,they start unwinding/breaking strands of the cable.I have the enderly linkage kit and it does take quite a bit of effort to open the 2 SV1 carbs from an idle.
Pictues and ideas would be great!!

Your pulling almost 180* to the lower arm... that
will be about the hardest to pull... move the lower
arm upward some (closer to 90*) then you will have
to change the ratio going up to the carbs(faster
ratio)... move the up rod closer to the pivot

Posted By: Clanton

Re: Duel carb linkage question????????????????????? - 08/05/12 02:00 PM

Quote:

I made an adjustment on the carb intermediate and took for a test drive,it was better,but,,,,,,,,,,,,the throttle stuck open,I hit the pedal hard twice and it came back half way so I had to turn the key off to kill it

I stained my panties!!!
Will be looking at the Lokar site

What did you do to the intermediat?I see you have the metering plates off.

Posted By: hemi-itis

Re: Duel carb linkage question????????????????????? - 08/05/12 05:30 PM

Thanks Mr P,I ordered the throttle cable from Lokar.After I install the cable We will re-evaluate and correct.

And Mike,Pat had me remove the plug in port #2 and reduce the outer air bleeds.So it went fron too lean to too fat.Now I can start increasing the outer air bleed size untill it's crisp.When my azzdyno says it's good,then it's time to get on a chassis dyno to verify the a/f and find what timing it wants

Posted By: hemi-itis

Re: Duel carb linkage question????????????????????? - 08/05/12 05:52 PM

Do you guys think I can get enough "pull" with the stock throttle pedal or should I get an adjustable aftermarket pedal?????It also seems that because of the effort required to open off idle that it's breaking strands of the OEM style cable.It got all buched up where the cable comes through the firewall

Posted By: MR_P_BODY

Re: Duel carb linkage question????????????????????? - 08/05/12 06:38 PM

Once you get the angles and ratios correct, the stock
pedal will work... you were pulling at such a sever
angle before it was WAY over loaded... you were pulling
better than twice the effort before until it got to 90*

Posted By: hemi-itis

Re: Duel carb linkage question????????????????????? - 08/05/12 06:48 PM

Quote:

Once you get the angles and ratios correct, the stock
pedal will work... you were pulling at such a sever
angle before it was WAY over loaded... you were pulling
better than twice the effort before until it got to 90*

Mike,I also noticed that the cable coming out of the firewall seems to be at an angle VS coming straight out then bendin upwards.What would keep the cable housing straight before curving??The broken strands at the firewall seems to be what kept it from coming back to idle

Posted By: Clanton

Re: Duel carb linkage question????????????????????? - 08/05/12 06:53 PM

with the lokar setup you can use a bicycle brake cable to replace it if it messedup.[under3$]

Posted By: MR_P_BODY

Re: Duel carb linkage question????????????????????? - 08/05/12 07:01 PM

Quote:

Quote:

Once you get the angles and ratios correct, the stock
pedal will work... you were pulling at such a sever
angle before it was WAY over loaded... you were pulling
better than twice the effort before until it got to 90*

Mike,I also noticed that the cable coming out of the firewall seems to be at an angle VS coming straight out then bendin upwards.What would keep the cable housing straight before curving??The broken strands at the firewall seems to be what kept it from coming back to idle

You need a new inner cable for sure (or the Locar)
but sometimes you have to run a longer housing so
its pre-loaded to keep a nice radius... once you break
1 strand in the inner cable it has/should be replaced

Posted By: hemi-itis

Re: Duel carb linkage question????????????????????? - 08/05/12 07:17 PM

Understood

With the lokar cable,when it lays in the firewall,what will keep it fron angleing at the firewall to keep the cable stright so it is not at an extreame angle and wear the cable prematurely?Is ther a grommet or bushing that would go between the housing & firewall?

Posted By: MR_P_BODY

Re: Duel carb linkage question????????????????????? - 08/05/12 07:25 PM

Quote:

Understood With the lokar cable,when it lays in the firewall,what will keep it fron angleing at the firewall to keep the cable stright so it is not at an extreame angle and wear the cable prematurely?Is ther a grommet or bushing that would go between the housing & firewall?

You'll see that if the housing is longer than what you
have now it will have a better radius.. plus if you
go with the Locar it has a nut type fitting at the
firewall to keep it straight

Posted By: hemi-itis

Re: Duel carb linkage question????????????????????? - 08/05/12 07:33 PM

Quote:

Quote:

Understood With the lokar cable,when it lays in the firewall,what will keep it fron angleing at the firewall to keep the cable stright so it is not at an extreame angle and wear the cable prematurely?Is ther a grommet or bushing that would go between the housing & firewall?

You'll see that if the housing is longer than what you
have now it will have a better radius.. plus if you
go with the Locar it has a nut type fitting at the
firewall to keep it straight

That's the answer I was looking for!

I'll order it at my local speed shop tomorrow and hope to have it for tuesday

Thank you guys for your replies!

Posted By: Clanton

Re: Duel carb linkage question????????????????????? - 08/05/12 09:40 PM

How is the carb linkage work coming?

Posted By: ro23car

Re: Duel carb linkage question????????????????????? - 08/05/12 09:42 PM

why dont you make it so it pushes the carbs open?

Posted By: hemi-itis

Re: Duel carb linkage question????????????????????? - 08/06/12 02:56 AM

Quote:

why dont you make it so it pushes the carbs open?

I'm not sure how to do it that way

All the tunnel rams and roots use this type of linkage and it pulls the throttle open

Posted By: HemiDart68

Re: Duel carb linkage question????????????????????? - 08/06/12 02:29 PM

Dont think the Lokar will solve any of your problems. Had similiar issues with my crossram car. The lokar throttle cables work great on a stock type setup with maybe 1 carb. On something that requires a lot of foot pressure i was less then impressed. When you have to step hard on one the stainless wrap actually compresses/expands and makes for a sloppier peddle. I ended up having a commercial cable company make a throttle cable for me. Look into what Mr. P. said above. it looks like you can change some geometry and make it work alot better. then if you still need some more travel, you can heat up and bend the pedal arm and get a little more throw out of it.

Posted By: MRMOPAR622

Re: Duel carb linkage question????????????????????? - 08/06/12 05:22 PM

Go to your local boat parts supplier and get a Morse boat cable,they have them in just about any length you want.Plus they have a nut on the end to position it(like the Lokar) through the fire-wall.The plus to them is they have very strong cable,the negative is they need to be close to the correct length or a little longer if they need to make a bend,stay away from sharp bends and you can't beat them.

Posted By: MR_P_BODY

Re: Duel carb linkage question????????????????????? - 08/06/12 11:55 PM

Quote:

Go to your local boat parts supplier and get a Morse boat cable,they have them in just about any length you want.Plus they have a nut on the end to position it(like the Lokar) through the fire-wall.The plus to them is they have very strong cable,the negative is they need to be close to the correct length or a little longer if they need to make a bend,stay away from sharp bends and you can't beat them.

The bad part about the Morse cables is that they are
designed as a push/pull cable and are thicker in
diameter and are HARD to get any fairly tight radius...
they are great when you can have a BIG radius

Posted By: MRMOPAR622

Re: Duel carb linkage question????????????????????? - 08/07/12 12:44 AM

Mr_P looking at the op carb. linkage,don't you think it would help most to turn the bottom arm on the linkage down like mine(its hard to see from picture I posted above)to straighten out the push-pull of the cable?

Posted By: MR_P_BODY

Re: Duel carb linkage question????????????????????? - 08/07/12 12:55 AM

Quote:

Mr_P looking at the op carb. linkage,don't you think it would help most to turn the bottom arm on the linkage down like mine(its hard to see from picture I posted above)to straighten out the push-pull of the cable?

I'd have to go back and look BUT you want it to start
just before 90* to the pulling force to give you the
least effort to the most distance of travel... the
ratios will dictate the amount of load against the
pulling force and then the return springs.. since
we HAVE to have 2 return springs AND the carbs already
have return springs you dont need much for the 2 returns

Posted By: hemi-itis

Re: Duel carb linkage question????????????????????? - 08/07/12 03:34 AM

Quote:

How is the carb linkage work coming?

Mike,the lokar will be in tomorrow.So depending how my phone rings tomorrow will determine how much time I can spend at the garage.

Posted By: MR_P_BODY

Re: Duel carb linkage question????????????????????? - 08/07/12 03:46 AM

Quote:

Quote:

How is the carb linkage work coming?

Mike,the lokar will be in tomorrow.So depending how my phone rings tomorrow will determine how much time I can spend at the garage.

LOL.... you do know those phones have a OFF button...LOL

Posted By: hemi-itis

Re: Duel carb linkage question????????????????????? - 08/07/12 04:36 AM

Quote:

Quote:

Quote:

How is the carb linkage work coming?

Mike,the lokar will be in tomorrow.So depending how my phone rings tomorrow will determine how much time I can spend at the garage.

LOL.... you do know those phones have a OFF button...LOL

My hours are 8 days a week , 30 hours a day!!
I', in the towing biz

Posted By: Clanton

Re: Duel carb linkage question????????????????????? - 08/07/12 01:04 PM

Quote:

Quote:

Quote:

Quote:

How is the carb linkage work coming?

Mike,the lokar will be in tomorrow.So depending how my phone rings tomorrow will determine how much time I can spend at the garage.

LOL.... you do know those phones have a OFF button...LOL

My hours are 8 days a week , 30 hours a day!!
I', in the towing biz

I knew that!

Posted By: hemi-itis

Re: Duel carb linkage question????????????????????? - 08/08/12 03:15 AM

The Lokar cable came in today.Real nice package that seems to come with all the needed hardware.The "L" bracket could be a little thicker

Posted By: hemi-itis

Re: Duel carb linkage question????????????????????? - 08/08/12 04:13 AM

Cable with ends

Posted By: Clanton

Re: Duel carb linkage question????????????????????? - 08/08/12 01:45 PM

Here is how mine looks.

Attached picture 7327072-104_0006.JPG

Posted By: Clanton

Re: Duel carb linkage question????????????????????? - 08/08/12 01:46 PM

Posted By: Clanton

Re: Duel carb linkage question????????????????????? - 08/08/12 01:48 PM

Posted By: hemi-itis

Re: Duel carb linkage question????????????????????? - 08/11/12 02:44 PM

Quote:

3

Mike,I noticed the hole you use to attach to the carb is the lower one.I'm in the upper one,will that give a little more pull??I'm still short

Posted By: actionange

Re: Duel carb linkage question????????????????????? - 08/13/12 08:59 PM

A few pics of a linkage that works. Perhaps they will assist you if you're still having issues with yours.

Attached picture 7333670-QUICKFUELCARBSBEAVERSPRINGS2012033.JPG

Attached picture 7333670-QUICKFUELCARBSBEAVERSPRINGS2012033.JPG

Posted By: actionange

Re: Duel carb linkage question????????????????????? - 08/13/12 09:01 PM

Another

Attached picture 7333672-QUICKFUELCARBSBEAVERSPRINGS2012035.JPG

Posted By: DaDart

Re: Duel carb linkage question????????????????????? - 08/13/12 09:24 PM

Al, just a note of a problem we had with the braided cable. Since you have to use alot of pedal pressure it would cause the outer cable to pinch the inner one so the carbs didn�t
open all the way. We had to go to the black cable.

Posted By: Clanton

Re: Duel carb linkage question????????????????????? - 08/13/12 09:53 PM

Quote:

Quote:

3

Mike,I noticed the hole you use to attach to the carb is the lower one.I'm in the upper one,will that give a little more pull??I'm still short

That hole gives the correct ratio to open the blades all the way!The length from the pivot is kept the same on all.