|
70 340 6 pack kickdown rod too short
#2571350
10/29/18 11:48 PM
10/29/18 11:48 PM
|
Joined: Apr 2012
Posts: 364
US
f2502011
OP
enthusiast
|
OP
enthusiast
Joined: Apr 2012
Posts: 364
US
|
My kickdown rod is too short and seems to be making the car not kickdown and idle high. Where can I get a new correct one piece one for a 1970 that will work better?
1970 EK2 T/A 727
|
|
|
Re: 70 340 6 pack kickdown rod too short
[Re: f2502011]
#2571528
10/30/18 12:02 PM
10/30/18 12:02 PM
|
Joined: Apr 2012
Posts: 364
US
f2502011
OP
enthusiast
|
OP
enthusiast
Joined: Apr 2012
Posts: 364
US
|
It’s the factory 1 piece setup for 1970 340 six pack.
Last edited by f2502011; 10/30/18 12:12 PM.
1970 EK2 T/A 727
|
|
|
Re: 70 340 6 pack kickdown rod too short
[Re: f2502011]
#2571715
10/30/18 06:11 PM
10/30/18 06:11 PM
|
Joined: Jan 2003
Posts: 25,842
Rio Linda, CA
John_Kunkel
Too Many Posts
|
Too Many Posts
Joined: Jan 2003
Posts: 25,842
Rio Linda, CA
|
My kickdown rod is too short and seems to be making the car not kickdown and idle high. Why do you think the top rod is causing a high idle? From the pic you posted there is plenty of room in the top rod slot for the carb lever to come forward and idle down.
The INTERNET, the MISinformation superhighway
|
|
|
Re: 70 340 6 pack kickdown rod too short
[Re: John_Kunkel]
#2571888
10/30/18 11:33 PM
10/30/18 11:33 PM
|
Joined: Apr 2012
Posts: 364
US
f2502011
OP
enthusiast
|
OP
enthusiast
Joined: Apr 2012
Posts: 364
US
|
I don't. Shortly after posting the pic I realized it isn't based on the physics of it. The trans rod is too short though and I think and hope that is the trans kickdown issue. Otherwise I don't know.
High idle is still an issue and I'm still stumped. When it's warm and I can manually make sure it's down to normal curb idle around 1100. If not and I just drive it normal and then check it's 1500+. Don't see any hangup otherwise.
1970 EK2 T/A 727
|
|
|
Re: 70 340 6 pack kickdown rod too short
[Re: f2502011]
#2571947
10/31/18 02:44 AM
10/31/18 02:44 AM
|
Joined: Aug 2007
Posts: 566
WA
tman
mopar
|
mopar
Joined: Aug 2007
Posts: 566
WA
|
Not sure you have the kickdown adjusted right. This video touches on it. At around 8:47 discusses adjusting 1 pc linkage https://www.youtube.com/watch?v=FY9WTWayCC8What have you done to adjust idle? You can disconnect the kickdown rod away from the throttle and adjust there. This will eliminate any chance of the rod influencing the idle. Just put on the throttle return spring. Idle issue is not with the kickdown rod. I don't know if you get the carb linkage stuck on high idle cam on the other side or something binding. You should be able to get it down to 900. Doesn't look like the idle solenoid is touching the adjust screw, so that is not the issue either. How do you "manually" get it down to 1100? Then of course, what tach are you using. My stock one reads a bit high, I use a digital one on my timing light for better reading.
|
|
|
Re: 70 340 6 pack kickdown rod too short
[Re: f2502011]
#2572188
10/31/18 03:30 PM
10/31/18 03:30 PM
|
Joined: Jan 2003
Posts: 25,842
Rio Linda, CA
John_Kunkel
Too Many Posts
|
Too Many Posts
Joined: Jan 2003
Posts: 25,842
Rio Linda, CA
|
I don't. Shortly after posting the pic I realized it isn't based on the physics of it. The trans rod is too short though and I think and hope that is the trans kickdown issue. Otherwise I don't know. Have somebody sit in the car and floor the throttle then, from under the hood, push back on the carb lever to be sure it is at WOT then push back on the trans linkage rod to see how much travel is left at WOT; if there's more than 1/8" or so of remaining travel the linkage is the reason for no kickdown.
The INTERNET, the MISinformation superhighway
|
|
|
Re: 70 340 6 pack kickdown rod too short
[Re: John_Kunkel]
#2572255
10/31/18 05:03 PM
10/31/18 05:03 PM
|
Joined: Apr 2012
Posts: 364
US
f2502011
OP
enthusiast
|
OP
enthusiast
Joined: Apr 2012
Posts: 364
US
|
I don't. Shortly after posting the pic I realized it isn't based on the physics of it. The trans rod is too short though and I think and hope that is the trans kickdown issue. Otherwise I don't know. Have somebody sit in the car and floor the throttle then, from under the hood, push back on the carb lever to be sure it is at WOT then push back on the trans linkage rod to see how much travel is left at WOT; if there's more than 1/8" or so of remaining travel the linkage is the reason for no kickdown. Haven’t checked yet, but if it’s not the rod then what might it be?
1970 EK2 T/A 727
|
|
|
Re: 70 340 6 pack kickdown rod too short
[Re: tman]
#2573587
11/03/18 08:31 PM
11/03/18 08:31 PM
|
Joined: Apr 2012
Posts: 364
US
f2502011
OP
enthusiast
|
OP
enthusiast
Joined: Apr 2012
Posts: 364
US
|
Fix each issue separately. Disconnect the kickdown linkage from carb. Reattach throttle return spring and see what the idle issue is. 1500 is way too much unless you modified your motor above stock spec.
Once you have idle fixed, then reattach kickdown linkage and adjust it. You should send a photo with top view of of your linkages. I think its just adjustment for trans. You do know there is adjustment for the kickdown as seen on video. You do need to see if you are getting WOT and you said you haven't checked. Need to report that you did check.
Without being there, hard to tell what your issue is. I mentioned if your fast idle cam is interfering with your warm idle performance. Fast idle cam is used when cold and choke closed. If that stuff is not sorted, then that will contribute to fast idle that you cannot get down.
Supposedly stock and I have no reason to doubt that. I will recheck idle and send photos of linkages. I think I might be able to put a spacer in to let kick-down happen sooner??? I put the pedal as far to the floor as possible and no downshift.
1970 EK2 T/A 727
|
|
|
Re: 70 340 6 pack kickdown rod too short
[Re: 1Fast340]
#2574112
11/04/18 10:50 PM
11/04/18 10:50 PM
|
Joined: Apr 2012
Posts: 364
US
f2502011
OP
enthusiast
|
OP
enthusiast
Joined: Apr 2012
Posts: 364
US
|
as has been mentioned idle and kickdown are most certainly two different isues.
As have been mentioned already have someone sit in the car,engine shut of,with pedal to the floor check how much more you can push the kickdownlinkagerod back from that possition.
I dont have a clue how your linkage looks or is supposed to look but dont ever belive its right just because its supposed to be right,probably dont need to be correct either to work right.
is there no adjustment of kickdown down at the kickdown lever on the transmission?
Regarding idle,i would look for a vacumleak or timingisue.
Dont know what is a correct idle but i cant see why a stock 340 cant idle at 7-800 or so rpm warm. Did a check. Flooring the throttle definitely pushes the kickdown rod back as far as it can go and NO kickdown.
1970 EK2 T/A 727
|
|
|
Re: 70 340 6 pack kickdown rod too short
[Re: f2502011]
#2574192
11/05/18 12:40 AM
11/05/18 12:40 AM
|
Joined: Feb 2003
Posts: 2,810
Sobieski Wi
bee1971
master
|
master
Joined: Feb 2003
Posts: 2,810
Sobieski Wi
|
Definitely looks like your out of adjustment as far as length
And the angle on that bracket where your adjustment bolt is looks a little steep ‘
1971 Dodge Charger Superbee
2011 Ram Sport 1500 Quad Cab Deep Water Blue Loaded
Siberian Huskies
|
|
|
Re: 70 340 6 pack kickdown rod too short
[Re: tman]
#2574210
11/05/18 01:10 AM
11/05/18 01:10 AM
|
Joined: Apr 2012
Posts: 364
US
f2502011
OP
enthusiast
|
OP
enthusiast
Joined: Apr 2012
Posts: 364
US
|
Will the kickdown adjustment work or is it maxed out for longest travel?
When it is floored by someone in the car, did a second person push the throttle further back? If a person can push it back farther by hand, that means throttle cable is not pulling it all the way back.
Can’t go any further back.
1970 EK2 T/A 727
|
|
|
Re: 70 340 6 pack kickdown rod too short
[Re: bee1971]
#2574211
11/05/18 01:11 AM
11/05/18 01:11 AM
|
Joined: Apr 2012
Posts: 364
US
f2502011
OP
enthusiast
|
OP
enthusiast
Joined: Apr 2012
Posts: 364
US
|
Definitely looks like your out of adjustment as far as length
And the angle on that bracket where your adjustment bolt is looks a little steep ‘ Out of adjustment how?
1970 EK2 T/A 727
|
|
|
Re: 70 340 6 pack kickdown rod too short
[Re: f2502011]
#2574232
11/05/18 01:46 AM
11/05/18 01:46 AM
|
Joined: Feb 2003
Posts: 2,810
Sobieski Wi
bee1971
master
|
master
Joined: Feb 2003
Posts: 2,810
Sobieski Wi
|
You answered your own guestion
Can’t go any further back
So out of adjustment as far as length looking at the rod and adjustment bolt in that one picture
And the angle on that bracket looks steep where the one piece rod attaches to that bolt
You positive it’s the correct one piece rod ?
1971 Dodge Charger Superbee
2011 Ram Sport 1500 Quad Cab Deep Water Blue Loaded
Siberian Huskies
|
|
|
Re: 70 340 6 pack kickdown rod too short
[Re: f2502011]
#2574335
11/05/18 12:37 PM
11/05/18 12:37 PM
|
Joined: Apr 2012
Posts: 364
US
f2502011
OP
enthusiast
|
OP
enthusiast
Joined: Apr 2012
Posts: 364
US
|
Not sure I understand or maybe I didn't explain what it's doing correctly. I have no idea if it's the correct rod or not since it came to me this way but I can say that it looks like all the other rods I've seen on any other stock automatic T/A or AAR and also what I've seen in the service manuals.
Everything seems to be adjusted correctly even though some angles may look a little steep.
When someone floors the gas the carburetor goes WOT AND the rod is pushed back as far as it can go and it completely pushes in the kickdown valve to where IF the transmission could kickdown it would, but it won't. To me that means the issue is not the rod it has to do with the transmission itself.
What's the next step?
Last edited by f2502011; 11/05/18 11:19 PM.
1970 EK2 T/A 727
|
|
|
|
|
