Post by Nacho-RT74 on Oct 7, 2007 19:04:53 GMT -5
Some of this topics are linked from one to another, but you won't need to click on them... all are here
First... the first doubts came out on board ong time ago:
www.dodgecharger.com/forum/index.php/topic,12068.0.html
www.dodgecharger.com/forum/index.php/topic,12740.0.html
then I analize my assembly and learnt how the 2 speeds system is assemblied and works:
www.dodgecharger.com/forum/index.php/topic,15057.0.html
after all, started to grow up all the doubts about the V/3 speeds and 2 speeds difference inside me, specially because I wanted the upgrade:
www.dodgecharger.com/forum/index.php/topic,23779.0.html
www.dodgecharger.com/forum/index.php/topic,29706.0.html
then the hunt started:
www.dodgecharger.com/forum/index.php/topic,31527.0.html
Searching about doubts, PN etc, got to ask to a remanufacturer about the parking stuff between both systems. AND GOT THE ANSWER
Hi Nacho, the 3 speed motor for your car does not use an external parking cam assembly. The 2 speed motors require this feature, 3 speed motors have this built into the motor itself. The motor 3431624 will work, I believe that you will require the crank arm w/pin part number 3431635 to connect to the drivers side linkage. Speaking of the drivers side linkage, this may have to be replaced as well.
Your 2 speed will use linkage arm part number 3431646 and the 3 speed requires linkage arm 3431647. These part numbers are from my 1973 parts manual, hopefully it is the same for 1974. You will also have to locate a switch as you cannot use a 2 speed switch with a 3 speed motor.
When you see the three speed motor, look closely at the out put shaft. You will notice that the shaft is not directly in the center of the motor. When the motor is turned on, the shaft changes position to allow or cleaning of the glass. When turned off, the shaft rotates backwards for 1/2 a revolution and then it goes back to its offset position and pulls the blades under the hood opening. The 2 speed motor has a single straight out put shaft and when it is reversed nothing happens except it just goes in reverse. To complete the pulling of the blades under the hood opening, it requires the external parking cam assembly to accomplish this feature.
This sounds confusing and it is. But some genius at Chrysler came up with this idea 30+ years ago and it does work.
Hopefully this helps.
Take care,
Rick.
also got a pic show diff from on line service manuals
Found the assembly from a 74SE donor but PN didn't match with he stated and what 400/6/PACK showed on pics, that was my last doubts about AND GOT WHY IS THAT!!!
there was two kind of assemblies... all with plastic bushings but some just with bushing to clip on and some others with bushings where shafts need retainers. probably bushings are the same just shafts are longers, trought bushing ( without top, just a hole to pass throught ) and use retainers. all interchangeable as full assembly. Probably parts too with some small mods
Pic of retainers assembly below. Crank shaft retainer is not visible, but mostly sure is the same because the catalog pics and service manual pic.
First... the first doubts came out on board ong time ago:
www.dodgecharger.com/forum/index.php/topic,12068.0.html
www.dodgecharger.com/forum/index.php/topic,12740.0.html
then I analize my assembly and learnt how the 2 speeds system is assemblied and works:
www.dodgecharger.com/forum/index.php/topic,15057.0.html
after all, started to grow up all the doubts about the V/3 speeds and 2 speeds difference inside me, specially because I wanted the upgrade:
www.dodgecharger.com/forum/index.php/topic,23779.0.html
www.dodgecharger.com/forum/index.php/topic,29706.0.html
then the hunt started:
www.dodgecharger.com/forum/index.php/topic,31527.0.html
Searching about doubts, PN etc, got to ask to a remanufacturer about the parking stuff between both systems. AND GOT THE ANSWER
Hi Nacho, the 3 speed motor for your car does not use an external parking cam assembly. The 2 speed motors require this feature, 3 speed motors have this built into the motor itself. The motor 3431624 will work, I believe that you will require the crank arm w/pin part number 3431635 to connect to the drivers side linkage. Speaking of the drivers side linkage, this may have to be replaced as well.
Your 2 speed will use linkage arm part number 3431646 and the 3 speed requires linkage arm 3431647. These part numbers are from my 1973 parts manual, hopefully it is the same for 1974. You will also have to locate a switch as you cannot use a 2 speed switch with a 3 speed motor.
When you see the three speed motor, look closely at the out put shaft. You will notice that the shaft is not directly in the center of the motor. When the motor is turned on, the shaft changes position to allow or cleaning of the glass. When turned off, the shaft rotates backwards for 1/2 a revolution and then it goes back to its offset position and pulls the blades under the hood opening. The 2 speed motor has a single straight out put shaft and when it is reversed nothing happens except it just goes in reverse. To complete the pulling of the blades under the hood opening, it requires the external parking cam assembly to accomplish this feature.
This sounds confusing and it is. But some genius at Chrysler came up with this idea 30+ years ago and it does work.
Hopefully this helps.
Take care,
Rick.
also got a pic show diff from on line service manuals
Found the assembly from a 74SE donor but PN didn't match with he stated and what 400/6/PACK showed on pics, that was my last doubts about AND GOT WHY IS THAT!!!
there was two kind of assemblies... all with plastic bushings but some just with bushing to clip on and some others with bushings where shafts need retainers. probably bushings are the same just shafts are longers, trought bushing ( without top, just a hole to pass throught ) and use retainers. all interchangeable as full assembly. Probably parts too with some small mods
Pic of retainers assembly below. Crank shaft retainer is not visible, but mostly sure is the same because the catalog pics and service manual pic.