Notices
1948 - 1956 F1, F100 & Larger F-Series Trucks Discuss the Fat Fendered and Classic Ford Trucks

Overdrive relay

 
  #1  
Old 03-25-2019, 12:44 PM
Lawrence Petty
Lawrence Petty is offline
Freshman User
Thread Starter
Join Date: Feb 2007
Posts: 34
Lawrence Petty is starting off with a positive reputation.
Angry Overdrive relay

1955 Ford F100 - switching to 12v. Need wiring info/diagram on 12v OD relay. My old one had 6 wires going to it. Picked up a mid 60's Rambler 12v relay (think its #3167318) with 6 posts. However the posts have stampings on them that do not correlate to the Fords. It has two NO, NC, B, 1 & 2. Has fuse on one side stamped NO & B; one end crossed posts 1 & 2; other end crossed posts NC & NO. Can anyone help me getting this wired in as I already have all the other 12v stuff for the conversion. "[email protected]" or text 505-635-4291 ... can send pic
 
  #2  
Old 03-26-2019, 07:05 AM
turnrjr
turnrjr is offline
Elder User
Join Date: Feb 2006
Location: Western Massachusetts
Posts: 592
turnrjr has a good reputation on FTE.turnrjr has a good reputation on FTE.turnrjr has a good reputation on FTE.

There was a post on the HAMB about this. A guy gutted the stock relay enclosure and installed a modern 12 volt cube relay inside the old enclosure. I'm going to do this when my project gets to that point. I saved more details if you need them. Let me know.
 
  #3  
Old 03-26-2019, 07:35 AM
seef
seef is offline
New User
Join Date: Jan 2019
Posts: 14
seef is starting off with a positive reputation.
Originally Posted by turnrjr View Post
There was a post on the HAMB about this. A guy gutted the stock relay enclosure and installed a modern 12 volt cube relay inside the old enclosure. I'm going to do this when my project gets to that point. I saved more details if you need them. Let me know.
Hi, sorry to brake in like this, but any info will be apprciated. I'm rebuilding my 55 truck which has an overdrive but i don't know if the relay is still functioning or not, same goes for governor en solenoid. Your tip about rebuilding the relay with a simple modern cude relay is a great one. Save's me a bunch of $$$
So if you have a wiring diagram? That would be appriciated...
 
  #4  
Old 03-26-2019, 11:07 AM
ALBUQ F-1's Avatar
ALBUQ F-1
ALBUQ F-1 is offline
Post Fiend
Join Date: Jul 2004
Location: NM
Posts: 24,032
ALBUQ F-1 has a superb reputationALBUQ F-1 has a superb reputationALBUQ F-1 has a superb reputationALBUQ F-1 has a superb reputationALBUQ F-1 has a superb reputationALBUQ F-1 has a superb reputationALBUQ F-1 has a superb reputationALBUQ F-1 has a superb reputationALBUQ F-1 has a superb reputationALBUQ F-1 has a superb reputationALBUQ F-1 has a superb reputation
Does the cube-relay conversion momentarily kill power to the points like the original? I can't think how it would.
 
  #5  
Old 03-26-2019, 12:39 PM
NumberDummy's Avatar
NumberDummy
NumberDummy is offline
Ford Parts Specialist
Join Date: Nov 2006
Location: Simi Valley, CA
Posts: 81,892
NumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputation
B6AZ-7A651-A .. 12V Overdrive Relay / Obsolete

1956/58 F100 // 1956/58 Ford Passenger Cars & Thunderbird. Ditto 1959 before production date 6/1/1959.

HILLTOP CLASSICS in China Grove NC has 2 = 760-746-0400.

Studebaker used a similar 12V relay.
 
  #6  
Old 03-27-2019, 08:30 AM
turnrjr
turnrjr is offline
Elder User
Join Date: Feb 2006
Location: Western Massachusetts
Posts: 592
turnrjr has a good reputation on FTE.turnrjr has a good reputation on FTE.turnrjr has a good reputation on FTE.

Here is a good post/link on the subject from the HAMB: https://www.jalopyjournal.com/forum/.../#post-7985405
Also these are some things I saved for my use when I get to that point in my restoration.
Ross, admittedly I don't have an understanding of electrical theory beyond the basics. It was my understanding that one of the poles of the kick down switch under the gas petal initiates the brief interruption of ignition. Maybe I'm wrong??


 
  #7  
Old 03-27-2019, 09:27 AM
raytasch's Avatar
raytasch
raytasch is online now
Old guy with old toys
Join Date: Jun 2004
Location: W. Central FL.
Posts: 6,618
raytasch has a superb reputationraytasch has a superb reputationraytasch has a superb reputationraytasch has a superb reputationraytasch has a superb reputationraytasch has a superb reputationraytasch has a superb reputationraytasch has a superb reputationraytasch has a superb reputationraytasch has a superb reputationraytasch has a superb reputation
The ignition switch can be quickly switched off and on and the result will be the same as hitting the "kickdown" switch. The OD will disengage. Another interesting thing about these units, the governor can be bypassed and replaced with an "on - off" toggle switch which will give you six speeds forward by allowing the OD to be engaged in second and first gear. After fifty plus years I forget exactly what the problem is but the reverse interlock is affected and I believe you must pull the OD cable to get the unit out of OD before the vehicle will go into reverse. Or maybe the vehicle is prevented from going backwards. Use caution.
And of course, we all know the OD gives clutchless shifting once the vehicle is moving. .
IMO, the OD was the greatest feature one could have on these old vehicles.
 
  #8  
Old 03-27-2019, 09:32 AM
raytasch's Avatar
raytasch
raytasch is online now
Old guy with old toys
Join Date: Jun 2004
Location: W. Central FL.
Posts: 6,618
raytasch has a superb reputationraytasch has a superb reputationraytasch has a superb reputationraytasch has a superb reputationraytasch has a superb reputationraytasch has a superb reputationraytasch has a superb reputationraytasch has a superb reputationraytasch has a superb reputationraytasch has a superb reputationraytasch has a superb reputation
Duplicate post...…...Deleted
 
  #9  
Old 03-28-2019, 03:28 AM
seef
seef is offline
New User
Join Date: Jan 2019
Posts: 14
seef is starting off with a positive reputation.
THANKS! for the electrical scheme on the overdrive!
 
  #10  
Old 03-28-2019, 03:57 AM
seef
seef is offline
New User
Join Date: Jan 2019
Posts: 14
seef is starting off with a positive reputation.
Originally Posted by raytasch View Post
The ignition switch can be quickly switched off and on and the result will be the same as hitting the "kickdown" switch. The OD will disengage. Another interesting thing about these units, the governor can be bypassed and replaced with an "on - off" toggle switch which will give you six speeds forward by allowing the OD to be engaged in second and first gear.
Thanks for your info, would you, by any change, know how to test if the governor still functions?
 
  #11  
Old 03-28-2019, 07:25 AM
Jersey devil's Avatar
Jersey devil
Jersey devil is offline
Junior User
Join Date: Nov 2015
Location: South Jersey
Posts: 91
Jersey devil is starting off with a positive reputation.
Put governor in a vise, attach electric drill to shaft. Attach one lead of volt/ohm meter to governor lead and the other lead to the case of governor. Have meter set to test for continuity. As the spinning governor gets up to speed the meter should show full deflection or continuity. At that point the governor is acting as if if has reached it’s about 27 MPH cut in speed.

Hope me this helps,

tom
 
  #12  
Old 03-28-2019, 03:04 PM
seef
seef is offline
New User
Join Date: Jan 2019
Posts: 14
seef is starting off with a positive reputation.
GREAT! Thanks for enlightening me, will give this a shot!
 

Thread Tools
Search this Thread

Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.