Started by Sasquatch, November 13, 2017, 02:27 PM
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Quote from: Sasquatch on April 04, 2018, 02:03 PMKeep in mind that this is the two wire non-lockup unit. How I did mine was to wire 12 volts through a toggle switch on the dash, then to a vacuum switch on the manifold then to the OD solenoid. What I was thinking, was that I could just leave the switch on, and if the vacuum was above 7" it would turn the OD on, below it would turn it off. Good in theory, bad in practice.When I started pulling a hill the vac dropped. It would kick the OD off, then the vac would instantly jump up, turning it back on. This caused the OD to kick on and off. I resolved it by bypassing the vacuum switch and going completely manual. But the problem that caused this failure was still there hiding in the shadows. It was way more drivable with just the manual switch. In fact, I am going to buy a shift knob from a Semi truck with the flip switch built into it for their gear splitter and replace my knob with it. That way I can just flip OD on and off without reaching for the dash when needed.
Quote from: Wantawinnie on April 04, 2018, 11:26 AMReally sorry to hear you had a breakdown. I was curious when you said earlier on the trip down how it was banging in and out of overdrive. Was that perhaps the lockup converter engaging? How is your "manual" setup operated now that the vacuum setup is unhooked? On mine the solenoid for overdrive is either powered and in overdrive or not. I flip mine into overdrive at around 45mph and flip it out when slowing down below that mph. How was it still going into and out of overdrive on its own? Like you I am wondering what went wrong and ,provided there is no obvious mechanical issue, what else may have happened.