The Ford Barn - View Single Post - 49 Mercury overdrive transmission assembly question

Dick Webber · 02-08-2018, 09:13 PM

Wow! That is a real pretty transmission!

To clarify:
I am testing this unit with the overdrive lever in the lockout position, no solenoid attached, shifting cover off, and out of car. I made a tool to pull the balk ring out and I believe it is in position where I could attach the solenoid

The final drive does not freewheel and the unit works fine in second and neutral.

I am not in 2 gears at once

To test the overdrive for freewheeling I engaged the lockout lever and the output shift will freewheel.

The baffling thing is, if it turns in neutral and second, why doesn't high work? It's not stuck as the main drive will turn, but only a few degrees.

I'm going to try another synchronizer but even if it fixes high that doesn't explain low and reverse.

The cluster is 28-24-16-14 with a 16 tooth main and 29 tooth slider. I hope I remember this right. Notes are at the shop. It all turns smooth in neutral.

And if the synchro change doesn't work I have a conventional tail housing I can install to isolate a possible overdrive problem.

Thank you all for your ideas.

02-08-2018, 09:13 PM	#7
Dick Webber Senior Member Join Date: May 2010 Location: Bowling Green KY Posts: 337	Re: 49 Mercury overdrive transmission assembly question Wow! That is a real pretty transmission! To clarify: I am testing this unit with the overdrive lever in the lockout position, no solenoid attached, shifting cover off, and out of car. I made a tool to pull the balk ring out and I believe it is in position where I could attach the solenoid The final drive does not freewheel and the unit works fine in second and neutral. I am not in 2 gears at once To test the overdrive for freewheeling I engaged the lockout lever and the output shift will freewheel. The baffling thing is, if it turns in neutral and second, why doesn't high work? It's not stuck as the main drive will turn, but only a few degrees. I'm going to try another synchronizer but even if it fixes high that doesn't explain low and reverse. The cluster is 28-24-16-14 with a 16 tooth main and 29 tooth slider. I hope I remember this right. Notes are at the shop. It all turns smooth in neutral. And if the synchro change doesn't work I have a conventional tail housing I can install to isolate a possible overdrive problem. Thank you all for your ideas.