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By Montereycruiser - 11 Years Ago
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Please advise if this post doesn´t belong here. I need some good advise from someone familiar with the 3-speed single range Ford-o-matics. I have a 1959 Mercury Monterey with 312 Y-block and Merc-o-matic transmission. It´s the small case trans, starts in second gear and shifts to third when started in Drive position, same as the Ford-o-matic. The only way to make it start in first gear (Low) is putting the selector in L.
Now for the issue: After making oil and filter change, band adjustments and throttle lever adjustments according to the shop manual it shifts wonderfully, the hard shifts 2-3-2 up and down are gone and shifts are smooth and fine. Reverse and Drive engage fine from neutral cold and hot but shifting from neutral to Low there´s a delay. At first there is kind of a "clunk" that you can hear and feel but then it takes a moment before the next "clunk" when car begins to move forward. Shifting directly from Reverse to Low there is no delay but from Neutral or Drive there is.
There are no strange sounds, no whining or rattle, no slipping in any gear, the bands are properly adjusted, oil level is OK, throttle rod is adjusted to specs and there are no oil leaks.
Is this a problem or to be considered normal?
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By 2721955meteor - 11 Years Ago
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acording to my old manual it claims ther ar 2diferent lows. the manual low is atained diferently than low in drive.cant find the manual but it is hear and when i fins will follow up. ther is probly a ford trany gewroo who will ad to this. this to my mind is your isue that would seem normal,tho if delay lencthey my indicat some leakag.anothe posability is idel to high causing the clunk.with lincage set corectly your presures will be higher.
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By Jeff - 11 Years Ago
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My '56 and '57 Fords with Fordomatics operate just as you described when putting the transmission in low gear. For example, at a stop sign, I'll pull it down into low gear and there is a slight hesitation and a slight commotion from the transmission when the shift occurs. They perform fine in normal driving and I just attribute this behavior to the nature of the beast.
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By fordman51 - 11 Years Ago
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hi ,i am new to your web site and looks great , i have an origanal 1951 ford with a cast iron bell housing , (fordomatic 3 speed ), and i have a bad tranny leak , cleaned it down , and looks like it is coming from the front of the tranny, can any of the members help me with this one , also ,i would like to get my hands on a spare one so i can do it up ,also a repair manual, i am your friend from down under ,and a ford buff, . 70 years of age still going strong , (its my ford keeping me young ), so, any help would be for ever gratefull .
cheers , KEEP SAFE , fordman51
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By 2721955meteor - 11 Years Ago
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it is most likley the front pump seal,and often the bushing in front pump worn(same pump as bw reverse gear,. the other leak source is converter oring.get a early motors repair manual they walk you threw the over haul. they ar a easey trans to do and gettiung parts will be your only isue
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