adyv8 Posted July 22, 2017 Share Posted July 22, 2017 after 27 years I have got the right hand drive 1936 Lincoln zephyr running converted to auto c4 mustang box as I am disabled the transmission wont play no power in any gear will drive but wont pull the skin off a rice pudding the flatomatic man cant help says all should be well the transmission man here has no answers has anybody on this forum fitted a flatomatic kit or knows anybody that has ?????? so I can get in touch I am over the pond in uk colin spong no answers hope someone can help Adrian brown adyv12zephyr@hotmail.co.uk Link to comment Share on other sites More sharing options...
abelincoln Posted July 23, 2017 Share Posted July 23, 2017 Adrian: Not familiar with flatomatic, but have torn apart several ford automatics. Sounds to me like very low oil level or something in the torque converter isn't getting pressure to the connection. The C4 is generally pretty rugged. If you are adventuresome, get a later model with more gears and adapt to open drive line or fab a torque tube adapter. Abe Link to comment Share on other sites More sharing options...
19tom40 Posted July 23, 2017 Share Posted July 23, 2017 No power is a very general term. It could be transmission or engine related. Does the engine rev up nicely and sound strong with no missing? Have you checked the compression on the engine? Does the engine have good spark? Does the transmission go through all of the gears or does it shift sluggishly? How quickly does the car go from 0 mph to 40 mph? Does the engine seem to race like a slipping clutch when you accelerate? Link to comment Share on other sites More sharing options...
adyv8 Posted July 23, 2017 Author Share Posted July 23, 2017 hi both the engine has been overhauled and all is ok yes it does/ race engine seem to race like a slipping clutch when you accelerate speed 0 to 40 forever will do 18 in first 40 in second but only 50 in 3 rd revving its heart out in all gears also have to drive it like a manual wont play in drive best example took car for a tracking steering check would not go on ramp engine revving no torque / power to go on ramp ?? crawled in the end on ramp oil level correct running in park e.t.c. have adjusted the vac unit no help as gene at flatomatic said up any hill rubbish please scratch your brains thanks ady Link to comment Share on other sites More sharing options...
Ken/Alabama Posted July 24, 2017 Share Posted July 24, 2017 Curious as to what rear axle your using. ? Link to comment Share on other sites More sharing options...
adyv8 Posted July 24, 2017 Author Share Posted July 24, 2017 hi I have had the axle overhauled and a open drive kit fitted speedway crown wheel and pinion 3.54 no overdrive thanks ady Link to comment Share on other sites More sharing options...
19tom40 Posted July 24, 2017 Share Posted July 24, 2017 Your engine may not be providing the correct vacuum for the modulator. Is the hose connection at the modulator the same diameter as the engine port? The fluid level should be checked with the shift lever in Drive and the transmission at operating temperature. Here is a link to a trouble shooting guide for the C4 transmission. http://diyford.com/ford-c4-c6-transmission-trouble-shooting-guide/ Link to comment Share on other sites More sharing options...
Ken/Alabama Posted July 24, 2017 Share Posted July 24, 2017 Sounds like something not correct with the transmission. Fluid level, slipping , bad torque converter . Link to comment Share on other sites More sharing options...
peecher Posted July 25, 2017 Share Posted July 25, 2017 Sounds like one of two things could be wrong: either the one way stator clutch in the torque convertor is bad/slipping or the main forward clutch in the transmission is slipping. If the slipping is present in Reverse I suspect the problem is in the torque convertor. Link to comment Share on other sites More sharing options...
adyv8 Posted July 25, 2017 Author Share Posted July 25, 2017 hi thanks for the reply's back with the man who overhauled the box will let you know what he finds thanks ady Link to comment Share on other sites More sharing options...
adyv8 Posted July 28, 2017 Author Share Posted July 28, 2017 hi had the box check out all well very low vacuum at inlet manifold only 10 poss fault on manifold ? will disconnect wipers and dist to recheck colin spong here in England said common fault on early maifolds anybody had this trouble thanks ady Link to comment Share on other sites More sharing options...
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