When setting total end clearnace leave the teflon seals off of the input shaft and stator support and it will make dropping the pump in a whole lot easier (leave the huge O ring pump to case seal off too).Ħ. Discoloration is ok but if its grooved enough to catch your fingernail then throw it away and replace it.ĥ. When assembling the pump check the rotor pocket for wear. Lots of them leak bad there causing low fluid pressure.Ĥ. Air check the input drum like the ATSG manual says and look for leaks around where the input shaft is pressed into the drum. Fitzall/Sonnax makes a cheap repair kit if you find some worn check ball holes.ģ. If the unit has a lot of miles check the spacer plate where the check balls seat as they get wallowed out and the check balls can stick causing 2nd gear starts and all kinds of weird issues. If you can see daylight with a straight edge across the surface then replace it (theyre cheap).Ģ. If its dished due to wear the band will get cooked quick. Make SURE the rev input drum where the band applies is flat. More FYI stuff thats Ive learned from other ppl or the hard way (usually the latter):ġ. Some builders will leave BOTH the check ball and retainer out but good God the torque converter clutch hits really really hard (too hard IMO). I leave that check ball out in all the full size 4x4 units I build that are going into trucks that get used for towing, hauling, or any other heavy duty use. thanks jasonįYI, leaving out that check ball only increases the torque converter clutch apply force not any of the actual gear train clutches (didnt know if you were aware of that). one of your members "myclone" seems very knowledgable about 700r4. i have read a few post and it seems like some of the members know a bit about the 700r4 i suppose it is popular with the pro touring community. i have built several that are behind high horsepower heavy street legal style cars. i consider myself advanced with these two trannys. i have only got experiance with th350 and powerglides. also any other suggestions would be big help. In the atsg manual it says to leave out the ball in the turbine shaft for heavy duty applications for firmer clutch apply.
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