Thank you for sharing your experiences with the transmission.
All the settings, adjustments were done per the shop manual and service bulletin updates.
With all the pressures checked and confirmed and the only tell being the delay in pressure build up from zero at idle and the fact it takes approximately 25% of the pedal to move the pressure gauge needle the current thought is to drop
the pan and inspect the governor assembly.
Fingers crossed
🤞 the problems can be corrected without pulling the transmission.
Thanks again for your help as well all the others in this great brotherhood of the 300 club.
I changed the intake manifold and carb on a Newport years ago and did not adjust that throttle rod- was surprised when the 727 shifted differently (late). Didn’t realize they are set to things like that but it really does affect it.
Our 64 Newport shifts a little late when cold only when it’s either
1) low on ATF or
2) has been sitting a while.
WRT 2 above, does the torque converter drain out after sitting and cause that? I wonder if that could be part of Gary’s issue (if there are internal seals that might be leaking too much) but I’m not familiar with the mechanics of the 727
yet.
Gary, I know Don Verity usually pays attention to the listserv but you might call him about this and talk it through first. Also, did you adjust the throttle rod to the shop manual specifications? Very important.
