Sunday I went for a non-ethanol gas run which is a total 40 mile run at sustained higher speeds, 60-80. It was a hot day, 90 degrees. Car was running mostly at 90C on my gauge, up to 110 when I left the station after filling but in relative short order came back to 90C.
When I got home, I went to back into the garage and the car did not want to go into reverse. I had no trouble in any of the forward gears. It would grind to try get into reverse and not the slow type like I’ll get in a couple of my other cars where with a little coaxing will slip in. There was no way I was going to force this situation. I will add that things were really hot and cooking driving at speed on a hot day. The transmission tunnel was certainly warm, the chrome part of the stick quite hot. The engine temp was climbing fiddling around to park and by the time I turned the car off it was belching coolant.
Two days later, started up like it was never turned off (coolant topped off) and slipped into reverse numerous times (cold) with nary a sound or resistance. I recently did change the tranny oil to Royal Purple 75 W 90. I also went to a smaller master clutch cylinder to get a lighter pedal, but up until the hot, hot ride, never had an issue with any gear after the conversion. I did pump the clutch a couple of times and bury it into the floor to try get into reverse to no avail when the issue presented. I was able to get into reverse and engage normally with the clutch if I turned the car off, put in reverse, and restarted with the clutch in which I had to do three times to turn the car around and back in.
Any thoughts on the issue?