OK Huskyphiles, here's a curly one (hopefully it's a case of not seeing the forest for the trees).
I have a 1977 CR390 engine causing me some mental trauma in that I cannot get the shift system to go back to the neutral position after selecting a gear, it just stays put. I started with NOS cases, they virtually fall together during assembly so no misalignment there. I have had all shafts fitted with & without gears, all together & individually, all are free & move easily. I have had 3 different shift shafts, shift quadrants, shift locator & shift drums in with no success. The indent pointer & spring are also NOS. Even with just the shift shaft, locator, indent pointer & quadrant fitted & cases closed up, it just selects but does not return to the neutral position, there seems to be no tension on the spring (I've tried 3 different springs). I have done lots of these engines & even a 250 just yesterday morning without coming across this before. It's doing my head in as it's a very simple system. Any help/info much appreciated.
Cheers,
K