Sailorchic is correct as usual. The adjustments are different for forward and reverse, but they are simple and if you remove the tranny plate and mount a small mirror, you can easily make the adjustments yourself. I did this earlier this year. Also, check your Morse cable mount: if the bracket (it's usually a L-shaped bracket on the rear bulkhead of the engine
bay) is even a little loose, you can impart so much "slop" to the shifter throw that you can't find your gears with a searchlight.
Get the Moyer Marine
A4 manual or the original A4 manual. There are others, such as E&C Marine's service
manual or the yellow "Seacraft" book, that you can frequently find used.
Of course, it's up to you, but if I can, with no history
of shop class and no record
of car or motorcycle ownership
, replace, rebuild
, reinstall and maintain a 40-year-old Atomic 4 to a high standard of reliability
, it cannot be that hard. You will not find a better inboard for short-haul, recreational sailing, either. Diesels don't make sense for "off the dock
in 10 minutes" sorts of sailing, not to mention that there isn't a diesel
made that wouldn't cost more than even a mint condition Newport
30 of that era.