"Spooner, Robert E." wrote:
>
> All,
> This past weekend, I lost reverse.  I left it on the road somewhere between Watertown, NY and the putin for the Beaver River.
>
> The tranny shifts fine through the forward speeds.
>
> Nothing happens when you shift into reverse, when the engine is cold.  Once there has been some miles under the wheels and everything is warmed up, she will shift into reverse and it works just fine.  When everything is warmed up, she does drop into reverse after a brief hesitation with a big "klunk".  Once the engine cools down, no reverse again.
>
> I checked the fluid level, and it seemed fine, but I added a bit just to be sure.
>
> Any ideas?
>
> Bob
> East Haddam, CT

two things to try:

1. changing to fancy smancy $ynthetic ATF.  Some folks swear by it.

2. Pull out the valve body.  Disassemble.  Clean and polish everything.
Reassemble.  Take your time.  Be very careful and organized.

Of course it might be a clutch sticking or something.  May be someone
with more experience has something to add.

good luck,
Larry A.