Higgins Transmissions

" hello,

I was wondering i

" hello,

I was wondering if someone out there would have knowledge of the repair/maintenance of a higgins transmission ?

i have one in my 1941 fishing boat attached to a detroit diesel 671. the engine and higgins transmission are from the same era, they were put in the boat when it was built.

the transmission has been slipping lately, due to non use.. i let it sit about 1 year total...
When I tried to take her out of the dock for the first time in about a year today, the transmission did not engage in forward or reverse, but then after about 25 minutes of shifting it did.
but, i can tell it is slipping and not fully engaging.

I was thinking that there might be some clutches or bands to adjust..
I did actually run it about 6 months ago, and it was strong and fine...just sitting too long without running I guess.

Also, what weight and type of fluid should I be using in it ?
I was told by a couple of other skippers to just use 40 weight motor oil ...

any ideas where I can find help with this transmission ?


thanks for your time,

kevin rea "