Reply To: 1976 Johnson tilt/trim hydraulics

[Don]

OK, so you need a new trim cylinder then, probably got water inside and rusted up.  You could try to disassemble it, but most likely too far gone.   I kind of doubt you will ever find a NOS trim unit for this engine, very rare.  Perhaps a used unit, but sounds like all you need is a trim cylinder, so no need to replace the whole assembly.  I’m assuming this engine has only been used in the fresh water, or else it would have rotted away years ago.

Johnson Power Tilt And Trim Parts for 1976 85hp 85ETLR76D Outboard Motor (marineengine.com)

Looks like the part number is:  172571

I will start looking, you never know, one might turn up.

Keep in mind that that cylinder can be disassembled, might be worth a try…  Might be able to find repair parts for it.