Trim/Tilt problem 70 hp 1991 J/E

[ShaneCoughlin]

Hey guys. Someone has to have some experience with this trim unit. It is a really common tnt I think it was used from 78-98 and is the one with the one large ram for tilt and the two smaller for the trim. Mine is a Johnson 1991 70 hp vro. The motor whizzes along inside the thing. it will barely move up 1/5 of the way with no gusto at all, and drops when you let off the switch. There does not appear to be an external leak of fluid. I made sure that there was enough fluid in the system and the only way to move the motor up is to open the vent valve with a screwdriver otherwise it cannot be moved by hand......Anyone rebuild these things or by the description know what the problem is? I would welcome anything. I have been googling my brains out on it and I cannot find a rebuild kit for it either.....seems like it has o-rings and a brush kit for the motor etc but I am kind of clueless. Anyone rebuild one of these things and can point me in the right direction for the parts or tell me if it is a total pain to undertake. I am a really handy guy but to buy a rebuilt one is like $625, which I definately do not have. Thanks in advance!

 

[tashasdaddy]

Re: Trim/Tilt problem 70 hp 1991 J/E

try this, do not open emergency valve, have some one hold the up switch, while manually lift lower unit. get it all the way up, and locked in place, now add fluid, close reservoir. unlock motor, helper pushes down. repeat, repeat, repeat. after reservoir is full and tilt works, cycle about 6 more time to bleed air off. it is a slow process as the system will only take a little fluid at a time. Turkey baster bulb works well to add fluid.