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another tilt trim question

77galaxy

77galaxy

Member
After installing lower shift cable and doing the cable adjustment i found a problem. while in nuetral trim doesnt work in up position only. If i move the shift handle forewarda little it works. From what i understand the trim switch should work in any position Forward, nuetral, and reverse. Looks like a position switch is mounted on the shift plate. the blue wire "up" circuit runs through this switch. Is this just out of adjustment???
 
Take pics and post.

Your stuff is too old to remember.

1977, thats 33 years ago. dont think anyone here can remember 3 years ago..........
 
shifter is brand spanking new.
this is how i wired it
red to red, green to green, blue to blue, did not use purple wire from boat harness. new shifter didn't have purple wire so i taped it back.
 
Ohhhhhhhhhhhhhhh

some more important info you so convienently forgot to tell us...............

WTF
 
if you want suggestions and maybe answers you must tell us ALLLLLLLLLLLL the details...........................we are not mind readers...............
 
" From what i understand the trim switch should work in any position Forward, nuetral, and reverse."

Only until the trim limit switch kicks in to play during UP movement. Then only the trailer switch will raise it. If it is in the driveway the bow must be lowered to allow full range operation of the trim switch or else the limit switch activates quickly.
 
8a95805f.jpg
 
when in nuetral and reverse the switch is open and drive will not trim up.
when in foreward only the switch is closed completing the circuit and letting the drive trim up.
I have tried to re-adjust the cables to move the lever slightly but when that happens i end up with no reverse and nuetral.
i know im missing something simple but i just cant figure it out.
 
Ok, here is how the switch can be adjusted.
The top plate (lever) that the two control cables
bolt to is seperate from the middle section with the
cam lobe that actuates the switch. So I loosened the
two 3/8 nuts then holding the lever and cables in place
I rotated the middle section only so it did not enterfear
with the shift cables. Now the trim works perfectly in any
gear. The only thing I don't understand is why the switch
is there...
 
Is there a hydraulic line attached to that assembly?

If so, back in that day they did not have a reverse lockout valve internal to the pump vavle body. They had a mechanical "switch" that when shifted into reverse the hydraulic fluid would be shot off so the outdrive would not kick up. Todays pumps controll this in the vavle body.

Without a reverse lockout vavle either in the vavle body or out, the outdrive will kick up when in reverse and throttle applied.

When I have time I will look at an old manual to see what it is for.

Maybe someone else here will remember what the elec switch does...........
 
Ok after readin up on this and there is not much about it I came to this conclusion

The electric switch is designed to work in conjuction with the mechanical reverse lockout switch.

So when you shift into reverse the reverse lock out mechanical (hydraulic) switch blocks the outdrive from being able to kick up when throttle is applied. Therefore the switch also shuts down the ability to activate the pump in the up (blue wire) direction.

If you think about it the mechanical lockout shuts down (blocks) hydraulic fluid from moving to keep the drive down when in reverse. If the pump worked you would over pressurize the lines or the mechanical (hydraulic) lock out switch and possibly blow one out or the switch/vavle.

SO the reverse lock out and the switch with the blue wires work in unison. When the reverse lockout valve/switch is active by way of the shift lever being in reverse the electric switch should be OPEN so the pump will NOT work .

Does this make sense???

That is my take on it. This configuration is a bit before my time in the business and did not work on many if any...........
 
Ok, that makes alot of sense. So I do need to adjust it so
it will not trim up in reverse, correct? And thanks for the
extra effort it really means alot to those of us who are learning.
 
I would say yes to that adjustment.

Maybe if there is someone here with soem old time knowlege of this type of trim/shift system they may chime in.
 
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