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81 Penta Outdrive wont go down

M

motoroiljig

New member
"Here is the problem maybe som

"Here is the problem maybe someone can help.

Ling cod fishing I raised the tilt up to make sure a line didnt hit it, When I went to trim down, the outdrive will not go down. There is no noise or anything. I called vessel assist after looking at it and hearing nothing when clicking trim down.

Finally we got the outdrive down manually by releasing it, so we made it back to Edmonds WA safely.

I got out the trouble shooting manual, and I tried everything! New fuses for up and down, we connected a 12v Jumper wire straight to the blue wire for up (like it said) and the outdrive went up. Connected it to the green wire for down, nothing. Like it has no power not even a sound.

After that we took about the switch, and did the same thing. Connected the 12v jumper wire to the up, it went up. Connected it to down, nothing...silence.

Do I need a new hydrolic pump? Is it possibly a solenoid? I read that the solenoid can be replaced for a lot cheaper then the pump. Time's are tough! I would rather not spend a lot of money but I will have to if it is not a simple solution.

A note.

I installed 2 new batteries to my boat this trip, and I know for a fact I connected everything Back exactly how it was. So I disconnected everything again and reconnected it. Same thing. am I missing something?"
 
"I would start checking the wi

"I would start checking the wiring (both visually and with the help of a multimeter), then check the down relay."
 
"If you don't hear a relay

"If you don't hear a relay clicking when you move the switch to "down", checking the green wire will not help. You need to make sure that there is power reaching the relay coil (terminals 85 or 86) when you move the toggle switch and you also need to verify that there is power from the battery reaching terminals 30 or 87 on the relay. I believe that the 8.1 trim wiring also has a fuse, which you should check.

Here is a schematic of a typical relay.

285394.jpg
"
 
"Kyle,

I've had the sam

"Kyle,

I've had the same trouble with my 8.1/DPS over here in QLD. I've found that the up and down relays suffer badly from Green Death (Ambergris),especially if there is a chance of them getting exposed to salt spray. I have fitted new relays and installed them into their plugs with heaps of dialectic grease. I then placed the relays and harness into a heavy duty plastic bag and taped it closed tight around the harness they are on. No more trouble."
 
"If this unit has a limit swit

"If this unit has a limit switch like the electrics- we found them pushed open and stuck. Try going up just 1/2 way (before it hits the limit switch) and then see if it will go back down. I'm not real familiar with Volvos hydrolic system, so it's just a thought."
 
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