Volvo 280 Trim troubleshooting

Modemagic

Seaman
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Jun 12, 2008
Messages
52
While starting to do a bit of work on the boat, I decided to see what I could do about the outdrive sitting so low to the ground. I hotwired the ignition, (I have a new cylinder purchased and on the way) and tested the various functions of the boat. Bilge pump, blower motor, lights, etc. I went to hit the trim and nothing. The light was on, on the trim controller, but I've spent too many years under dash of cars doing remote starts to know that doesn't mean anything. I checked for voltage behind the switch as well as voltage going out to the rear of the boat.

Traced the wires back to the boat and they lead into a plastic box located on the top of a cylinder. Those wires seemed solid and there were two more cables coming out. One cable has two conductors in it, leading to the motor. The other has two cables coming out of it, one leading to ground, the second leading no where. Aha! Found both ends of the melted and corroded supply wire, and redid the connection. Hit the switch and the outdrive dropped as it should! YES! Easy fix.....

I noticed the motor was loose, so I tightened it down nice and tight. I went to hit the switch to raise it back up and nothing. Argh! Retest voltage at the switch, yes, it's there. I unplugged the motor wires and reversed them. Remembering that the 'down' works, I hit the down with the wires reversed and the outdrive raised! Simple reverse polarity setup using two relays, resting at ground. Easy fix!

My questions are as follows:

1. In this box I'm guessing there are a few simple relays to safely accomodate the higher current requirements of the trim motor. Is there anything else in that box besides them? (they are waterproofed I'm sure) I'm thinking I can disassemble the box and either fix the faulty relay, or replace both of them and build a similar waterproof box for my new electric setup.

2. My outdrive being raised did not quite go up high enough to use the safety/trailering bar. Is this trim a motor that operates a worm drive of some sort or a hydraulic method of some sort? I'm not 100% positive of the bars location, as to what holes it is supposed to be in. Maybe I have it in too forward of a hole? It appears as though a bar runs into the boat, is that some sort of release from inside of the boat? I included pictures as always for reference.

IM000733.JPG


IM000734.JPG


IM000735.JPG


This is showing how high the outdrive is in relation to the transom and it's range of motion. It's a Volvo 1983 280 with 125hp 4-cyl Volvo motor connected to it.
 

Modemagic

Seaman
Joined
Jun 12, 2008
Messages
52
Re: Volvo 280 Trim troubleshooting

After quite a bit of searching on here I think I have the answer to several questions that I previously asked. It looks as though the plastic box can be opened to easily service the relays inside of it. Bonus! My boat only has the one set of relays mounted into the box, with no set up front. There is just a cable with individual conductors running to the rear and triggering those relays. I'll be taking it apart to make the necessary repairs.

My question still remains though about that transport bar though. I'm not sure if i am at my maximum and maybe i'm missing something as to securing it. Thoughts/ideas anyone?
 

Don S

Honorary Moderator Emeritus
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Messages
62,321
Re: Volvo 280 Trim troubleshooting

The only ones that have "relays up front" are those with trim. Your 280 does not have trim, only a mechanical lift to tilt the drive up completely.
If you also look at the photo in the link below,
http://www.dragginframe.com/images/Boat/IM000733.JPG
you need to put that brace on the opposite side of the lockdown mechanism. Otherwise you are going to mess up some expensive parts.
I posted a manual that covers your drive, might want to download it and spend some study time on your electrical and mechanical lockdown system. It's quite the PITA.
http://www.4shared.com/account/file/48536730/fa3b3311/280_to_DP-C_Drive_manual.html
 

Modemagic

Seaman
Joined
Jun 12, 2008
Messages
52
Re: Volvo 280 Trim troubleshooting

I guess that's the question I'm asking. I'm not sure if that is setup correctly. In the picture below,

http://www.dragginframe.com/images/Boat/IM000734.JPG

The bar is in the rear-most holes and it seems as though the motor does not go up quite high enough for the bar to go in and lockdown. Is this due to the bar in the wrong set of holes, or due to something else? Will it release automatically then??

Is there a simply operating manual available for the 280?

Page 130 of the manual has my setup, as well as reconditioning, which is a great find! Definitely keep a copy of it handy.... just in case, Thanks!
 

Modemagic

Seaman
Joined
Jun 12, 2008
Messages
52
Re: Volvo 280 Trim troubleshooting

So far your information has proven to be invaluable.

From what I am gathering the trailering bracket connects to where the reverse lock is. Is it possible I am simply putting it in wrong? Maybe it should go in to the reverse lock first, followed by putting the ends in the holes? I'm at a loss.... :(

I'm not sure if I'm misusing the database or what. I don't see anything on the Volvo 280 outdrive, and the engine for a gas powered, 125hp, 4 cylinder motor in 1983 is listed as a BB125A.. does that sound right? There are no manuals or anything listed for that either. :( I thought it was an AD or AQ model number.
 

Don S

Honorary Moderator Emeritus
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Messages
62,321
Re: Volvo 280 Trim troubleshooting

No, the BB stands for inboard applications. No outdrives.
The drives aren't listed seperatly, you have to download the manual for YOUR engine.
If you actually have a 125, then just type in AQ125 in the engine type block.
You never have mentioned what engine you have, so I can't help you with that part of it.
 

jastacey

Petty Officer 2nd Class
Joined
Jan 25, 2004
Messages
173
Re: Volvo 280 Trim troubleshooting

I had a 280 outdrive, untill recently, how I used the trailering bracket, I rested the bracket between the locking pawls and the cavation plate, some brackets have a small V welded to them to keep the drive some what centered, I also used a short piece of rope and tied the bracket to/through/ around the outdrive, to prevent the bracket from falling out from a bump in the road when trailering the boat, one important item, the boat trailer should be level to the road when towing, when it is done that way you will have plenty of clearance between the road and outdrive
 

Modemagic

Seaman
Joined
Jun 12, 2008
Messages
52
Re: Volvo 280 Trim troubleshooting

I had a 280 outdrive, untill recently, how I used the trailering bracket, I rested the bracket between the locking pawls and the cavation plate, some brackets have a small V welded to them to keep the drive some what centered, I also used a short piece of rope and tied the bracket to/through/ around the outdrive, to prevent the bracket from falling out from a bump in the road when trailering the boat, one important item, the boat trailer should be level to the road when towing, when it is done that way you will have plenty of clearance between the road and outdrive


Maybe I'm trying to connect it to the wrong place. The cavation plate in my picture is the piece with the holes in it, correct? The locking pawls I believe are where I am trying to connect it to. Those are the locks that connect to the bar for the reverse lock right? How do you put it in? put it in the pawls first, then the bracket into the cavation plate?
 

jastacey

Petty Officer 2nd Class
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Jan 25, 2004
Messages
173
Re: Volvo 280 Trim troubleshooting

In your photo, your trailering bracket is resting on the locking pawls, I used to place the bracket between the pawls and the first ridge on the lower unit, if looking at the photo, move the bracket down till the outdrive is between the pawls assembly and the first fin on the outdrive, where the bracket connects to the transom assembly is in the correct position, that's where I always fitted the bracket, and it worked for me
 

jastacey

Petty Officer 2nd Class
Joined
Jan 25, 2004
Messages
173
Re: Volvo 280 Trim troubleshooting

Also you can use the set of holes that are above the 3 sets of holes ( this is were the bar that is used to set your trim angle, and were the locking pawls lonk on to, I've always have set it to the middle setting ) The cavatation plate is the area on the outdrive ( where the exhaust comes out ) the area where the holes are, is your transom shield
 

Modemagic

Seaman
Joined
Jun 12, 2008
Messages
52
Re: Volvo 280 Trim troubleshooting

Also you can use the set of holes that are above the 3 sets of holes ( this is were the bar that is used to set your trim angle, and were the locking pawls lonk on to, I've always have set it to the middle setting ) The cavatation plate is the area on the outdrive ( where the exhaust comes out ) the area where the holes are, is your transom shield

Don S., I got the Volvo manual figured out thanks to your help. I think the error was related to inboard and stern drive. My oversight. :( Thanks for ALL your input though!

jastacey, When I get home tonight, I think I'm going to try to put it in that middle upper hole and see wheere it lands on the outdrive. I guess I was under the impression that the bracket was supposed to lock into the pawls, but it doesn't sound as that is the case?!?! Is that true? It sounds as though you just put yours between the pawls and fin and use a rope to secure it. Works for me. :)
 

jastacey

Petty Officer 2nd Class
Joined
Jan 25, 2004
Messages
173
Re: Volvo 280 Trim troubleshooting

I've driven all over Texas, pulling a volvo powerd boat for a few years, with the trailer bracket in that position, and never had a problem
 

Modemagic

Seaman
Joined
Jun 12, 2008
Messages
52
Re: Volvo 280 Trim troubleshooting

Problem Solved!

After getting my tilt figured out and working. I also figured out how to put the trailering bracket on to it holds the motor for me. :)

IM000736.JPG



Thanks Guys!
 
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