275 Tilt motor

[bayliner19]

:'( Well, they say trouble always comes in 3's and I am on number 2. Doing the test of the tilt motor on my AQ131 on a 275 stern-drive I applied 12v power directly to the disconnected motor leads and received no reaction on either lead. According to the Clymer manual, that means the motor is bad and is not a real surprise considering that the last time it worked at all it barely moved the worm gear. My question is, the manual refers to a safety limit switch that cuts out the motor at the top end before it is in danger of burning out the motor. My unit does not seem to have one but it states that it can be purchased and installed as an accessory.
Does anyone know where I might find one?


When I was young the fish were so big we had to fish from shore with a tow truck line.

 

[Don S]

Re: 275 Tilt motor

Before you throw away a motor that may be good, Answer these questions.
1. How many wires are attached to your tilt motor. 2,3,4?
2. How Exactly did you go about testing the motor. A statement like "As described in my Clymers manual" is not an anwer.

 

[bayliner19]

Re: 275 Tilt motor

Hey Don, tks for the reply. I have a two wire motor and I tested it by applying 12v directly to each wire after I disconnected both wires from the relays. If I am correct, the motor should have spun one way when connected to one of the wires and spun the opposite way when connected to the other wire. I got nothing on either wire.


When I was young the fish were so big we had to fish from shore with a tow truck line.

 

[Don S]

Re: 275 Tilt motor

You have to use both wires to test it that way. One is hot one is ground, To go the opposite direction you put power to the previous ground wire and make the previous hot wire the new ground.
If you was trying to use the case as a ground, it won't work.

And do the test at the connector for the motor, not at the relays.

 

[bayliner19]

Re: 275 Tilt motor

I already had the motor out (easy enough, just two little bolts) and you just saved me a new motor. I tested it as you suggested and it works fine both ways. I also installed a new switch on the dash (mom-off-mom) because the old one was very corroded and did not seem to feel right. But, now what?


When I was young the fish were so big we had to fish from shore with a tow truck line.

 

[Don S]

Re: 275 Tilt motor

This is where it gets to be real fun to figure out what is bad.
But you really need to understand how the relays in that box work. It's not just one for up and one for down, they are both used both directions. One goes from hot to ground and the other goes from ground to hot. When you go the other way they reverse. You also need to know the wiring numbers on the relays and the connectors the relays go in.
It could be a bad relay, but like I said, it takes both, so itis usually best to swap out both to see if that is the problem. I carry 2 for testing, It's much faster to test by replacing. But careful study of the wiring diagram and testing with a meter will find the problem.

 

[Don S]

Re: 275 Tilt motor

Here is the wiring diagram from the Volvo service manual.

 

[bayliner19]

Re: 275 Tilt motor

Great info, rather than try to find out which one may be bad, I think I will just replace both and go from there. Is it the part # 18-5704 that I need for replacements?


When I was young the fish were so big we had to fish from shore with a tow truck line.

 

[Don S]

Re: 275 Tilt motor

I don't have a clue what Sierra crosses to, but the Volvo part number for the relay is 853518,

 

[bayliner19]

Re: 275 Tilt motor

What would you suggest for a source for this part? I cannot seem to find anything on the part number or a cross reference.


When I was young the fish were so big we had to fish from shore with a tow truck line.

 

[Don S]

Re: 275 Tilt motor

I work for a Volvo dealer, so we don't use aftermarket items.
Try this other Volvo number and see if it works for you.
876039.

 

[bayliner19]

Re: 275 Tilt motor

I found this one, do the spec's look right?

5 Terminal, Single pull, Double Throw, 12 Volt

Contact/Resistive/Conductive
Open 40Amps- Resistive, 30Amps-Conductive
Closed 20Amps- Resistive, 15Amps -Conductive

Applies for Johnson/Evinrude/OMC / Volvo engines only

Replaces OEM part #
• OMC 586224
• OMC 582472
• OMC 584416
• VOLVO 876039-9
For AQ 175, 200, 225 D, 260, 290A




When I was young the fish were so big we had to fish from shore with a tow truck line.

 

[bayliner19]

Re: 275 Tilt motor

:/ Hey Don, when I check part numbers, I find that the one you gave me (previous post) is different from the one I find in cross references. The one listed for 270 & 280 drives is 876037, this has slightly different specs from the one I listed in the previous post. Before I order these I need to make sure which is correct. Can you help?
Tks
Dale

[colour=blue] A long time ago, when I was very young, the fish were so big we had to fish from shore with a tow truck line.[/colour]

 

[Don S]

Re: 275 Tilt motor

I'm using the Volvo Penta electronics parts catalog (I work at a VP dealership)
I am looking at the AQ131 engine and the 275 mechanical lift, not 270 or 280.
It gives 2 relay numbers, I don't know why, and without looking at the actual relays I couldn't tell you what if anything is different.
The 2 numbers are 853518 and 876039.
My suggestion would be to take your relays out and take them to your local VP dealer and get the right ones

 

[bayliner19]

Re: 275 Tilt motor

Thanks for the reply Don, I will try to let you know how this all comes out.


A long time ago, when I was very young, the fish were so big we had to fish from shore with a tow truck line.

 

[bayliner19]

Re: 275 Tilt motor

Hey Don, needless to say, it comes as no surprise that you were right on the correct part number. Tks for all your help, you saved me dollars and aggravation. 8)


A long time ago, when I was very young, the fish were so big we had to fish from shore with a tow truck line.

 

[bayliner19]

Re: 275 Tilt motor

:'( Well Don I guess I still need some help. After replacing both relays there is no change. So far, I have checked the motor to make sure it turns correctly, replaced both relays, replaced the dash toggle switch and fully charged the battery. It still with not lift the leg. In order to give you as much information as possible, here is what I see when trying to activate the lift system;

1. It seems to be trying to work because I can see the drag on the ammeter on the dash.

2. When I hit the up switch the little red light flickers
(but does not stay on). This is the light that is supposed to come on when the leg is not in the down and locked position.

I am now at a loss to figure this out. Hope you can help.


A long time ago, when I was very young, the fish were so big we had to fish from shore with a tow truck line.

 

[Don S]

Re: 275 Tilt motor

Since the motor is trying to move the drive, maybe the drive is stuck down.
A faulty lockdown mechanism or the linkage rod on the drive H bracket to the lockdown mechanis may not be allowing it to release.
Putting the shifter into forward may release the lockdown.
Can you lift the drive by hand if you manually release the lockdown? I have seen the bushings on the pivot pins lock the drive down from corrosion.

 

[bayliner19]

Re: 275 Tilt motor

Putting the shifter into forward does not seem to release the lock down mechanism. I can release the catch manually and lift the drive by hand, there does not seem to be any external evidence of corrosion. How do I go about checking the lock down system?


A long time ago, when I was very young, the fish were so big we had to fish from shore with a tow truck line.

 

[Don S]

Re: 275 Tilt motor

You are going to have to look at it and find out what is binding, broken, missing, way out of adjustment or whatever in the lockdown mechanism. You have 2 seperate pieces of linkage that won't release the lockdown.

Below is from the OEM service manual. You REALLY need to get one if you are planning on working on it.
The Volvo PN is 7731624 and costs about 20 bucks.