Volvo Penta EVC issues.

[myultrasound]

I wonder if my problem is that seized alternator?

 

[Andyroonot]

I wonder if my problem is that seized alternator?

No, I don’t believe it would be, as this will only become a factor if you are running it
The warning in the screen looks to be a generic “you’ve got a fault” warning message, and the alpha-numeric fault code is the first thing you need I order to try and diagnose this further
When you are there next (tomorrow?) ping me over the serial number and I’ll look it up and see if this is one you can read the faults in the screen

 

[jrudge]

I would say it depends on the mode of failure. To me the fault is electrical. The alternator is part of the electrical system and needs fixing anyway. The volts if the alternator works and the engine is running will be higher and if there is an earth fault causing say volts to be 1 volt below acceptable then the alternator will push it above that.

So if it were me for the £150 it will cost I would fix it and see what happens

 

[myultrasound]

No, I don’t believe it would be, as this will only become a factor if you are running it
The warning in the screen looks to be a generic “you’ve got a fault” warning message, and the alpha-numeric fault code is the first thing you need I order to try and diagnose this further
When you are there next (tomorrow?) ping me over the serial number and I’ll look it up and see if this is one you can read the faults in the screen

Hi.. I'm at the boat. I put new lenses on the gauges so you can see more clearly.
How do I find fault codes on here?
Some pics attached.

The HIU is in a compartment behind the morse control. The compartment was full of water from a failed deck drain. A lot of the cables were immersed in the water probably for years. Some bullet connections to the morse control switches from the HIU were just white powder. I cut and put new connections on. That's when I got the trim up but still no trim down. I'm going to see what volts I'm getting at the HIU.
Thanks.

 

[jrudge]

you need to get the basics right first or you will be chasing your tail.

Dry it out. Fix the alternator, check the wiring and connectors generally ( if this box was wet what else is). Check battery connections are tight, check earth straps are not corroded and if so clean and vaseline.once you have some confidence that the basics are in order start to fault find.

The leg has relays. Check them

A boat that has been left and allowed to get wet all have lots of issues, the only way is to spend some time sorting out the obvious and seeing where it gets you.

Low volts can cause dozens of issues as can poor connections. Sure yo might get lucky but for the safe of a few hours ,some new relays and a new alternator you then have a decent starting position where you have some confidence that on the face of it it should work.

 

[myultrasound]

you need to get the basics right first or you will be chasing your tail.

Dry it out. Fix the alternator, check the wiring and connectors generally ( if this box was wet what else is). Check battery connections are tight, check earth straps are not corroded and if so clean and vaseline.once you have some confidence that the basics are in order start to fault find.

The leg has relays. Check them

A boat that has been left and allowed to get wet all have lots of issues, the only way is to spend some time sorting out the obvious and seeing where it gets you.

Low volts can cause dozens of issues as can poor connections. Sure yo might get lucky but for the safe of a few hours ,some new relays and a new alternator you then have a decent starting position where you have some confidence that on the face of it it should work.

Hi..Thanks for the reply.
I'm getting good volts going into the HIU. Just checked. Both trim solenoids have power because I can jump them with a small wire and the leg goes down. I also swapped over the solenoids and working good. I will check back once I've put the new alternator on.
Regards.
Jon

 

[jrudge]

have you checked the volts when running ?

 

[myultrasound]

have you checked the volts when running ?

Not yet.. I'll wait for the alternator to arrive first.

I just got the trim working up & down via the morse control switches. I disconnected the trim sender cable at the engine. I guess the trim issue is with the sender?

I still have gremlins at the helm. Showing zero vaults and triple beep electrical issue.

I'll keep on digging.

 

[myultrasound]

I'm getting 10.4 volts coming out the back of the rev counter/lcd screen. ? Will the gauges still work at this low voltage? The battery is at 12.3
I've got 12.3 going into the HIU. So somewhere between that unit and the lcd screen there's a problem.

 

[myultrasound]

Hello everyone.
Something is niggling at me. Please don't judge me when you hear what happened at the point when I bought the boat.

It was almost dark, a mechanic came out of the workshop to the boat with a battery. He disconnected the old battery & connected the new battery. I tried several times to crank but only got a single clunk. Then, I noticed a lot of white smoke coming from the engine bay. I shouted for him to disconnect the battery, which he did. He had a look and said it must have been the starter working too hard. Then, another mechanic came out. Had a look, couldn't see anything wrong or anything melted, so we again connected the battery back up. After a while of just a single clunk we removed the alternator belt. Then, the engine fired up. Seized alternator. In my joy, I bought the boat. .. Now I'm thinking, did that first mechanic connect the battery up the wrong way ? The cables aren't very clear. Did he connect them up the wrong way and that white smoke with an acrid smell come from the black box with the ECU in it? I hope not because that'll cost a fortune. Tomorrow will take the box off and open it up and have a sniff..

 

[myultrasound]

Update.. Can't smell anything in the black box but as you can see from the pics. Water has got inside. I've cleaned up those terminals and now I don't have the electrical fault message and can scroll through to see engine hours. I still don't see any volts at the Voltmeter nor power at the trim gauge. Maybe more connectors inside have corroded. I hope the pcb board didn't get wet.. I've been there before, had one completely burn out. £1000 to replace.
Getting dark now. So I'll pack up. . But I think I'm getting somewhere.

 

[julians]

Hello everyone.
Something is niggling at me. Please don't judge me when you hear what happened at the point when I bought the boat.

It was almost dark, a mechanic came out of the workshop to the boat with a battery. He disconnected the old battery & connected the new battery. I tried several times to crank but only got a single clunk. Then, I noticed a lot of white smoke coming from the engine bay. I shouted for him to disconnect the battery, which he did. He had a look and said it must have been the starter working too hard. Then, another mechanic came out. Had a look, couldn't see anything wrong or anything melted, so we again connected the battery back up. After a while of just a single clunk we removed the alternator belt. Then, the engine fired up. Seized alternator. In my joy, I bought the boat. .. Now I'm thinking, did that first mechanic connect the battery up the wrong way ? The cables aren't very clear. Did he connect them up the wrong way and that white smoke with an acrid smell come from the black box with the ECU in it? I hope not because that'll cost a fortune. Tomorrow will take the box off and open it up and have a sniff..

If the smoke was from the ecu, it unlikely that the engine would start at all, I think the fact that the engine runs indicates that the ecu is OK.

But I guess right now it could be anything, as jrudge says, fix the visibly obvious stuff first, like the alternator, the wiring in the flooded compartment, any corroded electrical connections etc and see what happens,before worrying about ecus etc.

 

[myultrasound]

If the smoke was from the ecu, it unlikely that the engine would start at all, I think the fact that the engine runs indicates that the ecu is OK.

But I guess right now it could be anything, as jrudge says, fix the visibly obvious stuff first, like the alternator, the wiring in the flooded compartment, any corroded electrical connections etc and see what happens,before worrying about ecus etc.

Yes I think you're correct..The engine does fire up, so the smoke probably wasn't from the ECU black box. Plus upon opening the black box I can't smell any smoke.

Water has got inside though. Tomorrow I'll make myself comfortable and go through that black box completely.

Thanks..
Jon

 

[Seastoke]

Aren’t the battery terminals , different sizes.

 

[myultrasound]

Hi All.. Everything seems to be working OK now.. Just a lot of water ingress in the ECM black box making for a lot of corrosion inside the connector blocks
I'll update how the sea test goes.

Thanks
Jon