Remove my 260 sundancers diesel gen. any tips?

[hpcrank]

Greetings

I have a 1981 Sea Ray 260 that has a diesel Onan gen. set. The eng./gen. needs to be removed. Any info. or tips?

Thanks
hpcrank

 

[estoltz]

I'm confused. You have a 454 engine which is gas but you have a diesel generator?

 

[HUMPH]

Pain medication, lots of it! Same question though, you have a diesel genny? Where is the separate tank stashed?

 

[Mike Blake]

I'm confused. You have a 454 engine which is gas but you have a diesel generator?

I was going to ask the same thing!!! Maybe I should have a drink. MMMM Crown Royal

 

[hpcrank]

estoltz

Yes the boat engine is gas and the generator's engine is diesel. I have never heard of a factory boat generator set that was gas fueled.

hpcrank

 

[JeffM]

I have never heard of a factory boat generator set that was gas fueled.
hpcrank

Mine is; my parents' Carver 350 Mariner was, too.

 

[hpcrank]

Ken

I don't know. I bought the boat a day before the first snow and have not been able to work on it since. The previous owner said it had water in the oil so did not start it, he said it turns over.

hpcrank

 

[spikedaddy99]

Most gas boats have gas generators. Otherwise you would have a separate fuel tank.

 

[rcknecht]

To answer your question... I used a jet ski lift to pull mine... You can do it with two or three strong people... I have only heard of the diesel genny in a gas boat, on a boston 30' whaler with outboard engines... It had two separate fuel tanks. It is very rare, and I highly doubt you have a diesel genny... It only matters if you plan on replacing it...

 

[Bucit]

The previous owner said it had water in the oil so did not start it, he said it turns over.

But he also said this so I highly doubt a diesel genny. Another sign is a 26 footer. That would be extra weight in a smaller boat.

 

[hpcrank]

Wow

The person I bought it from said it was diesel, I have not verified that as I have not worked on anything yet. I would be afraid of a gas gen. on
a boat.

Thanks for the education

hpcrank

 

[SCORPIO]

Why? Almost every gas boat I've ever seen, if gen equipped, has a gas gen set.

 

[mperlst216]

Can you show us a photo?

 

[estoltz]

Wow

The person I bought it from said it was diesel, I have not verified that as I have not worked on anything yet. I would be afraid of a gas gen. on
a boat.

Thanks for the education

hpcrank

Yeah my 05 260 was a gasser with a gas genset. my 06 340 as well.

 

[CharlieN]

On my 268, the generator sits in the left rear corner. I have never had it out but the question is will it fit past the exhaust manifold. If not, then the exhaust manifold has to be removed-not that hard. There are 1/4 lag screws holding it down that are fun to get out, then the gas line and the water cooling hose. I can't see the connections for the 110v, so I am not sure what that connection looks like. I agree, a couple guys to get it on the deck, then over the transom. Pictures would help.
Charlie N

 

[KC_Sundancer]

I have a gas Honda. :grin: (sorry could not resist)


Seriously:
You could possibly build a simple wood a-frame resting on the outer edges of the inner deck to help lifting with a chain-fall or come-along.
Replace the engine cover then set it down on a sheet of plywood, disconnect and go from there man handling it out.

 

[JVM225]

If you can't determine if it's gas or diesel by looking at it, then the next best thing is to check what feeds it.
If it's diesel you would have to have a separate fuel tank and deck fill, both of which would be marked for diesel.
It's highly unlikely that Sea Ray would have installed a diesel generator on a gas powered boat. If that is in fact the set up that you have, it's much more likely that a previous owner rigged it that way.
You can try contacting Sea Ray customer service, give them the HIN from the boat, and they may be able to tell you what the boat was originally equipped with.
They were able to do it for me a few years ago, but I don't know if they still do it, or if they have the info for every boat.

 

[fwebster]

Either way, gas or diesel, I would diagnose it where it sits before pulling it out.

With small gasoline generators with 3 cylinders or less, it is very common for a fouled plus or similar ignition problem to cause the generator to slow start. When you grind away on one that don't fire, you still pump water and it is way too easy to for seawater to run into the engine through the exhaust valves. It would eventually show up in the oil.

On a diesel, a clogged filter will stop fuel flow and cause the system to suck air into it. Air is compressible so the injectors won't fire as long as there is air in the fuel lines ahead of the injectors. The same thing happens.....grind away on the starter and you eventually pump seawater into the cylinders via the exhaust valves where it eventually shows up in the oil.

Diesels are very forgiving; gas engines not so much. Hopefully, the previous owner didn't bend a connecting rod after the engine filled with sea water. My bet with a diesel is that you change the oil, change the fuel filters, probably pump out all the old fuel and refill it with fresh diesel, purge the air and it will fire right up. if it is gas, then you need to check the compression after you change the oil......and keep your fingers crossed that the valves seal and a rod isn't bent.