Diesels Won't Run On Water...Doh'...

Feb 6, 1998
11,709
Canadian Sailcraft 36T Casco Bay, ME
I will cut the story way down..

On Friday a boat I have been re-fitting most of the winter was splashed. Unfortunately before launching the yards fuel system was not yet up and running because ValvTect needs to do a full system inspection before they allow it to be turned on.

The boat had a 100% BRAND NEW fuel system from the fuel tank to the hoses, fittings, fuel sender and gauge, Racor filter, shut off valve and fuel pump. The system was brand spanking new and bone dry, a complete fuel virgin. I had only installed the tank about 4 days prior to launch, talk about a crunch schedule, and just two days before the launch had tapped the screw holes for the new tank sender and vacuumed out any "shavings" from the bottom of the fuel tank. The cover of the boat was still on and we've not had rain in weeks.

So the boat splashes and the yard brings down a 5 gallon Jerry jug of fuel. We pour it into the tank and fire up the motor. The motor ran well for a few minutes then sputtered and died. Figuring I needed some more bleeding I cracked the bleed screw and PURE WATER!!!!!! This was at 4:00 on Friday afternoon.

To keep the long story short the yard guys got a fuel transfer pump, mine was at home, I removed the sender and we pumped the tank dry. But, not before the hose on the transfer pump BLEW APART and covered the engine and cabin in wattery diesel...:doh::doh:

I had just spent MONTHS getting the smell of diesel out of this boat..:cussing::cussing:
Once the tank was dry I zip tied a microfiber rag to a dowel and cleaned any remaining droplets of water from the bottom of the tank bringing it back to its virginous state..

By 5:30 we had cleaned & drained tank, purged the fuel lines & pump and installed new filters. Fresh road diesel was used this time. Engine purrs again..

The yard is at a loss as to where the wattery diesel came from but they were good enough to send someone for fresh road diesel at 4:45 PM on a Friday and get an on-engine filter delivered by 4:55 PM on a Friday... They were great about it and I appreciated how they dealt with this. Stuff/$hit happens...... Doh'!! I suspect I just got the ONE Jerry can that had the bad fuel in it. I will not be going to Vegas any time soon......

Some days you'd be better off to stay in bed.......:doh:

Oh and don't even get me going on the new TackTick instruments ......:cussing:
 
Apr 8, 2010
2,115
Ericson Yachts Olson 34 28400 Portland OR
Nope - They don't run on water

My Condolences!

While our personal boat has not had this happen, I did manage to "try" to run the club dredge once on water... That was a few years ago.
The experience, dumb as it was, might serve as a warning to others, though.

Every morning when we start up for the day, we follow a check list. One of the items is to look at the fuel level on the sight tube. Check.
Next is to inspect the bowl on the big Racor for water for anything else other than diesel.
Well,that bowl is a bit discolored, lighting is dim back beside the John Deere six cylinder... and... the bowl was the same color throughout. i.e. no "line" where a layer of water might possible be.
So I proceed on down the pre-start check list.

Well! Turns out the refueling operation at the end of the day prior must have involved a drum of diesel with a rain leak around the bung. So a quart or two of water was unknowingly transfered.

It started up and before it could even start to warm, it quickly died. Repeated efforts brought no life to the always-reliable Deere.

Finally, too late, I study that bowl really closely with a light on it and find that it's really a bit too clear under the grime on the outside. Heck, it's ALL water.

Tapped it out and got a partial coffee can of water before pale red diesel filled it. Darned little lever on the pump on the engine took me ages to use to bring fuel to the high pressure pump. (That did make me appreciate the electic lift pump on our boat.)

You would think that after operating the dredge for a decade (well, mid winter dredging season only) I would be getting smarter. Right. You'd think.
:redface:

LB
 
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Nov 6, 2006
10,093
Hunter 34 Mandeville Louisiana
Ouch.. I've had a trusted source do that to my BMW motorcycle, but fortunately, not yet to the boat.. NOW.. ya have to spill the beans on the TackTic !! I am considering buying a wind instrument so I don't have to attempt to replace the wire my multitool severed.. uuhhhh.. it cuts wires better than it does fiberglass..
 
Dec 28, 2009
397
Macgregor M25 trailer
Maine, Please spill the beans on Tack Tick, I have the T033 wind in hand ready for me to install and T100 depth, speed in transit. What am I getting into?

Fred
 
Apr 29, 2011
134
Finnsailer 38 Massachusetts
This is one reason I prefer to jug diesel to my boat, which is then poured in through a filter funnel so I can see what it is like and do another filtration before it goes in. Even when at a pump, it is a good idea to run a bit through your funnel filter first to see what the stuff looks like before you put a lot in. If you don't have the filter funnel run a bit into a jug so you can at least take a look at it before you fill your tanks with the stuff. Marinas will claim all sorts of things about their fuel, but that doesn't mean that someone forgot and left the lid off the tank during a rainstorm.
 
Feb 6, 1998
11,709
Canadian Sailcraft 36T Casco Bay, ME
Maine, Please spill the beans on Tack Tick, I have the T033 wind in hand ready for me to install and T100 depth, speed in transit. What am I getting into?

Fred
The problems have still not been worked out but I am working with Raymarine on it. Will give more info when we get it sorted out. At this point all I can say is that I will not be installing TackTick instruments again.... The wind had been working fine and when the owner showed up today to see the boat back in the water for the first time I flipped it on and NOTHING. It could not find the mast head sensor. Re-booted it and it was fine.... The depth has been the big issue, thus far...:doh: