0f Diesel in a gas engined Hat!

[Trojan]

If its in the oil you must get it out. Diesel fuel does not lube anything. It will remove any crap in the motor and around the rings. Don't be surprised if you smoke for a while even after the fuel is gone. Depending how long and how much was in the oil. You may need to change the oil twice. It will or should go away. It could be like breaking in a new engine. Hay at least it wasn't like I did. I grabbed the wrong can and put straight gas in my 2 stroke outboard. You could not even get the rods off the crank. Ops.



BILL

 

[Boatsb]

Has anyone tried converting spark plugs to Glow plugs? This could solve the problem

 

[Avenger]

Met a guy on a ski trip in France who had just put gasoline in his diesel Rabbit. Bye Bye engine.

I'm going to go out on a limb here and say that you'd have to be a mechnical imbecile to ruin an engine that way. We see people do this all the time and the engines run like crap. They smoke, rattle like a can of ball bearings and make no power. You'd have to turn up the radio and just keep driving to do that kind of damage. Usually it's drain, refill with diesel and you're good. Either somebody got ripped off or he deserved what he got.

BTW, oil fouled plugs usually clean right up with the application of a Bernz-O-Matic.

 

[q240z]

Just so you all know there is more to converting to Diesel than just filling the tanks.

Right. You should also be sure to remove the spark plugs, run each piston to TDC, and fill in all that space between the piston crown and head with J&B Weld. I forget though...do you need to use bronze plugs to fill the spark plug holes or will stainless suffice?

 

[67hat34c]

so the jb weld will improve comression. would use ss plugs as all the heat generated from the jb weld and diesel may melt bronz.

on the serious side, would the diesel fuel that got into his tank actualy clean the tank up? might be something good come out of this.


Jb weld in the engine reminds me of something i read about in the early 80's
Ford was experimenting with a composit engine, plastic block and heads. ceramic pistons, steel springs and ceramic valves i believe. the pinto engine they made produced 315 hp natual with 4 webber carbs , engine weighed 75lbs. wonder what ever happened to this technology. Wonder if some composits could be used to make marine engines lighter. intake manifolds, exhaust manifolds, risers and elbows etc. Thinking more gas engines than diesel due to extreme pressure and heat with diesel doubt it would work.

also generator engines, gas and diesel could benefit, think of the weight savings and complete lack of corrosion.

Wonder what ever happened with this?

 

[Boatsb]

I don' think diesel will clean the tank but he may get arrested for carying it in a gasoline rated tank.

Just dont add any alcohol to the fuel now or you will have a real mess. gas line antifreeze, Ethanol and such will just add to the problems until the tanks are clear of the diesel.

 

[Trojan]

I think there was a problem with the thermal expansion of the piston and related parts on the pinto engine. Thats been a long time ago.

BILL

 

[MikeP]

I seem to recall that DD used some ceramic replacements parts on the engines in the early 80's or thereabouts. There were problems and they quit. As I recall they were piston related but I can't remember.

It was kind of like Steinway's 1965 idea that teflon bushings in piano actions would be far superior to felt bushings that had been used in pianos for the previous 150 years. In the late 90's they finally admitted it didn't work worth a darn and they went back to felt. DD reacted much quicker to the fact that the new stuff didn't work as well as the old stuff.

 

[Boss Lady]

Just for the record, the new ford diesels have some ceramic parts, I know the company they teamed with to make these (Ceradyne) their head engineer now works for me. The technology is there to do some amazing things, but you don't want to pay the bill. It makes a Ferrari look cheap, but it can be done. LOL Anyway, industry works hard to make improvements and then make them economical. Steel is still around for a reason. Mainly because it works and is economical.

 

[SKYCHENEY]

How about this. We used to buy replacement wear parts for our rock crushers that were made of a manganese alloy, tough stuff. But now I spend about double for the same parts with some ceramic content too. They last four times as long and are not brittle like you would think they would be. It's amazing to see our big primary impactor eat up these big chucks of limestone. I think you'll see even more ceramic stuff as the technology improves.

 

[Maynard Rupp]

Small amounts of diesel will not hurt the engines. Probably even help them some as we used to fog engines all the time up north for storage. If you pull the fuel from the lines you will be getting clean fuel to the carbs. From that point I would get them running and just run the fuel from the carbs at high idle for a few minutes till its clean.

Did you pull the oil yet? I am curiuous as to how much is in each crankcase. Did it take in another 3-4 quarts? That was the part in your post that made me wonder. Thats a lot of extra oil if it is what you posted first.

For the gas dock not being responsible I would argue the fact that even if you pump it yourself. The attendant was the one who gave you the wrong pump. If you asked for Gas and he handed you the diesel pump it was his mistake. Half the time when fueling I cant see the pump because its 40 feet down the dock and 2 boats away.

es that is alot of oil. I drained about 4 gallons from each engine. Full is 7 qts. I am not happy about that at all. The pump was at least 100' away from our boat.

 

[Bob Bradley]

I'm going to go out on a limb here and say that you'd have to be a mechnical imbecile to ruin an engine that way. We see people do this all the time and the engines run like crap. They smoke, rattle like a can of ball bearings and make no power. You'd have to turn up the radio and just keep driving to do that kind of damage. Usually it's drain, refill with diesel and you're good. Either somebody got ripped off or he deserved what he got.

BTW, oil fouled plugs usually clean right up with the application of a Bernz-O-Matic.

I recall the guy was a bit of an a-hole, and for the most part we found the situation a bit amusing. But then we had a bus to take us back from the mountain to Chamonix. Apparently, he didn't speak or read French and wasn't aware of what he was pumping into his rental.

 

[Boss Lady]

We manufacture ceramic composite body armor. If you were to drop the ceramic it will break just like a dinner plate. But when we are finished with it, the same ceramic defeats an Armor Piercing bullet. Isn't technology wonderful?

 

[Boatsb]

es that is alot of oil. I drained about 4 gallons from each engine. Full is 7 qts. I am not happy about that at all. The pump was at least 100' away from our boat.

Ouch thats about 4 qts per engine. I would be talking to the marina as I cant see that much diesel getting past the rings without causing some problems. If you asked for gas and he brought you the wrong pump it should be their problem. Let them take responsability for their actions and those of their employees. If any idiot can sue McDonalds for hot coffee thais seems a better arguement.

 

[ADaily3224]

Maynard,

You may want to check your fuel pumps. I'm assuming they are original equipment, are they as old as the engines? I wonder if the gas-diesel mixture could have perforated the diaphragm allowing fuel to leak into the engine? We see engines with too much oil this time of year coming into our shop, it's usually because they were flooded trying to start with a weak battery. The fuel pumps are usually good for 800 hours under normal conditions. Just a thought.

Tony D

 

[Maynard Rupp]

Maynard,

You may want to check your fuel pumps. I'm assuming they are original equipment, are they as old as the engines? I wonder if the gas-diesel mixture could have perforated the diaphragm allowing fuel to leak into the engine? We see engines with too much oil this time of year coming into our shop, it's usually because they were flooded trying to start with a weak battery. The fuel pumps are usually good for 800 hours under normal conditions. Just a thought.


I am wondering about that also, Tony. These engines have tubes from the fuel pumps to the carbs. If the diaphram ruptures, they are supposed to dump the fuel into the carb. not the cranckcase. One of the pumps is newer, one original. I am more concerned about why the stb. engine would backfire to the carb. and drop rpm. The port kept running fine. The stb. engine does show one cyl. 10 lbs. below the others. All 16 cyls. were 145 to 150 except that one which made it to 140.

 

[ADaily3224]

Maynard,
I replaced fuel pumps in a Bertram 33 I had when I started to smell fumes, The best marine technician in our area said to get rid of them at 800 hours as that's their normal life expectancy in the marine environment. I was thinking that in your case you may have put them under a higher load than usual with the thicker viscosity of diesel compared to gasoline and that may have been the final straw. I could be completely wrong but at this stage why not change them just as a precautionary measure. My fume detector went off once in a while before I replaced mine. Nothing sent chills up my back more than that high pitched scream when the alarm went off.
Tony D

 

[Maynard Rupp]

Maynard,
I replaced fuel pumps in a Bertram 33 I had when I started to smell fumes, The best marine technician in our area said to get rid of them at 800 hours as that's their normal life expectancy in the marine environment. I was thinking that in your case you may have put them under a higher load than usual with the thicker viscosity of diesel compared to gasoline and that may have been the final straw. I could be completely wrong but at this stage why not change them just as a precautionary measure. My fume detector went off once in a while before I replaced mine. Nothing sent chills up my back more than that high pitched scream when the alarm went off.
Tony D

I think I will change them, at least the older one. It will have to wait until I get back to Miami next month. That is as long as they are working.