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Does Diesel Or Kerosene Gum Like Gas?

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StuckRusty

12-09-2004 16:51:42

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My JD60 and Farmall 30 both being all-fuel have the small gas tanks. I was thinking if diesel or kerosene were less prone to gum up the carb like old gas does then I would use the small tank for them. When I am ready to shut down for an extended period, I would switch to the small tank and run on kero or diesel before shutting down. Good idea or not?

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StuckRusty

12-10-2004 17:00:54

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Re: Does Diesel Or Kerosene Gum Like Gas? in reply to StuckRusty, 12-09-2004 16:51:42

Thanks for all the response guys. Yeah they are hobby tractors although the JD60 has a 3-point and I do use it as a work tractor occasionally. I run them on gas so the large tank is for gas. After reading all I believe I will have kerosene in the small tank so I can switch over, run a little, and shut down for 3-4 months before drainning and cranking back up on gas. I have learned from you kero doesn't gum like gas so having it run through the carb for an extended shut-down is better. Thanks.

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buickanddeere

12-10-2004 11:10:12

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Re: Does Diesel Or Kerosene Gum Like Gas? in reply to StuckRusty, 12-09-2004 16:51:42

You could drain the car gas out of it and replace it with aviation gasoline. If it evaporates it leaves no gum and varnish like auto/tractor gasoline. Av gas is made that way to reduce the amount of aicraft engine failures.

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ChrisH(IA)

12-10-2004 06:12:16

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Re: Does Diesel Or Kerosene Gum Like Gas? in reply to StuckRusty, 12-09-2004 16:51:42

y brother has a boat that runs on diesel. He told me that slimy organisms grow in the fuel and it requires a precisely measured additive to slow that growth. Another man re-fueled his boat and added too much additive, killing the "algea" which then fouled his fuel filters while at sea causing him much grief. Don't know if kerosene is subject to this same growth.

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Jay (ND)

12-10-2004 14:51:19

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Re: Does Diesel Or Kerosene Gum Like Gas? in reply to ChrisH(IA), 12-10-2004 06:12:16

If there is no water, there should be no algae (unless the diesel came from a previously contaminated tank). Algae forms at the water/diesel line.

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dej(JED)

12-10-2004 05:49:46

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Re: Does Diesel Or Kerosene Gum Like Gas? in reply to StuckRusty, 12-09-2004 16:51:42

Diesel gums quicker than gasoline. There is an oxidative function to deal with in both products. Go to the internet and type in ASTM D 525, this is a standard test to measure product quality in terms of storage and aging characteristics. Be sure you are buying gasoline that has an add pack in it. These add packs do significantly reduce fuel aging.The cheap or low priced gasoline and diesel won't have it. I run a fuels testing lab and we are constantly getting aged gasoline and diesel samples, so I can give you some real world commentary on the subject of fuels and lubes..

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RAB

12-09-2004 23:18:16

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Re: Does Diesel Or Kerosene Gum Like Gas? in reply to StuckRusty, 12-09-2004 16:51:42

Given the choice, for purely preventing corrosion or deposition, I would go for diesel.
This is because my diesel/kero burning fan assisted space heater recommends changing to diesel, before leaving it not running for extended periods, to protect the high pressure pump.
On my dual fuel tractors, I simply drain all fuel from the carburettor, and have had no problems, Also restarting is more sure if I am sure there is only petrol in the carb at restart!
Regards, RAB

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7720future

12-09-2004 18:33:58

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Re: Does Diesel Or Kerosene Gum Like Gas? in reply to StuckRusty, 12-09-2004 16:51:42

What kind of gas are you using? I could be wrong but I think that gas with ethonal will not gum up or am I just way off base. I think that ethanol is why you dont need a product like HEET to add to your gas tank.

Please correct me if I am wrong. Would like to know for sure.

Justin

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Bus Driver

12-10-2004 06:17:03

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Re: Does Diesel Or Kerosene Gum Like Gas? in reply to 7720future, 12-09-2004 18:33:58

HEET may be methanol (wood alcohol). It will corrode certain metals. I would not use it on fuel injected vehicles at all. For gas line antifreeze, a pure isopropyl is by far the better product- costs about twice as much as methanol. Ethanol (grain alcohol) is not ususally harmful to metals.

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JK-NY

12-09-2004 18:13:14

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Re: Does Diesel Or Kerosene Gum Like Gas? in reply to StuckRusty, 12-09-2004 16:51:42

Originally the small tank was for gas to start on then switch to petroleum distillate/kerosene and in cold weather switch back to gas before shut down so it would start next time. I have found that the best thing to do to prevent gas from gumming things up from setting is to start an engine occaisonally and let it run a little ,also I have never had gas go bad in cold weather , only warm . If you shut these engines down on kerosene you would probably have to drain the carb and then open the gas valve to start them on gas after your extended idle period.I dont believe kerosene causes varnish/gumming up but not sure. HTH JK

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Bus Driver

12-09-2004 17:49:55

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Re: Does Diesel Or Kerosene Gum Like Gas? in reply to StuckRusty, 12-09-2004 16:51:42

A bit beside the original question, but I would never try to use Diesel fuel in an All-Fuel tractor, not even as part of a mixture. Kerosene is a good choice. We ran the JD G on kerosene after starting on gasoline. My uncle ran his All-Fuel Allis C on 50/50 kerosene/gas for starting and working year round.

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Mike M

12-09-2004 17:28:46

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Re: Does Diesel Or Kerosene Gum Like Gas? in reply to StuckRusty, 12-09-2004 16:51:42

I drain out the gas and put some kerosene in both my tanks.For extended periods I have found that the all fuel switching valve will still let some gas mix with the other tank when off causing it to gum.I have also tried completly draining both but that still leaves a trace of gas which has gummed up and stuck my needle valves open.

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Redmud

12-09-2004 17:13:36

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Re: Does Diesel Or Kerosene Gum Like Gas? in reply to StuckRusty, 12-09-2004 16:51:42

Not a good idea. restarting on kero or diesel is kinda hard unless you use the chain start. sometimes that don't work. kill it on gas and drain the carb.
Redmud

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12-09-2004 17:10:51

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Re: Does Diesel Or Kerosene Gum Like Gas? in reply to StuckRusty, 12-09-2004 16:51:42

If by extended shutdown you mean something like parking it for the winter or 4-6 months- good enough idea, simpler than draining tank on warm engine, then putting in gallon of diesel or JP4 and restarting engine until smokes and stops. Could try Marvel Mystery oil mix. You would have to put in fresh gas anyway after long storage, maybe clean sparkplugs. RN

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Kevin (FL)

12-09-2004 16:57:26

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Re: Does Diesel Or Kerosene Gum Like Gas? in reply to StuckRusty, 12-09-2004 16:51:42

I haven't yet run a dual fuel tractor--we have an AC B model that has the small tank, but it's waiting for restoration. But I thought the small tank was for gas--for cold starting and then you switched over to diesel or kero after warm-up? Maybe I don't understand your question, but it seems to me that when you shut down, you'd already be running diesel or kero anyway???

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Bill R

12-09-2004 17:42:25

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Re: Does Diesel Or Kerosene Gum Like Gas? in reply to Kevin (FL), 12-09-2004 16:57:26

Kevin, I assume that the tractors he means are hobby or show or light usage tractors and he probably runs gas in them all the time and he means to keep a little diesel in the small tank to let it kill on when he plans to leave set for long time.

Bill R

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