On Sat, 12 Apr 2008 16:50:08 -0500, RoyJ
wrote:

After reading the other comments I think you have multiple issues going
on to switch from diesel to gasoline:
-the gasoline will have a MUCH lower viscosity, you are going to get way
different (more)amounts of fuel through the injector. I'd think that is
what causes the white smoke a lousy performance, it's too rich.
-at the same time, gasoline has lower fuel value per gallon or
milliliter, same volume of fuel will cause the engine to go lean, never
a good thing

Except a deisel is ALWAYS lean,(except possibly at full power) and
direct injection gives a stratified charge, which even on gasoline,
CAN run very lean without overheating.
-gasoline has a much higher flame front speed, ie it will detonate,
really does bad things to the top of the piston.
-gasoline has no lubricating qualities, will tear up a standard injector
pump in short order.

Very interesting discussion. I've been asked to be the project manager
for an alternate fuels project based around a 100kw Cat diesel
generator. Fire up on a new fuel, check for short term issues, go to a
50% load then 100% load for 8 to 24 hours, then tear down and look for
damage. Looks like I would be spending more time than planned dealing
with the injector pump. Hmmmmmmmmmmmmm.

Ivan Vegvary wrote:
Sorry about the OT, but, I do contribute once in a while and this is such a
knowledgeable group!

Many decades ago (1950's) when people talked about diesel engines (lot of
this talk was from 'old country' poor Europeans), they would always tout the
fact that they (the engines) would run on anything. The list, if I remember
correctly included diesel, gas, lighter fluid, heating oil, liquefied lard,
charcoal lighter, veggie oil etc., etc., etc.

If any of the above is true, why don't people, today, put gasoline into
their diesel engines, considering the higher cost of diesel fuel?

Just want to know what would happened if you did use gasoline.
BTW, my only diesel is my small Kubota tractor.

Thanks for replies.

Ivan Vegvary



** Posted from http://www.teranews.com **