Oil & Fuel Diesel vs Gas Engines

putty340 · Feb 20, 2001

Glueguy , that is true the diesel does have a very long stroke which is the bad and good,there is more piston speed and sideload, but all the other parts have to be spinning at 3000 RPM - lots of wear!

GlueGuy · Feb 21, 2001

Putty,

That's only semi-valid. Biggest wear item in internal combustion engines is the piston/piston ring to cylinder walls. Mainly because they have to "scrape" the sides (well not exactly, but close). The bearings are another story. There should be almost no contact between the bearing surfaces if you have proper oil pressure. The size of the bearings can have a big impact on longevity though. And diesel engines (typically) have much larger diameter bearings because of the high compression ratios. 60psi (typical again) on a large surface is way better than 60 psi on a smaller surface.

The GlueGuy

Charliebrn · Feb 21, 2001

Ask one simple little question... [GRIN]

I love this board!!!

Anonymous Poster · Feb 21, 2001

Diesels do develop their torque earlier, an advantage to driving but almost zilch when operating a tractor.

One of the main reasons you want the diesel is because of it's "torque rise" or "torque reserve".

LarryT · Feb 22, 2001

Thanks John, I'll definitely take a look at the polaris. I'm pretty worried about the green Gator clashing with my orange tractor anyway!

Larry...

Bird · Feb 22, 2001

LarryT, have you looked at the Kawasaki Mule? My brother has one and it's sure been a fine little workhorse. And a rancher neighbor, who has 5 tractors, bought one, too, after I took him out fence repairing through the woods with my brother's Mule. Of course, they've had theirs a few years and they're gas models, but my brother has driven one of the new diesels and fell in love with it; just can't justify the cost to trade up to it.

Bird

LarryT · Feb 22, 2001

Bird, I looked at the Mule briefly, I'll look again. These things aren't cheap so I can justify spending a few extra bucks for a few extra years use. Besides, the red doesn't clash with orange as badly as the green does!

Larry...

Anonymous Poster · Feb 22, 2001

"60psi (typical again) on a large surface is way better than 60 psi on a smaller surface"

Say what?

Don't both have 60 pounds per square inch?

GlueGuy · Feb 22, 2001

I was refering to the 60 PSI of oil pressure used to support the crank bosses inside the main bearings. Assuming that two engines have the same oil pressure, the one with the larger bearings should see less wear.

Sorry about not being clear.

The GlueGuy

richfromPA · Feb 22, 2001

toys and tools??, hmmm that sounds like my ole ladys language. when i got my first welder she said "whatta ya need that toy for" well, when that got me into welding for free trees and i started haulin them home for plantin, she changed her tune. then when i bought my miller bobcat welder after plantin 8000.00 worth of them free trees, and the welder was only 3000.00 she really said "whatta ya need THAT for", well then, when i started to bring home hundreds of dollars of side money she shut up. same stuff when i bought my new ztr grasshopper 4 yrs ago. but when i made 2500.00 cash one spring(2-1/2 months) she had her darn paws out. then came the cub loboy and she didnt say much. now that the cub is gone and the grasshopper is gettin traded in for a new diesel b7500 she has started once again only to be put back into place when I said " remember how much i made with the grasshopper 2 yrs ago". anyway that is my tool and toy story and doenst have crap to do with diesel vs gas except IM GETTIN MY DIESEL SOON. haha, ya guys think it will have enuff torque or horsepower to drag her by the heels up hill with the loader full of empty beer cans? ... sorry for the stupid post and showing my room temp IQ but i couldnt help it.

really i love her and she has been very helpful and i love the cat and her potpourri

..wheww she was lookin over my shoulder
richfromPA