440 IC backfiring

General help and support for your Lindeman through 2010 John Deere crawler
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JD440ICD2006
350 crawler
350 crawler
Posts: 1113
Joined: Tue Aug 22, 2006 3:57 pm
Location: South Carolina

Post by JD440ICD2006 » Sun Nov 14, 2010 2:13 pm

Two fold reason for making the change is of coarse to apease the evironmental scientist, but also to cut cost. Unfortunately, the oil companies eat all of the difference plus some.
There is no way that Hurricane Katrina could have created a "permanent" higher price for gasoline and diesel. But they used that as their excuse to run the prices up and they have never gotten back near pre Katrina.
They are making real hay on diesel as it cost less to refine, even though that add a few ingredients to it.
Five (5) years ago, I thought I was getting robbed if I paid more than $1.50/ gallon for road diesel. What does it cost us today?
1959 JD 440ICD w/64 Power Angle Tilt Blade
1959 JD 440ICD w/63 Manual Angle Blade
1959 JD 440IC w/602 Manual Angle Blade
1959 JD 730D W SE (many options)
1950 JD M S w/M-20 Mower
1952 JD M W
1955 FORD 640 (burns the most fuel)

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Stan Disbrow
350 crawler
350 crawler
Posts: 2983
Joined: Fri Jul 15, 2005 3:13 pm
Location: Raleigh, NC

Post by Stan Disbrow » Tue Nov 16, 2010 2:51 pm

Hi,

The racing fuel has no lead. The av gas has lead, just not as much as the old premium road gas had.

I doubt that the EPA will win on the leaded avgas issue. One small plane down on a house after they make it go away, and it will be back. I doubt they will win in the first place. They haven't the clout of the FAA, anyway. It's due to the FAA that the lead is still in the avgas up until now.

Not that it matters. The airport is closer to me than the racetrack, and the current cost for 100LL is $4.75 and 100NL is $7.60, so guess which I'm buying by choice? If the 100LL at the airport becomes NL, then I'll buy that.

I mix it 50/50 with regular unleaded pump gas. This is more to prevent carb icing on the updraft carbs than anything else. I run it pure in all my 2-strokes and have had zero issues from the things from the 1950's to the ones bought within the last couple years.

The guys at the airport use 100LL straight in every gas tool and thing they have. No issues. I don't worry about it.

And, yes, the higher the octane the cooler it'll burn. It vapors much more freely than pump gas does, too, so better starting with it. It will turn the carb into a sno-cone in the summer, though. These old tractors don't have enough heat to keep it from freezing up from the look of it. ;)

Oh, and I've been using 100NL and 100LL for decades. Which I use depends on where I was at last with the gas cans. I used to use more 100NL than LL because I was racing and it was right there. Now, I use LL more than NL because I gave up racing.

It does fix a lot of problems: It cleans things nicely, it doesn't varnish up, it stays good in the 2-cycles over the winter without draining or running dry, and the old stuff starts easier. I like it. :)

Later!

Stan
There's No Such Thing As A Cheap Crawler!

Useta Have: '58 JD 420c 5-roller w/62 inside blade
Useta Have: '78 JD350C w/6310 outside blade
Useta Have: '68 JD350, '51 Terratrac GT-25
Have: 1950 M, 2005 x495, 2008 5103 (5045D), 2025 3025E

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CELSESSER
1010 crawler
1010 crawler
Posts: 260
Joined: Sat Sep 08, 2007 3:05 pm
Location: Northern Michigan

Post by CELSESSER » Tue Nov 16, 2010 4:17 pm

Stan,
Thanks for the imput. I know it stores well, When my dad was on a fishing trip up on Hudson Bay the old Bush pilot would land at different islands and when they were fishing he would go into the island and return with weathered plastic Jerry cans af avgas. he'd spill a little out and if it was clear he dumped it into one of the tanks of the Beaver. He said he probably wouldnt get up into that territory again so he was picking up his old emergency fuel catches. Dad asked him how long they had been there and Nick replied "8 or 9 years, if its milky it has water in it and is no good but if it is clear it"s good to go". I do think that he was putting in the central tank that he used to cruise on ( if he had to and all he could get on the bay was 89 octain he would put that in the center tank also and only use that at cruise). He kept good fuel in the tank that he used for getting her off the water and up to altitude. I still remember the doghnut he gave me one morning after taking off, tasted just like gasoline.

Chuck
1960 440ICD #461094 w/ #63 manual blade Converted to a gas engine two owners ago.

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