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Owen_brassfield 
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Joined: 13 Apr 2017
Location: West Sussex, uk
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 Topic: Allis chalmers b tvo
Posted: 13 Apr 2017 at 10:58am |
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What is the best mixing ratio for tvo for an allis b
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Dean(IA)
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Joined: 12 Sep 2009
Location: NE Iowa
Points: 430
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Posted: 13 Apr 2017 at 11:11am |
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I would think that diesel fuel would be reasonably close to TVO. Kerosene might
also be pretty close. Diesel fuel is more "oily" than kerosene.
For us on this side of the pond, it means Tractor Vaporizing Oil.
Back in the early tractor days we had a fuel that we called power fuel
or distillate. It was probably the same as tvo.
I hope that i haven't just confused the issue some more.
Dean
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AJ
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Joined: 31 Oct 2010
Location: mo
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Posted: 13 Apr 2017 at 11:39am |
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I've heard it called "tractor fuel" as well.
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Can't fix stupid
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Owen_brassfield
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Location: West Sussex, uk
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Posted: 13 Apr 2017 at 11:49am |
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Their all just different names for tvo however I want know how to mix your own tvo
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Dean(IA)
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Location: NE Iowa
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Posted: 13 Apr 2017 at 12:07pm |
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This is taken from Vintage Tractor Engineer:
1 part petrol (gasoline) and 1 part heating oil (furnace oil) results in 59 octane
2 parts petrol and 1 part heating oil results in 72 octane.
He recommends the lower octane for topping and light work
and the higher octane for heavy field work.
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everett048
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Joined: 12 Sep 2009
Location: uk
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Posted: 13 Apr 2017 at 2:48pm |
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You dont need to mix T V O just use central heating oil in it thats all we use in our 20 Allis tractors as long as you keep it hot you will be fine
Edited by everett048 - 13 Apr 2017 at 2:49pm
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CrestonM
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Joined: 08 Sep 2014
Location: Oklahoma
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Posted: 13 Apr 2017 at 4:50pm |
I must be missing something....what are all these different fuels? I'm used to just starting and running on gasoline, so all this is new to me. I've heard of "distillate" and "tractor fuel", but how is it different from gasoline? Thanks
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steve(ill)
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Joined: 11 Sep 2009
Location: illinois
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Posted: 13 Apr 2017 at 5:05pm |
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Creston - its a 1920- 1940 era thing... gasoline was not readily available and $$$. They were looking for CHEAP.. That's why most of the motors from that era have 5 :1 or 6:1 type compression ratios.
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Like them all, but love the "B"s.
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Gerald J.
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Location: Hamilton Co, IA
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Posted: 13 Apr 2017 at 5:11pm |
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Distillate was a left over component of petroleum refining in the 1930s. A little lower octane than gasoline with poorer vaporization. Being a left over it was cheaper than gasoline. Takes heat to get it to vaporize hence the heated intake manifolds and the dual fuel systems on tractors made to use it, always had to be started and warmed up on gasoline before switching to distillate. It may have had more btus per gallon to give a bit more engine power despite the lower compression ratio required for the lower octane. Most likely the main benefit was being cheaper than gasoline.
Somewhere I have a 30's vintage book on engine design. It probably comments on fuels like distillate, but I don't know where that book is right now.
Gerald J.
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Hyperpack
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Joined: 05 Apr 2013
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Posted: 13 Apr 2017 at 5:41pm |
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There is an old discussion on the YT site titled What exactly is distillate.
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Bill Long
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Joined: 12 Sep 2009
Location: Bel Air, MD
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Posted: 13 Apr 2017 at 6:12pm |
Gentlemen, I am in WAY OVER MY HEAD. I had no idea what TVO meant. When we sold them 30's to 62 we always used gasoline till the diesel's came along. However, the gasoline right after WWII was pitiful. Once I could not ignite it with a match. Thank you so much for explaining in such detail. Take good care of my favorite. Good Luck! Bill Long
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