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Hit & Miss Gas Engine Discussion

E85 Ethanol in old engines


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  #1  
Old 01-01-2008, 05:33:40 PM
JAYPF
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Default E85 Ethanol in old engines

ANY IDEAS on e85 and old engines and tractorsjust looking for ideas as just became avalable here thank you
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Old 01-01-2008, 06:03:58 PM
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Fred Van Hook Fred Van Hook is offline
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Default Re: E85

E85 has a high octane. Over 100. These engines were made to run on a lot lower octane (40). It won't hurt to run them on it if you want too. I use lantern fuel (octane 55) but you have to be real careful with moisture.
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Old 01-01-2008, 07:23:25 PM
BDMelon BDMelon is offline
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Default Re: E85

craig,, i was looking for old post on (E85) stuff can not find it,to give to JAYPF For his question & answers to (E85) I know we had a post to this question before
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Old 01-01-2008, 07:34:47 PM
BDMelon BDMelon is offline
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Default Re: E85

HEY thanks jk , for the HELP
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Old 01-01-2008, 08:18:24 PM
Johnny T Johnny T is offline
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Default Re: E85

Well i've heard that with new cars it doesn't get as good fuel mileage and there isn't as much upper cylinder lubrication. So on the lube part I would say stay away.
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Old 01-01-2008, 08:45:25 PM
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Default Re: E85

Some of these old engines where made to run on straight alcohol. Contrary to popular belief, high octane does not produce more power. Higher compression does.
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Old 01-02-2008, 12:03:44 AM
Dennis K. Nash Dennis K. Nash is offline
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Default Re: E85 Ethanol in old engines

My brother-in-law runs his 1 3/4hp Economy on E85. In this cold weather it requires a lot more choke.
Last summer he was running it and it quit. No compression. We pulled the head (first time for this engine). It was carboned up bad. With a thorough cleaning the compression was restored. Don't know if it was the E-85 or just years of accumulation.
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Old 01-02-2008, 11:50:14 AM
Patrick McNallen Patrick McNallen is offline
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Default Re: E85 Ethanol in old engines

I wouldn't think the E 85 would cause a carbon problem. In fact, I would expect it to deposit very little carbon. It might loosen enough old carbon quickly enough to cause a temporary problem the first time you use it in an engine. E85 most likely has detergent and solvent additives, and I think the ethanol has a natural solvent/hydrating effect on carbon. My main concern about it would be possible corrosion problems in old fuel systems and the fact that it probably goes stale and rotten even quicker than the typical 10-15% ethanol pump gas that is sold today. E 85 would probably need a different (richer) mixer adjustment than gasoline, and I would expect to find that it could cause starting problems in some engines in cold, damp weather. More choking would probably solve that, but if not, you could prime the engine with camp fuel and then run it on E85. The exhaust odor would probably be about as bad as regular gasoline if the E85 has the same amount of "odorant" added to it.
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Old 01-04-2008, 12:35:41 AM
JAYPF
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Default Re: E85 Ethanol in old engines

hay guys thanks for help i figured this was talked about already thanks again
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