No, the pictures were in some documentation I saw at JPL. They were working on a method to use air as a coolant instead of fuel. Stoichiometric mixes burn engines and leaner than that wont fire reliably. They added 4% H2 to the cylinder and very lean mixes could be used. Stratified charge engines won out.
If you have an older engine hydrogen is a good way to eliminate unburned hydrocarbons and get better mileage. JPL was working on a cracker to make it from some of the gasoline. They had a car with a bottle of H2 in the trunk to demo performance of the concept. Stellite valves and seats are the way to go when you do a major overhaul on the block. Kirk -----Original Message----- From: Keith Addison [mailto:[EMAIL PROTECTED] Sent: Thursday, May 17, 2001 10:32 PM To: biofuel@yahoogroups.com Subject: RE: [biofuel] ethanol for older motors Hi Kirk >Same way as unleaded gas. Use an additive or. . . > >Running ethanol in a stocker is a huge waste. The compression should be >raised to get decent mileage. Also: "The absence of lead, which lubricated the valve seat, causes the very hard oxidation products of the exhaust valve to wear down the seat. This valve seat recession is usually corrected by installing seat inserts, hardening the seats, or use of specific valve seat recession protection additives." >I saw photos of an ethanol fueled engine from a taxi with 300k on it. Looked >like a gasoline engine with 50k on it. Where did you see those photos? Are they on the Web maybe? >Kirk >Bush whacked or Gored. Some choice. Nader a truer word spoken in jest? (Sorry!!) Keith Addison Journey to Forever Handmade Projects Tokyo http://journeytoforever.org/ >-----Original Message----- >From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of >Phillip Paton >Sent: Thursday, May 17, 2001 8:58 PM >To: biofuel@yahoogroups.com >Subject: [biofuel] ethanol for older motors > > >Hi > >I have only recently had my eyes open to the idea of making your own >biofuels, >and find this list very interesting and informative. thanks > >I'd like to ask a question regarding using straight ethanol in older >motors, >originally designed for leaded petrol. The lead had a role in >lubricating the >valve and preventing valve seat recession. LRP also has an additive for >this purpose. >With the use of straight ethanol how is the valve lubrication achieved. >regards > >Phil Paton Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ --- Incoming mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.252 / Virus Database: 125 - Release Date: 5/9/2001 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.252 / Virus Database: 125 - Release Date: 5/9/2001 Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
