prins@cornell.UUCP (Jan Prins) (12/05/85)
>> INTERNAL STEAM CLEAN: get a pint or a quart of water in a pourable container. >> Take the air cleaner cover off and get a good grip on the throttle. The car >> must be hot. Rev the car up to 3 grand or so, and pour water down the barrel >> of the carb, fast enough to slow the engine down, but not enough to stall >> it out. Use the throttle freely to keep it going. If the car stalls and >> floods, open the throttle and wait a few. Sounds wild, but I have cured >> (temporarily, at least) a few pingers this way. >Has anyone else tried this??? I have never heard of doing this before I would be extremely careful about pouring liquids down carburetor throats. Any liquid (not yet vaporized) that gets into the cylinder will raise the pressure above normal during the compression stroke (because liquid is not compressible). If enough water or whatever gets in, there will be hydrostatic lock. At 3000 r.p.m. that's certain to break the connecting rod. It is fairly common practice to prepare an engine for storage by pouring oil through the carburetor while the engine is running. Oil is far more viscous than water and hence can't flow into the combustion chamber at a great rate. But even this procedure must be undertaken carefully. I would think the potential for an accident with water is greater. B.T.W. I can't really figure out why the steam would dislodge the carbon buildup: chemically the carbon is very inert. What is the mechanism? Mechanical shock? jan prins prins@gvax.cs.cornell.edu (ARPA) prins@cornell.csnet {vax135, ihnp4, decvax}!cornell!prins
mikey@techsup (12/10/85)
/* ---------- "Re: Internal "steam clean"" ---------- */ >> INTERNAL STEAM CLEAN: get a pint or a quart of water in a pourable container. >> Take the air cleaner cover off and get a good grip on the throttle. The car >> must be hot. Rev the car up to 3 grand or so, and pour water down the barrel >> of the carb, fast enough to slow the engine down, but not enough to stall >> it out. Use the throttle freely to keep it going. If the car stalls and >> floods, open the throttle and wait a few. Sounds wild, but I have cured >> (temporarily, at least) a few pingers this way. I saw this used on a PBS show called the 'Saturday mechanic' or something like that, only they cautioned against pouring water in the engine. They recommended using an old Windex bottle or something to that effect. They explained that the water vapor creates a 'thermal shock' that can cause carbon to dislodge. They recommended running for a few miles after the treatment and then changing the plugs, as they will probably get fouled if the treatment worked. This is probably what makes the trick of trickleing STP GAS treatment down the carb at fast idle work. mikey at bbimg trsvax!techsup!bbimg!mikey ps. 55, it's not even a good idea, it S*CKS! pss. All the new 86 Chryslers have a 125MPH speedo in their brochures except the OMNI/Charger series! For those, they are available at extra cost. 55, an idea whose time has passed.
mikey@techsup (12/25/85)
First off, there WAS a law limiting the speedo top 85, chalk it up to Carter. The 1980 CBX motorcycle, one of the hottest things to FLY down the highway had a speedo it could peg in 2nd gear because of this assinine law. Ford got around this on the one Mustang GT by putting in a 125 or so MPH speedo but they only labeled it to 85, you could buy aftermarket stickers for the face, or just ignore it and read the ticks. The law went off the books about 1981 (I think!) but it's taken till now for the fast speedos to show up on cars again. The '85 corvette had a +85 speedo. I remember the first year of the Honda V65 had a 85 but I don't know when they changed up. (My 78 CBX has a 155 mph unit, but I don't think it will peg it, 145 seems to be the top) My 85 Dodge GLH turbo can go in excess of 125 (I can testify to this fact!) I have been told that top speed in the GLH turbo is 142 and the Shelby turbo tops at 146. BTW, I sustained that 125 speed for over 8 minutes before dropping back below 100. mikey trsvax!techsup!bbimg!mikey