Packard Forum Index » V-8 (1955-56)

Just saw this in Popular Mechanics Sept 1953, not water(H2O) but H2O2. Anyone ever tried this?
Wes

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The water decarbonization trick is a long time practice, especially for underhood fire jobs. In fact we had a company car with a carbon knock recently where I walked by and showed it to the youngsters who never heard of it.

Whether hydrogen peroxide is better I don't know and the blurb as no supporting documentation.

As it's a stronger oxidizer it may well be better, but the stuff sold in the store is typically a 3% solution, so is also water injection anyway

The usual answer:

"It worked so well the big corporations bought up the patent and kept it a secret."

Same with water injection. If it were a really workable solution, it would be designed in on each engine or would be government mandated. Just look at diesel engine BlueDef fluid. The owners hate the hassle and the fleets hate the expense, but it's required by regulation.

jack vines

I seem to recall that in the early 1960s the tubro supercharged Olds F-85s used a water injection system while the turbo'ed Corvairs did not use any. I also recall squirting a water mist into a running engine to get rid of some of the carbon build-up. Maybe someone here has had experience with a water-injected engine. All that is new is old and ...

The Olds injection fluid was a water-alcohol mix

The rate of decomposition of H2O2 is increased violently by rust. Dave (O_D) and other chemists may call this a catalyzed reaction. Heat comes into being and oxygen is released rapidly, a part of the water even vaporized. Impressive but not really helpful.