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| Author |
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kevin
| | Posted on Thursday, March 13, 2003 - 06:05 am: | 
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It's about time to decoke the Simplex.In the past I,ve used caustic soda on air cooled 2 strokes(cast iron) which works a treat or diesel fuel which works well but slower.Any idea if this will affect a salt water cooled cylinder
regards Kevin |
marks
| | Posted on Thursday, March 13, 2003 - 06:28 pm: |
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Kevin,
Caustic Soda should not affect the cylinder. As long as you maintain the PH at around 11 it will passivate the iron(stop the corrosion process). Don't let it fall below 9 or above 13 or you will greatly accelerate any existing corrosion.
From memory a 2.5% solution should give you this range.
I don't have any experience with decoking with soda ash though(I usually scrape etc).
IMHO I don't like caustic soda, one splash in the eye and you've got problems. I usually use soda ash(laundry soda). For a PH of 11 you need a 5% solution.
Mark S. |
kevin
| | Posted on Friday, March 14, 2003 - 11:20 pm: |
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Thanks for the reply Mark,much appreciated.
Kevin |
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