Ultraljudstvätt, går att använda Fotogen i den, eller Ed’s Red (aceton, lysfotogen, lacknafta, Dexron III). Sedan får man skrapa med något verktyg
Ed’s Red Bore Cleaner
1 part Dexron II, IIe or III ATF, GM Spec. D-20265 or later.
1 part Kerosene - deodorized, K1
1 part Aliphatic Mineral Spirits, Fed. Spec. TT-T-2981F, CAS #64741-49-9, or may substitute “Stoddard Solvent”, CAS #8052-41-3, or equivalent, (aka “Varsol”)
1 part Acetone, CAS #67-64-1.
(Optional up to 1 lb. of Lanolin, Anhydrous, USP per gallon, OK to substitute Lanolin, Modified, Topical Lubricant, from the drug store)
MIXING INSTRUCTIONS FOR “ER” BORE CLEANER:
Mix outdoors, in good ventilation. Use a clean 1 gallon metal, chemical-resistant, heavy gage PET or PVC plastic container. NFPA approved plastic gasoline storage containers are also OK. Do NOT use HDPE, which is permeable, because the acetone will eventually evaporate. The acetone in ER will also attack HDPE, causing the container to collapse, making a heck of a mess!
Add the ATF first. Use the empty container to measure the other components, so that it is thoroughly rinsed. If you incorporate the lanolin into the mixture, melt this carefully in a double boiler, taking precautions against fire. Pour the melted lanolin it into a larger container, rinsing the lanolin container with the bore cleaner mix, and stirring until it is all dissolved.
I recommend diverting a small quantity, up to 4 ozs. per quart of the 50-50 ATF/kerosene mix for optional use as an “ER-compatible” gun oil. This can be done without impairing the effectiveness of the remaining mix.