Hyundai r35z-7 Workshop Manual page 358

(17) Cleaning of parts
Put all parts in rough cleaning vessel
filled with kerosene and clean them
(Rough cleaning).
If dirty part is cleaned with kerosene just
after putting it in vessel, it may be
damaged. Leave it in kerosene for a
while to loosen dust and dirty oil.
If this kerosene is polluted, parts will be
damaged and functions of reassembled
valve will be degraded.
Therefore, control cleanliness of
kerosene fully.
Put parts in final cleaning vessel filled
with kerosene, turning it slowly to clean
them even to their insides (Finish
cleaning).
Do not dry parts with compressed air,
since they will be damaged and/or rusted
by dust and moisture in air.
(18) Rust prevention of parts.
Apply rust-preventives to all parts.
If left as they after being cleaned, they will
be rusted and will not display their
functions fully after being reassembled.
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