TRUCK SERVICE MANUAL
BRAKES-AIR
PROBLEM
POSSIBLE CAUSE
REMEDY
Excessive Use
of Alcohol
Leaky compressor unloaders
Replace compressor unload-
(supercharge and turbochargers
induction only). Leaky
unloaders can cause alcohol to
be "blown" into the engine in-
take.
Evaporator is subjected to ex-
Relocate alcohol evapora-
cessive temperature (greater
tor.
than 490 C, 1200 F).
Check valve leaking or inop-
Replace necessary parts or
erative (Engine Air Cleaner
complete check valve.
Inductiononly).
Excessive system leakage
Check system leakage.
(causing compressor to be in
Leakage should not be
loaded compressing air cycle
greater than 2 psi in one
in excess of normal).
minute for single vehicles
(with brakes released).
Choke fitting, B.W. part No.
Install choke fitting (B.W.
245103, not used (supercharged
245103) at compressor in-
and turbocharged induction
let.
only).
Clogged air strainer (will
Clean or replace air
cause excessive intake vacuum).
strainer element.
Deposit of Residue
Wrong alcohol being used.
Use only pure methanol al-
in Valves from
cohol, Bendix-Westinghouse
Alcohol
"
Air Guard" or equivalent.
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