SERVICE MANUAL MAINTENANCE 40,000 km or 25,000 Miles Make   sure   all   fittings   are   tight   and   bubbles   are present in alcohol when compressor is compressing air. Refer to Trouble Shooting Guide if evaporator assembly is not operating properly. 80,000 km or 50,000 Miles If  strainer  is  present,  check  to  be  sure  it  is  clear. Clean or replace if necessary. 160,000 km or 100,000 Miles Disassemble evaporator and check valve (if equipped);   clean   all   parts,   replacing   all   gaskets   and rubber parts. FILLING 1. Always  use  the  filler  plug  on  AE-1  evaporator. Frequent removal of alcohol reservoir will cause possible  deterioration  of  gasket  which  will  allow leakage and affect performance. 2. Fill reservoir 2/3 full.  Be certain proper alcohol is used. DISASSEMBLY, CLEANING AND INSPECTION, REASSEMBLY 1. Carefully  disassemble,  noting  order  of  removal of parts. 2. Wash  all  metal  parts  in  solvent;  wipe  all  rubber parts clean. 3. Inspect    all    parts    and    replace    all    parts    not considered serviceable. 4. Assemble  parts,  making  sure  new  gaskets  and rubber parts are properly installed. TESTING FOR SERVICABILITY With    compressor    in    compressing    cycle,    bubbles should   be   evident   in   alcohol.   If   air   bubbles   are   not present, check Trouble Shooting Guide. INSTALLATION OF ALCOHOL EVAPORATOR KITS Installation  of  alcohol  evaporator  on  vehicles  in  the field  is  a  common  practice  and  is  easily  accomplished. However,  complaints  of  inoperative  alcohol  evaporators or   excessive   use   of   alcohol   can   usually   be   traced   to either  the  wrong  kit  being  installed  or  an  incorrect  in- stallation  of  the  proper  kit.  Therefore,  the  selection  and installation    of    the    correct    kit    is    important.    All    field installation   kits   have   installation   instructions;   however, the following information may be helpful. There  are  four  different  types  of  alcohol  evaporator kits  and  it  is  very  important  the  correct  kit  is  installed. Before selecting the alcohol evaporator kit, you must first determine  the  type  compressor  and  the  method  of  air induction  to  the  compressor.    After   this   determination has   been   made,   the   alcohol   evaporator   kit   can   be selected from one of the following four types: The  Tu-Flo  501  air  compressor  will  use  the  same installation in all cases as the Tu-Flo 500 air compressor. Standard Kit (Fig. 5) This  kit  is  used  where  the  compressor  utilizes  its  own strainer and piping consists of a  single  4.76  mm  (3/16") O.D.  copper  tubing  line  run  from  the  top  of  the  alcohol evaporator to the adapter mounted between the strainer and compressor inlet. Fig. 5 Standard Kit (AE-1 Alcohol Evaporator Illustrated) Engine Air Cleaner Induction (Fig. 6 and Fig. 71 This kit is used when the compressor inlet is connected to  the  engine  air  cleaner  on  the  engine  intake  manifold and  the  engine  is  naturally  aspirated  (not  supercharged or turbocharged). A single check valve "A" is employed in this  installation  and  depending  on  evaporator  used  may be  connected  directly  to  the  evaporator  (as  shown)  or connected to the governor (refer to installation instructions).  Note  line  "B"  is  connected  to  the  unloader port of the governor. When the compressor is  unloaded (not  compressing  air),  the  air  pressure  in  line  "B"  holds the  check  valve  "A"  closed  and  prohibits  alcohol  from being drawn into line "C" thus stopping any possible flow of alcohol from the jar into the engine intake. CTS-4079 - CHAPTER XIII - Page 5