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techtalk:ih:engmech03f [2018/01/21 00:03] hippysmack [1983 Valve Guide Changes] |
techtalk:ih:engmech03f [2018/01/21 00:41] hippysmack |
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| - | * 1970-1979 Intake Valve: | ||
| - | * Both 1954-1978 Parts Catalogs (99451-78A issued in April of 1981 & 99451-78B copyright 1989) list the intake valve for 1970-1978 as the newer (Nittan 18027-80 or Eaton 18028-80 w / 3 angle seat) but these -80 valves began use in 1980. The 1979 parts catalogs (99451-79 & 99451-79A) and the 1979-1980 (99451-80) still show the 18070-70 intake valve as the current part number. | ||
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| - | ====== Head Sets with Year Changes ====== | ||
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| - | ^**1957-1959 XL** \\ **1958 XLC**^ ^**1958-1969 XLH/XLCH**^ ^**1970-1979 XLH/XLCH**^ ^**1980-1985 XL / XLS / XLX**^ | ||
| - | |(**F**) 16677-57 \\ (**R**) 16678-57 \\ (**57-58**) \\ (**replaced in 59 by ↓**)^ |(**F**) 16673-58 \\ (**R**) 16674-58 \\ (**58 only**) \\ (**replaced in 59 by ↓**) ^ |(**F**) 16673-70 \\ (**R**) 16674-70 \\ (**70 only**)^ |(**F**) 16673-80 \\ (**R**) 16674-80\\ (**80 only**)| | ||
| - | |(**F**) 16677-57A \\ (**R**) 16678-57A^ |(**F**) 16673-58A \\ (**R**) 16674-58A^ |(**F**) 16673-71 \\ (**R**) 16674-71 \\ (**71 only**)^ |(**F**) 16673-73C \\ (**R**) 16674-73C \\ (**available in 81**) \\ (**for 79-83**)| | ||
| - | | ^ | ^ |(**F**) 16673-72 \\ (**R**) 16674-72 \\ (**for 72-E73**)^ |(**F**) 16673-73D \\ (**R**) 16674-73D \\ (**79-E85**)| | ||
| - | | ^ | ^ |(**F**) 16673-73 \\ (**R**) 16674-73 \\ (**L73-78**)^ |(**F**) 16673-84 \\ (**R**) 16674-84 \\ (**L85**)| | ||
| - | | ^ | ^ |(**F**) 16673-73A \\ (**R**) 16674-73A \\ (**79 only**)^ | | | ||
| - | | ^ | ^ |(**F**) 16673-73B \\ (**R**) 16674-73B \\ (**available in 80**) \\ (**for 79-82**)^ | | | ||
| - | | ^ | ^ |(**F**) 16673-73C \\ (**R**) 16674-73C \\ (**available in 81**) \\ (**for 79-83**)^ | | | ||
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| - | ====== Intake Valves and Components with Year Changes ====== | ||
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| - | ^**Intake Group**^ ^**1957-1959 XL** \\ **1958 XLC**^ ^**1958-1969 XLH/XLCH**^ ^**1970-1979 XLH/XLCH**^ ^**1980-1985 XL / XLS / XLX**^ | ||
| - | |**Valve**^ |18070-57 \\ (1-11/16" Dia)((HD Service Bulletin #392 dated 11-27-1957))^ |18070-58 \\ (1-13/16" Dia) ((HD Service Bulletin #392 dated 11-27-1957))^ |18070-70^ |18070-70 (**last use in 80**) \\ 18027-80 (Nittan) \\ 18028-80 (Eaton) \\ **either brand is standard** \\ **for 79-85**| | ||
| - | |:::^ | ^ | ^ |18027-80 (Nittan) \\ 18028-80 (Eaton) \\ **either brand is standard** \\ (**added in 81**) \\ (**replacement for 1979**)^ | | | ||
| - | |**Valve Guide**^ |18176-57 (Std) \\ 18179-57 (.001" OS) \\ 18180-57 (.002" OS) \\ (**replaced in '59 by ↓**)^ |18176-57 (Std) \\ 18179-57 (.001" OS) \\ 18180-57 (.002" OS) \\ (**replaced in '59 by ↓**)^ |18176-57A (Std) \\ 18179-57A (.001" OS) \\ 18180-57A (.002" OS) \\ (**replaced in '80 by ↓**)^ |18176-80 (Std) (**80 only**) \\ 18176-57B (Std) (**80**) \\ 18179-57B (.001" OS) \\ 18180-57B (.002" OS) \\ 18191-79 (.004" OS) (**81**) \\ (**All replaced in '83 by ↓**)| | ||
| - | |:::^ |18176-57A (Std) \\ 18179-57A (.001" OS) \\ 18180-57A (.002" OS)^ |18176-57A (Std) \\ 18179-57A (.001" OS) \\ 18180-57A (.002" OS) ^ |18176-57B (Std) \\ 18179-57B (.001" OS) \\ 18180-57B (.002" OS) \\ 18191-79 (.004“ OS) (**81**) \\ (**for 79-82**) \\ (**replaced in '83 by ↓**)^ |18176-57C (Std) \\ 18179-57C (.001" OS) \\ 18180-57C (.002" OS) \\ 18191-79A (.004" OS) \\ (**for 79-85**)\\ \\ See also \\ [[techtalk:ih:engmech03f#valve_guide_changes|1983 Valve Guide Changes]]| | ||
| - | |:::^ |:::^ |:::^ |18176-57C (Std) \\ 18179-57C (.001" OS) \\ 18180-57C (.002" OS) \\ 18191-79A (.004" OS) \\ (**for 79-85**)^ |:::| | ||
| - | |**Valve Guide** \\ **Retainer Ring**^ | ^ | ^ | ^ |18120-80 (**80 only**)| | ||
| - | |**Valve Seat** \\ **Repair Insert**^ |18055-58 (**added in 74**) \\ (**for 58-69**)^ |18055-58 (**added in 74**) \\ (**for 58-69**)^ |18055-70 (**added in 74**) \\ (**for 70 up**)^ |18055-70| | ||
| - | |**Spring Collar** \\ **(lower)**^ |18220-57^ |18220-57^ |18220-57^ |18220-80 (**80 only**) \\ 18220-57 (**57-E81**) \\ 18220-81 (**L81-E83**) \\ 18220-83 (**L83-85**)| | ||
| - | |**Valve Spring** \\ **(inner)**^ |18204-57 \\ (**replaced in 71 by ↓**)^ |18204-57 \\ (**replaced in 71 by ↓**)^ |18204-57 \\ (**replaced in 71 by ↓**)^ |18204-57A (**71-E83**) \\ 18204-83 (**L83-85**)| | ||
| - | |:::^ |18204-57A \\ (**for 57-E83**)^ |18204-57A \\ (**for 57-E83**)^ |18204-57A \\ (**for 57-E83**)^ |:::| | ||
| - | |**Valve Spring** \\ **(outer)**^ |18203-57 \\ (**replaced in 71 by ↓**)^ |18203-57 \\ (**replaced in 71 by ↓**)^ |18203-57 \\ (**replaced in 71 by ↓**)^ |18203-57A (**71-E83**) \\ 18203-83 (**L83-85**)| | ||
| - | |:::^ |18203-57A \\ (**for 57-E83**)^ |18203-57A \\ (**for 57-E83**)^ |18203-57A \\ (**for 57-E83**)^ |:::| | ||
| - | |**Spring Collar** \\ **(upper)**^ |18221-57 \\ (**replaced in '59 by ↓**)^ |18221-57 \\ (**replaced in '59 by ↓ **)^ |18221-57A \\ (**replaced in 82 by ↓ **)^ |18221-57A (**L58-81**) \\ 18221-57B (**82**) \\ (**for 79-85**)| | ||
| - | |:::^ |18221-57A \\ (**for 57 up**)^ |18221-57A \\ (**for 58 up**)^ |18221-57B \\ (**for 79-85**)^ |:::| | ||
| - | |**Valve Keepers** \\ **(keys)**^ |18228-30^ |18228-30^ |18228-30^ |18228-30| | ||
| - | |**Valve Stem Cap**^ | X ^ | X ^ | X ^ | X | | ||
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| - | ====== Exhaust Valves and Components with Year Changes ====== | ||
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| - | ^**Exhaust Group**^ ^**1957-1959 XL** \\ **1958 XLC**^ ^**1958-1969 XLH/XLCH**^ ^**1970-1979 XLH/XLCH**^ ^**1980-1985 XL / XLS / XLX**^ | ||
| - | |**Valve**^ |18080-57 ^ |18080-58 \\ (**58-62 XLH**) \\ (**58-61 XLCH**) \\ (**obsolete for 63**)^ |18080-58A^ |18080-58B (**last use in 80**) \\ 18033-80 (Nittan) (**81**) \\ 18036-80 (Eaton) (**81**) \\ **either brand is standard** \\ **for 79-85**| | ||
| - | |:::^ |:::^ |18080-58A \\ (**63 and up XLH**) \\ (**62 and up XLCH**) \\ (**58 and up replacement**)^ |18033-80 (Nittan) \\ 18036-80 (Eaton) \\ **either brand is standard** \\ (**added in 81**) \\ (**replacement for 1979**)^ | | | ||
| - | |**Valve Guide**^ |18170-57 (Std) \\ 18171-57 (.001" OS) \\ 18172-57 (.002" OS)^ |18170-57 (Std) \\ 18171-57 (.001" OS) \\ 18172-57 (.002" OS)^ |18170-57 (Std) \\ 18171-57 (.001" OS) \\ 18172-57 (.002" OS) \\ (**replaced in '80 by ↓**)^ |18170-80 (Std) (**80 only**) \\ 18170-57A (Std) (**80**) \\ 18171-57A (.001" OS) \\ 18172-57A (.002" OS) \\ 18168-79 (.004" OS) (**81**) \\ (**for 79-82**) \\ (**All replaced in '83 by ↓**)| | ||
| - | |:::^ | ^ | ^ |18170-57A (Std) \\ 18171-57A (.001” OS) \\ 18172-57A (.002“ OS) \\ 18168-79 (.004” OS) (**81**) \\ (**for 79-82**) \\ (**replaced in '83 by ↓**)^ |18170-57B (Std) \\ 18171-57B (.001” OS) \\ 18172-57B (.002“ OS) \\ 18168-79A (.004" OS) \\ (**for 79-85**) \\ See also \\ [[techtalk:ih:engmech03f#valve_guide_changes|1983 Valve Guide Changes]]| | ||
| - | |:::^ | ^ | ^ |18170-57B (Std) \\ 18171-57B (.001” OS) \\ 18172-57B (.002“ OS) \\ 18168-79A (.004" OS) \\ (**for 79-85**)^ | | | ||
| - | |**Valve Guide** \\ **Retainer Ring**^ | ^ | ^ | ^ |18120-80 (**80 only**)| | ||
| - | |**Valve Seat** \\ **Repair Insert**^ |18052-58 (**added in 74**) \\ (**for 58-85**)^ |18052-58 (**added in 74**) \\ (**for 58-85**)^ |18052-58 (**added in 74**) \\ (**for 58-85**)^ |18052-58| | ||
| - | |**Spring Collar** \\ **(lower)**^ |18220-57^ |18220-57^ |18220-57^ |18220-80 (**80 only**) \\ 18220-57 (**57-E81**) \\ 18220-81 (**L81-E83**) \\ 18220-83 (**L83-85**)| | ||
| - | |**Valve Spring** \\ **(inner)**^ |18204-57 \\ (**replaced in 71 by ↓**)^ |18204-57 \\ (**replaced in 71 by ↓**)^ |18204-57 \\ (**replaced in 71 by ↓**)^ |18204-57A (**71-E83**) \\ 18204-83 (**L83-85**)| | ||
| - | |:::^ |18204-57A \\ (**for 57-E83**)^ |18204-57A \\ (**for 57-E83**)^ |18204-57A \\ (**for 57-E83**)^ |:::| | ||
| - | |**Valve Spring** \\ **(outer)**^ |18203-57 \\ (**replaced in 71 by ↓**)^ |18203-57 \\ (**replaced in 71 by ↓**)^ |18203-57 \\ (**replaced in 71 by ↓**)^ |18203-57A (**71-E83**) \\ 18203-83 (**L83-85**)| | ||
| - | |:::^ |18203-57A \\ (**for 57-E83**)^ |18203-57A \\ (**for 57-E83**)^ |18203-57A \\ (**for 57-E83**)^ |:::| | ||
| - | |**Spring Collar** \\ **(upper)**^ |18222-57 \\ (**57-E58**)^ |18222-57 \\ (**57-E58**) ^ |18221-57A \\ (**replaced in 82 by ↓ **)^ |18221-57A (**L58-81**) \\ 18221-57B (**82**) \\ (**for 79-85**)| | ||
| - | |:::^ |18221-57A \\ **(L58 up)**^ |18221-57A \\ (**L58 up**)^ |18221-57B \\ (**for 79-85**)^ |:::| | ||
| - | |**Valve Keepers** \\ **(keys)**^ |18228-57 \\ (**57-E58**)^ |18228-57 \\ (**57-E58**) ^ |18228-30 ^ |18228-30| | ||
| - | |:::^ |18228-30 \\ **(L58 up)**^ |18228-30 \\ (**L58 up**)^ |:::^ |:::| | ||
| - | |**Valve Stem Cap**^ |18234-57 \\ (**57-E58 only**)^ |18234-57 \\ (**57-E58 only**)^ |:::^ |:::| | ||
| - | |:::^ |(**L58 up - Obsolete**)^ |(**L58 up - Obsolete**)^ | X ^ | X | | ||
