Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision
Previous revision
Last revision Both sides next revision
techtalk:evo:engmech09c [2021/07/28 04:41]
hippysmack [Evo Motor Mount Specs]
techtalk:evo:engmech09c [2021/07/28 07:01]
hippysmack [Evo Motor Mount Specs]
Line 3: Line 3:
 ====== Evo Motor Mount Specs ====== ====== Evo Motor Mount Specs ======
  
-The 1986-1990 FSM lists no torque specs for the rear mounts or lower front mounts. \\+The 1986-1991 FSMs list no torque specs for the rear mounts or lower front mounts. \\
 There is only one spec in the 79-85 FSM (rear motor mounting bolt-nut: 16 to 24 ft lbs) and the 86-90 rear mount is the same part from 84-90. \\ There is only one spec in the 79-85 FSM (rear motor mounting bolt-nut: 16 to 24 ft lbs) and the 86-90 rear mount is the same part from 84-90. \\
 For the rest, there are general "​Torque Value" charts in the front of the service manual. ((1986-1990 HD Sportster FSM pg 1-8)) \\ For the rest, there are general "​Torque Value" charts in the front of the service manual. ((1986-1990 HD Sportster FSM pg 1-8)) \\
Line 11: Line 11:
 Below is a list of torque values from the different year model FSMs. \\ Below is a list of torque values from the different year model FSMs. \\
  
-^{{techtalk:​miscres:​instruction_sheet_header_4.png?​nolink&​820|}}|||||| +^{{techtalk:​miscres:​instruction_sheet_header_4.png?​nolink&​820|}}|||||||| 
-|  Torque Specs in HD Service Manuals ​ |||||| +|  ​**Torque Specs in HD Service Manuals**  |||||||| 
- 1986-1990 Engines  ​|||||| +|Point of \\ Torque|SAE|Metric|Year Model|Point of Torque|SAE|Metric|Year Model| 
-|Upper Front Mount to Head|25-30 ft-lbs ​((1986-1990 HD Sportster FSM pg 3-3))|34-40 Nm|Upper Front Mount to Frame|30-35 ft-lbs ​((1986-1990 ​HD Sportster FSM pg 3-3))|40-47 Nm| +|Rear Mount \\ Fasteners|16-24 ft-lbs \\ 25-30 ft-lbs|21-33 Nm \\ 34-41 Nm|1985→1990 \\ 1994-2003|Neg Cable Nut \\ to Rear Mount Stud|68-80 in-lbs|7-10 Nm|1994-2003|  
-|Top Front Mount to Heads|25-30 ft-lbs ​((1986-1990 HD Sportster FSM pg 3-3))|34-40 Nm|Top ​Front Mount to Frame|30-35 ft-lbs ​((1986-1990 HD Sportster FSM pg 3-3))|40-47 Nm|+|Lower Front Mount \\ to Engine|25-30 ft-lbs|34-41 Nm|1994-2003| Lower Front Mount \\ to Frame|25-30 ft-lbs|34-41 Nm|1994-2003| 
 +|Upper Front Mount \\ to Head|21-27 ft-lbs ​\\ 25-30 ft-lbs|28-36 Nm \\ 34-41 Nm|1986-1989 \\ 1990-2003|Upper Front Mount \\ to Frame|30-35 ft-lbs ​|40-47 Nm|1986-2003
 +|Top Center ​Mount \\ to Heads|21-27 ft-lbs ​\\ 25-30 ft-lbs|28-36 Nm \\ 34-41 Nm|1986-1989 \\ 1990-2003|Top Center ​Mount \\ to Frame|30-35 ft-lbs|41-47 Nm|1986-2003|
  
 ---- ----
Line 24: Line 26:
  
 ^{{techtalk:​miscres:​instruction_sheet_header_4.png?​nolink&​820|}}|||||||| ^{{techtalk:​miscres:​instruction_sheet_header_4.png?​nolink&​820|}}||||||||
-|  SAE  Torque Value Chart per Bolt Type  ||||||||+|  ​**SAE  Torque Value Chart per Bolt Type**  ​||||||||
 |Bolt size|SAE 2 \\ 74,000 psi \\ Low carbon|SAE 5 \\ 120,000 psi \\ Medium carbon \\ heat treat|SAE 7 \\ 133,000 psi \\ Medium carbon \\ alloy|SAE 8 \\ 150,000 psi \\ Medium carbon \\ alloy|Socket head \\ cap screw \\ 160,000 psi \\ High carbon \\ quenched tempered|Socket head \\ set screw \\ 212,000 psi \\ High carbon \\ quenched tempered|Studs| |Bolt size|SAE 2 \\ 74,000 psi \\ Low carbon|SAE 5 \\ 120,000 psi \\ Medium carbon \\ heat treat|SAE 7 \\ 133,000 psi \\ Medium carbon \\ alloy|SAE 8 \\ 150,000 psi \\ Medium carbon \\ alloy|Socket head \\ cap screw \\ 160,000 psi \\ High carbon \\ quenched tempered|Socket head \\ set screw \\ 212,000 psi \\ High carbon \\ quenched tempered|Studs|
 |#​6|-|-|-|-|-|9 in/lb|Use \\ SAE \\ 2,5 and 8 \\ values \\ when \\ grade \\ is known \\ with nut \\ and \\ sufficient \\ strength| |#​6|-|-|-|-|-|9 in/lb|Use \\ SAE \\ 2,5 and 8 \\ values \\ when \\ grade \\ is known \\ with nut \\ and \\ sufficient \\ strength|
Line 41: Line 43:
  
 ^{{techtalk:​miscres:​instruction_sheet_header_4.png?​nolink&​820|}}|||||||| ^{{techtalk:​miscres:​instruction_sheet_header_4.png?​nolink&​820|}}||||||||
-|  Metric ​ Torque Value Chart per Bolt Type  ||||||||+|  ​**Metric ​ Torque Value Chart per Bolt Type**  ​||||||||
 |Bolt size|SAE 2 \\ 5,202 kg/cm² \\ Low carbon|SAE 5 \\ 8,436 kg/cm² \\ Medium carbon \\ heat treat|SAE 7 \\ 9,350 kg/cm² \\ Medium carbon \\ alloy|SAE 8 \\ 10,545 kg/cm² \\ Medium carbon \\ alloy|Socket head \\ cap screw \\ 11,248 kg/cm² \\ High carbon \\ quenched tempered|Socket head \\ set screw \\ 14,902 kg/cm² \\ High carbon \\ quenched tempered|Studs| |Bolt size|SAE 2 \\ 5,202 kg/cm² \\ Low carbon|SAE 5 \\ 8,436 kg/cm² \\ Medium carbon \\ heat treat|SAE 7 \\ 9,350 kg/cm² \\ Medium carbon \\ alloy|SAE 8 \\ 10,545 kg/cm² \\ Medium carbon \\ alloy|Socket head \\ cap screw \\ 11,248 kg/cm² \\ High carbon \\ quenched tempered|Socket head \\ set screw \\ 14,902 kg/cm² \\ High carbon \\ quenched tempered|Studs|
 |2|-|-|-|-|-|-|Use \\ SAE \\ 2,5 and 8 \\ values \\ when \\ grade \\ is known \\ with nut \\ and \\ sufficient \\ strength| |2|-|-|-|-|-|-|Use \\ SAE \\ 2,5 and 8 \\ values \\ when \\ grade \\ is known \\ with nut \\ and \\ sufficient \\ strength|