Differences

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

--- techtalk:evo:engmech02 [2019/02/10 04:29]
hippysmack [91-99 Anti-Rotation Pins]
+++ techtalk:evo:engmech02 [2019/08/11 04:29]
ixl2relax [Comparing OEM and Andrews Cam Grinds]
@@ Line 3: / Line 3: @@
 ====== Camshafts ======
-===== Cam Specs =====
+===== Cam Specs - OEM & SE =====
 {{:techtalk:evo:engmech:camspecs-d-w-se-chart.jpg|400}}
@@ Line 15: / Line 15: @@
 |C ((MMI Evolution Cam Specs dated 10/5/92))|.278"|1°ATDC|42° ABDC|225°|.280"|42° BBDC|3° ATDC|225°|4°|
-==== Comparing Andrews and OEM Cam Grinds ====
+==== Comparing OEM and Andrews Cam Grinds ====
-These figures are from the Sportster Evolution Cams PDF from Andrews Products.
+These figures are from the Sportster Evolution Cams PDF from Andrews Products. ((Page25 - http://www.bigboarv-twin.com/wp-content/uploads/2015/07/Andrews-Products-Catalogue-20141.pdf))
-|Grind|Timing \\ @ .053" Lift|CL|Duration @ \\ .053" Lift|Durarion @ \\ .020" Lift|Max Lift|TDC Lift|
+|Grind|I/E|Timing \\ @ .053" Lift|CL|Duration @ \\ .053" Lift|Durarion @ \\ .020" Lift|Max Lift|TDC Lift|
-|W|10°/28°|99°|218°|256°|.474"|.122"|
+|W|I|10°/28°|99°|218°|256°|.474"|.122"|
-|W|38°/16°|101°|234°|272°|.474"|.138"|
+|:::|E|38°/16°|101°|234°|272°|.474"|.138"|
-|N-4|30°/46°|98°|256°|296°|.490"|.216"|
+|N4|I|30°/46°|98°|256°|296°|.490"|.216"|
-|N-4|52°/24°|104°|256°|296°|.490"|.189"|
+|:::|E|52°/24°|104°|256°|296°|.490"|.189"|
-CL = Centerline
+I/E = Intake/Exhaust --- CL = Centerline
+\\
+Thanks to Maxeffort of the XLForum for the following Degree Wheel Charts of these various cams.((Maxeffort at this post: http://xlforum.net/forums/showthread.php?t=2074322))\\
+Note that the measurements are based on the .053 lift specs.
+{{:techtalk:evo:engmech:camwheel-hdw-218-234-474-maxeffort.jpg?400|}}   {{:techtalk:evo:engmech:camwheel-hdd-223-223-458-maxeffort.jpg?400|}}
+\\
+{{:techtalk:evo:engmech:camwheel-an4-256-256-490-maxeffort.jpg?400|}}   {{:techtalk:evo:engmech:camwheel-an2-240-244-465-440-maxeffort.jpg?400|}}
+\\
+{{:techtalk:evo:engmech:camwheel-h560-256-266-560-maxeffort.jpg?400|}}   {{:techtalk:evo:engmech:camwheel-h570-240-250-570-maxeffort.jpg?400|}}
+\\
+{{:techtalk:evo:engmech:camwheel-rs567-253-253-567-maxeffort.jpg?400|}}   {{:techtalk:evo:engmech:camwheel-rs575-244-244-575-maxeffort.jpg?400|}}
+\\
 ===== Removing / Installing Evo Cams =====
 ===== Sub Documents =====
@@ Line 78: / Line 101: @@
 ====== Tappets (lifters) ======
+====== Hydraulic Lifters ======
+===== Sub-Documents =====
+  * [[techtalk:evo:engmech02b|91-99 Lifter Pin Upgrade to 00-05 Lifter Pin Screws]]
+See also in the REF section of the Sportsterpedia:
+  * [[techtalk:ref:svcproc16|Hydraulic Lifter - Disassembly / Inspection / Assembly]]
+There was a running change to new style hydraulic lifters in 1986 for Sportsters. ((1986-1990 HD Sportster FSM pg 3-44)) \\
+They were the same as those used in 1340cc engines beginning in the 1986 model year. \\
+This change was made to allow for one component to service the entire product line. \\
+Beginning with Sportster crankcase numbers; \\
+: 1786 127 043 \\
+: 1886 127 001 \\
+The new lifters were identified with the presence of two notches opposite each other in the pushrod socket. \\
 ===== Oil feed to lifters =====
@@ Line 112: / Line 151: @@
 |  91-99 anti-rotation pin hardware ((photos by Hippysmack))  |||
 |{{:techtalk:evo:engmech:anti-rotation_pin_hardware_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:engmech:anti-rotation_pin_hardware_2_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:engmech:anti-rotation_pin_o-ring_by_hippysmack.jpg?direct&300|}}|
+|  App. pin dims ((photos by Hippysmack))  ||
+|{{:techtalk:evo:engmech:91-99_anti-rotation_pins_7_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:engmech:91-99_anti-rotation_pins_8_by_hippysmack.jpg?direct&300|}}|
+|  App. pin plate dims ((photos by Hippysmack))  |||
+|{{:techtalk:evo:engmech:91-99_anti-rotation_pins_9_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:engmech:91-99_anti-rotation_pins_10_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:engmech:91-99_anti-rotation_pins_11_by_hippysmack.jpg?direct&300|}}|
 |  Slide the pins in the holes, install the O-rings over the pins. ((photos by Hippysmack))  |||
@@ Line 138: / Line 183: @@
 **Torque**: 55-65 in. lbs. (6.2-7.3 Nm) ((04 HD Sportster FSM pg 3-7)) \\
-| 00-05 anti-rotation screws ((photo by Hoppysmack))  |  End of screws run up into the case. ((photos by JohnK of the XLFORUM http://xlforum.net/forums/showthread.php?t=1422877&page=6))  ||
+|  00-05 anti-rotation screws ((photo by Hoppysmack))  |  App dims  (photos by Hippysmack))  ||
-|{{:techtalk:evo:engmech:00-05_anti-rotation_pins_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:05_tappet_screws_1_by_johnk.jpg?direct&300|}}|{{:techtalk:evo:oil:05_tappet_screws_2_by_johnk.jpg?direct&300|}}|
+|{{:techtalk:evo:engmech:00-05_anti-rotation_pins_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:engmech:00-05_anti-rotation_pins_2_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:engmech:00-05_anti-rotation_pins_3_by_hippysmack.jpg?direct&300|}}|
+|  End of screws run up into the case. ((photos by JohnK of the XLFORUM http://xlforum.net/forums/showthread.php?t=1422877&page=6))  ||
+|{{:techtalk:evo:oil:05_tappet_screws_1_by_johnk.jpg?direct&300|}}|{{:techtalk:evo:oil:05_tappet_screws_2_by_johnk.jpg?direct&300|}}|
 ===== 06-Up Anti-Rotation Device =====
@@ Line 148: / Line 196: @@
 It is designed for lifters that have a flat cut on each side. \\
-|  2006 ARD block ((photo by rocketmangb of the XLFORUM http://xlforum.net/forums/showthread.php?t=1768265&page=31))  |  2013 ARD block ((photo by chris_b_owens of the XLFORUM http://xlforum.net/forums/showthread.php?p=5042968))  |
+These work OK for stock cams. \\
+But if you're upgrading to bigger cams, anything more than .600 lift has too small a base circle. ((rocketmangb of the XLFORUM http://xlforum.net/forums/showthread.php?p=5613140&highlight=anti+rotation#post5613140)) \\
+(and they will nearly drop out of the ARDs and they can also spin away from them) \\
+The big issue is that they turn sideways with the roller not turning on the cam lobe. \\
+(which can heat up and destroy the roller and the cam lobe) \\
+|  ARD block ((photo by rocketmangb of the XLFORUM http://xlforum.net/forums/showthread.php?t=1768265&page=31))  |  ARD block installed ((photo by chris_b_owens of the XLFORUM http://xlforum.net/forums/showthread.php?p=5042968))  |
 |{{:techtalk:evo:engmech:06_ard_by_rocketmangb.jpg?direct&300|}}|{{:techtalk:evo:engmech:2013_ard_by_chris_b_owens.jpg?direct&300|}}|
-===== Lifter Anti-Rotation =====
-Anti-roll pins / blocks (respectively) are designed to keep roller lifters from turning sideways during operation. \\
-A roller that's turned sideways does not roll. ((NRHS Sales of the XLFORUM http://xlforum.net/forums/showthread.php?t=1768265&page=29)) \\
-{{:techtalk:evo:engmech:99-00_anti-rotation_pin_comparison_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) {{:techtalk:evo:engmech:99-00_anti-rotation_pin_comparison_2_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack))
 ====== Pinion Gear ======

Trace: • EVO: Electrical System • W E L C O M E !

Differences

Navigation

Search

Toolbox