Differences

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--- techtalk:evo:oil07 [2022/03/10 23:23]
hippysmack [Primary / Transmission Vent]
+++ techtalk:evo:oil07 [2024/01/06 03:58] (current)
hippysmack
@@ Line 2: / Line 2: @@
 ====== EVO: Oiling & Lubrication ======
 \\
-====== Trans/Primary Oiling ======
+====== Primary/Transmission Oiling ======
 [[techtalk:ref:oil02|Click here]] for primary oil change intervals and capacities in the REF section of the Sportsterpedia. \\
 ====== Checking Primary Oil Level ======
 If the motorcycle has been operated recently, wait app. 10 minutes before checking the primary oil to allow the oil to settle in the case. \\
@@ Line 28: / Line 28: @@
 |{{:techtalk:evo:oil:1986-1990_sportster_primary_oil_level_and_fill_holes_by_c3-cycle-tech_pic6.jpg?direct&400|}}|{{:techtalk:evo:engmech:1986-1990_sportster_case_drains_by_c3-cycle-tech.jpg?direct&400|}}|
-|1991-1993 Sportster \\ primary/transmission oil drain & oil site level bolts ((Photo courtesy of chris16371 of the XLFORUM http://xlforum.net/forums/showthread.php?t=2012409&page=4))|1991-1993 Sportster primary/transmission oil fill hole ((Photo courtesy of chris16371 of the XLFORUM http://xlforum.net/forums/showthread.php?t=2012409&page=4))|
+|1991-1993 Sportster \\ primary/transmission oil drain & oil site level bolts ((Photo courtesy of chris16371 of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/lubrication-and-lubricants/189056-91-1200-primary-oil/page4?t=2012409&page=4))|1991-1993 Sportster primary/transmission oil fill hole ((Photo courtesy of chris16371 of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/lubrication-and-lubricants/189056-91-1200-primary-oil/page4?t=2012409&page=4))|
 |{{techtalk:evo:oil:1991-1993_sportster_oil_site_bolts_for_primary-transmission_by_chris16371.jpg?direct&400|}}|{{techtalk:evo:oil:1991-1993_sportster_primary-transmission_oil_fill_hole_by_chris16371.jpg?direct&400|}}|
-|Primary / Transmission oil drain plug on 2001 Sportster ((photo courtesy of bustert of the XLFORUM http://xlforum.net/forums/showthread.php?postid=5523415#post5523415))|Primary / Transmission fill and check site for a \\ typical 1994-later Sportster (1994 example)((Annotated by IXL2Relax at the XLForum))|
+|Primary / Transmission oil drain plug on 2001 Sportster ((photo courtesy of bustert of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/lubrication-and-lubricants/189056-91-1200-primary-oil/page4?postid=5523415#post4068478))|Primary / Transmission fill and check site for a \\ typical 1994-later Sportster (1994 example)((Annotated by IXL2Relax at the XLForum))|
 |{{:techtalk:evo:oil:primary-transmission_drain_plug_by_bustert.jpg?direct&400|}}|{{:techtalk:evo:oil:94-03-primaryoil-refill.jpg?400|}}|
-===== Primary / Transmission Vent =====
+====== Primary / Transmission Vent ======
 [[techtalk:evo:oil06#primary_transmission_vent_hose|Click here]] to diagnose leaks from the vent hose.
@@ Line 53: / Line 53: @@
 If the oil separates on the vertical run BEFORE the hose loops down, it will fall back into the tranny/primary compartment. \\
 If the oil separates (or not) AFTER the hose loops back down, you'll end up with an apparent leak or drip from the hose. \\
 ==== 1986-1990 Vent ====
 **Hose and fitting**: \\
@@ Line 63: / Line 64: @@
 The vent line is run out "open ended" and not attached to anything on the other side. \\
 It appears there was a change in routing of the transmission vent line between 1986 and 1988. \\
-The 1986 FSM has an oil hose routing illustration showing the vent hose running slightly upward from engine and looping down behind the seat posts. \\
+The 1986 Dealer FSM has an oil hose routing illustration showing the vent hose running slightly upward from engine and looping down behind the seat posts. \\
-The 1988 and 1990 FSMs show a change in routing with the hose running up from the engine, over the top of and looping down the back of oil tank. \\
+The 1988 and 1990 FSM illustration shows a change to the original hose routing. \\
-The design change adds a longer vertical run between the motor and the loop in the hose where it heads back down. \\
+  * The hose runs up from the engine, wide sweep over the top of the starter. \\ Then over the top of and looping down the back of the oil tank to an unspecified point. \\ The design change adds a longer vertical run between the motor and the loop in the hose where it heads back down. \\
+However, service bulletin (M-993) dated March 30, 1990 was issued to re-route the ign wire away from both the transmission and oil tank vent lines. \\
+There is an illustration for 1990 models showing the trans vent coming up under the seat and looping down as in the 1991-1999 hose routing. \\
+So there was undoubtedly another change made for the factory transmission hose routing for 1986-1990 models. \\
+[[techtalk:miscres:miscres05#tsb_950-999|Click Here]] to go to the TSB page in the Sportsterpedia where you can download that bulletin. \\
 |  1986-1990 Transmission Vent Fitting ((photo courtesy of c3cycle.com, Link to site: https://www.c3cycle.com/))  |
 |{{:techtalk:evo:engmech:1986-1990_sportster_primary-transmission_vent_by_c3-cycle-tech.jpg?direct&300|}}|
 ==== 1991-1999 Vent ====
+**Vent hose and fitting**: \\
+Both the primary and tranny compartments vent through the one fitting on the top rear of engine behind the rear cylinder. \\
+The fitting (63547-89) for the vent hose is a 3/8" tube pressed into the case with a hose bibb on the outside end. \\
+An unspecified length of 3/8" reinforced rubber hose is attached to the fitting with a hose clamp. \\
+**Vent hose routing**: \\
+The vent line is run out “open ended” and not attached to anything on the other side. \\
+There is no mention of the transmission vent in the 1991-1999 FSMs. Furthermore, there is no illustration showing routing of the vent hose. \\
+However, there is an accepted method on the XLForum of running the hose that serves the purpose well. \\
+With the object being a fully open path without kinking the hose; \\
+  * The vent hose is raised up high under the seat, behind the battery box with a wide loop down toward the center of the seat downtubes. \\ Make sure that you manage a wide loop that will not eventually close the ID of the hose. \\ The hose is then left hanging low (tied off). Some run the hose end down behind the swingarm. \\ Some run the hose out past the center of the seat tubes, wedging it between the center rear tube and an adjacent L or R outside tube as in the pic below.
 |  1991-1999 Transmission Vent Fitting ((photo courtesy of c3cycle.com, Link to site: https://www.c3cycle.com/))  |
@@ Line 79: / Line 96: @@
 ==== 2000-2003 Vent ====
-**Routing the vent hose**: \\
+**Vent hose and fitting**: \\
-{{ pdf-bulletin:tsb1103.pdf |Click Here}} to download Service Bulletin M-1103, issued on 7-28-2000, regarding a change to the trans vent hose routing. \\
+Both the primary and tranny compartments vent through the one fitting on the top rear inside of the primary case. \\
-Route the vent hose behind the front battery bracket, then up and outboard of the frame tube. \\
+The fitting (63533-41A) is a 1/8"-27 NPT to 3/8" straight hose nipple installed horizontally off the rear of the primary case behind the starter. \\
+(same fitting is used on the oil pump return outlet on 1991-2003 Sportsters) \\
+An unspecified length of 3/8" reinforced rubber hose is attached to the fitting with a hose clamp. \\
+**Vent hose routing**: \\
+The vent line is run out “open ended” and not attached to anything on the end. \\
+Again, there is no mention of the transmission vent in the 2000-2003 FSMs and no illustration showing routing of the vent hose. \\
+Therefore there is no understanding of the original hose routing in early 2000 other than the service bulletin below. \\
+There was a service bulletin issued by the MoCo on 7-28-2000 detailing a change to the 2000 model vent routing at the factory. \\
+The new routing eliminates sags (low points below the fitting at the crankcase) in the hose where oil may collect and be forced out later. \\
+{{ pdf-bulletin:tsb1103.pdf |Click Here}} to download Service Bulletin M-1103 regarding the change to the trans vent hose routing. \\
+As per the service bulletin; \\
+  * Route the vent hose up, behind the front battery bracket keeping a long sweep below. \\ Attach the hose to the inboard side of the oil tank with the original T-clip up and then run the hose outboard of the frame tube. \\ If desired, you can also run the hose down behind the swingarm or pinched between the rear seat post tubes as in 91-99 models above. \\ That would alleviate the need to tie the hose to the oil tank if your tank doesn't have those provisions. \\ You also tie the hose to the frame crossmember under the seat.
 |  2000-2003 Primary Vent Fitting ((photo courtesy of c3cycle.com, Link to site: https://www.c3cycle.com/))  |
 |{{:techtalk:evo:engmech:2000-2003_sportster_transmission-primary_vent_by_c3-cycle-tech.jpg?direct&300|}}|
-|  2000 transmission vent hose. ((photo by BadHabit of the XLFORUM http://xlforum.net/forums/showthread.php?t=47744))  ||
+|  2000 transmission vent hose. ((photo by BadHabit of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-general-discussion-and-problems/28810-help-need-help-with-primary-vent-hose?t=47744))  ||
 |{{:techtalk:evo:oil:leaky_00_primary_vent_1_by_badhabit.jpg?direct&300|}}|{{:techtalk:evo:oil:leaky_00_primary_vent_2_by_badhabit.jpg?direct&300|}}|
 ==== 2004-Up Vent ====
+**Vent hose and fitting**: \\
+Both the primary and tranny compartments vent through the one fitting on the top rear of engine behind the rear cylinder. \\
+The fitting (63533-41A) is a 1/8"-27 NPT to 3/8" straight hose nipple installed vertically on top of the case directly behind the rear cylinder. \\
+(same fitting is used on the oil pump return outlet) \\
+The hose (63508-04) is short, preformed and is attached to the fitting with a hose clamp. \\
+**Vent hose routing**: \\
+Due to the shortness of the hose and it being preformed, there is no routing necessary. \\
+It is installed on the fitting with the open end facing the left side of the bike with the open end facing the rear of the bike. \\
+It is designed to run in front of the starter hidden between there and the rear cylinder. \\
+The hose end just peeks out the left side from behind the starter with a 90° bend on the end between the starter and back side of the primary case. \\
+Looking at the first pic below, you can see it is also formed to run at an up angle from the fitting before it turns down at the ending bend of the hose.
-|  2004 transmission vent hose. ((photo by npaisnel of the XLFORUM http://xlforum.net/forums/showthread.php?p=5846932#post5846932))  |  2005 transmission vent hose. ((photos by Yuma Rider of the XLFORUM http://xlforum.net/forums/showthread.php?t=37567&page=2))  ||
+|  2004 transmission vent hose. ((photo by npaisnel of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-engine-conversions/200486-crank-failure-and-killed-my-1275-hammer-build/page22#post4433814))  |  2005 transmission vent hose. ((photos by Yuma Rider of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-drivetrain/sportster-motorcycle-transmission-clutch-primary-secondary-drive/22759-primary-vent-hose-puking/page2?t=37567&page=2))  ||
 |{{:techtalk:evo:oil:2004_transmission_vent_by_npaisnel.jpg?direct&300|}}|{{:techtalk:evo:oil:leaky_05_primary_vent_2_by_yuma_rider.jpg?direct&300|}}|{{:techtalk:evo:oil:leaky_05_primary_vent_1_by_yuma_rider.jpg?direct&300|}}|
 \\
 [[:techtalk:menu|{{:techtalk:gototechnicalmenu.jpg|}}]]

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