Differences

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--- techtalk:ref:engmech05j [2020/10/07 22:57]
hippysmack [Doherty Power Vent]
+++ techtalk:ref:engmech05j [2023/12/22 01:50] (current)
hippysmack
@@ Line 22: / Line 22: @@
     * A 45 ° hose barb fitting was installed to connect a length of hose that leads back along the frame. \\ This way the oil mist gets directed out back and doesn't collect along the frame and engine.
-|Stock 77-78 tube removed, fitted w/ 1/8" 45° barb fitting. An external valve can be plumbed inline now.  ((photos by ericfreeman of the XLFORUM http://xlforum.net/forums/showthread.php?t=1928882))  ||
+|Stock 77-78 tube removed, fitted w/ 1/8" 45° barb fitting. An external valve can be plumbed inline now.  ((photos by ericfreeman of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/179539-foo-foo-breather-fitting-alternatives?t=1928882))  ||
 |{{:techtalk:ih:engmech:foofoo_vent_mod_pic1_by_ericfreeman.jpg?direct&300|}}|{{:techtalk:ih:engmech:foofoo_vent_mod_pic2_by_ericfreeman.jpg?direct&300|}}|
 ====== List of Aftermarket Breather Valves ======
-**Finding a better breather valve**: ((bunny32 of the XLFORUM http://xlforum.net/forums/showthread.php?t=15705&page=2)) \\
+**Finding a better breather valve**: ((bunny32 of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-motor-top-end/10013-blowby-article/page2?t=15705&page=2)) \\
 The breather valves that work best on crankcase breathers have several features: \\
   * Low-inertia, i.e. they don't take more than a breath to open and close.
@@ Line 43: / Line 42: @@
 The ball and spring valves will not be able to work fast enough to keep all the air out. \\
 When air is allowed to be drawn back into the engine, it creates a mass that must be compressed by the pistons on downstroke as it is being vented out. \\
-This robs some power and will cause the engine to work harder (creating more internal heat at higher RPM). ((Deimus of the XLFORUM http://xlforum.net/forums/showthread.php?t=67658&page=18)) \\
+This robs some power and will cause the engine to work harder (creating more internal heat at higher RPM). ((Deimus of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-bottom-end/35356-install-new-crankcase-vent-04/page18?t=67658&page=18)) \\
-Aftermarket PCV's: ((electronbee of the XLFORUM http://xlforum.net/forums/showthread.php?t=72099&highlight=reed+valve&page=10)) \\
+Aftermarket PCV's: ((electronbee of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-bottom-end/36799-installing-the-ultimate-crankcase-vent-%C2%93how-to%C2%94/page10?t=72099&highlight=reed+valve&page=10)) \\
   * Mercedes Benz P/N# 271-018-00-29 ~$13.
     * Reed type PCV valve. Fast acting. Used for their C 230 Kompressor engine.
@@ Line 55: / Line 54: @@
     * Makes a clicking noise during operation.
-|  Here is a 2-stroke reed valve. ((photo by norseXL of the XLFORUM http://xlforum.net/forums/showthread.php?t=1386341&highlight=reed))  |
+|  Here is a 2-stroke reed valve. ((photo by norseXL of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/frame-mount-evo-sportster-talk-1986-2003-models/131026-my-mods-to-venting-and-oiling?t=1386341&highlight=reed))  |
 |{{:techtalk:ref:engmech:reed_valve_by_norsexl.jpg?direct&300|}}|
-|  Mercedes Benz P/N# 271-018-00-29 ((photo by electronbee of the XLFORUM http://xlforum.net/forums/showthread.php?t=72099&highlight=reed+valve&page=10))  |  Reed Valve ((photo by Bluto of the XLFORUM http://xlforum.net/forums/showthread.php?p=5761290#post5761290))  |  Doherty Power Vent ((Photo by goblin_dust of the XLFORUM http://xlforum.net/forums/showthread.php?t=72099&highlight=wet+sumping&page=23))  |
+|  Mercedes Benz P/N# 271-018-00-29 ((photo by electronbee of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-bottom-end/36799-installing-the-ultimate-crankcase-vent-%C2%93how-to%C2%94/page10?t=72099&highlight=reed+valve&page=10))  |  Reed Valve ((photo by Bluto of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-bottom-end/197307-sportster-crankcase-pressure-engine-breathing-wetsumping-and-mods/page2#post4317506))  |  Doherty Power Vent ((Photo by goblin_dust of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-bottom-end/36799-installing-the-ultimate-crankcase-vent-%C2%93how-to%C2%94/page23?t=72099&highlight=wet+sumping&page=23))  |
 |{{:techtalk:ref:engmech:mercedes_benz_pcv_valve_by_electronbee.jpg?direct&300|}}|{{:techtalk:ref:engmech:reed_valve_by_bluto.jpg?direct&300|}}|{{:techtalk:ref:engmech:deimus_mod_2_by_goblin_dust.jpg?direct&300|}}|
@@ Line 66: / Line 65: @@
   * Sifton Crankcase Breather ((https://www.ebay.com/itm/SIFTON-CASE-BREATHER-VENT-PCV-VALVE-HARLEY-EVO-SHOVELHEAD-PANHEAD-TWINCAM-KRANK/253213372444?epid=1665559744&hash=item3af4b1701c:g:F4cAAOSwzrxUuDhJ)) \\ This appears to be a cheaper version of the Hayden Crankvent also with an umbrella valve installed inside. \\ It is, however, a one time use part as it cannot be taken apart to replace the umbrella valve.
-Aftermarket PCV's: ((electronbee of the XLFORUM http://xlforum.net/forums/showthread.php?t=72099&highlight=reed+valve&page=10)) \\
+Aftermarket PCV's: ((electronbee of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-bottom-end/36799-installing-the-ultimate-crankcase-vent-%C2%93how-to%C2%94/page10?t=72099&highlight=reed+valve&page=10)) \\
   * Mercedes Benz P/N# 271-018-00-29 ~$13.
     * Reed type PCV valve. Fast acting. Used for their C 230 Kompressor engine.
@@ Line 86: / Line 85: @@
 It uses (1) 91-03 umbrella valve in a custom sealed 2-piece compartment. The umbrella is replaceable by unscrewing the 2 body halves. \\
-|Hayden KVP38 breather valve, used with the \\ [[techtalk:ref:engmech05d|Deimus Mod]] (cam chest breather conversion). ((photo by 60Gunner of the XLFORUM http://xlforum.net/forums/showthread.php?p=5763918#post5763918))|  Hayden Krankvent installed \\ (Deimus mod also) ((Photo by goblin_dust of the XLFORUM http://xlforum.net/forums/showthread.php?t=72099&highlight=wet+sumping&page=23))  |
+|Hayden KVP38 breather valve, used with the \\ [[techtalk:ref:engmech05d|Deimus Mod]] (cam chest breather conversion). ((photo by 60Gunner of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-general-discussion-and-problems/197471-crankcase-breather-mod#post5763918))|  Hayden Krankvent installed \\ (Deimus mod also) ((Photo by goblin_dust of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-bottom-end/36799-installing-the-ultimate-crankcase-vent-%C2%93how-to%C2%94/page23?t=72099&highlight=wet+sumping&page=23))  |
 |{{:techtalk:ref:engmech:deimus_mod_8_by_60gunner.jpg?direct&300|}}|{{:techtalk:ref:engmech:deimus_mod_2_by_goblin_dust.jpg?direct&300|}}|
-|  Hayden breather opened up. ((photos by leucadiaGuit of the XLFORUM http://xlforum.net/forums/showthread.php?t=2004869 cropped by Hippysmack))  ||
+|  Hayden breather opened up. ((photos by leucadiaGuit of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/187973-oil-gremlin-help?t=2004869 cropped by Hippysmack))  ||
 |{{:techtalk:ref:engmech:hayden_krankvent_3_by_leucadiaguit_-_cropped.jpg?direct&300|}}|{{:techtalk:ref:engmech:hayden_krankvent_2_by_leucadiaguit_-_cropped.jpg?direct&300|}}|
@@ Line 106: / Line 105: @@
 ====== Doherty Power Vent ======
+Made in the USA by Doherty Machine. \\
+Available for head or crankcase breathing engines, with kits for both Evo & Twin Cam engines. \\
+**Doherty Power Vents are no longer being made by Doherty Machine**. ((http://www.cas4.com/engine/engine-crankcase-breathers-breather-valves2.html)) \\
+However, there is another company making this product (see Doherty Style Breather below) \\
+  * CNC-machined T-6 billet aluminum
+  * Show-quality polished finish
+  * One-way valve prevents backflow
+  * Kits include machined bolts and plastic washers for a tight seal
+  * Work with most CV carb and EFI applications
+  * Accepts 1/8” NPT fitting
+  * Sold in pairs
+  * Made in the U.S.A.
+  * Fitment
+    * DS21101123, 93-99 80” Evolution
+    * DS21101122, 99-08 Twin Cam
+    * DS21101124, 91-08 XL
+    * DS289600, 70-92 80” Big Twin
-|Doherty Power Vents with the line routed up then \\ down and attached to the bottom of the frame. ((photo by RIORoosen of the XLFORUM http://xlforum.net/forums/showthread.php?t=146084&page=18))|
+|Doherty Power Vents with the line routed up then \\ down and attached to the bottom of the frame. ((photo by RIORoosen of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-intake-and-exhaust/sportster-motorcycle-air-intake-carburetor-efi-fuel-and-exhaust/44522-show-me-your-non-stock-breather-systems/page18?t=146084&page=18))|
 |{{:techtalk:ref:engmech:breather_mod_by_rioroosen.jpg?direct&300|}}|
-====== Doherty Power Vent Style Breather ======
+====== Doherty Style Breather ======
+These are made In the USA By Speed Dealer Customs.
+[[https://speeddealercustoms.com/collections/engine-intake-fuel-system/products/smooth-doherty-style-head-breather-kit-custom-choppers|Click here to go to their website]]. \\
+  * Features:
+   * Internal rubber umbrella valve
+   * Billet aluminum.
+   * Reduce blow by oil mist.
+   * Decrease crankcase pressure.
+   * Stop gasket leaks.
+   * Will fit 1993 and up Evo type Harley motors.
+   * Knurled bodies.
+   * Available in 2 Finishes; black anodized or polished.
+   * Kit includes:
+     * (2) 6061 billet aluminum machined bodies.
+     * (2) Machined 304 Stainless Steel Bolts. \\ (either 1/2"x13 or 3/8"x16 thread patterns) and each 1-5/16" long.
+     * 4 Hi-Temp O-Rings.
+   * Also comes in other styles.
+   * Will not fit 98-01 magnetti mareli fuel injection and '08 and later FLH models.
+====== Reed Valve by Heiden Tuning ======
+Part number (15-0677) Developed by Heiden Tuning in Holland. \\
+It is sold for Yamahas out of Tampa, FL. Here is a link to view / purchase at [[https://www.mikesxs.net/blog/how-to-install-the-pcv-reed-type-valve/|Mikes SX.com]] \\
+This reed type was Positive Crankcase Ventilation valve hooks to the engine top breather vent and allows expelled air out. \\
+But the reed prevents air re-entering quickly so a very small vacuum is created in the crankcase. \\
 ====== Sifton Breather Valve ======

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