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techtalk:ref:engmech05j [2020/10/08 00:15] hippysmack [Sifton Breather Valve] |
techtalk:ref:engmech05j [2020/10/12 00:23] hippysmack [Doherty Power Vent] |
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| Made in the USA by Doherty Machine. \\ | Made in the USA by Doherty Machine. \\ | ||
| Available for head or crankcase breathing engines, with kits for both Evo & Twin Cam engines. \\ | 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. \\ | + | **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) \\ | 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 http://xlforum.net/forums/showthread.php?t=146084&page=18))| | ||
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| * Kit includes: | * Kit includes: | ||
| * (2) 6061 billet aluminum machined bodies. | * (2) 6061 billet aluminum machined bodies. | ||
| - | * (2) Machined 304 Stainless Steel Bolts. | + | * (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. | * 4 Hi-Temp O-Rings. | ||
| * Also comes in other styles. | * Also comes in other styles. | ||
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| ====== Reed Valve by Heiden Tuning ====== | ====== Reed Valve by Heiden Tuning ====== | ||
| - | Developed by Heiden Tuning in Holland. \\ | + | Part number (15-0677) Developed by Heiden Tuning in Holland. \\ |
| - | Here is a link to view / purchase at [[https://www.mikesxs.net/blog/how-to-install-the-pcv-reed-type-valve/|Mikes SX.com]] \\ | + | 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. \\ | 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. \\ | But the reed prevents air re-entering quickly so a very small vacuum is created in the crankcase. \\ | ||
