08-16-2016, 02:20 PM | #16 | |
Join Date: Sep 2015
Location: East Central Hellinois
Posts: 1,344
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Quote:
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************************************************** *** " Time you enjoy wasting, is not wasted." - John Lennon “I predict future happiness for Americans, if they can prevent the government from wasting the labors of the people under the pretense of taking care of them.” ― Thomas Jefferson "If you don't know where you're going any road will take you there" ....George Harrison song |
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08-16-2016, 02:56 PM | #17 |
Join Date: Sep 2014
Location: Arvada, CO
Posts: 1,004
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Yep, and Rojo_grande and his TT250
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Red 5 standing by! 2015 CSC red RX3 with 19" front wheel, Shinko 804/805, skid plate, tall seat, 13T/45T sprockets, progressive shock, Winyoochanok windshield, GENSSI LED headlight, SW-Motech tankbag, Shorai Lithium battery 2014 Ural Patrol |
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08-16-2016, 03:19 PM | #18 | |
Join Date: Sep 2014
Location: Arvada, CO
Posts: 1,004
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The way the OCS line is routed, it connects to the airbox below the air filter and points toward the rear of the airbox, in the opposite direction to airflow. Any vapors will be drawn up and into the air intake. If they make it that far without dripping back down into the crankcase, any oily contaminants or fuel should hit the back wall or bottom of the airbox and eventually collect in the airbox catchtube. My airbox catchtube has been clean so far, but when I clean my air filter this weekend, I'll inspect the airbox and look for oil residue on the surfaces.
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Red 5 standing by! 2015 CSC red RX3 with 19" front wheel, Shinko 804/805, skid plate, tall seat, 13T/45T sprockets, progressive shock, Winyoochanok windshield, GENSSI LED headlight, SW-Motech tankbag, Shorai Lithium battery 2014 Ural Patrol |
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08-16-2016, 03:31 PM | #19 |
Join Date: May 2007
Location: Warshington
Posts: 928
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I drilled a 1/16" hole in the black plug at the end of the drain tube so any liquid is constantly being drained out in very small quantities as I ride. Haven't looked much at it since. rj
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Live Zong, and Prosper |
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08-16-2016, 03:38 PM | #20 |
Join Date: Mar 2010
Location: Volcano, Ca
Posts: 7,112
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Up until EPA regs, all my old bikes just vented to the ground.
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"Light a fire for a man, and you heat him for a day. Light a man on fire, and you heat him for the rest of his life." 2007 Suzuki DRZ400S (SM convert) 2009 Q Link XP 200 1967 BSA B25 250cc Starfire 2022 Royal Enfield Interceptor 650 2023 Royal Enfield Scram 411 1948 Royal Enfield Model G 350 |
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08-16-2016, 04:18 PM | #21 |
Join Date: Feb 2016
Posts: 23
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Wow, great replies all. I will most likely give the direct line route a shot. I've been getting great advice from this site since I got Chang (bikes name) and is the first time I've posted a question. Awesome support, I just cant thank you all enough!
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08-17-2016, 11:03 AM | #22 |
Join Date: Oct 2015
Location: FL, GA, NC
Posts: 771
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An unexpected development on the OCS removal experiment.
I was wondering why the clear plastic tube has remained so clean. It turns out that when the engine is hot, the plastic tubing is heated (softens), and collapses at the bend. When it cools, it opens up again. I will replace the tubing today with some reinforced tubing. jb
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2016 Honda CB500F......2017 Triumph Street Twin 2014 XT 250........ |
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08-17-2016, 11:38 AM | #23 |
Join Date: Feb 2016
Posts: 23
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Found something interesting. In my original post I explained that the seal in the left crankcase cover was bad and oil was flowing into the overflow. It got to the point to where I noticed in the oil view window it had gone down significantly. After the seal was replaced the oil level has remained static. I have always wondered where that oil went, didn't seem as though the amount missing from the crank case was accounted for the amount draining from the overflow. This was a month and a half ago. After reading this thread I had seen mentioned some sort of view tube off the air box. I was trying to look in my air box to see if it had oil but really couldn't tell. Well... I found the view tube, removed it and 10oz of oily fuel smelling liquid drained from my air box. I will reiterate that my bike has been running great, no idle or dying issues. I am assuming that what was in my air box was the missing oil. Anyway, I rode my 20 miles into work today and still see the 2 inches of fluid in the overflow tube AND it looks like there is oily liquid in the air box view tube. I'm hoping its just residual fluid still in the air box and it will settle out as I ride and drain daily. Anyhoo, thats where I am at this point. I plan on riding and draining daily and if it does not improve I'll be contacting Gerry at CSC to see what his thoughts are on the matter. Thanks again for reading my long winded posts!!!
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08-17-2016, 01:08 PM | #24 |
Join Date: May 2007
Location: Warshington
Posts: 928
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JKR, if you see liquid in the ocs drain tube then that means the system is working as it should and nothing to worry about I would think ????? It's removing the moisture and taking it out of the motor. rj
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08-17-2016, 01:27 PM | #25 |
Join Date: Feb 2016
Posts: 23
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Right, it absolutely is doing its job. It's the amount of fluid that is a bit concerning as it completely fills up after 40-50 miles of regular riding. Also the other concern is how much fluid came out of my air box. I drained it thinking this fluid came from when i had the bad seal in the crank case cover replaced. But after my ride this morning I see fluid still coming out the air box. Hopefully its just residual from the previous issue but was hoping to see NO fluid from the air box after being drained.
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08-17-2016, 04:10 PM | #26 |
Join Date: Dec 2015
Location: CO
Posts: 1,525
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I would still slap a PCV on that crankcase vent/tube and be done with it... why the engine is fuel injected and they forgot a simple thing like 800 year old PCV technology is beyond me...
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"Think as you like... but this self proclaimed Professor is always right" - Buckshot "You never know what someone is hiding beneath their smile..." - NinjaTom - R.I.P. |
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08-17-2016, 05:17 PM | #27 |
Join Date: Feb 2016
Posts: 23
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Please forgive my ignorance. What is the PCV option?
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08-17-2016, 06:42 PM | #28 |
Join Date: Sep 2014
Location: Arvada, CO
Posts: 1,004
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The idea is to put a one-way check valve on the PCV line to the airbox.
As the piston moves up and down, it creates alternating positive and negative pressure in the crankcase. When the piston comes down, positive pressure helps push fuel and water vapor out of the crankcase. When it goes back up, negative pressure sucks some of that vapor back in. This may explain the condensation we see in the OCS. On the low pressure cycle, the vapors cool off, condensing before it reaches the airbox and dripping into the catch tube. A PCV check valve would only allow vapor to escape, hopefully preventing the low pressure and condensation. I need to find time to get to the auto parts store and look for a check valve that fits the line to the airbox.
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Red 5 standing by! 2015 CSC red RX3 with 19" front wheel, Shinko 804/805, skid plate, tall seat, 13T/45T sprockets, progressive shock, Winyoochanok windshield, GENSSI LED headlight, SW-Motech tankbag, Shorai Lithium battery 2014 Ural Patrol |
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08-17-2016, 09:03 PM | #29 | |
Join Date: Oct 2015
Location: FL, GA, NC
Posts: 771
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Quote:
When I replaced the hose today from the crankcase to the airbox, I put my finger over the end of the hose with the engine running and could feel nothing. Replaced the plastic hose with braided vinyl hose (1/2" ID) jb
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2016 Honda CB500F......2017 Triumph Street Twin 2014 XT 250........ |
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08-17-2016, 09:06 PM | #30 | |
Join Date: Oct 2015
Location: FL, GA, NC
Posts: 771
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Detours,
Nevermind, I re-read your post and all is clear! Quote:
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2016 Honda CB500F......2017 Triumph Street Twin 2014 XT 250........ |
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