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12-08-2015, 08:52 PM | #1 |
Join Date: Sep 2014
Location: Arvada, CO
Posts: 1,004
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A pop, a rattle and a surprise!
I was on a ride last week when I heard a pop and a rattle in the engine. I wasn't far from home, so I turned around and parked the. When I found time to pull things apart, I figured out what happened.
On the intake valve side, the adjuster locknut had come loose. Worse, the foot at the bottom of the valve adjuster had broken off and both of them were bouncing around under the valve cover! Luckily I was able to fish them both out with a magnet and there doesn't seem to be any other damage. Apparently, I didn't tighten the locknut enough during my last valve job and it worked itself loose. Then the adjuster backed itself out far enough to pop the foot off.
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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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12-08-2015, 09:04 PM | #2 |
Join Date: Sep 2014
Location: Arvada, CO
Posts: 1,004
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Anyway, I called Gerry today and asked him how to repair it. I was worried I might have to remove the engine and take off the top end to take off the valve rocker ... which kind of scares me!
Luckily, he tried out a few ideas on his bench engine and gave me a workaround. The valve adjuster is actually two parts: a threaded bolt and a foot, which fit together like a ball and socket. Gerry is going to send me the adjustment screw and foot separated (at no charge ... thanks CSC!). I'll screw in the adjuster and hold the foot in place until it pops in. Then I'll adjust the valves like normal, and I'll be back on the road.
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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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12-09-2015, 01:10 AM | #3 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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CSC has earned every future sale with awesome service like that!
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Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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12-08-2015, 11:47 PM | #4 |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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Thanks for posting the warning, amigo. We should always make sure to tighten the nut on the valve tappet. I'm glad your engine didn't sustain any more damage.
Also, thanks for letting us know about the design of the tappet, and the usual, excellent customer service from CSC.
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Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894 |
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12-08-2015, 11:57 PM | #5 |
Join Date: Jul 2015
Location: Milpitas, CA. USA
Posts: 775
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Good info Detours, thanks for sharing.
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12-09-2015, 01:59 AM | #6 |
Join Date: Sep 2014
Location: Arvada, CO
Posts: 1,004
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Yeah, definitely double-check the lock nut. I'm sure I tightened it, but obviously not enough.
CSC offers really great service. Gerry spent time on the phone with me making sure he understood the exact issue. Then we texted lots of pics back and forth and he gave me the procedure and then talked me through it on the phone to make sure everything was clear. It's a rare shop that cares whether you understand the issue and how to fix it ... then send the part for free even though it was most likely my fault.
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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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12-09-2015, 08:09 AM | #7 | |
Join Date: Oct 2015
Location: White Mtns. NH
Posts: 488
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Quote:
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2016 Versys 650 LT, 2015 RX3 Red, 2011 Ural GearUp, |
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12-09-2015, 08:43 AM | #8 |
Join Date: Aug 2015
Location: Upstate NY
Posts: 343
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Thanks for sharing detours, all of us will probably tighten than locknut a bit more next check!
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12-09-2015, 08:54 AM | #9 |
Join Date: Oct 2015
Location: White Mtns. NH
Posts: 488
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On my Ural I change the nuts to a self locking nuts as a precaution because guys had nuts back off also. Maybe the same is doable on the RX3
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2016 Versys 650 LT, 2015 RX3 Red, 2011 Ural GearUp, |
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12-09-2015, 11:13 AM | #10 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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Excellent tip! What type of locking nuts did you use on the Ural? I've thought about that in the past, but wondered if the nylon in a typical Nyloc nut might melt. I also considered a distressed thread nut, like you find in automotive applications. I'm very curious about what worked for you.
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Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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03-19-2016, 06:54 PM | #11 | |
Join Date: Jul 2015
Location: Tigbauan, Iloilo City, Panay Island, Philippines
Posts: 177
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Quote:
My dealer Motorstar didn't have the bearings in stock and could not locate or "order" them. They provide no service and only aggravation.
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Riceburner Robin / Face Hunter I Medical Mission Matters www.medicalmissionmatters.org |
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12-09-2015, 07:12 AM | #12 |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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Amen on all points, mate.
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Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894 |
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12-09-2015, 09:19 AM | #13 |
Join Date: Nov 2014
Posts: 159
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Thanks for the update. Glad more damage wasn't done! That part could have bounced down the cam chain path and done a lot more damage. If the lock nut came looses its likely the adjuster backed off until the ball/foot could turned sideways and get knocked off its ball mount. And another fine example of CSC's excellent customer service!
Also this I the first issue I've seen posted to any forum about any internal engine issue at all with the RX3! Well this and my clutch but that was all my fault and at some level a clutch is a wear item. |
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12-09-2015, 09:31 AM | #14 |
Join Date: Jul 2009
Posts: 216
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Thanks for that heads-up.
Dan K.
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Dan Kearney - Black Hawk, Colorado, USA Dan's Motorcycle Blog - "Lost? I'm not lost. I'm just exploring. . ." |
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12-09-2015, 10:18 AM | #15 |
Join Date: Nov 2014
Posts: 159
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Detours, how many miles since your last valve adjustment?
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