RainMaker
Member
Posts: 6626
VRCC#24130 - VRCCDS#0117 - IBA#48473
Arlington, TX
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« on: October 09, 2017, 04:12:39 PM » |
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My son's Tourer developed a sound today that sounds like a exhaust issue from the right side bank near the radiator. Checked out the caps on the vacuum lines and pulled the over over the cams to make sure the belts weren't slapping. No luck. Here's a clip of the sound. https://www.youtube.com/watch?v=So_wMA_v6kUIf you know what it is, or think you know, I'd appreciate the advice. RainMaker |
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 2005 BMW R1200 GS 2000 Valkyrie Interstate 1998 Valkyrie Tourer 1981 GL1100I GoldWing 1972 CB500K1 |
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Chrisj CMA
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« Reply #1 on: October 09, 2017, 04:17:05 PM » |
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Sounds like a bent valve to me. Did you do any work with the timing belts? When you had the cover off did you double check that all the timing marks lined up?
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« Last Edit: October 09, 2017, 04:24:16 PM by Chrisj CMA »
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Hook#3287
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« Reply #2 on: October 09, 2017, 04:39:24 PM » |
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Sounds like a bent valve to me. Did you do any work with the timing belts? When you had the cover off did you double check that all the timing marks lined up?
That was my thought also, but hope we're wrong. Have you tried the exhaust nuts? How about a par valve leak? In the vid it sounds like it could be an exhaust or vacuum leak. |
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indybobm
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« Reply #3 on: October 09, 2017, 06:41:59 PM » |
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Sounds awfully 'sharp' to be an exhaust leak. Pulling plug wires one at a time might show if it is an exhaust leak. Seems to run to good to be a bent valve or flat cam lobe. Have the valves been adjusted lately, maybe an adjuster loosened up. Have you pulled tbe valve cover? It does sound like a metal to metal slap.
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So many roads, so little time
VRCC # 5258
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indybobm
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« Reply #4 on: October 09, 2017, 06:50:21 PM » |
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I doubt of this is it but the last time I heard that noise a spark plug had backed out.
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So many roads, so little time
VRCC # 5258
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RainMaker
Member
Posts: 6626
VRCC#24130 - VRCCDS#0117 - IBA#48473
Arlington, TX
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« Reply #5 on: October 09, 2017, 09:18:18 PM » |
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No adjustments made in the last 20k to valves, belts, etc. Will check all the plugs. Has been desmogged and all caps and hoses are good.
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2005 BMW R1200 GS 2000 Valkyrie Interstate 1998 Valkyrie Tourer 1981 GL1100I GoldWing 1972 CB500K1 |
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Kunkies
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« Reply #6 on: October 10, 2017, 02:59:27 AM » |
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Suggest you start small and work your way up; evenly tighten your exhaust nuts on the right bank. . .
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Hooter
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« Reply #7 on: October 10, 2017, 04:27:35 AM » |
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Used get a sound like that from the old Chevy's while adjusting the lifters / rockers. If one was outa whack it made a simular sound. Gonna have to narrow down exactly where it's coming from first before you can fix it.
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« Last Edit: October 10, 2017, 04:54:00 AM by Hooter »
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You are never lost if you don't care where you are!
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Steel cowboy
Member
Posts: 1284
Moving ahead so life won’t pass me by.
Spring Hill, Fl.
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« Reply #8 on: October 10, 2017, 04:28:27 AM » |
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Did it Begin to tap while he was riding it Popping the valve cover will be an easy proceedure. Sounds like something loose.
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2001 black interstate
2003 Jupiter Orange wing
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indybobm
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« Reply #9 on: October 10, 2017, 05:47:25 AM » |
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Used get a sound like that from the old Chevy's while adjusting the lifters / rockers. If one was outa whack it made a simular sound. Gonna have to narrow down exactly where it's coming from first before you can fix it.
That is why I made the valve lash comment. Heard it many times on Chevy engines. |
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So many roads, so little time
VRCC # 5258
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RainMaker
Member
Posts: 6626
VRCC#24130 - VRCCDS#0117 - IBA#48473
Arlington, TX
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« Reply #10 on: October 10, 2017, 09:51:25 AM » |
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Yes. Was riding and then stopped at a stop sign and heard the noise. Brought it home immediately so very little riding with the sound. Starting with the exhaust now.
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2005 BMW R1200 GS 2000 Valkyrie Interstate 1998 Valkyrie Tourer 1981 GL1100I GoldWing 1972 CB500K1 |
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Paladin528
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« Reply #11 on: October 10, 2017, 10:01:27 AM » |
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pull the valve cover and check the gaps (ENGINE COLD). I set them on a warm engine once and something very similar to this was the result. it is possible a lock nut came lose on the tappet.
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Hooter
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« Reply #12 on: October 10, 2017, 02:51:52 PM » |
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Back in the day again....if I blew a header gasket sometimes it would make a simular noise. Good luck.
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You are never lost if you don't care where you are!
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longrider
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« Reply #13 on: October 10, 2017, 03:24:06 PM » |
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Way back shortly after I bought my first Valkyrie I ran into a fellow that had a valk break a valve spring. Just thinkin
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