Intermittent Valve Chatter

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I agree with John. Mine started a few weeks ago as I was finishing a 900 mile round trip. About 50 miles from home @ 60 mph was the first time I heard that "brrrrrrrrrrp" sound. Just like hockey, mine happens so fast and ends just as fast that you can't react. Bought the Seafoam and put it right in there in the store parking lot, then took off on a 90 mile ride. Noticed that there was no chatter while riding. But it's so intermittent that I need to really ride a ways to be sure. Tomorrow I'll do another circuit then change out the oil/filter with Rotella. The real test will be Tuesday evening when I leave to go back offshore. It's a 435 mile ride to the office. Unfortunately, I'm without internet access on the boat and gone for 28 days so a final report will have to wait till I get back in a month. BTW....I went to a fight one time and a hockey game broke out! Ba da Boom!

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OK..... just came back from a short ride of about 20 miles in stop n go traffic on the beach. Two "brrrrrp's". One in 2nd gear accelerating out of a merge lane and another really short "brrrp" at 60 mph.

Maybe it's foaming oil.... don't know.... or I haven't given the Seafoam time enough to work. I've only covered about 120 miles since putting it in.

Nonetheless, I HAVE to do the oil change today because I leave for offshore tomorrow evening. Gonna make sure it's no more than capacity or a little less and see what happens. Gonna use Rotella 15W40.

Will report back in about a month! LOL.... but at least I get to fish 100 miles offshore and get paid for doing it!

God Bless all and Ride Safe!

:action: :waving:

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Had the same problem: intermittent lifter noise on the right side. I used some gunk engine flush and it helped. The noise went away for a long while but some times returns briefly, but never as pronounced as it use to be. You can read this link: http://www.goldwingfacts.com/forums/forum1/65387.html. I use Mobile 1 20/50 synthetic and change it once a year. Just about everyone that complains about this problems seems to indicate it is on the right side. My opinion is the bike leans left on the side stand, so the right side drains more thoroughly allowing varnish to build up. The left side hold the oil and stays wet, so varnish does not collect. One person said a mechanic suggested filling the crank case with transmission fluid (high detergent) and let it set for awhile, drain and refill with oil. Either it is foaming oil, which I seem to doubt as most modern oils are pretty good, or it is varnish build up reducing oil pressure to the lifter at moderate speeds. I also assume the oil pressure is lower a lower rpms. If I open the throttle the noise usually ceases. This noise has been present now foe 15 years or so. Present mileage is 83,000. I am not going to worry about it as long as it is intermittent.

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Could not figure it out. Tried the Seafoam in the oil.... no improvement. Ran some ATF thru the crankcase, changed oil.... no improvement. The
"brrrrrrrrrppppp" continues.

So today I pulled that valve cover - first time since replacing the head in June. Sprayed the entire assembly really good with carb cleaner - a whole can's worth. While in there figured I would retorque the head bolts and just generally check everything out. Found the bolt for the anti-foaming chamber on the #2 cylinder was loose. I wonder if I forgot to tighten it when I charged the anti-foaming chambers when I replaced the head. Anyway, I charged both chambers with 30W and tightened them down. Went for a short ride and no "brrrrrrpppp". Too early and not enough miles to be sure, but I bet the fact that the anti-foaming chamber not being tightened down was allowing the oil to foam in that cylinder and causing that chatter.

Hope so anyhow.