Engine just started knocking


Information and questions on GL1000 Goldwings (1975-1979)
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Johnny Irish
Posts: 18
Joined: Sun Aug 19, 2012 10:14 pm
Location: Staten Island, N.Y. 10301
Motorcycle: 1978 GL1000. 1991 cb 750

Engine just started knocking

Post by Johnny Irish »



I'm hoping it's not as bad as Im thinking been having trouble with this bike but didn't think there was anything Wrong with the motor 35000 miles on her noticed the knocking today got worse after oil change more noticeable idling.? What's the verdic


dkorody
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Joined: Thu Jul 07, 2011 1:09 am
Location: weirdale saskatchewan Canada
Motorcycle: 83 wing interstate

Re: Engine just started knocking

Post by dkorody »

what kind of oil do you have is it sythetic or normal oil?
Johnny Irish
Posts: 18
Joined: Sun Aug 19, 2012 10:14 pm
Location: Staten Island, N.Y. 10301
Motorcycle: 1978 GL1000. 1991 cb 750

Re: Engine just started knocking

Post by Johnny Irish »

Not sure what came out put 10 40 reg in ?
Johnny Irish
Posts: 18
Joined: Sun Aug 19, 2012 10:14 pm
Location: Staten Island, N.Y. 10301
Motorcycle: 1978 GL1000. 1991 cb 750

Re: Engine just started knocking

Post by Johnny Irish »

Was just thinking I add normal to it before oil change it was low so I added about 2 qt to it do you think I shoul drain it and try sinthtic
Johnny Irish
Posts: 18
Joined: Sun Aug 19, 2012 10:14 pm
Location: Staten Island, N.Y. 10301
Motorcycle: 1978 GL1000. 1991 cb 750

Re: Engine just started knocking

Post by Johnny Irish »

the vacum hose on top of motor came off a mechcanic said i prob thru the timing off
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dingdong
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Motorcycle: 1976 gl1000
1993 gl1500A
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Re: Engine just started knocking

Post by dingdong »

Can you describe the knock a little better? Is it just there at idle? Does it completely go away at higher rpm? Where is the vacuum line that came loose? There are no vacuum lines that will throw the timing off. Timing is completely mechanical. How much oil are you adding when you do an oil change? The type of oil you use isn't likely to cause a knock. Regular dino oil or synthetic. Don't waste your money until you determine what is causing the knock. Does the knock seem to be coming from the right or left side? I'm wondering if the "knock" might be the timing chain slapping??? We really need more information.

Tom
Johnny Irish
Posts: 18
Joined: Sun Aug 19, 2012 10:14 pm
Location: Staten Island, N.Y. 10301
Motorcycle: 1978 GL1000. 1991 cb 750

Re: Engine just started knocking

Post by Johnny Irish »

Hi Tom thanks for taking the time to help the knock is coming from the left side not sure if it completely goes away at higher RPms but does get less I'm not even close to a mechanic as you can tell just started going over the engine with clymer manual found out I have no breather collecter?? Gonna order one now guess I'm getting a crash coarse in motorcycle it ran great in the beginning prob started with carbs overflowing rusty tank did the vinegar thing changed gas filter anyway I broke down yest starter not turning maybe was damaged from previous pron with ground connector the wire on the oil sender is exposed where it connects to rubber mount on engine gonna try to get her started and get it to a shop by me and go over the whole bike don't think I can do much more ?? Don't want to do anymore damage it's a great looking bike and like I said it was running pretty good not long ago
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motorhead1977
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Location: Albany, New York
Motorcycle: 2018 BMW R1200 RT, 2015 Ducati Scrambler 800, 1987 VFR 400R, 1986 VFR 700F Gone: 2009 GL 1800 ABS

Re: Engine just started knocking

Post by motorhead1977 »

John, Get yourself a mechanic's stethoscope and use it to find where your noise is coming from. I had a MC engine that sounded for all the world like it had a bad wrist pin knock and once I put the stethoscope on it I was able to pin point the location of the knock - turned out to be a worn rocker arm - cheap fix rather than a complete engine tear down. One of the best tools you can have and they are cheap to buy! Good luck
"When fascism comes to America it will be draped in the flag and carrying the cross." Sinclair Lewis
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WingAdmin
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Re: Engine just started knocking

Post by WingAdmin »

motorhead1977 wrote:John, Get yourself a mechanic's stethoscope and use it to find where your noise is coming from. I had a MC engine that sounded for all the world like it had a bad wrist pin knock and once I put the stethoscope on it I was able to pin point the location of the knock - turned out to be a worn rocker arm - cheap fix rather than a complete engine tear down. One of the best tools you can have and they are cheap to buy! Good luck
I agree - a cheap diagnostic tool, and I have used it SO MANY times to figure out what is going wrong in an engine:

http://www.harborfreight.com/mechanics- ... 41966.html


Johnny Irish
Posts: 18
Joined: Sun Aug 19, 2012 10:14 pm
Location: Staten Island, N.Y. 10301
Motorcycle: 1978 GL1000. 1991 cb 750

Re: Engine just started knocking

Post by Johnny Irish »

Thanks for the info I just rebuilt the carbs there not back on the bike yet I musts been crazy to take on this job but I did anyway I might be donating this wing for spare parts soon lol the Ranndak DVD was awesome but my lack of experience might have done me in well see got some other issues I also found out I'm missing some important bolt! Like a motor mount bolt is not there and the other one is bearly catching do good thing I broke this Nike down anyway I'm just starting my Goldwing adventure not going anywhere I'll keep posting prob start saving for the next one looking at the 90s
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motorhead1977
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Location: Albany, New York
Motorcycle: 2018 BMW R1200 RT, 2015 Ducati Scrambler 800, 1987 VFR 400R, 1986 VFR 700F Gone: 2009 GL 1800 ABS

Re: Engine just started knocking

Post by motorhead1977 »

John,

I have an extra mechanic's stethoscope. Message me your mailing address and I will send it to you as a "welcome to the wonderful world of wingers" gift! Project on dude.
"When fascism comes to America it will be draped in the flag and carrying the cross." Sinclair Lewis
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Fred Camper
Posts: 1339
Joined: Sun Aug 16, 2009 9:15 pm
Location: Metro Detroit, MI
Motorcycle: 1977 GL1000, 1976 LTD GL1000

Re: Engine just started knocking

Post by Fred Camper »

These bike reward your effort well. Always proves worth the effort in just one or two sweet rides.
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El Taco
Posts: 101
Joined: Thu Sep 27, 2012 3:06 pm
Location: Alamogordo, New Mexico
Motorcycle: 1977 GL1000

Re: Engine just started knocking

Post by El Taco »

Has anyone considered clutch chatter? Carb imbalance? This is my first Wing, but all the other SOHC4s I've owned would knock pretty convincingly if the carbs were out of sync. It does it worse at idle. Cruising makes no noise at all.

A scope may indicate noise around the clutch basket or primary chain.
Johnny Irish
Posts: 18
Joined: Sun Aug 19, 2012 10:14 pm
Location: Staten Island, N.Y. 10301
Motorcycle: 1978 GL1000. 1991 cb 750

Re: Engine just started knocking

Post by Johnny Irish »

Hi My Goldwing is up and running thanks for all the help I couldn't get the new starter in by myself took it to a local guy took three people to get it in two to lean it over far enough to get the gear to swing
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Fred Camper
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Location: Metro Detroit, MI
Motorcycle: 1977 GL1000, 1976 LTD GL1000

Re: Engine just started knocking

Post by Fred Camper »

When I did my starter the tutorial I used made it very clear to have it on the side stand for the installation and that move the gear enough. Glad to hear you got yours in, now if we can just get this pesky snow to melt...
Johnny Irish
Posts: 18
Joined: Sun Aug 19, 2012 10:14 pm
Location: Staten Island, N.Y. 10301
Motorcycle: 1978 GL1000. 1991 cb 750

Re: Engine just started knocking

Post by Johnny Irish »

Hey Guys was out today on Staten Island NY 57 degrees in jan ? Anyway that knocking was being caused by adding to much oil the carb rebuild was not a complete success but for my first time I was happy to see her run lol next time gonna give it to my mechanic Dan .
Johnny Irish
Posts: 18
Joined: Sun Aug 19, 2012 10:14 pm
Location: Staten Island, N.Y. 10301
Motorcycle: 1978 GL1000. 1991 cb 750

Re: Engine just started knocking

Post by Johnny Irish »

Hey All Had her out last Sunday was running great weather here in NY is not too cold the bikes been in a garage all winter somewhat heated so I never had to winterize just made sure to run her once a week I'm trying to figure out how to post a picture of her if anyone can tell me how it's done ? I also bought a. 750 Nighthawk over the winter 1991 runs great picked it up for 1500$ for a daily commute


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