I have a 1994 GL1500 SE which has served me well for many years. In 2014, I was forced to tear down the engine for a screeching noise that turned out to be a seized bearing. Every bearing had to be replaced due to the metal filings in them. I couldn't risk the chance of not cleaning them thoroughly enough and have a future repeat.
Just recently I'm getting a thumping noise coming out of the left valve cover. The timing of the thumping seems to correspond to with a valve timing as it increases during acceleration. I use 10-40W fully synthetic for where I live. There were no metal fillings in this recent oil change.
Does anyone know what that noise could be? Could one of the hydraulic valves be clogged?
Valve noise ?
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sledgehammer3
- Posts: 8
- Joined: Tue Nov 17, 2020 4:42 pm
- Location: Carmel,new york
- Motorcycle: 1994 GL1500 SE
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landisr
- Posts: 1021
- Joined: Tue Jul 28, 2009 12:18 pm
- Location: Gilbert, AZ
- Motorcycle: 1994 GL1500A 207k miles
2022 Royal Enfield Interceptor 650 6k miles
All miles are mine
Re: Valve noise ?
Just curious; is your alternator loose?
I'm not so sure about an inner child, but I have an inner idiot that surfaces every now and then.. 
Avatar taken at the Pine Breeze Inn, famous from Easy Rider.
Avatar taken at the Pine Breeze Inn, famous from Easy Rider.
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sledgehammer3
- Posts: 8
- Joined: Tue Nov 17, 2020 4:42 pm
- Location: Carmel,new york
- Motorcycle: 1994 GL1500 SE
Re: Valve noise ?
I'm fairly sure the issue is not the alternator. I can feel the tapping on the valve cover above the middle cylinder and, as I said; the tapping increases with acceleration. I want to ride but I'm not sure if I should. I have the capability to handle the issue if I knew what I was dealing with. I need help with this guys.