Very Loud Clacking noise from Left Head


Information and questions on GL1200 Goldwings (1984-1987)
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FreddyP
Posts: 4
Joined: Mon Jan 27, 2014 6:32 pm
Location: Albany, New York
Motorcycle: 1986 GL1200A Aspencade

Very Loud Clacking noise from Left Head

Postby FreddyP » Sun Feb 02, 2014 11:51 am



New Member..First Post.
I have just purchased a 1986 Aspencade that has been sitting for 10 years.
checked oil, And hooked up IV to run engine. Engine started easily.
Problem is that there is a very loud noise from the left rocker cover.
I removed rocker cover to find the rear cylinder intake rocker to be VERY loose.
Any suggestions on what may be the culprit? I'm thinking maybe a Collapsed lifter or a stuck valve?

Thanks in advance.



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86pearlblue
Posts: 100
Joined: Sat Sep 22, 2012 6:04 pm
Location: Hartford, Connecticut
Motorcycle: 1986 gl1200a

Re: Very Loud Clacking noise from Left Head

Postby 86pearlblue » Sun Feb 02, 2014 4:22 pm

it could be a clogged oil port. The valves self adjust with oil pressure. Try flushing the heads. You can get them off without removing engine.

FreddyP
Posts: 4
Joined: Mon Jan 27, 2014 6:32 pm
Location: Albany, New York
Motorcycle: 1986 GL1200A Aspencade

Re: Very Loud Clacking noise from Left Head

Postby FreddyP » Tue Feb 04, 2014 4:07 pm

86pearlblue wrote:it could be a clogged oil port. The valves self adjust with oil pressure. Try flushing the heads. You can get them off without removing engine.

Thanks!
What is the best way to flush them?
Compressed air?

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WingAdmin
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Posts: 17046
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: Very Loud Clacking noise from Left Head

Postby WingAdmin » Tue Feb 04, 2014 4:17 pm

FreddyP wrote:
86pearlblue wrote:it could be a clogged oil port. The valves self adjust with oil pressure. Try flushing the heads. You can get them off without removing engine.

Thanks!
What is the best way to flush them?
Compressed air?


You can try a simple Seafoam flush without even pulling the valve covers. Add 1/2 can of Seafoam to your oil, then run the engine gently for a good 50 miles. Drain that oil, and replace with fresh. It might take a couple of treatments, but chances are that it will clear out the sludge blocking that lifter.

FreddyP
Posts: 4
Joined: Mon Jan 27, 2014 6:32 pm
Location: Albany, New York
Motorcycle: 1986 GL1200A Aspencade

Re: Very Loud Clacking noise from Left Head

Postby FreddyP » Tue Feb 04, 2014 4:30 pm

Thanks for the input.
There are a few other issues that prevent me from taking it down the road yet. (No power to fuel pump)
Can I do the flush while on the center stand hooked to the IV?
Thanks again!

User avatar
WingAdmin
Site Admin
Posts: 17046
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: Very Loud Clacking noise from Left Head

Postby WingAdmin » Tue Feb 04, 2014 4:40 pm

FreddyP wrote:Thanks for the input.
There are a few other issues that prevent me from taking it down the road yet. (No power to fuel pump)
Can I do the flush while on the center stand hooked to the IV?
Thanks again!


It really needs to run and get quite hot, so if you are limited to the center stand, you'll want to hold the RPM up and let the fan cycle on and off at least a few times.

FreddyP
Posts: 4
Joined: Mon Jan 27, 2014 6:32 pm
Location: Albany, New York
Motorcycle: 1986 GL1200A Aspencade

Re: Very Loud Clacking noise from Left Head

Postby FreddyP » Wed Feb 05, 2014 6:45 pm

I have a drum of Mobil Engine cleaner. Basically its a high detergent engine oil designed for diesel engines.
I'll give that a try a couple times along with some Seafoam. Hopefully will do the trick.
I'll Let everyone know.




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