sprag clutch


Information and questions on GL1100 Goldwings (1980-1983)
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newgoldwingrider
Posts: 31
Joined: Sun Sep 27, 2015 9:21 am
Location: blacklick pa
Motorcycle: 82 gold wing interstate

sprag clutch

Postby newgoldwingrider » Thu Jan 14, 2016 5:18 pm



can i tell if the sprag clutch is bad without pulling the motor like metal shavings were starter mounts or is there no way to tell without pulling motor?



newgoldwingrider
Posts: 31
Joined: Sun Sep 27, 2015 9:21 am
Location: blacklick pa
Motorcycle: 82 gold wing interstate

Re: sprag clutch

Postby newgoldwingrider » Tue Feb 02, 2016 10:21 am

can anyone please answer my question i need to know before riding season really starts

4wred
Posts: 151
Joined: Sat May 17, 2014 8:42 pm
Location: lancaster pa
Motorcycle: 82 goldwing aspencade
82 aspy turned naked (sold)
89 suzuki gsx 1100F

Re: sprag clutch

Postby 4wred » Tue Feb 02, 2016 10:32 am

What is the starter doing or not doing? Little more info might get some replies.

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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: sprag clutch

Postby WingAdmin » Tue Feb 02, 2016 11:25 am

The sprag clutch doesn't normally wear. The springs that push the sprags out are very small and exert a tiny amount of force. The sprags rotate in such a way that if the engine is running, there is no force against them - and they are bathed in oil. So there should be no wear.

What normally happens to the starter (sprag) clutch is that the sprags and their cavities get clogged up with sludge. That area of the engine gets very poor oil circulation, so sludge tends to collect there. If the sludge builds up enough, it can prevent the sprags from fully engaging the clutch wall - when this happens, you hit the starter button, you hear the starter spin, but the engine doesn't crank. Sometimes it will take a few tries before you can get it to catch. You might notice this happens more frequently in cold weather.

Fixing it is relatively easy - add half a can of Seafoam to your crankcase oil, start the engine (push start it if you can't get the starter to engage at all), then ride it around gently for an hour or so to get the oil good and hot. Then change the oil and filter. The Seafoam acts as a solvent, and will dissolve the sludge, freeing the sprags. You may have to do this procedure twice if they are really bad.

The first time I did this on my GL1100, I was astounded at the huge chunks of sludge that came slopping out of the oil drain.

newgoldwingrider
Posts: 31
Joined: Sun Sep 27, 2015 9:21 am
Location: blacklick pa
Motorcycle: 82 gold wing interstate

Re: sprag clutch

Postby newgoldwingrider » Sat Feb 06, 2016 8:50 pm

thank u so much everyone has told me thats what it is but no one said how unlikely it is for the sprag clutch to go bad so u juast made me feel a hole lot better thank u very much.

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RBGERSON
Posts: 2621
Joined: Tue Mar 09, 2010 7:57 am
Location: SCOTTSDALE, AZ
Motorcycle: 98 SE GL 1500
had every year from 75 to 83

Re: sprag clutch

Postby RBGERSON » Sun Feb 07, 2016 9:35 am

+1 on the above but it that doesn't solve the problem then..pulling the engine to get at the starter clutch is needed....OR... another cleaning method is out there..requires soem drilling of the case..and spraying cleaning fluid directly at the spring holes.
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HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB

petes1100xx
Posts: 1
Joined: Sun Nov 03, 2013 12:47 am
Location: San Diego, California
Motorcycle: 1982 Aspencade
1982 1100 GL
2002 CBR1100xx

Re: sprag clutch

Postby petes1100xx » Wed Feb 10, 2016 12:08 am

Hello all,
Same situation here! Only it occured after the seafoam treatment. The bike is a 82 standard that has sat for a couple of years. I thought that drilling an access hole in the side of the rear cover was an excellent fix, only to find there are no oiling holes in this bike :o . Not sure what my next move will be. BY the way I'm Pete, I have this naked wing, an 82 Aspencade, and the baby of the bunch a 2002 Blackbird. Great site here, I've been lurking for a while going through carbs, water pump, and numerous other little details on the two "rescue" wings




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