2002 1800 clutch slipping


Information and questions on GL1800 Goldwings (2001-2017)
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hotwire
Posts: 56
Joined: Mon Sep 05, 2011 8:57 pm
Location: mosheim,tn
Motorcycle: 1985 gl1200 aspencade, sold
1988 gl 1500
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2002 1800 clutch slipping

Post by hotwire » Tue Jan 29, 2019 4:24 pm



Hey, guys, my 2002 1800 clutch is slipping, and don't know why. Is there anything I can look for, barring worn clutch plates. Bike has 47k miles, seems unusual to have that kind of wear already. I found a post which the writer even changed his clutch plates, and it still slipped. One reply was in the form of a link which I couldn't access, any ideas? Appreciate it, thanks.



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mterraci
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Location: Belleview, FL
Motorcycle: 2007 Honda Goldwing

Re: 2002 1800 clutch slipping

Post by mterraci » Tue Jan 29, 2019 5:43 pm

Would the kind of oil used have an effect on the clutch plates? My only thought...

DaveO430
Posts: 1097
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Location: Amity. Ar
Motorcycle: 2010 GL1800
2004 Suzuki DR200

Re: 2002 1800 clutch slipping

Post by DaveO430 » Tue Jan 29, 2019 8:34 pm

There are a few possibilities.
1, If it holds fine when cold but slips when it hot it could be the return hole in the master cylinder is plugged.
2, The clutch in an 1800 is oil pressure assisted, a bad clutch piston o-ring or bad regulator valve could cause it to slip.
3, not as likely but it could be worn out.
4, Like already mentioned, if the oil you use has friction modifiers it could cause slippage.

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GoldWingrGreg
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Motorcycle: 89 GL1500
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Re: 2002 1800 clutch slipping

Post by GoldWingrGreg » Tue Jan 29, 2019 11:38 pm

To keep clutch discs from turning blue from heat, be sure the clutch fluid is changed at least every 12k, don't use a synthetic oil, and no slow racing. This guys probably failed from never changing his clutch fluid, while others that I've replace have been caused by using a synthetic engine oil, and on my personal 2007, my clutch failed from competing against Howie in a slow race.
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hotwire
Posts: 56
Joined: Mon Sep 05, 2011 8:57 pm
Location: mosheim,tn
Motorcycle: 1985 gl1200 aspencade, sold
1988 gl 1500
2006 1300 VTX
2007 V Star 1100 Silverado, sold

Re: 2002 1800 clutch slipping

Post by hotwire » Sat Feb 09, 2019 7:13 pm

Thanks for your replies, guys. I just bought the bike about a month ago. Contacted P.O. about the oil, and he said it had Honda oil?? It did have a OEM Honda oil filter, but just for good measure, I changed oil and filter. I have pretty much always used Rotella T-4 dino in my previous wings, and never experienced any clutch problems. Oil is Jaso MA and MA-2 certified, has no friction modifiers. So, looked into the clutch fluid and master cylinder. The boot around the pushrod was dry rotted, pushrod brass bushing worn due to lack of lubrication, took slave cylinder out of bike and serviced it, checked the lifter rod in the engine, it moves good, re-installed slave, (confident it will be o.k.), currently waiting on my local mama Honda shop to receive new brass bushing and boot for the master cylinder. Cleaned out the master cylinder, had to blow out return spring and cup with compressed air to get it apart. Cleaned tiny return oil hole, M.C. is ready to go back on soon as parts get here, will keep you posted. P.S. Bike has a trailer hitch, so clutch could possibly be worn, but it usually takes a while riding before it offers to slip. Worn plates should almost show up at the start, I would think. Worse comes to worse, a tear down is in the future. And by the way, I've studied up on the clutch oil valve...... it seems like it's always something Honda does with every bike, and for the life of me, I don't know why...??? With a little extra effort, they could have put this valve on the outside of the engine for ease of service. Now if it sticks open, yeah, you guessed it, the engine comes out. It's a nice bike though, and will be a good ride as soon as I get everything ironed out. Thanks again, guys.

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AZgl1800
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Location: Lake Oologah Indian Territory USA
Motorcycle: '02 GL1800

Re: 2002 1800 clutch slipping

Post by AZgl1800 » Sat Feb 09, 2019 10:45 pm

hotwire wrote:
Sat Feb 09, 2019 7:13 pm
Thanks for your replies, guys. I just bought the bike about a month ago. Contacted P.O. about the oil, and he said it had Honda oil?? It did have a OEM Honda oil filter, but just for good measure, I changed oil and filter. I have pretty much always used Rotella T-4 dino in my previous wings, and never experienced any clutch problems. Oil is Jaso MA and MA-2 certified, has no friction modifiers.
We all have our favorite oil, recently I converted to Rotella T6, before that T5...
don't matter which you choose, just keep it changed regular with a new filter, and the bike will make 200k or 300k miles.

My previous bikes were GL1500s and I used Delo 400LE 10w40 in both of them.... the engines survived that treatment :mrgreen:


~John

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