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Post by nitrogary on Mar 10, 2013 0:38:00 GMT -5
hi folks, I haven't been around in a long time but I could really use some advice. I currently have a friends Turista 300 and the reason I have it is that she heard some rattling/grinding noise from the trans area. I went to her house and test drove it, yup, really noisy down there. so now that its at my house, I have it on the table lift and I found the rear diff oil has a lot of silver metal in it. so I dismantled it as needed and found the diff gears to appear fine. so now im thinking she just never changed the rear diff fluid and it has 7k on it now. that said, Im still wondering where this crazy sound is coming from cause it sure doesn't look like the diff has suffered any "Damage". so I started to play with the Variator and it didn't feel "smooth" like all the other variators I have ever serviced felt like. I took the variator off and took the capture plate off and to my surprise, I found "GOO" on the plastic guides...and I mean a heavy thick sticky GOO !. well, i pulled the backing plate with the guides off and i have found this goo all over the inside of the Variator and its by no means spread evenly, some rollers are dry and some are covered in this crap. the crank seal is dry as a bone, there is no obvious source for this black sticky substance. some of the rollers were just flopping around in there and nothing could have been operating smoothly, i am fairly certain my noise is coming from this anomaly. could i get an opinion from you guys? my current plan is to clean everything up and see how it works after i get a new diff gasket which tore apart while removing the diff housing cover. btw, i personally had the 2007 Turista 260 and did not have this stuff in my variator. i am stumped as to what is going on
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Post by justbuggin2 on Mar 10, 2013 1:42:33 GMT -5
not sure about the goo but while the tranny box is open check the bearings
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Post by JR on Mar 10, 2013 2:26:04 GMT -5
I have heard of some of the larger scooters having a grease in variator.
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Post by payneib on Mar 10, 2013 2:30:17 GMT -5
It does kind of sound like the disgusting Chinese oil I pulled from my engine sump the day I got it............but with 7k on it.
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Post by JR on Mar 10, 2013 9:02:51 GMT -5
I changed the first three letters of your thread title. Yes I know it seems like it's picky but we just got a warning from the web host the other day for offending posts and anything even insinuating profanity is against the forum and Proboards rules.  . itistheride.boards.net/index.cgi?board=intro&action=display&thread=5Now on with your thread and I would do as you suggested and then see what happens. Thanks for your understanding.  JR |
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Post by nitrogary on Mar 10, 2013 10:56:55 GMT -5
I have heard of some of the larger scooters having a grease in variator. thanks for the reply doug...since your an admin around here, would you know of anywhere I could get more specific info on this issue ? im racking my brain to figure out why its there. the only thing I can think of is that it was a thinner substance at one time perhaps to lubricate the center crankshaft bushing of the variator, and in the 7k of service it has flung outwards and turned to a tar=like substance from the heat. either way its causing a problem for sure now. |
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Post by JR on Mar 10, 2013 12:03:16 GMT -5
I have heard of some of the larger scooters having a grease in variator. thanks for the reply doug...since your an admin around here, would you know of anywhere I could get more specific info on this issue ? im racking my brain to figure out why its there. the only thing I can think of is that it was a thinner substance at one time perhaps to lubricate the center crankshaft bushing of the variator, and in the 7k of service it has flung outwards and turned to a tar=like substance from the heat. either way its causing a problem for sure now. Since this is the linhai and I own two I'll tell you to clean out all the goo and leave it dry except for a small amount of grease on the center boss and a tiny touch on the side plate guides and this will allow the rollers to operate better and it to shift smoothly. The Chinese grease is like gum from the blue lagoon. Make sure the rollers are smooth and move in each track freely. My linhais are the 257/260 also and both had the bad grease in them. It not only makes the rollers gum up and shift poorly it oozes out in time and gets on your belt and causes more problems. The 300 linhai is identical except the bore. You'll also find that going to sliders makes it even better. I went to 12g sliders better take off and better top end and have over 12k on this scooter without any other variator issues. The other admin. JR |
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Post by nitrogary on Mar 10, 2013 12:23:28 GMT -5
thanks for the reply doug...since your an admin around here, would you know of anywhere I could get more specific info on this issue ? im racking my brain to figure out why its there. the only thing I can think of is that it was a thinner substance at one time perhaps to lubricate the center crankshaft bushing of the variator, and in the 7k of service it has flung outwards and turned to a tar=like substance from the heat. either way its causing a problem for sure now. Since this is the linhai and I own two I'll tell you to clean out all the goo and leave it dry except for a small amount of grease on the center boss and a tiny touch on the side plate guides and this will allow the rollers to operate better and it to shift smoothly. The Chinese grease is like gum for the blue lagoon. Make sure the rollers are smooth and move in each track freely. My linhais are the 257/260 also and both had the bad grease in them. It not only makes the rollers gum up and shift poorly it oozes out in time and gets on your belt and causes more problems. The 300 linhai is identical except the bore. You'll also find that going to sliders makes it even better. I went to 12g sliders better take off and better top end and have over 12k on this scooter without any other variator issues. The other admin. JR PERFECT....thank you so much for the confirmation and advice..... |
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Post by JR on Mar 10, 2013 12:29:47 GMT -5
You're very welcome. ;D
JR
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Post by wentwest on Mar 10, 2013 12:53:21 GMT -5
The Honda service manuals from the 80's specify a small amount of Lithium grease on the rollers before assembly. That turns into a black goo, mostly around the inside edge of the variator because the spinning force sends it there. Every variator I've opened has that goo in it.
As the variator gets dry over time the rollers do rattle, especially at idle or when throttling down. It's pretty normal, but does sound like a bucket of bolts.
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Post by nitrogary on Mar 10, 2013 16:08:14 GMT -5
The Honda service manuals from the 80's specify a small amount of Lithium grease on the rollers before assembly. That turns into a black goo, mostly around the inside edge of the variator because the spinning force sends it there. Every variator I've opened has that goo in it. As the variator gets dry over time the rollers do rattle, especially at idle or when throttling down. It's pretty normal, but does sound like a bucket of bolts. thats very interesting to hear...im gonna check into that for curiosity sake. but check this out, I have an 87 Yamaha jog...variator is bone dry, honda ruckus and metropolitan ( same engine ) both dry. my 2007 Turista 260 was dry in there, my Suzuki burgman 400 I currently ride was dry in there when I installed the new sliders. before my turista I had a CF moto 150cc and it was dry also. maybe the tech that put this motor together used too much or was not really caring about his job that day and just slopped a bunch of lube in there and let it go on down the assembly line. who knows at this point ! |
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Post by JR on Mar 10, 2013 17:41:58 GMT -5
I never have a rattle problem but again I use sliders and they are by their design and material self lubricating.
JR
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Post by JR on Mar 11, 2013 0:20:09 GMT -5
In fact I think it was a very old post from JR that I read about the goo in the variator.
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Post by rockynv on Mar 11, 2013 4:24:15 GMT -5
Could be a compound issue. Still may need a bearing in the gearbox. If all the noise goes away by servicing the variator I would drain the gearbox and flush it with brake cleaner (leaving it open for 30 minutes to dry out), refill with fresh gear lube, ride it for a few days and then drain and refill with a good grade synthetic gear lube to insure that there are not any metal particles left to take out the bearings and seals.
Gooey variators are found from time to time depending on who did the last service on them. Some don't understand the difference between smearing or coating with grease and packing it in.
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Post by nitrogary on Mar 11, 2013 8:02:42 GMT -5
Could be a compound issue. Still may need a bearing in the gearbox. If all the noise goes away by servicing the variator I would drain the gearbox and flush it with brake cleaner (leaving it open for 30 minutes to dry out), refill with fresh gear lube, ride it for a few days and then drain and refill with a good grade synthetic gear lube to insure that there are not any metal particles left to take out the bearings and seals. Gooey variators are found from time to time depending on who did the last service on them. Some don't understand the difference between smearing or coating with grease and packing it in. thanks for the tip. ill be taking the Variator to work today to clean it up in one of our parts washers, ill be bringing home a "sure shot" container of brake cleaner, ill can wash down the diff parts and then all I have to do is wait for the gasket kit to arrive and ill get it back together and test drive it. |
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