Looking for some feedback. 
|
| Moderated by: zac41, trailrider2, QUADAHOLIC, OSOKILL, MtnOuty, fmj40 |
|
|||||||||||||||
| visco lok - Can-Am / BRP - ATVs - Can-Am Headquarters ...Aurora Wheelers ATV Forum | ||||||||||||||||
| Author | Post | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ||||||||||||||||
|
enewman Member
|
I have been reading what everyone has to say about the visco diff. I found where some people have been trying to figure out how to improve it. I found the company that makes the visco lok and on there web page states the diff is tuneable by changing the viscosity of the fluid in the pump section or the clutch disk. Has any body just tried this. Just asking
|
|||||||||||||||
| ||||||||||||||||
| ||||||||||||||||
|
camlaw Member 
|
what's the company's name that makes it ?
____________________ 07 800 xt,27 xtr's on 14"ss 112's, 28" outlaws on type-7 machined. east coast snorkels, 2" hi-lifter, hpg front shocks, pennland slip on. mudded and modded. |
|||||||||||||||
| ||||||||||||||||
| ||||||||||||||||
|
Kevin Z Member
|
GKN Driveline
____________________ Kevin Z's Outlander 800 Max New pictures |
|||||||||||||||
| ||||||||||||||||
| ||||||||||||||||
|
QUADAHOLIC formerly quadzilla 
|
enewman wrote: I have been reading what everyone has to say about the visco diff. I found where some people have been trying to figure out how to improve it. I found the company that makes the visco lok and on there web page states the diff is tuneable by changing the viscosity of the fluid in the pump section or the clutch disk. Has any body just tried this. Just asking I think you have to pull and open the diff to get to the "visco" part, seems like alot of work for the average rider to do just to get it to work a little quicker. It would be nice to know what to change the fluid to, to get-r-done tho.
____________________ 07-650 Outy Max XT Ricochete ~ Crutchfield 2+1 PRP Stabilizer ~ 25" Bighorn's Kewltek brakes ~ Alumatech Guards Fasst bars ~ Rox risers ~ TC Duel Gasser plus a whole lot of little extra "custom touches" This site is worth a million Please Donate!! |
|||||||||||||||
| ||||||||||||||||
| ||||||||||||||||
|
trailrider2 General Maintenance Division 
|
This would be interesting to know but as stated already, no easy task. I like to think I'm pretty good with a wrench but messing with that would have me a bit on the nervous side. 
____________________ Pain is weakness leaving the body. |
|||||||||||||||
| ||||||||||||||||
| ||||||||||||||||
|
enewman Member
|
according to the dealer here there is not much to the visco, but not sure I'm trying to find one I can tear apart and work on now. I'm sure its not this easy or surely someone would have already done it.
|
|||||||||||||||
| ||||||||||||||||
| ||||||||||||||||
|
fmj40 Moderator and Stock Holder :) 
|
Unfortunately, even if it were easy, you would have the side effect of having the visco probably staying engaged a little longer, after you don't want it to if you did this. Or for that matter, it might lok up quicker, but lok up more than you want it to. Meaning, if you take a corner and one wheels spins faster than the other, having thicker fluid might make it want to lock up even under this very slight wheel speed difference. Just a thought.
____________________ Here I come to save the day!!!!! 08' Can-am Renegade 500 Yellow 07' Can-am Outlander 800XT Warn plow, winch and push tubes Ricochet Skids, AC Grip Warmers, BRP windshield Crutchfield Stage 2's up front, 1's in the rear PRP Steering Stabilizer 26" Outlaw MST's, ITP SS108's |
|||||||||||||||
| ||||||||||||||||
| ||||||||||||||||
|
cardiac Member
|
I would have to agree that it is very tricky to get the right balance between locking to much or not soon enough. I have to trust that the CanAm engineers know their job better than I. It might be helpful for a real specific use, like 100% rock crawling or something. Anyway, good to know.
|
|||||||||||||||
| ||||||||||||||||
| ||||||||||||||||
|
fmj40 Moderator and Stock Holder :)
|
yeah, I would think that if you use really light oil, that the visco would "pump up" very quickly, but leak down just as fast so that any loss of wheel speed would disengage it, if too thick, take a longer time to pump up but then bleed off slower.
____________________ Here I come to save the day!!!!! 08' Can-am Renegade 500 Yellow 07' Can-am Outlander 800XT Warn plow, winch and push tubes Ricochet Skids, AC Grip Warmers, BRP windshield Crutchfield Stage 2's up front, 1's in the rear PRP Steering Stabilizer 26" Outlaw MST's, ITP SS108's |
|||||||||||||||
| ||||||||||||||||
| ||||||||||||||||
|
biggbowls Member
|
I have torn the visco completely apart to replace the clutch in it....I got a winch cable wrapped up in my tire at nats and it fried the clutch. There is a plastic backing behind the last clutch plate that melted all the way through out the clutch and locked it up. What a pain the arse to steer with that problem, however, it is certainly worth looking into for someone that wants a fulltime locker for racing.
|
|||||||||||||||
| ||||||||||||||||
| ||||||||||||||||
|
OSOKILL Admin Assist/ Enforcer 
|
enewman when you find one if ya dont mind, look to see if there is a place on them to tap in a fill plug and a drain plug. it might make the swapping out the fluids to fit the style riding yer planning a lot easier 
____________________ Team Outty 800 Member #24 |
|||||||||||||||
| ||||||||||||||||
| ||||||||||||||||
|
biggbowls Member
|
OSOKILL wrote: enewman when you find one if ya dont mind, look to see if there is a place on them to tap in a fill plug and a drain plug. it might make the swapping out the fluids to fit the style riding yer planning a lot easier There is a fill plug and drain plug for the unit......I recommend that you change the fluid about every dozen rides or so....I have some people that say to change them every ride but I think that is a little extreme. I have been using the BRP stuff but I have also been told that the Amsoil 75W-90 marine grade is good for the visco too. I use Royal Purple in the rear.
|
|||||||||||||||
| ||||||||||||||||
| ||||||||||||||||
|
superjoe83 Member 
|
biggbowls wrote: There is a fill plug and drain plug for the unit......I recommend that you change the fluid about every dozen rides or so....I have some people that say to change them every ride but I think that is a little extreme. I have been using the BRP stuff but I have also been told that the Amsoil 75W-90 marine grade is good for the visco too. I use Royal Purple in the rear. so, does the visco use the gear oil in the case, or does it have its own separate supply for the clutch engagement?
____________________ 08 Renegade, Ricochet skids, LTE Duals, HID low beams/HIR high beams, LED tail light, 26" 10 paddle scat trak's for sand use, stock tires for everything else |
|||||||||||||||
| ||||||||||||||||
| ||||||||||||||||
|
Northern Bomb Man Member 
|
The visco unit is sealed.... Totally separate from the diff oil. I have changed diff fluids on many units and the rear is always some what more discolured than the front ( as most riders are in 2x4 more than 4x4 ) and never seen any water. The fluid is also very clean and still blue even with high miles on some machines. Last edited on Fri May 16th, 2008 07:13 pm by Northern Bomb Man ____________________ 2008 Outlander 800 XT Yellow: 31" Laws on ITP SS 112 wheels, Custom full snorkels, Air box and CVT drain plugs, Dalton kit with a little sump'in different for the primary spring, UNI air filter, HMF Utility and custom extension and weather trap, Renegade side panels, foot pegs, Fan over ride switch, L.P. coolant, Can-Am HPG shock Kit ( front ), EBC brake pads, Moose Sportsman storage box, and me.. Muhahah! |
|||||||||||||||
| ||||||||||||||||
| ||||||||||||||||
|
biggbowls Member
|
From what I've seen, the visco and the diff use the same fluid. The visco has a pump that pushes a piston to engage the clutch plates. The clutch plates themselves are very light gauge steel plate with holes in them. I tore mine completely apart to replace the clutch plates and the plastic end piece that melted. There is no separate reservoir for the visco fluid. Again, wither the BRP 75W-90 or the Amsoil Marine grade. My dealer told me, and this is hearsay, that he has seen problems with the visco not locking quick enough with the Royal purple.
|
|||||||||||||||
| ||||||||||||||||
| ||||||||||||||||
|
Northern Bomb Man Member
|
http://www.gkndriveline.com/drivelinecms/export/sites/driveline/downloads/datasheets/ViscoLok-engl.pdf Read on for more info....
____________________ 2008 Outlander 800 XT Yellow: 31" Laws on ITP SS 112 wheels, Custom full snorkels, Air box and CVT drain plugs, Dalton kit with a little sump'in different for the primary spring, UNI air filter, HMF Utility and custom extension and weather trap, Renegade side panels, foot pegs, Fan over ride switch, L.P. coolant, Can-Am HPG shock Kit ( front ), EBC brake pads, Moose Sportsman storage box, and me.. Muhahah! |
|||||||||||||||
| ||||||||||||||||
| ||||||||||||||||
|
norsepeak Member
|
Bigbowls, I think you might be mistaken. The visco is a sealed unit and uses a very slippery thick silicon or teflon based fluid. Almost like a gel. There is no piston that pushes on the clutch pack. The visco actually uses pressure generated by slippage to lock the axle to the case. It then allows the pressure to bleed off inside the unit to disengage.
____________________ '08 800 XT, Richochet skids,926 miles so far! '06 400 XT, Richochet skids, 2952 miles '07 800 Summit X mod, new motor! '00 Summit 700 Custom mod.(2009 600 DI Summit X) '03 CRF 450 '76/05 CJ-5 Custom built Amsoil dealer Klim/HMK dealer WPS/Parts Unlimited dealer Custom metal fab |
|||||||||||||||
| ||||||||||||||||
| ||||||||||||||||
|
QUADAHOLIC formerly quadzilla
|
In the above link it clearly states that the unit is sealed, no fill or drains, biggbowls , exactly what quad did you do your work on, I'm getting cornfused. I think it would be nice to atleast change the fluid, even if you have to use the same, considering that there is a clutch-pak in there it's gotta get contaminated eventually. 
____________________ 07-650 Outy Max XT Ricochete ~ Crutchfield 2+1 PRP Stabilizer ~ 25" Bighorn's Kewltek brakes ~ Alumatech Guards Fasst bars ~ Rox risers ~ TC Duel Gasser plus a whole lot of little extra "custom touches" This site is worth a million Please Donate!! |
|||||||||||||||
| ||||||||||||||||
| ||||||||||||||||
|
biggbowls Member
|
Well, when I tore mine apart, I guess I didn't get into the shear pump. I know for a fact, and the link above states the same thing, that the clutch pack is lubed by the diff fluid. There is a plastic backing to the clutch pack that melted on mine and forced hot plastic throughout the clutch and locked it up. My mistake in assuming that the shear pump used the diff fluid to pump the piston. At any rate, I don't see why you couldn't change the number of clutch plates or replace some plates with a solid piece to make it lock faster. Just an idea. Also, it really is not that difficult of a job to get it open and explore it contents. Had I had a copy of that link when I opened mine it might have helped significantly. Sorry for posting incorrect info.
|
|||||||||||||||
| ||||||||||||||||
| ||||||||||||||||
|
QUADAHOLIC formerly quadzilla
|
That's no problem, it's why we're all hear , to sort stuff out and get to the bottom of things. It's like the saying, 2 brains are better than one, except we have 4500 and growing.
____________________ 07-650 Outy Max XT Ricochete ~ Crutchfield 2+1 PRP Stabilizer ~ 25" Bighorn's Kewltek brakes ~ Alumatech Guards Fasst bars ~ Rox risers ~ TC Duel Gasser plus a whole lot of little extra "custom touches" This site is worth a million Please Donate!! |
|||||||||||||||
| ||||||||||||||||
| ||||||||||||||||
|
Lillhajen Member 
|
So gentlemen, how is the 08 viscolok tuned compared to 07 and 06 version. I know its engages twice as fast as the old version. Is it different viscosity or different clutchpack ? Last edited on Sat May 17th, 2008 06:38 pm by Lillhajen ____________________ A son of a mudder Ricochet skidplates, Mudlite xtr, Warn RT25 and snorkelkit.Crutches x4 Stage 1 #332 |
|||||||||||||||
| ||||||||||||||||
| ||||||||||||||||
|
QUADAHOLIC formerly quadzilla
|
Lillhajen wrote: So gentlemen, how is the 08 viscolok tuned compared to 07 and 06 version. I know its engages twice as fast as the old version. Supposedly twice as fast, some have not noticed it.
____________________ 07-650 Outy Max XT Ricochete ~ Crutchfield 2+1 PRP Stabilizer ~ 25" Bighorn's Kewltek brakes ~ Alumatech Guards Fasst bars ~ Rox risers ~ TC Duel Gasser plus a whole lot of little extra "custom touches" This site is worth a million Please Donate!! |
|||||||||||||||
| ||||||||||||||||
| ||||||||||||||||
|
norsepeak Member
|
haven't noticed any difference between my 06 and 08.
____________________ '08 800 XT, Richochet skids,926 miles so far! '06 400 XT, Richochet skids, 2952 miles '07 800 Summit X mod, new motor! '00 Summit 700 Custom mod.(2009 600 DI Summit X) '03 CRF 450 '76/05 CJ-5 Custom built Amsoil dealer Klim/HMK dealer WPS/Parts Unlimited dealer Custom metal fab |
|||||||||||||||
| ||||||||||||||||
