Max Capacity Posted December 1, 2010 Share Posted December 1, 2010 If you have a OEM clutch. I vote for that. The automatic guy...who cares. The oem clutch will slip when backing up in a few inches of snow. So I'm guessing it is slipping a bit under all the load forces. Hey make sure you do donuts in the snow after the brakes and wheels are hot then park the car while your at work...you'll love the ride on the way home... The only guy who blow the diff was doing donuts on dry pavement. If I remember correctly, it was something about entering a race track after hours. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
Mega Users seabass07 Posted December 1, 2010 Mega Users Share Posted December 1, 2010 Please explain how an oem or any non burned out clutch will slip regardless of the power of the engine when the wheels are in spinning on snow/ice. If all of the torque is being transmitted to the tires slipping on a slippery surface, how is the clutch experiencing enough torque to slip when you can do a 3rd gear pull and not get any slip? Link to comment Share on other sites More sharing options...
whitetiger Posted December 1, 2010 Share Posted December 1, 2010 Ive actually blow my rear diff twice launching on r-comps at autox events. both times made no smell. Link to comment Share on other sites More sharing options...
Homemade WRX Posted December 1, 2010 Share Posted December 1, 2010 well if we are going to start talking about breaking drivetrain bits 3 R160's...1 ring gear, 1 pinion gear, 1 set of spider gears 2 5-spd trans 1 5-spd driveshaft 1 DSS Stage 5 '1000hp' axle Link to comment Share on other sites More sharing options...
Max Capacity Posted December 1, 2010 Share Posted December 1, 2010 Please explain how an oem or any non burned out clutch will slip regardless of the power of the engine when the wheels are in spinning on snow/ice. If all of the torque is being transmitted to the tires slipping on a slippery surface, how is the clutch experiencing enough torque to slip when you can do a 3rd gear pull and not get any slip? Have you ever driven in snow ? I can only tell you what I've noticed in more then one of my Legacy's. The OEM clutches suck. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
Homemade WRX Posted December 1, 2010 Share Posted December 1, 2010 well he does live in Florida. I've also witnessed more than one smoked clutch in the snow Link to comment Share on other sites More sharing options...
xt2005bonbon Posted December 2, 2010 Author Share Posted December 2, 2010 Sooooo, I've been reading through all the posts and I have a feel that there are quite a few votes for either clutch slipping or diffs. Still crazy how that clutch would slip though. But I have to say I'm pretty sure that's the smell I got. And btw, it was not the powersteering cause I was going straight in my experiment. Not as fun as donuts of course.. k gonna create a poll here with the following options as for the reasons for the stink while playing in slippery stuff with high rpm: 1-clutch 2-diffs 3-both 4-power steering pump Sounds fair? Edit: Poll has been created. Please vote and provide explanation in your post if possible. And crap, I forgot to add 'stuff burning off on exhaust' option. Seems I can't modify the poll anymore Link to comment Share on other sites More sharing options...
Mega Users seabass07 Posted December 2, 2010 Mega Users Share Posted December 2, 2010 I haven't driven a manual legacy or driven in snow. It may seem like I am saying it is impossible, but really I am asking how it is possible. I've driven on wet grass and mud in many manual cars and have never experienced any clutch slippage. If I'm wrong, I'm wrong, it just doesn't make sense to me. Link to comment Share on other sites More sharing options...
xt2005bonbon Posted December 2, 2010 Author Share Posted December 2, 2010 I haven't driven a manual legacy or driven in snow. It may seem like I am saying it is impossible, but really I am asking how it is possible. I've driven on wet grass and mud in many manual cars and have never experienced any clutch slippage. If I'm wrong, I'm wrong, it just doesn't make sense to me. ^Actually, I am kina with you on that. I have a hard time believing the clutch would slip but I can't deny the stinking smell. And I do recognize clutch smell.. I am doing some searches in other forums right now and some people are mentioning clutch slippage. And that's on a jeep forum.. Link to comment Share on other sites More sharing options...
Homemade WRX Posted December 2, 2010 Share Posted December 2, 2010 if it's deep snow with a pack and not asphalt beneath it, then yeah, the surface is always slick...if you have snow, asphalt, snow asphalt, it does transfer back up the drivetrain. I'm still thinking hot diff oil from the diffs working soo much...either that or the power steering pump if you were holding it at lock. Link to comment Share on other sites More sharing options...
mwiener2 Posted December 2, 2010 Share Posted December 2, 2010 Ive actually blow my rear diff twice launching on r-comps at autox events. both times made no smell. because there was no heat My Mods List (Updated 8/22/17) 2005 Outback FMT Running on Electrons Link to comment Share on other sites More sharing options...
burnout8488 Posted December 2, 2010 Share Posted December 2, 2010 Do you know the difference between clutch and tire smell? If so, this should be easy. Link to comment Share on other sites More sharing options...
doccrowley Posted December 2, 2010 Share Posted December 2, 2010 My vote is crap on your exhaust for the burnt smell and smell coming from tires rubbing against all of the snow crammed between your wheel wells and the tires. Ever done so many snow donuts that the wheels are jam-packed with snow and the wheel wells are packed solid also? I've actually pushed the inner wheel well liners apart from so much snow packed in there on one occasion. Then road salt combined with road goo and exhaust smell is awesome! Link to comment Share on other sites More sharing options...
mwiener2 Posted December 2, 2010 Share Posted December 2, 2010 there's alot of hot going on during stupid human tricks My Mods List (Updated 8/22/17) 2005 Outback FMT Running on Electrons Link to comment Share on other sites More sharing options...
BoozeRS05 Posted December 2, 2010 Share Posted December 2, 2010 I've noticed it in my RS (inclined driveway with RE92's and a foot of snow ) and my LGT (donuts ). Its def clutch IMO, don't know how, but I know the smell.. EB's Subaru journal - 2005 LegacyGT Wagon & 2014 Forester FB25 (2008 specB - RIP) IG@legacygtliving Link to comment Share on other sites More sharing options...
Max Capacity Posted December 2, 2010 Share Posted December 2, 2010 I also like the tire rubbing thought too. That's a good possibility. Seabass, these oem clutches are real weak, they will slip. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
Mega Users seabass07 Posted December 2, 2010 Mega Users Share Posted December 2, 2010 Thanks for the explanation. Link to comment Share on other sites More sharing options...
thestratomaster Posted December 2, 2010 Share Posted December 2, 2010 I'm not that positive on how the clutch would slip in the donut situation, however, I get the same smell. and it is definitely clutch. the smell of burning clutch is a very distinct smell. Link to comment Share on other sites More sharing options...
mwiener2 Posted December 2, 2010 Share Posted December 2, 2010 someone correct me if I'm wrong, but the rear diff has it's own clutch packs, which smell like burning clutch when they get too hot it's nearly impossible for the transmission clutch to be slipping in this situation... unless the driver's foot is on the clutch pedal too much My Mods List (Updated 8/22/17) 2005 Outback FMT Running on Electrons Link to comment Share on other sites More sharing options...
fredraud Posted December 2, 2010 Share Posted December 2, 2010 there's alot of hot going on during stupid human tricks Roflmao. Soo true!!! in my snownut experience, it has been the brakes that make the smell from snow getting in the wheels when sliding sideways pushing the calipers dragging the outside pad... Ever done so many snownuts that you burned a tank of fuel torched the outside pads off your rear calipers, wore the sidewalls off your tires . Had a legacy turbo field car we used to bomb around the gravel roads and through the bush with ESP after big snow falls Mike Link to comment Share on other sites More sharing options...
fredraud Posted December 2, 2010 Share Posted December 2, 2010 Also had problems with a na forester we would do drift running with.. Ie find no maintenance roads after a big windy snow storm, hit 60-70 mph and try to plow through a 3-5 ft high drifts. Bring lots of people and shovels... Not only would the car start to overheat because the rad is plugged solid with snow, belts would squeal, and so much snow would start to melt and freeze packing the clutch fork lever back and open making te clutch slip... Snow will find it's way into the bellhousing too..... Link to comment Share on other sites More sharing options...
frank_ster Posted December 2, 2010 Share Posted December 2, 2010 the most likely place for your clutch to slip is in 5th gear doing a highway pull if its not slippin there its not gonna slip as low speed. smell could be the belly pan being pushed up agaisnt the exaust and melting when going through deep snow also .. Now that's thinking out of the boxer! fyi all 05 + legacy's have built in code reader Link to comment Share on other sites More sharing options...
whitetiger Posted December 2, 2010 Share Posted December 2, 2010 someone correct me if I'm wrong, but the rear diff has it's own clutch packs, which smell like burning clutch when they get too hot it's nearly impossible for the transmission clutch to be slipping in this situation... unless the driver's foot is on the clutch pedal too much the rear diff doesnt snot have standard clutch packs. it has an enclosed viscous fluid system which is sealed from the rest of the diff itself. this is why we dont need friction modifiers in our rear vlsd. Link to comment Share on other sites More sharing options...
mwiener2 Posted December 2, 2010 Share Posted December 2, 2010 it's not as viscous as it's name implies "The V/C (viscous coupling) type LSD has outer plates and inner plates arranged alternately. Each outer plate is splined to the inside of the differential case at its outer periphery and each inner plate is splined to the outer circumference of the left side gear at its inner periphery. The outer plates are held in position by spacer rings while the inner plates can slide in the axial direction along the spline teeth. The space between the differential case and the left side gear is filled with a mixture of high viscosity silicone oil and air and hermetically sealed with X-rings." -Subaru Shop Manual aka, clutch packs. Those X-rings don't last forever.... especially if you heat that air and oil and it pushes past the seals My Mods List (Updated 8/22/17) 2005 Outback FMT Running on Electrons Link to comment Share on other sites More sharing options...
Homemade WRX Posted December 2, 2010 Share Posted December 2, 2010 but the viscous units are sealed from the diff fluid and it's actually a shear thickening fluid...not just high viscosity. You are right, the rings can get smoked. Link to comment Share on other sites More sharing options...
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