997S stuck in snow when out then problem once out!
Discussion
Hi
I took the 997S out today to do some xmas shopping (in the snow!). Anyway all was well until I got stuck in some snow on the way home. I got the missus to help push the car whilst I turned off the PSM, put it in first gear and then gave it gas to get it out.
The problem was I was going on a slight incline and once I got the car moving I had to keep on the gas hard to keep it going. I had the car revving at 7000rpm for about 15 - 20 seconds with the rear wheels spinning until I got out of the rut.
Anyway to cut a long story short, the PSM and ABS warning error lights came on (they went back out 15 mins later by themselves). The thing is there was a burning smell at the back of the car - now I don't think it was rubber as the wheels were spinning on snow, so what do you guys think the smell was?
I thought it could be clutch, but the clutch was fully up and I had my foot on the gas only. The engine was fully warm at the time.
Was what I did bad for the car, or was it just the same as revving it say with the engine in neutral?
I took the 997S out today to do some xmas shopping (in the snow!). Anyway all was well until I got stuck in some snow on the way home. I got the missus to help push the car whilst I turned off the PSM, put it in first gear and then gave it gas to get it out.
The problem was I was going on a slight incline and once I got the car moving I had to keep on the gas hard to keep it going. I had the car revving at 7000rpm for about 15 - 20 seconds with the rear wheels spinning until I got out of the rut.
Anyway to cut a long story short, the PSM and ABS warning error lights came on (they went back out 15 mins later by themselves). The thing is there was a burning smell at the back of the car - now I don't think it was rubber as the wheels were spinning on snow, so what do you guys think the smell was?
I thought it could be clutch, but the clutch was fully up and I had my foot on the gas only. The engine was fully warm at the time.
Was what I did bad for the car, or was it just the same as revving it say with the engine in neutral?
This is a mickey take isn't it?
You saw some one making a hash of things eh?
All the drivers with absolutely no idea of how to cope with snow and some ice?
Please tell me that someone with a 997 doesn't really do this ''I had the car revving at 7000 rpm for about 15 - 20 seconds with the rear wheels spinning until I got out of the rut''.
:disbelief:
You saw some one making a hash of things eh?
All the drivers with absolutely no idea of how to cope with snow and some ice?
Please tell me that someone with a 997 doesn't really do this ''I had the car revving at 7000 rpm for about 15 - 20 seconds with the rear wheels spinning until I got out of the rut''.
:disbelief:
Harpo said:
This is a mickey take isn't it?
You saw some one making a hash of things eh?
All the drivers with absolutely no idea of how to cope with snow and some ice?
Please tell me that someone with a 997 doesn't really do this ''I had the car revving at 7000 rpm for about 15 - 20 seconds with the rear wheels spinning until I got out of the rut''.
:disbelief:
+1You saw some one making a hash of things eh?
All the drivers with absolutely no idea of how to cope with snow and some ice?
Please tell me that someone with a 997 doesn't really do this ''I had the car revving at 7000 rpm for about 15 - 20 seconds with the rear wheels spinning until I got out of the rut''.
:disbelief:
IMO the smell would have been one of 3 likely things.
1. the abs /psm system doing its job by slowing down any wheel that is spinning, and it sounds like you really had them spinning. When you disconnect / de activate pSM the traction control facility still remains active.
2 Could have been the tyres.
but most likely no 1.
but to be honest, you will do no good to your car allowing it to rev so high whilst under almost no load.
Instead you should have used a higher gear (2nd or even 3rd) to bring the revs way way down. You would still have been wheel spinning, thats not the issue. Its the almost free revving engine at 7K is the problem.
The other problem is the centre VC ( these cars dont have a centre diff). Its not mechanically connected to the front Its only a VC. While the rear is spinning the front would not have been and if they were only at a fraction of the speed of the rears. so you will have a very large speed mismatch between the rear and front of the centre VC. This can boil the silicone fluid in the VC in a matter of seconds, rendering it useless.
I dont think you will have done your cred a lot of good with your post, but to be fair,its the way to learn so I cant down you for that. Just try not to over rev your engine next time and spinn the rears too much.
But back on topic, I think it would have been your rear brakes you could smell, I hope it wasnt the centre VC.
Frank
ps even if the OP is a troll, its still a lesson for others just in case because, 7k 6k 5k 4k rpm's is still to high in the snow.
1. the abs /psm system doing its job by slowing down any wheel that is spinning, and it sounds like you really had them spinning. When you disconnect / de activate pSM the traction control facility still remains active.
2 Could have been the tyres.
but most likely no 1.
but to be honest, you will do no good to your car allowing it to rev so high whilst under almost no load.
Instead you should have used a higher gear (2nd or even 3rd) to bring the revs way way down. You would still have been wheel spinning, thats not the issue. Its the almost free revving engine at 7K is the problem.
The other problem is the centre VC ( these cars dont have a centre diff). Its not mechanically connected to the front Its only a VC. While the rear is spinning the front would not have been and if they were only at a fraction of the speed of the rears. so you will have a very large speed mismatch between the rear and front of the centre VC. This can boil the silicone fluid in the VC in a matter of seconds, rendering it useless.
I dont think you will have done your cred a lot of good with your post, but to be fair,its the way to learn so I cant down you for that. Just try not to over rev your engine next time and spinn the rears too much.
But back on topic, I think it would have been your rear brakes you could smell, I hope it wasnt the centre VC.
Frank
ps even if the OP is a troll, its still a lesson for others just in case because, 7k 6k 5k 4k rpm's is still to high in the snow.
Edited by Sunnysidebb on Monday 20th December 13:22
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