question

"Joe_Limon" (Joe_Limon)
11/09/2013 at 19:40 • Filed to: None

Is abs hard on your clutch? Can you stall your engine if you lock your tires up on ice without abs?

DISCUSSION (9)

dogisbadob > Joe_Limon
11/09/2013 at 19:44

It shouldn't be.

Nick, Drives a Cobalt LT > Joe_Limon
11/09/2013 at 19:44

You're engine will stall if you lock up without pushing the clutch in.

And the clutch only wears when there is a speed difference between the flywheel and the input shaft on the transmission.

So no.

desertdog5051 > Joe_Limon
11/09/2013 at 19:48

ABS... ABS? I have heard that term before. :)

Joe_Limon > Nick, Drives a Cobalt LT
11/09/2013 at 20:07

The clutch regularly slips while fully engaged under normal operation. The clutch smoothes out the drivetrain shocks caused from repetedly locking up the wheels. This causes the rest of the rotating mass to continue spinning and lessens the rotational inertia the brakes must over come. If the clutch didn't slip, the damage to the engine would be pretty bad every time abs engages. Also you would have a chance of stalling the engibe if you suddenly disengaged the clutch while abs was on.

KusabiSensei - Captain of the Toronto Maple Leafs > desertdog5051
11/09/2013 at 20:08

I think it's that questionable thing Ford added to my truck on the rear axle.

And yet, I can still threshold brake that pickup AND emergency lane change to avoid hitting a dumbass Honda who decided to stop suddenly because navigation herp derp.

nafsucof > Joe_Limon
11/10/2013 at 02:42

No, when the clutch is engaged in good working order the are not slipping. Your engine just slows down with the car. Yeah but it'll pop start on letting off the brakes and the tries getting some traction. Chances are you've hit the brakes too hard and need to slow down if it's that icy though.

Joe_Limon > nafsucof
11/10/2013 at 10:25

Even a brand new aggressive performance clutch will slip a little when fully engaged. It takes up shocks in the drive train. If this wasn't true, suddenly hitting the clutch pedal in while abs is going off would cause your engine to stall some times. The jerky starting/stopping from abs would also be horrible to every bit of rotating mass in your engine, your serpentine belt would wear quicker, and your brakes would also have to overcome the rotating mass of your engine. Repeatedly, causing excessive brake wear.

Clutches slip, it is a good thing.

Next, where in the world do you live?,I am canadian and half the year our roads are frozen. Not just a little slick, unpaved roads can cause abs to engage at a walking pace and it would still take a number of car lengths to stop.

nafsucof > Joe_Limon
11/10/2013 at 11:19

I disagree to a point, modern cars have developed sprung hubs and dual mass flywheels to compensate for the drivetrain shocks. All of the other components are designed to wear more quickly. If your clutch is slipping when fully engaged in my books you need a new clutch. I have an auto cross prepared SVT focus with a solid hub 6 puck race clutch and flywheel heavy duty pressure plate and LSD. If there was any slip you would know it. Once a clutch starts to slip when engaged its shot. My focus st with a tune makes 330 wtq at 2800rpm. If it slipped when engaged I would have brought the car back. It lays rubber down, your tires slip more than the clutch. Esp non performance tires. Also the clutch is inside the engine and tranny assembly, all parts you mentioned are on the exterior of the engine or easier to service ie the brakes, and they are more than powerful enough to over come the rotating mass of the car, even enough to overcome the weight of the car which is far greater. Brakes are a service item and are designed for partial application which is why the pads are 4 times as thick as a clutch. Clutch too just for far more service cycles.

As far as where I live? Connecticut. In the hills. We have plenty of back and dirt roads. I run snow tires or hp summer tires. If op is locking up his brakes on ice slowing down is a recommendation. I've always modulated throttle and brakes to not lose control while driving. I test with jabs of the brakes randomly to assess the surface traction. Also, you are a minority driving on roads frozen half the year. Are you in the arctic circle? Why are all the roads covered in sheets of ice?

Joe_Limon > nafsucof
11/10/2013 at 15:32

Strange it is as if you read my posts but did not understand what you were reading. Are you esl?

When I slay every clutch slips, I am not saying that as you drive one side of the clutch is constantly spinning faster then the other. That is a stupid opinion, and I am a little upset that you think I am that stupid.

I am saying that an engaged clutch is not a bonded feature, sudden jerks in the driveline can and do cause the clutch to slip... No not spin out... Slip, you know a couple degrees here and there. Just from normal operation. This is why your engine/flywheel doesn stop when your abs goes on, and no it isn't just vehicle inertia that restarts the angular momentum. If that was the case, on black ice you wouldn't have enough traction to start the engine again.