Sorry to bother you guys again, but here is my situation.

My stock clutch is finally slipping so I decided to purchase the rps stage 2 unsprung hub. I wanted to get the sprung, but was advised by the seller to go with the unsprung because I was retaining the stock flywheel...anyways, I've heard nothing but bad reviews on this clutch. Ranging from shot trannies to crankwalk. The list goes on.

Regarding the crankwalk issues, how can I prevent this catastrophic event? I know on start ups, when the clutch is ingaged to start the motor, the higher force of the upgraded pressure plate can apply excessive force to the thrust bearing, causing failure, due to cold start(no lubrication).

Should I bypass the clutch start switch to allow for proper warm-up before engaging the clutch? I know a lot of mk4 guys do this. Do you guys have any recomendations/tips?

Sorry if this is kinda long, but I just want to know the opinions of you people who have probably gone through this dilema.

Thanks -Will

Do you have a mk3 or a mk4?

There is no purpose to an unsprung clutch disc on a mk3. Nothing but bad news for your transmission.

Crankwalk comes from a very high pressure pressure plate pushing on the crankshaft thrust bearing. Bypassing the clutch safety switch creates a safety issue. If you don't let others drive the car and can always be careful with it yourself, bypassing the switch is cheap insurance. An engine pre-luber is more expensive, more safe insurance.

Hey, thanks alot brian! Yeah, I bypassed the safety switch yesterday and I also contacted the seller to switch the unsprung disk for the sprung version. Cost an extra 50 bux, but well worth it for the peace of mind. (too bad it will delay the delivery!)

What does bypassing the clutch safety switch do? Is that the switch that lets the car know the clutch pedal is pressed? If so I take it that you can start your car in neutral with the clutch ingaged?

Howz it going psykho?
the clutch safety switch allows the ignition to be started with the clutch pressed in. bypassing it allows you to start the car without pressing the clutch pedal down, ala automatics.

Haha, actually I hate this switch. None of my other cars had it on, and it's more of a PITA in my opinion than anything else. One bad thing about it, though for the most part you won't normally need it, but if your battery is dead, or something to that affect, you can't coast the thing and and let the clutch out in gear to get it started. So that kind of sucks, but so far haven't had to bother with that. Most annoying thing is just trying to start the car in neutral and I have to push the clutch in or it still won't start..

quote:

Originally posted by DMB-87Supra:
Haha, actually I hate this switch. None of my other cars had it on, and it's more of a PITA in my opinion than anything else. One bad thing about it, though for the most part you won't normally need it, but if your battery is dead, or something to that affect, you can't coast the thing and and let the clutch out in gear to get it started.

yes you can... the neutral safety switch only disengages the starter when the switch is not depressed. (read: when the switch isn't making a connection, the starter will not work)

now, when you have a dead battery, you're not using the starter anyway. you can pop start the car just like any other...

quote:

So that kind of sucks, but so far haven't had to bother with that. Most annoying thing is just trying to start the car in neutral and I have to push the clutch in or it still won't start..

so why dont you just bypass it if its that much trouble. hell, you can pick up a "CLUTCH CANCEL" switch from an early ninetys toyota pickup and custom wire it in, and mount it in the left side switch panel, and it'll look stock.

pushing in the clutch to start the car never bothered me. it's like that for safety reasons...

-shaeff

I'm pretty sure it won't let you coast start it but anyway.

I do plan on bypassing it BTW when I get around to it. As for the safety reasons thing, /shrug. Only thing I can think of offhand is so you don't forget the car is in gear and try to start it without pushin the clutch in and the car jerking forward a bit. So not that big of an issue.

OMG, Think about it. The safety switch tells the car when the peddal is to the floor. The switch just stops the starter from turning.
You turn on the ignition, get the car rolling, let out the clutch and bam, it starts.
In fact if you can turn the motor over fast enough (through starter or gearbox) it will run whenever the ignition is on regardless of what position the clutch switch is in.
See how this works now?