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LS1 clutch hydraulics FTL
I'm not sure if it's my master cylinder or slave cylinder that is making my clutch stick. At the track I've had a problem with the clutch sticking to the floor on the launch a few times(I think the master is at fault). But then last night I went to powershift into 3rd and the clutch stuck to the floor again(probably the master again), but ever since then my clutch peddle has not felt right. It will come up all the way, but after about 3/4 of the way up it releases slower. Also, I had a lot of trouble getting the car to go into reverse and 1st today.
If I replace the master cylinder with an adj. one that flows more fluid will it prolong the life of the slave cylinder that may be on it's way out? The reason I ask is because I just purchased a tick adjustable master cylinder for the car and wanted to see how far I could push the stock clutch, but I won't make it to the track if the slave cylinder takes a ****. What exactly fails in the slave cylinder? And would having more fluid flow to it make it last a little longer? |
you have to do the drill mod to the master cylinder line. GM restricted it for some ungodly reason, and you need to drill it out bigger...
and it would be a good time to upgrade to 01-02 hydraulics |
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pedal sticks to the floor when the clutch slips and the fluid boils causing air bubbles in the fluid. same thing used to happen to me under heavy acceleration, got a new clutch and no more pedal sucking to the floor
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do you have stock clutch?
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I was talking to my dad about it(retired mechanic), and he said that if it's not the clutch hydraulics, I may have damaged the pressure plate. I'm going to take the car out for a spin in a few minutes and see how it holds. Edit: Just took the car for a spin on the parkway. I think I can almost rule out the clutch. The clutch is grabbing and holding well. I spin all the way through the top of 2nd. Also, I dropped it down into 6th at 45 mph and punched it and the tack very slowly rose from 1000 rpm. The peddle feels very spongy to me, I have never flushed the hydraulic system since I got the car, but with the car cold and off, the peddle still feels spongy. I'm guessing this is from having a weak master cylinder? 91Droptop, thanks for all of the replies. |
tick master, new gm slave = no more problems
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The tick master is a great upgrade, but nothing will improove the function of a failing slave cylinder if it is indeed dying. You don't have to worry about drilling out the fitting with the tick master because it comes with a larger line in the kit..
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While you have the trans down for josh to do the clutch, get the trans done. If you are gonna be at the track a lot you are gonna want that peace of mind of having fresh, improved equipment to rely on.
BTW, Josh did my clutch and it is sweet. |
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