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Clutch hose Burst!
#1

I've never done anything with a clutch or lines. I'm looking for DIY's. I know where the brake fluid reservoir is & not much else ... so I assume the top of the clutch line starts its journey somewhere about there. I've poked around on here and glanced at the www.clarks-garage.com site & that write up seems more written for someone who just needs a memory jogger than a DIY from scratch. I've just ordered a Motive Bleeder and some new fluid. And will be giving Pete a call Monday am for that new hose.



Any suggestions for a good DIY for replacing a clutch line, where is the bleeder screw for it? Or gotcha's?...



thanks.
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#2

The braided clutch line you're going to order from Pete (I highly recommend it!) comes with a set of instructions. You could probably download them ahead of time to prepare for the job while you're waiting for the new clutch line to arrive.
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#3

he's out of them, and i haven't made a new batch yet - dealing with that is on my list for this week
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94 Midnight Metallic Blue Cab Porsche 968 w/deviating cashmere/black interior and WAY too many mods to list - thanks to eric for creating www.968forums.com



"It isn't nearly as expensive to do it right as it is to do it wrong."
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#4

mine had problems last year, didn't burst, but was ballooning. I didn't replace it myself, but it is fairly easy to do. My mechanic said the bleed part was a real PIA. 1000 pumps of the clutch pedal to get it going, power bleeder didn't work well on this. The bleeder screw is on the master next to the starter.
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#5

Awaiting Pete's restock here too!



- Darryl
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#6

The bleeding isn't so bad with the pressure bleeder and keeping the rear end of the car elevated. Just make sure you always have fluid in the clutch portion of the reservoir. Now getting the two fittings together on the master cylinder. That was "fun."
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#7

I didn't have any trouble with the power bleeder, either. In fact, it worked flawlessly and quickly. And yet, I've heard of several people having problems with it. Wonder what's up...
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#8

I suggest replacing your Master and Slave at the same time. Mine failed within 2,500 miles of the new S/S hose.



Jay
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#9

I second Jay's recommendation. That's what I did.
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#10

Thanks for all the words of experience!!! <img src="/forum/images/smilies/968/smile.gif" class="smilie" alt="" /> I've contacted Pete and OEM product on the way per his suggestions with the SS part out of stock. I did speak to Pete about the installation and several steps of bleeding - sounds fun? <img src="/forum/images/smilies/968/blink.gif" class="smilie" alt="" /> I did download the SS line instructions from RS Barn website. Does the bleeder screw look similar to the one's on the brakes? I haven't been under this vehicle to date. Not a place I normally like to hang but getting a car into a local import-type garage here is usually a 2 to 3 week wait (honestly)....and I'm not willing to have a car sit so long... it's a small town in the mid-west - everyone drives US vehicles... oops! <img src="/forum/images/smilies/968/ohmy.gif" class="smilie" alt="" />



Again thank you! This car spent the winter inside --- the roads here are terrible!!! and I'm looking forward to getting it out of the garage now that the deep ice ruts have left my streets. Being a slow mechanic hopefully this doesn't take me so long.
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#11

A decade ago there was some talk in the 944 mailing lists of SS brake lines causing failures in the brake master and slave cylinders, but the only guess was that they didn't have any give and transferred all force to the seals in the cylinders...



Is there any indication of that with the clutch - eg. have others experienced Jay's failure after installing the SS line?
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#12

Not a tough job but did require several bleed attempts and it seemed to work better when I used the power bleeder and pumped the clutch once or twice - that's what finally did the trick.
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#13

this is a case of post hoc ergo proctor hoc



the problem is that all of the hydraulic components age at about the same rate, and fail from the inside, where you cannot see them - if you replace one component (i.e. the hose) the others are now weak - the new component will hold pressure like new and the old components won't hold as much, and will be the next to fail, the weakest first, and then on down the line



how fast this happens is due to a lot of factors, not the least of which is failure to regularly flush the entire hydraulic system every 2 years
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94 Midnight Metallic Blue Cab Porsche 968 w/deviating cashmere/black interior and WAY too many mods to list - thanks to eric for creating www.968forums.com



"It isn't nearly as expensive to do it right as it is to do it wrong."
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#14

Well I received the new parts and have removed the old one. Progress.
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#15

If the CMC fails can it leak into the brake booster?
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#16

Old thread, same problem.

I replaced my slave fir fun (I had a new one sitting around) and even though I have a power bleeder and have pumped the pedal (pulled and pushed actually as it flops around like a dead fish) and can't get the master to take any liquid. I get no air whatsoever coming out of the slave bleed screw, just nice clean liquid.

Suggestions?
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#17

with a power bleeder, there is no pumping of the pedal. you just pressurize the system at the top and then open the screw at the bottom.
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94 Midnight Metallic Blue Cab Porsche 968 w/deviating cashmere/black interior and WAY too many mods to list - thanks to eric for creating www.968forums.com



"It isn't nearly as expensive to do it right as it is to do it wrong."
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#18

You would think that would be the case but I could run litres through the system with no bubbles and still the master just flops to the floor. I made the rookie mistake of frustration and pumped my bleeder over 15 psi <img src="/forum/images/smilies/968/sad.png" class="smilie" alt="" /> I blew the bladder in my new slave and spewed brake fluid all over the lower clutch/flywheel assy and the floor.

Washed it all off with hot water and will Brakeclean it tonight once it has dried. Off to buy a new slave and start again.
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#19

is the clutch hose new?



is the pedal connected?



can you see the clevis rod moving in and out of the master?
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94 Midnight Metallic Blue Cab Porsche 968 w/deviating cashmere/black interior and WAY too many mods to list - thanks to eric for creating www.968forums.com



"It isn't nearly as expensive to do it right as it is to do it wrong."
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#20

Yup, yup and yup
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