

| Subject: | Re: Thnings that go "Squish" in the night |
| From: | George Goff |
| Date: | Thu, 12 Dec 2002 09:16:10 EST |
In a message dated 12/11/02 6:45:47 PM, j_rodgers@CHARTER.NET writes: << Anyone got ideas as to what this "Squish" is about? And if it's clutch master cylinder - how hard to replace? >> John, I have no way of knowing for certain, but it sounds like the clutch master cylinder has seen better days and leaking into its boot. Since the clutch and brake master cylinders draw from a common reservoir, some of the crud which fouled your brake cylinder might have migrated to the clutch cylinder. It certainly would have been easier to replace both at one time. Removing the clutch cylinder is the typically nuisance ridden Vanagon job. Some things I do are: 1) Suck out as much of the brake fluid from the reservoir as possible. A large syringe is nice for this, but an empty squeeze bottle will work. 2) Fill the reservoir with fresh fluid and flush the system thoroughly through the slave cylinder bleed nipple before removing the old cylinder. 3) Repeat Step 1). 4) There will still be some fluid in the make up hose so have some rags ready. 3) Installing the new cylinder, I find it is best to run the flare nut in by hand until it bottoms before I install the cylinder mounting bolts. This way, the slight movement needed to align the hydraulic line to the cylinder is possible. 4) Here is the biggest nuisance. There is supposed to be freeplay between the piston and the actuating rod, which makes sense. It is supposed to be .020", which doesn't make sense. And, if there is a mortal man who can adjust that clevis on the end of the actuating rod with it in place, I want to meet him. If adjustment is needed, I take the actuating rod out to do it. I also disconnect the clutch return spring so that I can work the clutch pedal by hand to feel the freeplay. 5) I use a pressure bleeder of my own devise to bleed the system. The first time I did one, I did not use a pressure bleeder and I recall that it took a bit of screwing around to do it that way. George
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