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-   -   More on clutch hydraulic system fixing... (http://www.saturnfans.com/forums/showthread.php?t=132628)

jcw 01-24-2009 11:03 PM

More on clutch hydraulic system fixing...
 
On my quest to save some money and learn something I decided to fix my manual SW2 clutch hydraulic system that was getting hard to shift.

The culprit was a leakage at the hydraulic damper and it was caused by bad oxidation of the only non plastic part of the system. Hygroscopy played its part - the whole damper is made of steel and corroded internally after 9 years. Here's a picture of it with the diaphragm already cleaned - it had thick rust deposits underneath the rubber O-ring:
[url=http://www.saturnfans.com/photos/showphoto.php?photo=49816][img]http://www.saturnfans.com/photos/data/500/thumbs/damper.jpg[/img][/url]

I fine sanded the diaphragm, reassembled it and did the bleeding following mavmav instructions:
[url]http://www.saturnfans.com/forums/showthread.php?t=65662#[/url]

As a result I had a nice rebuilt system - you can tell you don't have much air in the system when it becomes very difficult to push the slave rod into its cylinder by hand.

During re-installation, using the instructions from Saturn FSM for 1995 S-Series nicely published by 3danh:
[url]http://www.saturnfans.com/forums/showthread.php?t=60471[/url]

When trying to reinstall the actuator into clutch housing, one of the plastic hydraulic lines broke, ruining the whole repair.

Here's the main reason for this post: I think that in discordance with Saturns's S-Series clutch FSM you have to reverse the order of both removal and installation of the damper and actuator. In doing so, you have much more flex available with the hydraulic lines, probably preventing possible line breakage. On removal first remove damper and then the actuator. On install first insert the actuator and then secure damper.

Anyway, I put my tail between my legs, got the Advanced Auto Parts PF9001 replacement system ($102 versus $185 OEM), and I'm happy again (The PF9001 is made in USA by Perfect Clutch).

DonP 01-25-2009 10:04 AM

Re: More on clutch hydraulic system fixing...
 
FWIW: About $123 plus shipping from [url]www.saturnparts.com[/url]

Neat information. Thanks for the post.

OldNuc 01-25-2009 02:04 PM

Re: More on clutch hydraulic system fixing...
 
[quote]
Here's the main reason for this post: I think that in discordance with Saturns's S-Series clutch FSM you have to reverse the order of both removal and installation of the damper and actuator. In doing so, you have much more flex available with the hydraulic lines, probably preventing possible line breakage. On removal first remove damper and then the actuator. On install first insert the actuator and then secure damper.[/quote]

Yes, that is exactly how you have to both remove and install it or it will break. Sometimes it pays to not read and follow the manual.:hmpf:

Nice work on disassembling the damper. I think the later iterations are a welded assembly however.

If I did not have 3+ inches of global warming to scrape up this AM I would go look at how the ones here are built.:mad:


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