Clutch slave upgrade for the cost of a liter of Pentosin
#76
Three Wheelin'
Job well done, congratulations!!!!! Happy for you with that good result. I did an open heart surgery of an old slave and accumulator . Unfortunately nothing obvious found in the slave. All the seals looks really good and the cylinder wall looks good also....My thinking was the fluid might escape between the high pressure and low pressure on the piston itself(pressure A pressure B). Al the other components where perfect....The accumulator bladder was damage. It slip from his joint....Strange but it seems the rubber did not react properly with the Pentosin.... I can be wrong there also ;-) Keep us inform of your findings if you ever attempt to dig deeper into the mysterious slave failure
#79
Rennlist Member
wow, that was a long read!
After all of the removals, plugging, plumbing, leaking, sealing, custom plugs, etc. it seems like you could effectuate the same result by simply removing the coupler and leaving everything else in place. Accumulator, lines, clutch slave (assuming it's not leaking).
No more high pressure going into the accumulator, so accumulator leaks become moot. No more high pressure going into the clutch slave, so presumably no migration of pentosin from PS reservoir to clutch master reservoir.
Perfect solution? Probably not... But will fairly quickly and easily reversibly let you experience clutch effort and smoothness of the mod, and if it's 'temporary' just until the tranny is down for the full GT2 slave mod, why not? Zero cost, zero under body work.
Seems like the whole reservoir/pump/high pressure line/accumulator/slave/return-line/reservoir circuit would just remain static... Fluid filled but no pressure, and all clutch actuation pressure would just come from the clutch master.
Am I missing something?
After all of the removals, plugging, plumbing, leaking, sealing, custom plugs, etc. it seems like you could effectuate the same result by simply removing the coupler and leaving everything else in place. Accumulator, lines, clutch slave (assuming it's not leaking).
No more high pressure going into the accumulator, so accumulator leaks become moot. No more high pressure going into the clutch slave, so presumably no migration of pentosin from PS reservoir to clutch master reservoir.
Perfect solution? Probably not... But will fairly quickly and easily reversibly let you experience clutch effort and smoothness of the mod, and if it's 'temporary' just until the tranny is down for the full GT2 slave mod, why not? Zero cost, zero under body work.
Seems like the whole reservoir/pump/high pressure line/accumulator/slave/return-line/reservoir circuit would just remain static... Fluid filled but no pressure, and all clutch actuation pressure would just come from the clutch master.
Am I missing something?
#81
Drifting
I must be the only one around here who likes the action of the power assisted clutch. :/ I get caught in city traffic sometimes and I could not imagine driving a GT2 weighted clutch in that crap for very long.
#82
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In the end I did exactly that....took out the coupler but that was the way the process evolved...not really the plan from the start.
I was trying to avoid splitting the reservoir/pump for fear of getting pentosin everywhere. The only instructions I could find for doing this said “have rags everywhere to catch the pentosin before it ruins your paint.” Had I known you could just take to top off of the reservoir and get every last bit out first, I would have done that from the start. That was the tipping point for me. Once that fear was removed, it was an easy choice.
It took me about a week to get used to the weight of the new setup and I have yet to remove the helper spring (in mostly because that noise is incredibly annoying) but have a much better relationship with my clutch now, though it doesn’t have as much feel as I was expecting.
At the end of the day, I still have the original slave design in there but I have taken the accumulator which also fails out of the loop so one less thing to worry about.
Wasn’t a perfect job but it was my first time doing it and couldn’t find answers to some of my questions. Now I understand the circuit completely.
- Dave
I was trying to avoid splitting the reservoir/pump for fear of getting pentosin everywhere. The only instructions I could find for doing this said “have rags everywhere to catch the pentosin before it ruins your paint.” Had I known you could just take to top off of the reservoir and get every last bit out first, I would have done that from the start. That was the tipping point for me. Once that fear was removed, it was an easy choice.
It took me about a week to get used to the weight of the new setup and I have yet to remove the helper spring (in mostly because that noise is incredibly annoying) but have a much better relationship with my clutch now, though it doesn’t have as much feel as I was expecting.
At the end of the day, I still have the original slave design in there but I have taken the accumulator which also fails out of the loop so one less thing to worry about.
Wasn’t a perfect job but it was my first time doing it and couldn’t find answers to some of my questions. Now I understand the circuit completely.
- Dave
#83
Three Wheelin'
So, has anyone confirmed you can just pull the coupler and leave everything else in place to accomplish a GT2ish conversion, meaning getting rid of that unnecessary assist?
Also, I was wondering if anyone thought the failures was because of the assist beating the crap out of the slave?
Ed
Also, I was wondering if anyone thought the failures was because of the assist beating the crap out of the slave?
Ed
#84
So, has anyone confirmed you can just pull the coupler and leave everything else in place to accomplish a GT2ish conversion, meaning getting rid of that unnecessary assist?
Also, I was wondering if anyone thought the failures was because of the assist beating the crap out of the slave?
Ed
Also, I was wondering if anyone thought the failures was because of the assist beating the crap out of the slave?
Ed
I’ve gotten used to the heavy clutch after a week so it’s not as bothersome anymore, but I still feel like it lcks the feedback of a proper clutch set up. Eill be installing a gt2 slave soon so I’ll be able to compare.
#85
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I’d echo all of the above.
#86
Appologies for all the typos; was sending that while I was sitting in traffic 😊
I will also try to post up a pic of a pretty cool tool I used to get to the driver’s side bolt of the reserviour. The one at the back is still a total pain in the *** through.
I will also try to post up a pic of a pretty cool tool I used to get to the driver’s side bolt of the reserviour. The one at the back is still a total pain in the *** through.
#87
Three Wheelin'
Cool, so pull the pump, disassemble, remove coupler, reassemble and no more assist.
Unfortunately yesterday I noticed some PS Pump noise, so my slave may already be stealing fluid from the PS reservoir. The question is whether removing the coupling will allow me to avoid replacing the slave. I really think the death of these components is due to the high pressure feed from the PS pump. I have to look at the accumulator and see what's going on there. I'll do that when I get back from reffing a game tonight.
Long and interesting read. Felt like I was right there with you as you went through all the steps to get here. Nice to see all the responses and help offered along the way and great job with the photos - is photography a hobby or does your attention to detail bleed over into your photo taking!
Great job and I will be curious to see what new tool I can add to my stash - the only complaint my wife gives me about my service technician alter ego, she likes when I save the money, but will occasionally question, "Do you really need that tool?" with the answer always being something like, "Yes, I need that $100 crank lock so I can change the timing belt and save $600." (on my old Audi S6).
Ed
Unfortunately yesterday I noticed some PS Pump noise, so my slave may already be stealing fluid from the PS reservoir. The question is whether removing the coupling will allow me to avoid replacing the slave. I really think the death of these components is due to the high pressure feed from the PS pump. I have to look at the accumulator and see what's going on there. I'll do that when I get back from reffing a game tonight.
Long and interesting read. Felt like I was right there with you as you went through all the steps to get here. Nice to see all the responses and help offered along the way and great job with the photos - is photography a hobby or does your attention to detail bleed over into your photo taking!
Great job and I will be curious to see what new tool I can add to my stash - the only complaint my wife gives me about my service technician alter ego, she likes when I save the money, but will occasionally question, "Do you really need that tool?" with the answer always being something like, "Yes, I need that $100 crank lock so I can change the timing belt and save $600." (on my old Audi S6).
Ed
#88
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Cool, so pull the pump, disassemble, remove coupler, reassemble and no more assist.
Unfortunately yesterday I noticed some PS Pump noise, so my slave may already be stealing fluid from the PS reservoir. The question is whether removing the coupling will allow me to avoid replacing the slave. I really think the death of these components is due to the high pressure feed from the PS pump. I have to look at the accumulator and see what's going on there. I'll do that when I get back from reffing a game tonight.
Long and interesting read. Felt like I was right there with you as you went through all the steps to get here. Nice to see all the responses and help offered along the way and great job with the photos - is photography a hobby or does your attention to detail bleed over into your photo taking!
Great job and I will be curious to see what new tool I can add to my stash - the only complaint my wife gives me about my service technician alter ego, she likes when I save the money, but will occasionally question, "Do you really need that tool?" with the answer always being something like, "Yes, I need that $100 crank lock so I can change the timing belt and save $600." (on my old Audi S6).
Ed
Unfortunately yesterday I noticed some PS Pump noise, so my slave may already be stealing fluid from the PS reservoir. The question is whether removing the coupling will allow me to avoid replacing the slave. I really think the death of these components is due to the high pressure feed from the PS pump. I have to look at the accumulator and see what's going on there. I'll do that when I get back from reffing a game tonight.
Long and interesting read. Felt like I was right there with you as you went through all the steps to get here. Nice to see all the responses and help offered along the way and great job with the photos - is photography a hobby or does your attention to detail bleed over into your photo taking!
Great job and I will be curious to see what new tool I can add to my stash - the only complaint my wife gives me about my service technician alter ego, she likes when I save the money, but will occasionally question, "Do you really need that tool?" with the answer always being something like, "Yes, I need that $100 crank lock so I can change the timing belt and save $600." (on my old Audi S6).
Ed
The coupler removers the power assist but the slave has the check valve in it that goes bad and steals the fluid.
#89
Three Wheelin'
Looks like I am diving under the car.
Noise was lack of fluid, topped it off with a little Pentosin, so where is it going? Took the cover off the accumulator area in the trunk and clean as a whistle and normal level.
So why don't I have a mess under the car? Put about 2.5K miles on it since getting it, assuming they topped it off then, dropped enough fluid to make noise, puddled on one of the under body panels? Sipped up by the Pentosin gremlin I purchased with the car?
Only time will tell.
Ed
Noise was lack of fluid, topped it off with a little Pentosin, so where is it going? Took the cover off the accumulator area in the trunk and clean as a whistle and normal level.
So why don't I have a mess under the car? Put about 2.5K miles on it since getting it, assuming they topped it off then, dropped enough fluid to make noise, puddled on one of the under body panels? Sipped up by the Pentosin gremlin I purchased with the car?
Only time will tell.
Ed
#90
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Mine wasn’t leaking enough to see a puddle but when I went to do an oil change, noticed a shiny drop pooling at the bottom of the transmission...that was the leak form the slave above.