Clutch Master Cyl... is this a good one? (Page 1/1) 82-T/A [At Work] FEB 10, 02:22 PM Hey guys, just wanted to ask a quick question. My daughter is re-doing the whole front compartment of her Fiero now, and she removed the clutch master cyl so she could get to the firewall and sand it all down (to eliminate the rust from spilled brake fluid over the years of the previous owners): Anyway, the clutch master cyl that she removed was working perfectly fine... It almost looked brand new, or had been replaced at some point. As it turns out, when we bought the car, it came with a box of parts, and included in that box of parts was another brand new clutch master cyl. I took a picture (below) of the older used one, along with the new one... and they appear to basically be identical. The ONLY difference I can tell is that rod seems to be a different color, and the brand new one says "AM-43 A" instead of "AM-43" The one that was on there already (right), clearly worked, so I wouldn't hesitate to put it back on, but I am kind of interested in using the new one since it's identical. But at the same time... I don't know either of these parts, and usually like to install quality stuff when I replace parts. Anyone know the make / model of either of these (assuming the same), and is it a quality part? Thanks! Patrick FEB 10, 03:37 PM My experience with multiple Fieros is that basically any correct clutch master cylinder will work just fine, whereas it's critical to be using a dual-seal clutch slave cylinder. 82-T/A [At Work] FEB 10, 05:10 PM quote Originally posted by Patrick: My experience with multiple Fieros is that basically any correct clutch master cylinder will work just fine, whereas it's critical to be using a dual-seal clutch slave cylinder. Ok, awesome. My clutch slave cyl is from Rodney Dickman, so I'm good there. Thanks! 1985 Fiero GT FEB 10, 06:35 PM quote Originally posted by Patrick: My experience with multiple Fieros is that basically any correct clutch master cylinder will work just fine, whereas it's critical to be using a dual-seal clutch slave cylinder. Whereas I've had nothing but troubles with master cylinders especially, my original, a rock auto one, and a Rodney Dickman one have all failed me haha, original and Rodney's had internal leaks that lost pressure as I held it (or sometimes never gained pressure, just went right to the floor, as the reservoir fluid level went way up), and the perfection clutch rock auto one leaked out the banjo side bad enough to leave me with no clutch one day. Rodney sent a replacement, and that's fine for now, hopefully it will last a long time, it was his last, but I can probably clean up the bad Rodney one, fix the leaking seal if the good one goes out. Patrick FEB 10, 06:51 PM quote Originally posted by 1985 Fiero GT: Whereas I've had nothing but troubles with master cylinders especially, my original, a rock auto one, and a Rodney Dickman one have all failed me haha... There will always be odd exceptions (and Rodney had a known bad run of clutch master cylinders), but it seems that single-seal clutch slaves are all prone to sucking air eventually. Rodney's dual-seal slaves are/were great... but they're unfortunately no longer available. For now, rebuilding clutch slaves with dual-seal pistons is the best option. 1985 Fiero GT FEB 10, 08:29 PM quote Originally posted by Patrick: There will always be odd exceptions (and Rodney had a known bad run of clutch master cylinders), but it seems that single-seal clutch slaves are all prone to sucking air eventually. Rodney's dual-seal slaves are/were great... but they're unfortunately no longer available. For now, rebuilding clutch slaves with dual-seal pistons is the best option. Yeah, I understand that, although I didn't know he had a bad run, talking to him about my bad one he made it sound like it was the first complaint on any that he'd sold, I do love the "feel"and quality though haha, his stuff is top notch. Patrick FEB 10, 08:44 PM quote Originally posted by 1985 Fiero GT: ...he made it sound like it was the first complaint on any that he'd sold I'm certainly not knocking Rodney's products, as I'm a repeat satisfied customer of his myself... but yeah, there were several reports here of malfunctioning clutch master cylinders. (I don't remember if it was the 1st or 2nd generation masters.) Hey, it can happen with the best of products... and it apparently did. As far as I know, there were no problems getting replacement units from Rodney. 1985 Fiero GT FEB 10, 11:40 PM quote Originally posted by Patrick: I'm certainly not knocking Rodney's products, as I'm a repeat satisfied customer of his myself... but yeah, there were several reports here of malfunctioning clutch master cylinders. (I don't remember if it was the 1st or 2nd generation masters.) Hey, it can happen with the best of products... and it apparently did. As far as I know, there were no problems getting replacement units from Rodney. Ok, interesting, yeah, it's expected to have issues sometimes, he makes/made great stuff, customer support is top notch as well. 82-T/A [At Work] FEB 11, 07:34 AM quote Originally posted by Patrick: I'm certainly not knocking Rodney's products, as I'm a repeat satisfied customer of his myself... but yeah, there were several reports here of malfunctioning clutch master cylinders. (I don't remember if it was the 1st or 2nd generation masters.) Hey, it can happen with the best of products... and it apparently did. As far as I know, there were no problems getting replacement units from Rodney. I wonder if it's possible to rebuild these? Are there seals that we can buy to replace the ones inside there, should we need to rebuild them 15 years from now? 1985 Fiero GT FEB 11, 01:11 PM quote Originally posted by 82-T/A [At Work]: I wonder if it's possible to rebuild these? Are there seals that we can buy to replace the ones inside there, should we need to rebuild them 15 years from now? Yeah I don't know, but I assumed that that valve or whatever might have gotten some debris in it, because it worked like half the time, the other half the time it just went right to the floor, so I'll remove the piston and spray everything out with brake cleaner, see if any thing looks visibly bad, maybe/hopefully it'll work and I'll have a spare.