Clutch Master Cylinder Q's - Page 2 - ZR-1 Net Registry Forums

tomtom72 · 03-03-2006

Tom,

Thank you very much for all your help and info and the time you took to share it with me!

My tracking # says I should have my new stuff this afternoon and then I can get to get'in something done. Now that I know what I should be looking for this should be a straight foward deal. I know the M/C the dealer put in has the zip tie on it I just don't remember if the metal is bare or painted. I should take back what I thought about getting hosed by them!

I wonder if they will give me credit if the parts are in fact bad? I got the slave from the same dealer too, at their parts counter.

Thank you again!

Tom

tomtom72 · 03-06-2006

Just an update. The stuff you buy from GM looks exactly like the stuff that was in the car from BG, complete with Zip Tie! My apologies to the dealer for thinking the worst.

I took apart the M/C and slave that was in the car and found no damage. What I did find was a bunch of rubber particles in both bores. In the M/C some were stuck in the holes in the piston. That is my fault because the dealer said that the M/C was leaking and nothing else. I asked for the line and slave to be done at the same time but they said "why? They are okay". I should have been more insistant. I took the car home & ordered the line & slave and should have not used the car till I installed all the new parts...I didn't and I think the hose was flaking or shedding particles and that started my occasional loss of system pressure. It took awhile to show up but eventually it did.

I learned to listen to zfdoc from this. He says "treat the system as one part". I did but not in the spirit he meant...don't do as I did! Get all the parts first and do it yourself it isn't that difficult...it's a PIA due to cramped working space but you don't have to be a genius to change out the parts. Just take your time and remove all the stuff you see that is in the way up by the M/C, it will make your task easier by a bunch! Yes the rocker + gill panel + battery and do the airbag sensor while you're there! then the line clamp on the fire wall. Then the slave, if you have a 13mm swivel socket & a line wrench you're set...the exhaust can stay put. It helps to bleed the slave and M/C before you puy them in. All the stuff comes with caps so use them to your advantage and you can even fill the line. I put the line in first, used the caps to hold fluid in it while I connected the slave to it and then refilled the line using a squirt oil can, then put the M/C in and connected the line after the M/C bolts were in abit, then do the clip was at the pedel, then tighten the M/C bolts. There shouldn't be too much air trapped so you can pump the pedel to get the rest of the air.

Tom

tomtom72 · 03-09-2006

I finally got around to examining the slave that I removed from the car and I found something interesting...I can't get the piston out? I've applied a fair amount of force to it using expanding snap ring pliers in the depression for the actuating rod. I don't think where the piston is getting stuck has anything to do with the working range of motion of the slave though. It gets stuck way past the point at which the snap ring would limit it's travel but I can't get it out of the bore!

I would have thought that the piston would come out easier than this!

I didn't have any trouble taking the original slave apart so I don't get what I'm doing wrong with the replacement slave I bought after the dealer did the M/C. This is strange.

03-03-2006	#11
tomtom72 Join Date: Dec 2004 Location: Jacksonville, FL USA Posts: 4,645	Re: Clutch Master Cylinder Q's Tom, Thank you very much for all your help and info and the time you took to share it with me! My tracking # says I should have my new stuff this afternoon and then I can get to get'in something done. Now that I know what I should be looking for this should be a straight foward deal. I know the M/C the dealer put in has the zip tie on it I just don't remember if the metal is bare or painted. I should take back what I thought about getting hosed by them! I wonder if they will give me credit if the parts are in fact bad? I got the slave from the same dealer too, at their parts counter. Thank you again! Tom __________________ 1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member

03-06-2006	#12
tomtom72 Join Date: Dec 2004 Location: Jacksonville, FL USA Posts: 4,645	Re: Clutch Master Cylinder Q's Just an update. The stuff you buy from GM looks exactly like the stuff that was in the car from BG, complete with Zip Tie! My apologies to the dealer for thinking the worst. I took apart the M/C and slave that was in the car and found no damage. What I did find was a bunch of rubber particles in both bores. In the M/C some were stuck in the holes in the piston. That is my fault because the dealer said that the M/C was leaking and nothing else. I asked for the line and slave to be done at the same time but they said "why? They are okay". I should have been more insistant. I took the car home & ordered the line & slave and should have not used the car till I installed all the new parts...I didn't and I think the hose was flaking or shedding particles and that started my occasional loss of system pressure. It took awhile to show up but eventually it did. I learned to listen to zfdoc from this. He says "treat the system as one part". I did but not in the spirit he meant...don't do as I did! Get all the parts first and do it yourself it isn't that difficult...it's a PIA due to cramped working space but you don't have to be a genius to change out the parts. Just take your time and remove all the stuff you see that is in the way up by the M/C, it will make your task easier by a bunch! Yes the rocker + gill panel + battery and do the airbag sensor while you're there! then the line clamp on the fire wall. Then the slave, if you have a 13mm swivel socket & a line wrench you're set...the exhaust can stay put. It helps to bleed the slave and M/C before you puy them in. All the stuff comes with caps so use them to your advantage and you can even fill the line. I put the line in first, used the caps to hold fluid in it while I connected the slave to it and then refilled the line using a squirt oil can, then put the M/C in and connected the line after the M/C bolts were in abit, then do the clip was at the pedel, then tighten the M/C bolts. There shouldn't be too much air trapped so you can pump the pedel to get the rest of the air. Tom __________________ 1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member

03-09-2006	#13
tomtom72 Join Date: Dec 2004 Location: Jacksonville, FL USA Posts: 4,645	Re: Clutch Master Cylinder Q's I finally got around to examining the slave that I removed from the car and I found something interesting...I can't get the piston out? I've applied a fair amount of force to it using expanding snap ring pliers in the depression for the actuating rod. I don't think where the piston is getting stuck has anything to do with the working range of motion of the slave though. It gets stuck way past the point at which the snap ring would limit it's travel but I can't get it out of the bore! I would have thought that the piston would come out easier than this! I didn't have any trouble taking the original slave apart so I don't get what I'm doing wrong with the replacement slave I bought after the dealer did the M/C. This is strange. __________________ 1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member Last edited by tomtom72; 03-09-2006 at 08:09 AM.