TIZIO AKA 1 HND MEC Posted November 25, 2013 Report Share Posted November 25, 2013 Last night the car drove just fine, this morning went in and the clutch pedal is on the floor!!! NO LEAKS or OIL SPOTS under the car, usually i park the car in the garage but other night I left it outside (18 F). Level on the brake reservoir is a bit lower than usual, slave cylinder is 8 months old, master is 2 1/2 yr old( 35.xxx miles on it) lines are dry . What are the possibility guys? Link to comment Share on other sites More sharing options...
Ihatespeedbumps Posted November 25, 2013 Report Share Posted November 25, 2013 Internal or external slave? You could always try bleeding and see what happens, but I'm guessing you have a leak you just haven't found yet. http://volvospeed.com/volvo_repairs_how_tos/transmissions_driveshafts/volvo_reverse_clutch_bleed.html Link to comment Share on other sites More sharing options...
Dick Dastardly Posted November 25, 2013 Report Share Posted November 25, 2013 Did the lock brace come off and all fluid drain? Remember only the top 1/4 inch of the reservoir is for the clutch... Link to comment Share on other sites More sharing options...
Kiss4aFrog Posted November 25, 2013 Report Share Posted November 25, 2013 Or you have a an internal failure of the "cups" inside the master or the slave and it's just bypassing the fluid. It would be early for either to fail but that is a possibility. Link to comment Share on other sites More sharing options...
TIZIO AKA 1 HND MEC Posted November 25, 2013 Author Report Share Posted November 25, 2013 Sorry, is internal. So far no lines loose by eye (car still outside), and yes the top reservoir for the clutch line is almost empty. I will bled'it today and post back, thanks guys. Link to comment Share on other sites More sharing options...
TIZIO AKA 1 HND MEC Posted November 26, 2013 Author Report Share Posted November 26, 2013 I bleed the clutch, fill up the brake fluid and I can drive the car for now. I do have a small leak from the Y connection(bleeder) and the slave when I press the pedal. Link to comment Share on other sites More sharing options...
Dick Dastardly Posted November 26, 2013 Report Share Posted November 26, 2013 Slow/small leak will cause this quick as reservoir is only @1/4" for clutch. Link to comment Share on other sites More sharing options...
TIZIO AKA 1 HND MEC Posted November 29, 2013 Author Report Share Posted November 29, 2013 I am on the way to make a dedicate reservoir just for the clutch system and ad another bleeder on the line. I will post some pictures when done. Link to comment Share on other sites More sharing options...
rcstdad Posted December 16, 2013 Report Share Posted December 16, 2013 So what did you figure out on this? My car did something very similar over the weekend. Drove to dinner, everything working perfect. Get back in car from dinner, and pedal goes to floor. No resistance at all. I have external slave and both it and the clutch mc are new as of this past summer. No leaks anywhere. I've already ordered another mc, thinking that's what the problem is. The slave appears to be in the fully extended position, as in, I can compress it by hand, and it extends back out. This makes no sense to me, as my mind tells me that when it's extended, the release bearing should be pressing on the pp fingers to dis-engage the disc. However, if I start the car in gear, it's definitely not dis-engaged. Link to comment Share on other sites More sharing options...
woah4 Posted December 16, 2013 Report Share Posted December 16, 2013 I went through 3 slaves before I realized that the ones I was buying from napa were incorrect, even though they assured me that turbo and NA slaves are the same, they are NOT and you need a turbo specific slave, it contains a circlip which prevents the piston from exiting the cylinder, while the NA one does not. I was quite upset about this after buying three at napa at $160 a piece and also doing the line and master thinking something was letting air get trapped.. It was the slave all along. I am external btw. I got my new one from rock auto for $60 shipped to my door and it was turbo specific, got it about a year ago now and knock on wood I haven't had an issue, the other ones would last about a month and then they would pop. Also worth noting, the rock auto one did not come with the rod between piston and fork, And the NA rod will not fit... It is too short, the clutch engages but will not disengage. I have not been able to find that part anywhere so I cut a bolt to a length I felt was appropriate and it has worked fine... Just thought people should know so they don't go through what I did... Cheers, Billy Link to comment Share on other sites More sharing options...
DAYWALKER Posted December 17, 2013 Report Share Posted December 17, 2013 What! That is crazy.thanks for sharing. Good to know for future reference. Link to comment Share on other sites More sharing options...
rcstdad Posted December 17, 2013 Report Share Posted December 17, 2013 Yeah, thanks for posting that. That'd sure be alot easier to replace than the mc!! Link to comment Share on other sites More sharing options...
TIZIO AKA 1 HND MEC Posted December 17, 2013 Author Report Share Posted December 17, 2013 I bled the system three time so far, fill up the reservoir etc. all work fine for two days then out of the blue is a big mess under the car. Seems like the slave do not hold pressure more than two days ( is new 5.k). Link to comment Share on other sites More sharing options...
rcstdad Posted December 17, 2013 Report Share Posted December 17, 2013 Also worth noting, the rock auto one did not come with the rod between piston and fork, And the NA rod will not fit... It is too short, the clutch engages but will not disengage Can't figure out why this would be the case. Other than the overall thickness of the clutch/pp setup - I see no other reason why the rod would be different. I did notice different part#'s on R.A. though. The slave I bought was for a NA though, so I will try the turbo version and see what happens. You have any rough idea of about how much longer the rod you made was? Link to comment Share on other sites More sharing options...
woah4 Posted December 17, 2013 Report Share Posted December 17, 2013 Not off the top of my head but I can measure it later, what happened was I had the car parked elsewhere after the salve blew and was driving my t5-r, and I was told the car had to leave where I had it parked, which is 2 hours from home (had it towed there) so I got the slave and figured I would just install it where the car was parked and drive it home. Well I did, but when I pushed in the clutch it was the exact opposite of what usually happens lol... It was grabbing fully and no matter what I did with the pedal it would not release... So I drove it home rev matching etc. and stopping as little as possible haha. I really didn't know what was Wrong but I got home and looked at it more and thought maybe the rod is too short? I didn't get one with the new slave, so to test my theory I cut a piece of threaded rod I had a bit longer than the NA rod and tried it, it had been fine since. One thing to note, I don't know if the fact that it didn't work was clutch thickness (could be) or maybe because my 850 is a factory T5M and maybe there is some difference in the tranny... Who knows. I can't remember at this point but the new slave itself may have even been longer, but I think the difference was just the circlip on the inside. But I realized the problem I had been having with the others was because either the rod was too short or the lack of circlip it would work for awhile and then one day the piston would pop out of the cylinder and lose all pressure... Usually after sitting over night when I went to pull out of the driveway for some reason. But this is impossible with the turbo slave as the only was to remove the piston is to remove the circlip. I'll try and get better pictures later, cheers Billy Link to comment Share on other sites More sharing options...
.jpg.ff15e5ad1dcbf3d7b80e09c86d8da5d4.thumb.jpg.465fb159f5dbe2a47eee3586d48c8b8c.jpg)
Recommended Posts
Archived
This topic is now archived and is closed to further replies.