Clutch master cylinder blown.

MazdaX · #1 12-03-2006, 04:49 PM

Well I went out the other mornign to find a bunch of DOT3 all over my floor board driver side and I really didn't think much of it just shrugged and figured I spilled some somehow or somewhere but not so..I started, warmed my car up and went to push the clutch and it felt like I was pushing a cotton wad XD so soft...mmm...soft.

Anywho, seems the master is shot..Average prives for a new one runs 80 - 100 but I found the master cylinder rebuild kit for 20 and was wondering if the rebuild is just as good as a new or reman'd one ?

God it sucks having no clutch lol..

nofear39427 · #2 12-03-2006, 10:26 PM

From hearing my dad talk about mechanical issues it seems like it would be better just to buy a new one.Ofcourse we all have different oppinions about things like that.

scizzle · #3 12-04-2006, 01:19 AM

I would definately agree. get a new one. The life of a home rebuild is not as long, or promised

Blackcrow64 · #4 12-04-2006, 01:43 AM

If done properly, any rebuild can be just as good as a brand new item... Of course, it will be much simpler and easier to just replace the entire thing with a new one.

Black99GST · #5 12-04-2006, 04:19 PM

... but not cheaper...

MazdaX · #6 12-06-2006, 08:41 PM

I went ahead and did the rebuild. I ordered a major kit, only ran me 21.00 for it all.
Anywho, it was fairly simple to do just a little pain staking to get it out as I am a fairly big handed guy and they cram packed it in the smallest corner they could.

As far as the rebuild, it went in less than 2 minutes. Procedure is a lot less expensive than taking it to a shop and anyone with a screw driver and a 12 mm socket can do it.

All there really is to it is a simple clip to hold the piston in , a small screw perhaps for volume control ? on the bottom and the new piston gromet cover for dirt protection. I did this all , reassembled the set up and now my clutch is smoother and working better than ever.

I have noticed something new though as I had been driving it for about a week having to kind of rev put in gear it is when it's idling in the mornings it sounds like there is a weird grindy noise coming from the tranny casing. Perhaps a little low on gear oil ?

Blackcrow64 · #7 12-07-2006, 12:19 AM

You may have air in the clutch lines... Did you bleed them through many times to ensure no air in it?... Also, it could have just worked tiny air bubbles out to the slave cylinder and might just need to be bled a little bit to be fine.

MazdaX · #8 12-07-2006, 01:25 AM

Yeah I went through a pint of the DOT 3 to make sure no air was in there. The clutch pedal and slave/master are working fine. The problem I am speaking of sounds like it comes from inside the transmission housing...maybe like loose gears or metal pieces bouncing around.

Blackcrow64 · #9 12-07-2006, 01:32 AM

Quote:

Originally Posted by MazdaX

Yeah I went through a pint of the DOT 3 to make sure no air was in there. The clutch pedal and slave/master are working fine. The problem I am speaking of sounds like it comes from inside the transmission housing...maybe like loose gears or metal pieces bouncing around.

Oh, it only does it when you try to put it in gear from a stop?

Mikelb · #10 12-07-2006, 11:49 AM

if this is a new problem... check that master cylinder...

Do you have full clutch pressure??? Did you prime the master cylinder before installing it?...
is anything leaking? any hoses pinched/punctured?

Does it only happen when cold???

The fluid may contract, make sure you have enough fluid in the reservoir. if there is any air in there, it will contract and compress in the cold, and especially under pressure...

It really sounds like the clutch isn't fully disengaging to me

Blackcrow64 · #11 12-07-2006, 12:15 PM

Quote:

Originally Posted by Mikelb

It really sounds like the clutch isn't fully disengaging to me

Thats what I thought at first too, but then the more I thought about it the more I realized it could be his 1st gear snycros... If they're going bad then of course he will have a hard time putting it into 1st when the car is cold from just starting. The same thing went for mine with reverse all the time... So it makes me wonder... Unless 1st and reverse doesn't have syncro's and they gears are just torn up.

Mikelb · #12 12-07-2006, 12:56 PM

Quote:

Originally Posted by Blackcrow64

Thats what I thought at first too, but then the more I thought about it the more I realized it could be his 1st gear snycros... If they're going bad then of course he will have a hard time putting it into 1st when the car is cold from just starting. The same thing went for mine with reverse all the time... So it makes me wonder... Unless 1st and reverse doesn't have syncro's and they gears are just torn up.

IIRC, 1st gear isn't synchroed... I really wish I had taken pics from my rebuild... but I don't think that they were stock... I know reverse was synchroed... But 1st gear, you are supposed to be completely stopped to engage... Don't quote me on that... look it up if you need to know for certain... but I was just wanting to make sure the small/simple things were taken care of first... rather than spend big bucks...

Blackcrow64 · #13 12-07-2006, 12:59 PM

Quote:

Originally Posted by Mikelb

but I was just wanting to make sure the small/simple things were taken care of first... rather than spend big bucks...

Of course. He assured me that he had it bled out fine though and that it worked better than ever. So I'm assuming that if its working better than ever then the problem lies deeper into the tranny... Just my thoughts though. We both could end up being wrong. lol

Mikelb · #14 12-07-2006, 01:00 PM

Quote:

Originally Posted by Blackcrow64

Of course. He assured me that he had it bled out fine though and that it worked better than ever. So I'm assuming that if its working better than ever then the problem lies deeper into the tranny... Just my thoughts though. We both could end up being wrong. lol

True, but seeing as how the problem could potentially remain in the same system... I'd double and triple check it before taking time to do anything else... just my

MazdaX · #15 12-07-2006, 04:18 PM

Uhhm well 1st can be a real bitch to put in sometimes. Like it has to 'pop' in or something. Its almost like the car lurches when i put it into 1st and I also have a few issues once in a while with 3rd being a bastard as well but it goes in smooth when it goes in but 1 out of 10 times I have to double shift it into 3rd for it to go.

As far as I can tell, the clutch and master system are working perfectly.

The noises I get are only in cold weather , if I rev if gets way louder and harsher sounding. I also noticed, I had a new tranny mouont put on 2 months ago and its the one infront, already broken.

After the car warms up to operating temperatures, I never really hear the sound not in idle or driving..so i'm confused as hell.

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