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On 3rd slave cylinder, why do they keep leaking?

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Old 08-24-2011, 04:12 PM   #1
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Question On 3rd slave cylinder, why do they keep leaking?

I bought a 1990 pickup recently had it for about a month now. About a week ago the slave cylinder blew going down the freeway. I bought a new one and was working great for about a week. Then that one started to leak out the rubber boot where the rod comes out to push on the arm to disangage the clutch. So I replaced that one and now today it did it again. So does anybody know what the problem is I did a search on here and google and could find nothing. I havn't replaced the master yet because the stock one looks like better than the one I got from napa. Thanks in advance and sorry for any spelling mistakes I'm posting from my phone.
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Old 08-24-2011, 04:16 PM   #2
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Quit using non OEM hydraulics.

Go to the Toyota dealer and buy one. They're on 40-50 bucks.



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Old 08-24-2011, 04:29 PM   #3
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Go to the Toyota dealer and buy one. They're on 40-50 bucks.


Hahahaha .. not here in Canada !!! dealers , and toyota Canada are truely theves here .. $136.00 bucks for this puppy

I would Try Lordco .. for maybe a better quality aftermarket piece ..


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Old 08-24-2011, 04:34 PM   #4
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Quit using non OEM hydraulics.

Go to the Toyota dealer and buy one. They're on 40-50 bucks.



Is it a big difference? I got it from napa from my buddy who works there for 18 bucks lol so I figured I'd try it. Anyways I have a napa master too if I put that in would it counter it since they are both crapier lol?
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Old 08-25-2011, 10:48 AM   #5
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Hahahaha .. not here in Canada !!! dealers , and toyota Canada are truely theves here .. $136.00 bucks for this puppy

I would Try Lordco .. for maybe a better quality aftermarket piece ..


.
$46.40 + shipping...

https://www.1sttoyotaparts.com/oempartscat.html
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Old 08-25-2011, 01:05 PM   #6
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Smile

It could be poor quality control in China the cylinder might be machined to big or the inner parts to small.

Unless some how you are over pressurizing the system some way.
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Old 08-25-2011, 03:40 PM   #7
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Hahahaha .. not here in Canada !!! dealers , and toyota Canada are truely theves here .. $136.00 bucks for this puppy

.
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yep , buy one from the USA dealer ..


.

Last edited by slacker; 08-25-2011 at 03:41 PM.
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Old 08-25-2011, 03:49 PM   #8
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I put a lordco master and slave in about 3k km's ago.. seems to be working just fine

next time ill order the parts online.. but for 80 bucks for both Im not complaining since I didnt have to wait a week and need my truck running for work
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Old 08-26-2011, 11:02 AM   #9
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Advance auto parts hydraulics are a big no-no. I have had this same trouble with brake and clutch cylinders. Best is to get OEM, whether from Toyota or the actual manufacturer. AutohausAZ.com has some high quality units. I believe Adler is the actual manufacturer of many Honda and Toyota hydraulics (have one in my Accord, it's got a couple years of use with no issues after the Autozone one crapped out in 6 months).
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Old 08-26-2011, 12:19 PM   #10
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If you still have the OEM slave, check to see if the price for a Toy rebuild kit would be cheaper. They are fairly easy to rebuild, just get a honing tool from NAPA.......
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Old 08-26-2011, 02:07 PM   #11
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make sure your pedle is not adjusted all the way out...when does the clutch engage high or low? if its to far out you could be overextending the napa slave
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Old 08-26-2011, 03:21 PM   #12
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..................and..............done!!!

http://www.marlincrawler.com/clutch/...slave-cylinder
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Old 08-24-2014, 01:02 PM   #13
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Wow, three years later and the price of an OEM mc from an online u.s. vendor has tripled. Now $115. What's up with the price hikes? I need a new one as well and will have a hard time affording that. Any other reasonable vendors recommended? May end up having to go with the Napa (ultra 8 brand) for 50 bucks.
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Old 08-24-2014, 01:09 PM   #14
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Red face

You might want to check what the Aisin ones are.

As the value of the Us Dollar drops imported parts prices are going to keep rising .
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Old 08-24-2014, 01:38 PM   #15
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I suppose our lovely currency does explain a few things, though sometimes it seems like those companies (eg the one recommended earlier in the thread) are playing stealership too.

After looking up the Aisin part no for my truck (86 22re 4runner 5spd takes Aisin cmt003) found it on rock auto. Came out to less than $30 with shipping.

Thanks for the quick reply Wyoming, you just saved me $100.

Last edited by lmg866; 08-24-2014 at 02:28 PM.
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Old 08-24-2014, 02:35 PM   #16
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Just got the same Aisin CMT-003 on amazon for $26 bucks. My old Aisin unit started to pop oddly but not leak. Switching it out fixed it.
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Old 08-24-2014, 09:48 PM   #17
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Also that the slave for the 22R/E and 3vz SC has become an uncommon part since the introduction of 5vz and 3rz generations and Toy would rather have you buy a newer generation by gouging, Its the same with the CAT going for over 1K$ at the toy dealer.


I got the autozone SC and the lifetime warrenty is great, The SC cost $13 and at that price I rather take the chance several times then spend $80+ w/o warrenty from Toy dealer.


I am actually going through this same problem with the MC, Still feel better spending less with a warrenty for the MC at AZ then Toy stealer.


When I install my SC I I push it all the way in and rub lithium grease in it.
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Old 08-25-2014, 05:09 AM   #18
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You rub lithium grease in where? Hopefully not in the internals of the cylinder -- glycol ether brake fluid and petroleum-based grease are not friends.
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Old 08-27-2014, 01:51 AM   #19
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What kind of fluid are you using?
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Old 08-27-2014, 08:28 AM   #20
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Same thing happend to me. Bought a cheap slave cylinder for my 81 pickup on Rock auto and within a week it was leaking. They sent me a new one (same brand) and it has lasted a year now. Weak quality control.

I put an Aisin slave on my 4 runner and it has been fine from day one. They aren't that expensive.
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1983, 1990, clutch, cylinder, detect, leak, leaking, leaks, napa, pickup, replace, slave, starting, toyota, truck, yotatech

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