Symptoms of busted Clutch Master Cylinder?

[Kidd636]

Paano malalaman kung sira na ito?

[clutchdriver]

Check your fluid first. If you haven't lost any fluid, you probably don't have an outside leak. Check for air in the line by bleeding the slave cyclinder.

If your clutch doesn't work, have someone step on the clutch pedal then open the bleed valve of the slave cylinder very slightly. You should get a spray of fluid, maybe some air bubbles. If not, the rubber on the plunger of your master cylinder imay be completely gone. If you can bleed with the first pump on the clutch pedal but not on succeeding pumps, the master cylinder may be clogged. (There's this tiny hole that lets fluid back into the chamber when the clutch is released)

If the clutch still works somewhat, step on the clutch pedal for a long time. If your clutch starts to engage slowly while you are still stepping on the pedal, you have a slow leak in the master cylinder. Either the chamber walls are damaged or the rubber on the plunger needs replacing.

[trebor]

Sir pano naman kung ang nangyayari,after a long drive and stop ka.after few hours standby,start engine tapos tapak sa clutch,lusot ang clutch as in walang pressure ang tulak.Nangyari sa kin yon,I tried na i-adjust yong pedal then naging ok ang clutch pero after mga 20 km run naramdaman ko tumataas ang clutch ko so I have to stop and re-adjust again.Ano kaya problema non?Master or slave?
Need assistance please..

[jim]

Sir pano naman kung ang nangyayari,after a long drive and stop ka.after few hours standby,start engine tapos tapak sa clutch,lusot ang clutch as in walang pressure ang tulak.Nangyari sa kin yon,I tried na i-adjust yong pedal then naging ok ang clutch pero after mga 20 km run naramdaman ko tumataas ang clutch ko so I have to stop and re-adjust again.Ano kaya problema non?Master or slave?
Need assistance please..

You have to check both master and secondary cylinders, although kung master ang problema you will have a difficult time pressing the clutch saka madaling tignan ang master kung may leaks. The secondary needs to be removed for thorough inspection kasi may housing yun at kahit may leak na sya hirap pa rin tignan. Kung matagal na pahahon na di ka pa nagpapalit ng master at secondary maybe its time you replace them na.

[orly_andico]

what about if the clutch has lots of free play and has to be almost on the floor to disengage the clutch? but other times it's ok (decent amount of pedal travel, particularly if the clutch pedal is pumped).

had my clutch disc etc. replaced a couple years ago, the master cylinder a few months ago (thanks to banaweonline, replacement nga lang coz an OEM clutch master is 5 grand). but now this. am not sure if a leaky slave will cause this (but i don't seem to be losing fluid now..)

[speedyfix]

see where the leak is comming from and replace it accordingly.

[BeetOls]

as preventive...how long do these master/slave cylinders last? what's their typical life span? ako kase, yung 2x na pagpapalit ko...yung 1st one buti nakatabi ako...yung 2nd one my pickup had to be towed kase inabutan ako sa kalsada (lusot clutch)...before those instances, there were'nt any signs...so as preventive maintenance? would you guys suggest these be changed yearly or every 2 years? tutal mura lang naman ang replacement...on mine, it doesn't cost me more than 2k including labor

im starting to worry kase it's been more than a year na sha...at nakakadala den maabutan sa kalsada (coz you have to pay those darn towtrucks around 2k to bring me home)

TIA!

[afrasay]

I would suggest that you change you masters with OEM ones. This would give you an idea how long it would last assuming you had the car brand new. BTW, you can still crawl home with a busted clutch master. Start the engine in first gear and RPM match your engine when you shift to second to third gear. Shift to neutral when stopping and repeat the start process when you want to move.

[v22]

from personal experience, replacement repair kits last at least a year or two and i dont let it exceed 3 years.... its easier to visually check the primary, but with regards to secondary.... you have to crawl underneath just to check if its starting to leak, which i aim to do at least once a year

[orly_andico]

ditto, i think 2 years is pushing it for a replacement or rebuild kit, and 5 years for an OEM. but the OEM parts cost 4X as much. so mas cost-effective pa rin ang rebuild or replacement.

[BeetOls]

yup...yun nga...4x ang price...summing all your expenses up...parang mas ok pa replacement...yun ngalang, mas mapapadalas ang down time ng konte since more frequent ang pagpapalit.

oh well...i still have this year before replacing it.

[fourtheboys96]

buhayin ko lang itong thread na ito.

magkano ang clutch master na surplus? brand new?

ok ba kung repair kit gamitin ko???

car is corolla GL

[v6dreamer]

buhayin ko lang itong thread na ito.

magkano ang clutch master na surplus? brand new?

ok ba kung repair kit gamitin ko???

car is corolla GL

Dont buy surplus, its just another headache to you, get a brand new one if possible. Rebuilt that Master Cylinder is a very good idea and way much better than surplus(unless rebuilt) and cheaper too. Once you rebuilt that MC same as new again.

[stryke1]

Symptoms are totally/intermittent/1st press loss clutch, leak either both master and slave cylinder....Para sa akin, mas maganda ang re condition or rebuild lang din ang gagamitin, not unless malaki na talaga ang butas ng cylinder, kasi kung bago ang gagamitin ay mas madaling masira kasi magaspang pa ang cylinder wall nito sa loob kaya mabilis maubos ang seal/goma nya, or kung bago naman paliha na lang sa gagawa ng pinaka pino na liha ang mga cylinder wall, mas maganda kung pati lumang cylinder master or slave ay maliha din...

[fourtheboys96]

bumili na lang ako repair kit para sa clutch master. pero ndi ko naliha yung loob. nilinis ko lang ng maigi gamit ang basahan kasi parang ang liit ng cylinder para maliha. crossed fingers na lang ako na ndi siya masira agad kasi wala naman talaga siya leak. yung spring sa loob ang busted. so i'm assuming ok pa yung walls ng cylinder.

dun sa slave master mejo naliha ko.

umandar naman ang kotse sa tulong ng nanay ko na umapak sa clutch habang nag bleeding ng lines

[stryke1]

dapat ay mapalitan mo ang rubber seal nya sa loob o ang goma nya kasi sira na yon na maga na sa tagal, kung hindi mo papalitan yon, useless din, kasi hindi na kaya ng spring itulak ang asembly pabalik dahil sa laki ng goma, gawin mo para maalis ang asembly sa loob, balik mo ulit ang hose nya at lagyan mo ng fluid ulit at bombahin ma ang master cyclinder para lumabas ang ilalim nya.....at saka mo linisin ng pino na liha para matanggal ang mga stuck up rubber parts sa walling at saka basahan...

[fourtheboys96]

palit naman lahat ng goma sa repair kit ng clutch master.

sa secondary master (slave) yung isa ang ndi ko napalitan kasi wala ako mabili.

hopefully tumagal sila kasi ang hirap baklasin dahil sobrang sikip ng location na clutch master.

[polyg]

huwag replacement dapat original ang ipalit... saakin 1 year lang tumagal ung replacement (nabco brand) sira na

[tip_tipid]

malamang na NABCO China yan kaya madaling nasira. Daming nagtitinda ng peke.

[Flipo]

Okay ba yung brand na FIC o Seyken?