Had to happen again someday: clutch master cylinder went out on my 1988 B2200

Cussboy said:

My B2200 is running, I'm using closeout clutch master and slave cylinders purchased from Rock years ago. Because of my experiences with B2200 clutch hydraulics I decided to carry along spares for these, and those will be my replacements from Advance. Right now I have the replacement MC and a close-out slave cylinder as spares.

Also I had purchased a water pump from CarQuest/Advance with a lifetime warranty, but think I'll be done with Advance, just too much hassle...

Funny, the clutch hydraulics on my 1998 Nissan Frontier lasted over 265K, never flushed the system until I installed new MC and SC into it. My 2004 Frontier is still on its factory MC and slave cylinder, and the system has jever been flushed; on both of these Frontiers the brake master, calipers, and rear wheel cylinders are factory, and have never been flushed.

I always flush a hydraulic system completely after a hydraulic repair. The B2200 has been through several brake master cylinders and at least one replacement of its calipers and rear brake cylinders.

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Cussboy said:

Well, today in routine "check oil, check fluids" on my 1988 B2200, noticed that the level of fluid in the clutch master cylinder level was way low, below the lower line. I hadn't experienced any clutch issues, check everything for external leaks and saw none, even pulled back the slave cylinder boot to check for leakage there. So I suspected the rear seal of the clutch master, leaking into the truck. Yep. I had a RockAuto closeout clutch master on-hand, so installed that after bench-bleeding it. The recess on each was 21.5mm deep, so no clutch pushrod adjustment was necessary. Now someday I get to see if Advance Auto will honor the lifetime warranty on both clutch cylinders; I have cores, last time I changed out either was in 2008.
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Cussboy said:

I've had my 1988 since 1994; I've likely replaced the clutch master and clutch slave at least 5 times, flushing the system each time. I've replaced the brake master a couple of times.

My 1998 and 2004 frontiers (271K and 108K) are still on factory brake fluid and hydraulics and the 2004 on factory clutch fluid and hydraulics. I have swapped out the clutch master , clutch slave, and fluid on the 1998 a few years ago because pedal "felt funny".

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