LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

91LS Master Cylinder

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Old 12-15-10, 07:09 PM
  #1  
JimsGX
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Default 91LS Master Cylinder

Hi Guys,

Rock Auto had a good deal on some LS400 parts inventory so I picked up a brand new master cylinder for my 91 for around $90... I've had inconsitent pedal feel sometimes, but consistently, it takes a lot of foot pressure to stop and its almost impossible to get the ABS to kick in.

I know I have to bench bleed it before installing, then bleed all four corners...

Just wondering what to expect after removing the three master cylinder bolts from the brake booster. The back of the master cylinder looks like it would just accept a rounded rod that would slide into the center of it from the booster. Is it as simple as that? Any pointers from someone that's done this would be appreciated.

Thanks
Attached Thumbnails 91LS Master Cylinder-ls400-brake-master-cylinder.jpg  
Old 12-16-10, 11:29 AM
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oldskewel
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Hi, I rebuilt the MC in my '91 a year or so ago. I don't remember details, but it was very obvious and easy. No tricks needed here. Good luck.
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