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Old 04-24-09, 01:12 PM   #2 (permalink)
Jan-78FJ40
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Join Date: Sep 2002
Posts: 1,796
Quote:
Originally Posted by Spike Strip View Post
Really a 2-part problem:

1- Which Master Cylinder for 4Runner Calipers?

I see some MC's for T100, pickup, etc., have a Brake Fluid level sensor, some don't. Anyone know if the sensor (like in this LINK ) will work with the stock FJ60 ? Are those 1" bore?

The one Marlin Crawler lists LINK does not seem to have the sensor.

2- I put some 4Runner calipers on and am having a lot of trouble bleeding the brakes. Don't know what is going on. I've gone through a couple of big bottles, now, and the pedal still goes to the floor. First pedal press is stiff, but goes to the floor, then much softer after that.

When I bleed the brakes (starting at the RR), there isn't much of a stream being pushed out the bleeder, just a weak spurt, and some air. Everything seems to be working. No Leaks. I even bled the Stock MC again and still no change. Stock is good, but I'm thinking a larger-bore MC might help?

Any suggestions?

You said that you pushed 2 bottles of fluid through. did all of that trickle out of the bleeders, or is there a chance you are losing it elsewhere?

Do you get a stronger stream when you unhook the line that goes into the caliper?

It seems you have a leak somewhere, combined with a blockage. chances are it is in the newly installed parts.

do you also get only weak dribbling from the rear cylinders (which I assume are original)?

Your master could definitely be bad. did you check behind the master, whether there is fluid going into the booster?

cheers,
J

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