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i have a 89 (without abs) that needs better brakes. i have replaced my calipers, pads and master cylinder but the petal still is spongie. i was wondering what else i could do
thanks
89 brakes should not be spongy - they won't stop very quickly but pedal should be hard. You don't mention anything about rear brake work? did you install new shoes, wheel cylinders, etc? (and manually adjust the (so called self adjusters)?
Once all that is working; replace the brake hoses (2 front, 1 rear)
with new rubber or(better - SS replacements) and fill with Valvoline Synthetic - exceeds Dot 3 & 4 - brake fluid. This is the biggest improvement in stopping an older XJ.
Only then consider a later brake booster/MC setup.
With carbon fiber pads an XJ will stop in 152' from 60 MPH without changing the booster.
The rear line should be changed if its 15 years old - they baloon and reduce the pressure that should get to the wheel cylinders. Replacing the front lines on my 89 reduced the stopping distance by 43 feet from 60 MPH.
The advantace of the brake fluid is the 500 degree boiling point as opposed to 265? for Dot 3 & 4 and it costs 4.95 instead of $2.95 for the cheap stuff.
Does it matter if you use the proportioning valve from the 95 or the 89. I am going to get the parts today and was curious if there really was a difference.
Does it matter if you use the proportioning valve from the 95 or the 89. I am going to get the parts today and was curious if there really was a difference.
They are aparently the same - people have used either with same results. Plumbing the brake lines to the bottom of the valve (keeping the 95 valve to MC lines intact) means that you are only using 3/16 lines and fittings and unions - available almost everywhere. Not so on the MC side - 2 different adapters are required and not easy to find in some locations.
Okay, I'm confused. Why does a thread/poll entitled "Brake Upgrades" start with a poll asking about the best all-around tire -- which poll doesn't include any number of tires that would be legitimate contenders for best all-around tire?
Okay, I'm confused. Why does a thread/poll entitled "Brake Upgrades" start with a poll asking about the best all-around tire -- which poll doesn't include any number of tires that would be legitimate contenders for best all-around tire?
