Changed rear calipers now brakes don't stop right. HELP

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deadbunny

New Member
Just as the title says. I changed the rear calipers on my 93 hatch SI, bled them and they would stop mainly on the rears. Bled them a few more times and it still didn't change. It still is stopping mainly on the rears.
If anyone can give me a hint as to what might be happening or what I can do I would appreciate it.
 
it's probably because there was air in the rears before you swapped them out. so after the swap, you bled that air out and now the rear doesn't have that air "cushion" to delay their response. was your vehicle 4wheel disc from the factory? or were those discs swapped in? if they were swapped in, you need to get a proportioning valve off of a civic that came with 4wheel discs. it ill say 40/40 on it.
 
it's probably because there was air in the rears before you swapped them out. so after the swap, you bled that air out and now the rear doesn't have that air "cushion" to delay their response. was your vehicle 4wheel disc from the factory? or were those discs swapped in? if they were swapped in, you need to get a proportioning valve off of a civic that came with 4wheel discs. it ill say 40/40 on it.

93 hatch Si, 4 wheel disc from the factory.

to OP:
try not to double post.

did you bleed the entire brake system? fronts too? did you change pads and rotors too? maybe the fronts need new pads and rotors? replacement calipers deffinatly the same part numbers as their originals?
 
can you show me evidance of what you say is true?

google, and my reading shows me
The USDM Civic Si of 1992-1995 used a 125 hp (93 kW) / 106tq single-overhead cam D16Z6 VTEC engine, which enabled the car to hit 0-60 in 8.5 seconds.[4] VTEC activated on the intake side and not the exhaust side, which was the result of the spark plug blocking the area where the cam follower would be. Standard equipment included 14-inch steel wheels with plastic wheel covers, front/rear disc brakes, tachometer, dash clock, power sliding moonroof, cruise control, power mirrors, power steering, and driver's side airbag. In 1994, a passenger side airbag and rear speakers were added.
Again, different regions adopted different powerplants--the European and Peruvian Si's used a 130 hp (97 kW) D16A9 engine. At this time, however, the Si was not the most powerful variant of the Civic in Europe; Honda introduced to the region the Civic VTi, which featured a 158 hp (118 kW) B16A engine. The JDM version SiR carried an even more powerful B16A engine, which made 168 hp (125 kW). Civics in Japan using the SiR name included the EG6 (hatch) and EG9 (sedan) Civics as well as the CR-X Del Sol.

If 4 wheel disc are standard on the USDM model, and every other countries' highest rated model (Si is to VTi is to SiR) had a higher output motor, hopefully disc brakes continued to be the standard. So I see no reason that any Si would not come with rear disc.
 
yb is correct, i'm not really sure what i was thinking last night. but it was wrong. my apologies.
 
The car is an SI so ya, the brakes are stock. And yes I bleed all four disk brakes several times. Im trying to rule out it being the wrong part number on the rear calipers. Iv been working on hondas for several years now and the only time I came across this kind of problem is when I swapped the rear disk brakes from a 91 Acura in 91 hatch and didn't swap over the master cylinder and brake booster. However the problem was fixed when I modified the brake booster to fit the Acura's master cylinder.

The proportion was fine before I changed the rear calipers. Now the pedal goes all the way to the floor.
 
I know the EK model has to bled in a certain pattern or you'll have air in your lines and you'll be bleeding all day.

I don't know for sure if its the same for other models but the sequence is right rear, left front, left rear, front right
 
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