Re: [DML] Brake Caliper Seperation
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Re: [DML] Brake Caliper Seperation



Here is another possible reason not to separate the caliper 
assembly...back in the late 80's I rebuilt the front calipers on my 
1980 Volvo 244DL. I had both sides apart at the same time, cleaning 
everthing up in there and replacing all the rubber bits. I put it 
all back together and experienced the "pedal goes all the way down 
no matter how much I bleed" syndrome. Foolishly, I suspected the 
master cylinder, and bought a new one. Same problem. Hmm, "maybe I 
used the wrong type fluid and ruined the new master." Bought yet 
another. Same problem. With great reluctance I took the car to a 
local shop. Three hours later they called with "your car is ready".

What did they find? "You had mixed up half of one side with half of 
the other." This mismatch had created a pocket of air that could not 
be expelled during bleeding. Did I ever feel foolish.

You would think that the manufacturer would have designed the halves 
to make this misassembly impossible, but that was not the case with 
those calipers.

Marty Galbreath
#3765

Still with 2 new 1980 Volvo master cylinders on the shelf:)








--- In dmcnews@xxxxxxxxxxxxxxx, "Elvis Nocita" <elvisnocita@xxxx> 
wrote:
> They say that because those are special bolts that shouldn't be 
reused,
> like the cylinder head bolts. same story.
> 
> I did that, too several times yet and never had a problem.
> But if there's a problem....I'll be in big trouble I guess.
> 
> Elvis
> 
> 
> 
> I just rebuilt one of my calipers last night. I put in new pistons 
and 
> seals.  In reading my shop manual it says "DO NOT SEPERATE THE TWO 
> HALVES OF THE CALIPER"  It doesn't say why.  I did seperate the 
two 
> halves of the caliper by removing the 4 bolts with no problem what 
so 
> ever.  I even put it back together with no problems.  
> 
> Does anyone know why the caliper should not be seperated?







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