Posted by Ben on August 24, 02 at 09:55:27:
Bought a higher psi master cylinder and am going to put it in when I do the *FIFTH* hydrobooster! If this HB also leaks, I'm going to go with an OEM HB ($829.00 from GM parts counter).
Anyway, back on topic, can't find my old MC bleeder set up and looked at the latest kits available. PURE JUNK! Plastic pieces don't fit right and leak (oxymoron, leaky set up trying to get air out of the system). Old set up was from junk yard, where I just cut off the metal tubing from the MC. Bent them back into the MC reservoir. Simple and same principle new plastic kits "try" to do.
Was at NAPA talking to them about the different hydrobooster and the leaks I've had from another suppler (they too confirm some suppliers leak from the get go). Asked about the master cylinder bleeder kits. They pointed to the "help" rack and the cheesy plastic kits and stated that they know EXACTLY what I'm talking about, but there aren't any good kits on the market for DIYers. Happened to be standing right next to their replacement brake tubing rack when it struck me...why not just buy a length of those replacement brake tubes, which has the double flared ends AND the flare nuts already done to SAE specs! Asked price of largest dia and longest (6footer) and it was $4.95! Cool!!!! Shorter ones (12 inch) was $2.98!!!!!
Just buy the right sized steel tubing with the double flare ends and flare nuts, cut off the other end (or leave it on) and bend it back into the MC reservoir (bender with mandrels for 5 different dia tubes is $9 bucks). Can now do it for less than $20 bucks!!!!
Am going to measure the flare nuts (put a wrench on them) and go buy the tubing. Will also bring the new MC to double check.
For those who haven't heard of bench bleeding the master cylinder...in some cases no amount of pressure bleeding or two person bleeding will get the air out of the master cylinder. Only way known is to use the short return tubes going right back into the reservoir. There are nay sayers, but this has proven to be the cure of many "soft"/"spongy" pedal problems.