Routing to master cyl?

[Guest Anonymous]

okay, I'm replacing my mc in a mechanical clutch car with single line brakes. I have the plugs (allen socket) from the "original" one but wasnt sure if it was plumbed right to start, possibly causing this failure. the new and old both have 5 outlets (old having 2 plugged). the bottom, seperate front being the rear brake lines. the question is for single line brakes, should I run them both (left & right calliper lines) from the same side IE: left & right lines to the set nearest the booster, or the set nearest the front, or one in the front & one in the back set of holes? Do the front & rear expell the same volume/ pressure? it looks like the lines are not original, nor was the bad m/c, so I'd like to know if it was done right before I go re-installing it the same way, seing as how it failed. While I have the m/c, booster, and battery out, and am awaiting a reply, I'll be wirebrush/ sanding & priming the surface rust around the battery tray/ fender. I may be poor, but I know a good opertunity for repair prevention when I see it! Thanks in advance for your replies.

[winstontj]

okay, I'm replacing my mc in a mechanical clutch car with single line brakes. I have the plugs (allen socket) from the "original" one but wasnt sure if it was plumbed right to start, possibly causing this failure. the new and old both have 5 outlets (old having 2 plugged). the bottom, seperate front being the rear brake lines. the question is for single line brakes, should I run them both (left & right calliper lines) from the same side IE: left & right lines to the set nearest the booster, or the set nearest the front, or one in the front & one in the back set of holes? Do the front & rear expell the same volume/ pressure? it looks like the lines are not original, nor was the bad m/c, so I'd like to know if it was done right before I go re-installing it the same way, seing as how it failed. While I have the m/c, booster, and battery out, and am awaiting a reply, I'll be wirebrush/ sanding & priming the surface rust around the battery tray/ fender. I may be poor, but I know a good opertunity for repair prevention when I see it! Thanks in advance for your replies.

Ummm... Is this a 2002 or even BMW MC? fish around on www.realoem.com and take a look at your model & year car. it shows which front & rear, left & right pipes go where on the MC.

HTH,

TJW

[Guest Anonymous]

Yes this is a 1602, and I frequent this board often. the roomates have been "working" on the computers for a while, and I cant login to any sites yet, so I'm using my initials rather than my usual username. realoem was my first stop. it has all the lines in most of the diagrams, but only the single rear line was labled in 2 of them, and the other 4 cant be distinguished where they go.

Anyhow, I just assumed that all the others go to the same places and therefore SHOULD push the same volume & pressure. if this reasoning is incorrect, someone please chime in and let me know sometime tonight, as I plan to plumb and bleed everything tomorrow when I have light again.

[winstontj]

Yes this is a 1602, and I frequent this board often. the roomates have been "working" on the computers for a while, and I cant login to any sites yet, so I'm using my initials rather than my usual username. realoem was my first stop. it has all the lines in most of the diagrams, but only the single rear line was labled in 2 of them, and the other 4 cant be distinguished where they go.

Anyhow, I just assumed that all the others go to the same places and therefore SHOULD push the same volume & pressure. if this reasoning is incorrect, someone please chime in and let me know sometime tonight, as I plan to plumb and bleed everything tomorrow when I have light again.

so you want to use a double line MC for a single line brake system? Why not look for an E21 320i MC? you could pull one from a junk yard for like $5. Either way just plug up the two front holes. Rear line goes back as single and goes to a splitter under the rear seat/back of the driveshaft. so you'll have three lines off the MC, FL, FR & Rear. Clutch should be flex line like the line from the resirvoir to the MC.

hope that helps. If you plug the two holes for the front brakes it shoudn't matter in terms of stopping power. bleeding will be more crittical because more fluid will have to move. assuming the caliper piston diameter is the same size the only difference is you'll push twice the fluid through the single hose but all will work the same. bleed extra good though.

[NickVyse]

If you've got a mechanical clutch then this is an early car yes? With the remote servo? Sounds like a strange MC you've got there - mine has one outlet going to the servo, with the output of the servo splitting 3 ways (front R, front L and rear).

Or have you got something completely different? A lot of these cars have been changed to the later 2002 servo/mc set up so you may have a weird hybrid.

Nick