Help locating manufacturer's name and P/N for rear calipers

Ephry73 · Post by **Ephry73** » Tue Dec 16, 2003 8:11 pm

Dave, you're absolutely correct. I think I got a little too excited there! hehehe

E

hoipolloi · Post by **hoipolloi** » Wed Dec 17, 2003 5:29 am

E,
hey got some good news.. got in touch with my buddy and he said he has no problem cutting them out for you. he still has to check with the machine shop at his work to see if he still is allowed but doesn't think it'll be a problem.

after that he can give a price.. and it shouldn't be too much. the only downside is this all might not happen till after christmas but i'll keep on him - might get it moving faster

seth

you just need these asoon as possible?

EDIT: on the other topic, do these "other options" the 320i and the volvo 240 bolt up to the brackets for the original rear calipers? do they include ebrake? would this be a better choice then to try and rebuild mine (which i've never done but pretty sure i can figure it out with some book-help)?
thanks

Ephry73 · Post by **Ephry73** » Wed Dec 17, 2003 6:19 am

Great News Seth! Thanks for letting me know.

I'm not in a hurry as I'm headed out to Oregon right now. Won't be back until after christmas. So that works out beautifully.

I already have the bigger 944 brakes for the front, and may use a different set of rotors to keep the 4x130m bolt pattern if I can get it done right., If not, then porsche wheels it is.

Please let me know as soon as you find out, and then l can arrange for payment of pickup.

E

Happy Holidays!

Dave_Darling · Post by **Dave_Darling** » Wed Dec 17, 2003 7:35 am

lmcchesney wrote: Anyone know techniques to bleed the propotioning valve? Or should I just repalce the valve with an T?

Same as the calipers--have a buddy pump the pedal and then stand on it. Crack open the outlet fitting and catch the fluid that comes out. Tighten the fitting. Repeat until your buddy's leg is sore and both of you are bored...

The T is an option, I know people who have done that and like it.

Also, the burning question, How do I tell if I have a 17mm vs 19mm master cylinder? I do not see an identifible part number. What should the outside diameter of the primary cylinder be for a 19mm ( I will assume that 19mm describes the diameter of the piston/cylinder)?

Up on top, where it's almost impossible to see when installed in the car, is a cast-in "17" or "19".

hoipolloi wrote:on the other topic, do these "other options" the 320i and the volvo 240 bolt up to the brackets for the original rear calipers? do they include ebrake? would this be a better choice then to try and rebuild mine (which i've never done but pretty sure i can figure it out with some book-help)?

AFAIK, they do bolt up in the rear, possibly with some modification. (I know people who have moved the stock brakes to the rear, and since these fit the fronts...) They are front brakes, though, and do not have any provision for a handbrake.

--DD

1_914fan · Post by **1_914fan** » Fri Dec 19, 2003 2:46 pm

What is the volvo 240 option for brakes???????

Post by **Piledriver** » Wed Dec 31, 2003 12:02 am

I put the BMW2002 4 piston calipers on my `74, had a local machinist take off .120 from mounting surface IIRC, had far too much grips vs the rear.
(and a 19mm master)

The Volvos are WAY too big from the looks of things.
(From a balance standpoint)

(The 320is supposedly work fine with the same amchining on 73>76 and bolt on 71/72s, as would the 2002 4 piston ones)

Pulled the proportioning valve, better, but STILL too much front brake bias.

Put the old fronts on the rear... PERFECT balance wet or dry, suck-your-teeth-out brakes. And no adjsutment required, the OTHER thing that sucked about the original rear calipers, venting clearance. (needs slightly longer bolts)

I keep the original rears for annual inspections...Easy to bleed with no proportioning valve!

(If someone knows of a cheap parking brake retrofit, I'm all ears, but really good brakes are more important to me vs a parking brake---I just don't park on hills...)

Ephry73 · Post by **Ephry73** » Thu Jan 01, 2004 11:36 am

Happy New year guys! Seth, any news on the brackets?

Hope everyone has their loved ones with them, and that all of our projects come out to be what we hoped for.

E

raygreenwood · Post by **raygreenwood** » Sat Jan 03, 2004 11:37 am

Piledriver. Here is a thought. Since its for parking brakes only...weld on a basic 3/8" plate flat bracket opposite the rear caliper. Use a pair ofsmall twin piston teves calipers like found on the rear of aSaab or Volvo. Cut both e-brake cables off short. Put a loop and wire clamp on the end of each to connect to a horizontal bar. That bar can drive a single circuit master cylinder on a bracket facing frontward. The single circuit will feed a pair of brake pipes just feeding the two small calipers. Kinda like cutting brakes. Ray

Post by **Piledriver** » Sat Jan 03, 2004 7:08 pm

Great idea, Ray... Might even work with an air pressure setup ala a line lok to "hold" better.

My main problem is all the junkjards around where I live generally suck, with braces.

(N of Dallas)

Grand Prarie is usually too far to go... One has to do the junkyard hunt thing, and that can take several trips.

Dave_Darling · Post by **Dave_Darling** » Sun Jan 04, 2004 10:21 pm

Or you could try a Wilwood "spot caliper", like a mechanically-actuated go-kart caliper.

--DD

oipolloi · Post by **oipolloi** » Sun Jan 04, 2004 10:39 pm

e, yeah definatly!

we're searching through the boxes of his old hotvw's for the issue with the blueprints.. there will be no problem getting them cut out but you might have to grind a little to fit. they get 2 weeks off at the end of the year so he hasn't been back to work till this week but our club meeting is tuesday so i'll get you an update then.. and hopefully a price.

happy new years
seth

raygreenwood · Post by **raygreenwood** » Sun Jan 04, 2004 10:44 pm

They make those? Cool! Here is a thought as well. The CB performance rear brake system for type 3.....I have found recently....will work great on the rear of my 412. The type 3 and 4 have the same rear drum and bearing cover...and therfore use the same spacing for that hub. Though my stub is slightly differnt, a light modification will make this fit right up.
This system uses a 914 rear rotor. I wonder....if the 914 rear bearing cover is similar enough to use the CB cast mounting? If so...maybe this system can be used on the 914. They are single piston sliding calipers...but they are large and have an E-brake hook-up that uses the stock cables on type 3 and 4.

If the calipers in the kit are not desirable, maybe the casting that holds then is. It sell for about $100 a pair for the casting, which has the bearng cover pattern and clamps between the beraing cover and the arm...in place of the brake backing plate. Ray

Ephry73 · Post by **Ephry73** » Mon Jan 05, 2004 2:42 pm

Thanks a million Seth. I don't mind grinding off a bit. Heck, it is so hard here to find the materials is not even funny. I was wondering, would he be interested in fabricating mounting brackets for 944 calipers? 10mm steel plates, and I cannot find them anywhere.

I will be waiting for an answer.

E

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Help locating manufacturer's name and P/N for rear calipers

Re: Help locating manufacturer's name and P/N for rear calip

Volvo 240 brakes