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51 Leadsled 06-10-2011 07:53 PM

Running new brake lines
 
I am running new brake lines on the chassi of my 51 Merc. Is one flaring tool better than another? Any tips or tricks you can share?

Irelands child 06-11-2011 08:43 AM

I think we need more info - for instance are you just replacing 'in kind', updating to stainless, adding power brakes, discs? Are you using -AN fittings? Old style fittings - a good Imperial Eastman will do good 45* double flares, -AN with stainless will require 37* single flares and you can use one of these RIGID tools

Dave W

51 Leadsled 06-12-2011 10:19 AM

Running new brake lines
 
I am upgrading to power disc brakes, using an under the floor board master Cly and proportioning valve. I have never used stainless, I have purchased those green coated lines and bent them and was going to cut one end, double flare them.

John

Irelands child 06-12-2011 10:33 AM

Quote:

Originally Posted by 51 Leadsled
I am upgrading to power disc brakes, using an under the floor board master Cly and proportioning valve. I have never used stainless, I have purchased those green coated lines and bent them and was going to cut one end, double flare them.

John

Then you need a decent tool - like an Imperial Eastman or a Rigid 345 series for double flaring. Not cheap junk like Harbor Freight, but one that will last a lifetime. One caution, and depending on what you have, some OEM type calipers might need a bubble flare, and that's a different can of worms.

Dave W

MARTINSR 06-12-2011 10:41 AM

I have to tell you, lines come premade in all different lengths. I just did all the lines in my Rambler and only had to cut and flare one. And you don't have to make them exactly as they were, you can have a piece of pre-made line that is a little longer and bend it a little to take up length and there you go. I was surprised that four of the five I needed to make all came in perfect lengths. One I made from two with a union in the middle.

I just walked in to the local parts store (A REAL parts store not a "McParts" store like Kragen) and got what I needed.

Brake lines (click here)

Brian

matt167 06-12-2011 11:44 AM

I do the same as Brian. No matter the flaring tool I'v used, I'v never made a good dbl flare. Only 1 that ever worked for me was the hydraulic 1 I got to use a couple times a few years ago, but I can't afford/ justify that cost when I can go to the parts store and buy the lines I need fairly cheap. living in the rust belt, I usually have a couple lengths hanging at all times. just in case.. Napa's will often have the flaring tools to make you custom lengths also...

The cheap flaring tools pretty much don't work at all, and they work 'better' as you go up in price, but it might just be me, there never 100% straight after the flare is done.. I know my local mechainc has an Imperial Eastmen, but he does lots of brake lines in the winter

MARTINSR 06-12-2011 03:11 PM

My brother has a very good tool and even then it is simply more trouble than it's worth (nothing like flaring the tube and you forgot to put the nut over the tube!) I like the pre-made ones.

Brian

scholman 06-12-2011 03:36 PM

51 LeadSled,

If you have made double flares before then have at it. I taught auto shop for 36 years and back when I was a "pup" I made all the parts but now when time is a factor I go to my guy at the parts house and buy the lines and then bend them as needed. They are sure not to leak and my temper stays under control.

Good Luck

Scholman

Irelands child 06-12-2011 04:46 PM

I guess I've been lucky as I don't recall ever having a double flare joint of the hundreds that I've made with my 40+ year old Imperial-Eastman tool leak. Follow their directions to the tee and those are easy to make.

Dave W


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