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Author Topic:   Plastic Brake Lines, again?
Kromulous
Dirt Forum Champ
Total posts: 796
posted April 01, 2005 12:32 PM  
Bought a kit from Day motorsports, same as the Allstar deal.

Gotta question, how do connect the plastic line to SS braided line, to go out to the wheels. I'm not comfortable with running plastic out there.

I got fittings that go from 4AN (SS Line) to 3/16's (inverted flare) but the fittings that come with the brake kit are 3/16's compression & 1/8 NPT. the 1/8th NPT wont fit into the 3/16ths inverted flare of course.

1/8 NPT, is national pipe thread, so now i'm really lost.

Help !

Krom.

rpm20
Dirt Freak

Total posts: 338
posted April 01, 2005 12:58 PM  
what we do is use a compression fitting on the plastic with a small piece of steel tube and a flared end then connect to a flare by a-n adapter and to the line . i dont know but seems theres a better way, i just used what i had.

quote:
Originally posted by Kromulous:
Bought a kit from Day motorsports, same as the Allstar deal.

Gotta question, how do connect the plastic line to SS braided line, to go out to the wheels. I'm not comfortable with running plastic out there.

I got fittings that go from 4AN (SS Line) to 3/16's (inverted flare) but the fittings that come with the brake kit are 3/16's compression & 1/8 NPT. the 1/8th NPT wont fit into the 3/16ths inverted flare of course.

1/8 NPT, is national pipe thread, so now i'm really lost.

Help !

Krom.



Xtreme12x
Dirt Forum Champ
Total posts: 874
posted April 01, 2005 01:00 PM  
The ends on each corner are female right?? The kit I used from Performance uses the quick connect pushlock fittings and has male ends, then you buy the female adapter that has 1/8 NPT on the one side and the -4 fitting size on the other. The kit that was on the car when I got it was the female ends, and used an 1/8 NPT on each end, and then used the same fittings that the kit from Performance did.

istock59
Dirt Forum Champ
Total posts: 501
posted April 01, 2005 01:33 PM  
The fitting I have went from 4AN to 3/16" inv flare also. It was the kind that comes with a clip and tab that you weld to the frame.

With mine the inv flare "cone" in the fitting was a press-in brass piece. Using a small punch from the 4AN side, you could knock the cone out. Then run an 1/8" NPT pipe tap (got mine at Menards) in the remaining threads of the inv flare. (Seems like I had to shorten the tap too. As in grind).

Then your brake line 1/8" male fitting screws right into your "new" 1/8" npt to 4AN fitting.

If your "cone" isn't press in, you should be able to drill some of it away to get the 1/8" NPT tap to make threads.

[This message has been edited by istock59 (edited April 01, 2005).]

Kromulous
Dirt Forum Champ
Total posts: 796
posted April 01, 2005 01:43 PM  
Thats the adapters i need Xtreme, 4AN to 1/8" NPT.

He!! i ordered the wrong parts again today.

I may try that redrill trick, that sounds like it would work good.

It shouldnt be this hard LOL !

Looking in the Performance Bodies catalog now, i see a 1/8NPT to brake line fitting, i think that may do it.

istock59
Dirt Forum Champ
Total posts: 501
posted April 01, 2005 01:52 PM  
FWIW, the 4AN to 1/8" NPT adapters that are sold do not have a clip and tab setup. You'll have to secure them to the frame in another manner.

I like the clip and tab mount, that's why I drilled/tapped mine.


Kromulous
Dirt Forum Champ
Total posts: 796
posted April 01, 2005 02:20 PM  
Yep, i called Performance Bodies and they had them fittings. Then it hit me, my tabs i just welded on arnt going to be usefull.

I may just end up doing the tap deal, i would like to use them tabs myself.

Thanks for the heads up on that Istock59.

Istock66
unregistered Total posts: 796
posted April 01, 2005 02:32 PM           send a private message to Kromulous   Edit/Delete Message   Reply w/QuoteBBBBBB
Aeroquip # 013-2821 steel bulkhead female connector -4 to 1/8 attatchable to the tabs.

Lefthander 815 389 9999 $6.99 each

Kromulous
Dirt Forum Champ
Total posts: 796
posted April 01, 2005 02:44 PM  
Sweet, thanks.

dirtracer14
Dirt Forum Champ
Total posts: 1261
posted April 01, 2005 06:54 PM  
Here is what i do. I have tabs with holes on the chassis. You have the 1/8" pipe male to plastic lines right. Now goto the auto parts store look in the brass fittings and there is a 1/8" female by -4 male (they dont call it an 4 but works just fine) Get a few crush sleves while you are there. Now the hole in the tab you run the 90 threw with the crush washer on the 90 side and tighten your female 1/8 by -4 and you are ready to go...super cheap and should carry it at the parts store.

mod15racing
Dirt Roller

Total posts: 12
posted April 02, 2005 12:47 AM  
We use plistic line's on all of our car's you can get fitting's from Speedway for 9.95 a pair they are 1/8 npt to AN 4 they use clip's to hold them on, and on the caliper we use a 10mm to AN 4 adaptor they are 9.95 a pair also that will save you about 15.00 per wheel over using a banjo bolt set up

Kromulous
Dirt Forum Champ
Total posts: 796
posted April 04, 2005 07:16 AM  
Thanks guys, for all the tips. Got the brake lines all ran this weekend, not i gotta wait for the new calipers to arrive to put them on.


Xtreme12x
Dirt Forum Champ
Total posts: 874
posted April 04, 2005 08:53 AM  
part stores not have the metric's in stock??

Kromulous
Dirt Forum Champ
Total posts: 796
posted April 04, 2005 10:11 AM  
Friend of ours runs a tire store, he's gonna sponsor us a set of calipers for the car, fronts & rears. Just gotta wait till he stops down at the shop.

Another question, do these kits leak easy? all the connectors etc?

Xtreme12x
Dirt Forum Champ
Total posts: 874
posted April 04, 2005 12:57 PM  
you've got the snap connectors right???
Mine has the same kit, no leaks what so ever...

Elmo
Dirt Forum Racer

Total posts: 79
posted April 04, 2005 08:03 PM  
I considered the plastic kit from Day. In a rush I opted for lines from O-rielly's, less than $30 for all of it.

Kromulous
Dirt Forum Champ
Total posts: 796
posted April 05, 2005 06:47 AM  
Nope, i got the compression fittings, the kit from Day Motorsports.

I would of just went to thte local Parker store, but its hard to get there during the day for me.

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