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Line Lock on a 99.......

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Old Sep 17, 2007 | 06:15 PM
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Default Line Lock on a 99.......

I need a line lock. I am NOT willing to spend $250 for a solenoid and a couple of brake lines that I can bend myself and an electrical switch I already have. I've researched through the archives here and some various sites, and thought I had it nailed down until I looked under my hood.

My 99 has the master cylinder, then a dist block under the master cylinder, then the main distribution block located in front of the motor. I presume that I can't simply place the solenoid in-line of the rear most line from the master cylinder to the first dist block, so where do I need to locate it?? Or is my presumption wrong and I"m in for bending some tiny lines? CAN supply pics if necessary. TIA
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Old Sep 17, 2007 | 11:23 PM
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Anybody?????
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Old Sep 19, 2007 | 12:18 AM
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Bump again, need some info now. I found adapters, got my parts order all lined up (haven't ordered yet) and then I took another look tonight, and yup, the Corvette just HAS to be different. Instead of the normal 3/16 brake lines, they're 1/4" brake lines.

Will I be ok to run the 3/16" brake lines or do I need to do some playing and figure out how to make the 1/4" lines/fittings work?
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Old Sep 19, 2007 | 02:01 PM
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Someone help this guy out. I would like to know also.
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Old Sep 19, 2007 | 02:06 PM
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You need to run a line from the soleniod to the distrubution block. Give me 2 mins and I will snap a pic for you of mine.
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Old Sep 19, 2007 | 02:17 PM
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Here is where you need to run your hard line off of the soleniod. It is to the distrubution block on the front of the motor. Just run it to the one that says RF on it. That is the right front tire. It is enough to hold the car still.

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Old Sep 19, 2007 | 06:32 PM
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You've got a later car than I. I have a 99 with the Proportioning valve that's under the master cylinder. Beer99C5 put his inbetween the master cylinder and the proportioning valve, and others have gone between the proportioning valve and the abs box. It seems that both work.

I have what I need. After extensive searching, the proper fittings for a simple bolt in affair dropped into my lap today. I'm going to be preparing a full write up with a parts list, pics, ect., for the 99's at least. Let me get my hands on some earlier and later year cars and I can probably put something together for those too.

I just hate the fact that all the Line Lock kits out there cost so much money for less than $70 in parts.
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Old Sep 19, 2007 | 07:15 PM
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http://corvetteforum.shelor.net/Line_Lock/default.asp

Maybe this helps? If you figure it out send me a PM with all the instructions. I'd also rather put together a kit vs. paying someone else 2x the money.
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Old Oct 1, 2007 | 01:08 AM
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FYI, I have NOT forgotten about this. I was supposed to have all afternoon yesterday and all of today off. Sadly, I ended up working from 0500-1400 at my Air Force job and then 1600-2230 at my part time job yesterday, then back in at 0500-1500 today at my Air Force work again (missions breaking and slipping, buncha broke **** jets).

So, here's where we're at with this. I have all necessary parts and adapters. The ONLY stacked adapters I'll be using is the adapters for the 1/4" line to the Line Lock. I found 1/4" line fittings with the correct metric threads for adaptation to the GM stuff.

Tonight I got the bracket fabbed for mounting the solenoid. I eyeballed it and got lucky the first time, and it's going to mount to the master cylinder bolts on the booster. Made it out of 1/8" aluminum.

Right now I'm at odds of placing the line lock solenoid in between the Master cylinder and Proportioning valve, or between the proportioning valve and the ABS distribution block. I'm leaning towards the first because the stock lines from the prop valve to abs dist block have a stainless flex section and I feel it's there for a reason.

I'm hoping to finish this installation up tomorrow as all I've got left to do is bend the brake lines, install them, bleed the system, and wire the switch up. Fully finished with write-up is hopefully going to be done by the end of the week.
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Old Oct 1, 2007 | 09:26 AM
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post the pics when your finished
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Old Oct 1, 2007 | 09:46 AM
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Originally Posted by Fastbird93
So, here's where we're at with this. I have all necessary parts and adapters. The ONLY stacked adapters I'll be using is the adapters for the 1/4" line to the Line Lock. I found 1/4" line fittings with the correct metric threads for adaptation to the GM stuff.

Tonight I got the bracket fabbed for mounting the solenoid. I eyeballed it and got lucky the first time, and it's going to mount to the master cylinder bolts on the booster. Made it out of 1/8" aluminum.

Right now I'm at odds of placing the line lock solenoid in between the Master cylinder and Proportioning valve, or between the proportioning valve and the ABS distribution block.
There must be several flavors of 99s. On mine the proportioning valve was on the line for the rear wheels (see pics below). It's on the line for the fronts on yours?
I'm leaning towards the first because the stock lines from the prop valve to abs dist block have a stainless flex section and I feel it's there for a reason.
My take on the flex portions of the stock lines is that they are there to aid in installation on the assembly line. The MC and the ABS block should not see much in the way of relative movement. I ended up replacing the line from the solenoid to the ABS block with a hard line on my line lock installation, and so far so good. For the rest of my install, see this thread.


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Old Oct 1, 2007 | 11:05 AM
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Default Nice post

I was planning to do the same install, yet I was confused with the sizes of lines and bolts; this is what I gather:

- Master cylinder to EBCM:
Nut is 12mm x 1.5 fitting
Line is 6 mm
- EBCM to wheels
Nut is 10 mm
Line is 4mm

Does anyone confirm ?

Thanks a lot
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Old Oct 1, 2007 | 01:16 PM
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Originally Posted by BlueThunder2000
I was planning to do the same install, yet I was confused with the sizes of lines and bolts; this is what I gather:

- Master cylinder to EBCM:
Nut is 12mm x 1.5 fitting
Line is 6 mm
- EBCM to wheels
Nut is 10 mm
Line is 4mm

Does anyone confirm ?

Thanks a lot
I can confirm that the MC to Prop Valve, both ends are 12mm x 1.5 and the line is 6mm. I haven't checked the ABS to wheel because I've got no reason to go there.

FRC Joe, I take it you have an FRC there. Does it have Active Handling??? Reason I ask is because in my service manual my proportioning valve is listed as the Active Handling and Traction Control Proportioning valve.

I would have mounted my solenoid like yours, but I have a washer resevoir full of methanol and I don't want to screw around with emptying that tank to remove it, so I'm mounting mine horizontally on the passenger side of the Master Cylinder right at the bolt. I"ll have pics up.

Anyone notice that summit doesn't have a part number for their line lock solenoid (the one that FRC Joe and myself have)??? I went there yesterday to look for the instructions to verify it would horizontally mount, and there was nothing.
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Old Oct 1, 2007 | 01:42 PM
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Originally Posted by Fastbird93
FRC Joe, I take it you have an FRC there. Does it have Active Handling??? Reason I ask is because in my service manual my proportioning valve is listed as the Active Handling and Traction Control Proportioning valve.
Nope no active handling here. That must be the difference. I look forward to seeing the pics
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