BRAKE proportioning valve :confused:


tico_ek9

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bacon has done the swap on his uk ej9 and said it was fine without chaging the valve

very true! I have a 2000 DX usdm with CTR 5-lug conversion..I did not have to change the brake booster or the master cylinder! it work's fine & I have 4 friends that also have 5-lug that did not need to change iether! I have my 5 lug for 2 yrs now with no problems!
 


Joshm88

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Blinx. The cars have been EJ8's and EJ9's. All have had the smaller prop valve like the one that comes on the USA SI or the UK VTI with 4 wheel disk. These have the 242mm front disks. After the conversion is done brakes are bleed they work fine but there is alot of pedal travel before the come on. First time thought it was just air. Rebleed them over and over. Still the problem. Changed the prop valve to one of these and problem was gone. Pedal feel is just right. Moves a little and you have brakes.

Ok, so I thought I had this figured out lol! But from referring back to this thread I decided to re-read, all confirmed what I thought until the last page Accessory Zone :p

So I have an EJ8 with rear drums, looks like I will be needing a different prop valve, for whatever reason? Master cylinder perhaps? Although I'm sure it's the same Master Cylinder as on the UK EK4 Vti!

I might have a go at the conversion first with the oem prop valve and see what happens....then post up! Just incase I need it, where did you get the 40/40 prop valve from, Honda?


What confuses me most, is that my EJ8 has a 'HONDA OF AMERICA' vin tag..... so surely it will be the same as the US prop valves?! User Chet Baker has the exact same car as me (in the US) and has done the conversion with no trouble at all....
 

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blinx9900

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It seems to be hit or miss, some users seem to be OK with OEM prop/booster/mc etc while others need to upgrade them. Maybe they are not all the same, maybe Honda used a different supplier for some of the cars and even though the part looks the same maybe it is actually not the same, who knows :confused:
 


Joshm88

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It seems to be hit or miss, some users seem to be OK with OEM prop/booster/mc etc while others need to upgrade them. Maybe they are not all the same, maybe Honda used a different supplier for some of the cars and even though the part looks the same maybe it is actually not the same, who knows :confused:

Who knows?! lol. I'll post up what happens with mine once I get round to doing the conversion :)
 


Accessory Zone

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Now to confuse you even more. The 99-2000 EM1 in the uk has ABS so has a completley diff Prop valve to the one shown a few pages back. I'll post a pic of that one tomorrow.
 


Joshm88

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Now to confuse you even more. The 99-2000 EM1 in the uk has ABS so has a completley diff Prop valve to the one shown a few pages back. I'll post a pic of that one tomorrow.

lol....well at least we are getting somewhere! :nice: maybe one day we'll be able to finally figure this all out! Do you know whether both UK and US EJ8's all had ABS?! I know mine does.
 


alan168

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been readin through this again
i done my 5 lug conversion with ek9 master servo and cylinder
brakes work but there is slight travel before the brakes come proper on
going to try changing prop valve and see if there is any difference as stated by acessory zone
ive got a uk ej9 , will update once ive swapped over
 


Stuarty

2000 CW B18c EK9-Rx
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On my old EJ9 civic it originally had 242mm front disc's and drums on the rear. To fit VTi brakes which are 262mm front disc's and 242mm rear disc's i changed the front hubs, front calipers, rear trailing arms, rear calipers, rear handbrake cables, rear brake flexi's and also a VTi master cylinder and servo. I didn't change the brake proportioning valve. Bled it up and the brakes worked fine. But when i checked the brakes on a roller brake tester the back brakes gave very little effort so i would advise to get the full benefit of the brakes you should definetly fit the brake valve.
 


hugomenezes

Civic EK4 B16A2
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Jun 22, 2009
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Hi
I have EK4 and my proportion valve is malfunctioning.
I try to find a new proportion valve on the internet but i cant find.
Where i can find a new one to buy?

Sry for my bad english

Best regards
 


blinx9900

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Hi
I have EK4 and my proportion valve is malfunctioning.
I try to find a new proportion valve on the internet but i cant find.
Where i can find a new one to buy?

Sry for my bad english

Best regards

Hi, it depends what country you are in, where are you located? Maybe some of our users can help you :nice:
 




alan168

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been readin through this again
i done my 5 lug conversion with ek9 master servo and cylinder
brakes work but there is slight travel before the brakes come proper on
going to try changing prop valve and see if there is any difference as stated by acessory zone
ive got a uk ej9 , will update once ive swapped over

got my pedal sorted
arm needed adjusting
dont need to change valve
 


kinggreek

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Oct 14, 2009
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hi there.

I currently have a prop valve from an ek9 which i am using to brakline tuck and remove the abs from my esi

I now have the prop valve but could someone please advise me on how to work out which brake lines connect up where!?

Many thanks

Phil
 


lovely09

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Aug 7, 2009
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Not sure if this is what you need but got this by searching.The most difficult part of installing a brake proportioning valve is making a new line or two to place the proportioning valve in the hydraulic system. This usually only requires cutting the rear line and making a couple of 45-degree flares on each end of the tubing to create a leak-proof seal. The best place to put the proportioning valve is adjacent to the master cylinder where it is easily accessible.
 



sie2050

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Oct 24, 2007
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hey guys i know im digging up a thread but
if your car came with 262 front brakes then your proportion valve will be the same as a vti/ek9
if you had 242 fronts then your valve may need to be changed hope that helps
if you have abs then doesnt matter ;)
-si-
 


Curtiz

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May 4, 2009
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Accessory Zone, can you get that picture back again please?

So basically, i had drums and now have dc2 brakes but still standard valve, would an ek4/ek9 valve do?

Thanks :)
 


Curtiz

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Also, i have no abs, so do i need a proportioning valve that had no abs also?
 


Lynch

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Mar 21, 2007
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wow, this has got very confusing.

Ok, as far as I am aware, if you have ABS, then you will need A NON ABS proportioning valve.

If you are swapping in rear disks on a car that has rear drums, you will need to get the correct proporioning valve.

For example.

I have a UK EJ8.

The MC size is 15/16 (yes this is the same size as all uk vti, EM1/EK4 and even 96-98spec JDM Integra and also JDM AND UK EG5/6)

The car came with 262 front disks and 242 rear drums.

I intend to swap in a 242 rear disk swap. (From an eg5)

HOWEVER!!!!!!!!!!!!!!!!!!!!!!!!!


I will still need to source a UK VTI (ek4/em1 or even an ek9 I belive) PROPORTIONING VALVE!


WHY????

Because ( I am told) the pressure sent to the drums is more than is required for the disk swap, and so, if I leave in place the standard EJ8 prop valve I will not have the correct distribustion of braking force to the rear of the car. It will be more than is required.

Now, as for SI/EX/CX whatever these cars are, may I please ask that we talk in model codes as It will simplify the reading for everyone, in europe and the US.
 

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