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Mikey Alkufaishi
Newbie
SA
Soarer GT-TL

Posts: 4
Reg: 01-2010

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Friday, July 30, 2010 - 11:43 am, by:  Mikey Alkufaishi (Xpresion) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Guys I am experiencing brake shudders as I brake to a complete stop. after research it seems it's the accumulator but I cannot find where it is.

did the TT soarers come out without an accumulator system?

Where is the accumulator located on the 1jzgte soarers?

also I realised the shudders completely go away if I put the car in "track mode" via the diagnostic plug.

this has got me going nuts...


my other Question is: will an Aristo accumulator fit the soarer? I only ask as I have a Aristo half cut with low k's and I am wondering if I can use the accumulator of it.


Regards
Steve Latimer
TryHard
VIC
UZZ32

Posts: 389
Reg: 07-2005

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Saturday, July 31, 2010 - 06:14 am, by:  Steve Latimer (Latsus) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Mikey, check this thread
http://soarercentral.com/sc-forum/messages/83418/321269.html?1280482783#POST433662
Peter Angelopoulos
DieHard
VIC
1JZ GTTL TT

Posts: 502
Reg: 11-2008

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Saturday, July 31, 2010 - 08:35 pm, by:  Peter Angelopoulos (Tsoylani) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

hey steve did you get my pm mate? i emailed you regarding rebuilding my accumilator!
Steve Latimer
TryHard
VIC
UZZ32

Posts: 390
Reg: 07-2005

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Sunday, August 01, 2010 - 07:44 am, by:  Steve Latimer (Latsus) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Hey Peter

Sorry I have NOT received a PM from you. Please try again.
Mikey Alkufaishi
Newbie
SA
Soarer GT-TL

Posts: 5
Reg: 01-2010

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Monday, August 02, 2010 - 11:09 am, by:  Mikey Alkufaishi (Xpresion) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

thanks pete,

The pic on the link you provided is not like what i have :S i cannot find this cylinder.

so i am asking. do all soarers come with this? or possibly just the UZZ32 and the JZZ32?

Mine is a JZZ30 GTTL TT with TEMZ etc and i have looked but i cannot find anything that looks like that cylinder near the brake master cylinder...

can someone please confirm this with me? or at least take a photo of where this is on their JZZ30 soarer?

Please. because i have a brake master cylinder of an aristo here and it looks more like the one in the pic that is in the link you posted pete. so if its no use to me i will sell it and troubleshoot my issue some more.

p.s why on earth does the shudder stop when i use the "track mode" jumper mod?

ARISTO
http://i119.photobucket.com/albums/o148/sly180sx/pics%20of%20me/20100722_007.jpg

MY JZZ30
http://i119.photobucket.com/albums/o148/sly180sx/pics%20of%20me/20100722_006.jpg
Mikey Alkufaishi
Tinkerer
SA
Soarer GT-TL

Posts: 6
Reg: 01-2010

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Monday, August 02, 2010 - 12:54 pm, by:  Mikey Alkufaishi (Xpresion) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Update. after some extensive research i found that soarer TT or V8 with TRC (traction control) have accumulators.

My sorarer in the other hand does not have traction control as can bee seen from the pic.

so this means my brake system is different yes? and hense no accumulators? because from countless pictures of where the accumulator "should" be i cannot see it in my car. ...
Narvey Vilaythong
TryHard
SA
soarer tt and 3T-GTE corona liftback

Posts: 243
Reg: 09-2009

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Monday, August 02, 2010 - 01:26 pm, by:  Narvey Vilaythong (El_pablo) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Not really different, you just won’t have any big problems with the brake system I us people with the accumulator system when they age. From what I have researched, it’s pretty much the same except your brake system runs the normal vacuum system.

With your car not having traction control, means there shouldn’t be any buttons that say “TRC” anywhere in your car or will you have speed sensors on the inside hub of each wheel on your car.
Another hint would be that you have no second throttle on the throttle body.

Your car is also equipped with ABS, as you can see the system next to your heater tap.
Katsuji Ueda
Tinkerer
Osaka
JZZ30 2.5GT-TL

Posts: 46
Reg: 07-2010

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Thursday, December 30, 2010 - 05:52 am, by:  Katsuji Ueda (Senrioka8) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Hi Mikey, some info about hydraulic booster brake system which has accumulator.
First of all, Hydraulic booster brake system was equipped automatically if the car had ABS and TRC.
Since TRC was an option in 91'~93' for UZZ31 and JZZ30, not so many Soarers had the Hydraulic brake.
Only UZZ32s had that system in those years. From 94', for UZZ31 it was equipped as a standard equipment. But for JZZ30, TRC was still an option.
Since your JZZ30 does not have TRC, you can't use your ARISTO's hydraulic brake system.
Here is a movie of my 92' JZZ30 2.5GT-TL which has ABS and optional TRC. Accumulator has a leak of Nitrogen and pomp is working so often. Of course I repaired the full system.
http://www.youtube.com/watch?v=FMP9sEL6cx8
Peter Nitschke
Junk Filterer
South Australia
UZZ30 UZZ31

Posts: 11983
Reg: 11-2004

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Saturday, January 01, 2011 - 12:28 am, by:  Peter Nitschke (Pen) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)


Katsuji Ueda wrote on Thursday, December 30, 2010 - 05:52 am:

Of course I repaired the full system.


How did you go about it?
Katsuji Ueda
Tinkerer
Osaka
JZZ30 2.5GT-TL

Posts: 47
Reg: 07-2010

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Saturday, January 01, 2011 - 02:10 am, by:  Katsuji Ueda (Senrioka8) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Hi Peter,
I asked my friend about this constant pomp sounds he suggested the leak of the accumulator.
There were some threads on SC about leaked accumulator and how they solved the problem.

http://soarercentral.com/sc-forum/messages/9739/166885.html?1244031937
I asked with my favourite mechanic whether he can do it or not. But his answer was NO. He proposed two ways to repair. One is to repair booster pomp assy (it will cost about 200,000Yen=AUD$2,350)and the other is to repair hydro booster brake assy (it will cost 300,000Yen=$3,500AUD).

I went to Toyota dealer in my city to check the cost and also their opinion. their answer was to repair full brake system assy. I asked my friend again and he suggested it would be better to repair it at the dealer factory since it will need special tool to prevent air brake-in when changing the assy.

It took more than a week to get the genuine part and on Dec. 10th, my Soarer has got the brand-new hydro booster brake system like as a new car. The effect is SUPERB!! My friend said it will be more effective than changing to big callipers and rotors.

According to my friend's same troubles and also reading threads on SC, I think this is also one of Soarer's typical troubles. Be aware of this trouble who has UZZ32 or '94~ UZZ30 or 31.

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Katsuji Ueda
Tinkerer
Osaka
JZZ30 2.5GT-TL

Posts: 48
Reg: 07-2010

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Saturday, January 01, 2011 - 02:37 am, by:  Katsuji Ueda (Senrioka8) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Oh, very useful information for you.
The pomp motor will be on when the pressure in the accumulator goes lower than 150kg/c㎡ through ABS & TRC computers. And if the pressure goes less than 107kg/c㎡, BRAKE(ブレーキ) warning will be lit up with the beep sound. When the pressure in the accumulator goes higher than 185kg/c㎡, then pomp will stop.If the pressure sensor goes wrong, relief bulb will be opened at 250kg/c㎡ to stop unusual high pressure.
Aiden Cheese
DieHard
QLD
Soarer jzz30

Posts: 952
Reg: 09-2009

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Wednesday, January 05, 2011 - 11:05 am, by:  Aiden Cheese (Chillpen) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Thansk katsu-san (:-) see what i did there? It made me hungry..)

Unrelated but i'll be in osaka on Feb 8th till feb 14th and again to leave japan on the 27-28th.
Katsuji Ueda
Tinkerer
Osaka
JZZ30 2.5GT-TL

Posts: 49
Reg: 07-2010

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Friday, January 07, 2011 - 01:23 pm, by:  Katsuji Ueda (Senrioka8) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Hi Aiden,
I saw your profile and we are following almost the same issues and repairs who have those old 2.5 GT-TLs.
My next planning modification is piezo suspension, starter (a bit leak of oil) and alternator.
Damian Ware
Goo Roo
Victoria
UZZ32

Posts: 1954
Reg: 10-2005

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Friday, January 07, 2011 - 01:42 pm, by:  Damian Ware (Frozenpod) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)


Katsuji Ueda wrote on Saturday, January 01, 2011 - 02:10 am:

It took more than a week to get the genuine part and on Dec. 10th, my Soarer has got the brand-new hydro booster brake system like as a new car. The effect is SUPERB!! My friend said it will be more effective than changing to big callipers and rotors.




So to clarify you just replaced the entire brake unit with a new one.

You didn't actually rebuild aka repair the old brake unit?
Katsuji Ueda
Tinkerer
Osaka
JZZ30 2.5GT-TL

Posts: 50
Reg: 07-2010

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Friday, January 07, 2011 - 10:54 pm, by:  Katsuji Ueda (Senrioka8) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Hi Damian, Yes I have replaced the full hydraulic booster brake system. I asked the Toyota dealer's factory if they can replace the leaked accumulator only but they didn't have that option. So I have to replace the whole assy. Just for my interest, I brought back the removed Hydro booster brake system. It is very heavey..more than 15kgs I think. Some pics below.

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Peter Nitschke
Junk Filterer
South Australia
UZZ30 UZZ31

Posts: 11988
Reg: 11-2004

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Saturday, January 08, 2011 - 12:19 am, by:  Peter Nitschke (Pen) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I bet that was expensive?
Katsuji Ueda
Tinkerer
Osaka
JZZ30 2.5GT-TL

Posts: 51
Reg: 07-2010

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Saturday, January 08, 2011 - 02:47 am, by:  Katsuji Ueda (Senrioka8) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Hi Peter, yes it was very expensive!
Brake booster assy.....¥280,350 (AU$3,300)
Brake fluid......................¥1,806 (AU$21)
Technical Charge...........¥17,535 (AU$206)
-------------------------------------------------
Total.........................¥299,691 (AU$3,525)
5% discount with Toyota card, so I payed ¥284,620.
Is there anyone who needs this removed one in Australia?
Boris Siljanoski
Goo Roo
Western Australia
LS400 + Soarer.

Posts: 1305
Reg: 11-2007

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Saturday, January 08, 2011 - 11:07 pm, by:  Boris Siljanoski (Z2tt) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

What do you mean by "Technical Charge?"

Also I would have thought you could just buy the Accumulator by itself, looks not?
Ali Saeed
Goo Roo
WA
UZZ31

Posts: 3077
Reg: 09-2007

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Sunday, January 09, 2011 - 03:04 am, by:  Ali Saeed (Ali) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

nah you cant. Technical charge would be fitting?
Boris Siljanoski
Goo Roo
Western Australia
LS400 + Soarer.

Posts: 1306
Reg: 11-2007

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Sunday, January 09, 2011 - 04:21 am, by:  Boris Siljanoski (Z2tt) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Lucky there is people who can rebuild the accumulators, do the ABS/TRAC Units ever go bad, anybody had experience like that?
Katsuji Ueda
Tinkerer
Osaka
JZZ30 2.5GT-TL

Posts: 52
Reg: 07-2010

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Sunday, January 09, 2011 - 09:45 am, by:  Katsuji Ueda (Senrioka8) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

"Technical charge" means the service fee that mechanics worked for fixing the brake system. In case of Toyota, the fee will be counted by the time how long to fix it. In my case, it was fixed in about 4 hours.
I also thought to exchange the leaked accumulator only,but it belongs to the booster pomp assy. This booster pomp assy will cost about ¥200,000 including the technical fee. So I chose to repair full system and I'm satisfied with the result.
Gareth Richards
TryHard
Bristol UK
GTT-L twin turbo auto / Aristo Mk1 TT / Lexus GS300 SE Mk2

Posts: 306
Reg: 07-2005

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Wednesday, January 19, 2011 - 06:56 am, by:  Gareth Richards (Garethr) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)


Boris Siljanoski wrote on Saturday, January 08, 2011 - 11:07 pm:

Also I would have thought you could just buy the Accumulator by itself, looks not?


You can. I recently bought a new accumulator for my Aristo. Same part no. as the JZZ30 and UZZ31 Soarers.
Part no. 47950-24020 ACCUMULATOR ASSY, BRAKE BOOSTER

Unfortunately, there is now brake fluid dripping into the footwell. :-( Anyone ever replaced/overhauled the master cylinder part of the brake booster?



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