Brake Booster solution? - Pirate4x4.Com : 4x4 and Off-Road Forum

crashnburn · 10-22-2002, 01:27 PM

I recently bought a 72 fj40 and the brake booster went out promptly after I got it home.... so insted of buying the $350 rebuild kit, I found a 71 fj40 with one in it at local wreaking yard, for $125 with master cylinder. My questions is will the 71 work with my 72? What are my other options. Any help is greatly appreciated. Thanks

Crashnburn

Mr McGee · 10-22-2002, 01:30 PM

from what i know, it should work...both years have drums all the way around.

crashnburn · 10-22-2002, 01:56 PM

Thanks.... Is this a common problem for older yotas and would I have this problem with the one from the wreaking yard seeings how it's fromt he same vintage?? Or should I just sack up and rebuild the one I have? (Damn that's alotta cash!!)

Crashnburn

rick d · 10-22-2002, 02:12 PM

Booster Dewey does those LC years for $125, and zinc plating is just a bit more.

sorry, no good contact info, in Oregon or Washington State.

Junkyard · 10-22-2002, 02:16 PM

The one from the wrecking yard should be the exact same as the one that you're replacing, but it might also have the same problem as your current one. The only way to really know will be to bolt it up & test it out. $125 seems kind of high to me.

You should be able to use other types of master cylinders and/or boosters in your year cruiser. For example, I've got a booster/master in mine from an '83 1-ton Toyota pickup and it bolted right up with no problems. I only paid $25 for both the booster & master cyl.

Do a search - lots of discussion threads about boosters/masters.

crashnburn · 10-22-2002, 02:55 PM

Is there anything to be aware of when swaping in another model's booster as far as throw or PSI in sucking power?? Or is it a plug and play part? I'm sure I could find something else that I could "rig - up" but I don't want it looking like chit!

I realy appreaciate all the help guys!!

Jason

LCOwner · 10-22-2002, 08:38 PM

When I did my dick break conversion I used a master cylinder out of a mini truck. It bolted right up to my 71 booster and has never given me a a single problem. I consider this to be a better option because mini-truck parts are much more available than LC in the parts stores.

texican · 10-22-2002, 08:51 PM

[QUOTE]Originally posted by LCOwner
[B]When I did my dick break conversion

AAAAAAAAAARRRRRRRRRRRRGGGGGGGGGHHHHHHHHHH!!!!!!!!! !

Don't want one of these!!!!!!
Butch

crashnburn · 10-22-2002, 09:42 PM

If you used the mini truck master cylinder, did you use the brake booster out of the MT?

Crash

Mr McGee · 10-23-2002, 06:13 AM

Quote:

Originally posted by LCOwner
When I did my dick break conversion

owwwwweeeeee!!! lol im at school and even my teacher is laughing!!!1

Cruzilla · 10-23-2002, 08:25 AM

I used a booster and master out of a 97 Tacoma, and it works great! I had one out of a 88 mini truck and it did not work anywhere near as well( same master in bolth cases) so get a matched set!

-Scott

Cruiser Ken · 10-25-2002, 07:26 AM

Quote:

Originally posted by Cruzilla
I used a booster and master out of a 97 Tacoma, and it works great! I had one out of a 88 mini truck and it did not work anywhere near as well( same master in bolth cases) so get a matched set!

-Scott

I thought you were using an FJ80 master cylinder? Do you have a proportioning valve?

Macgyver · 10-25-2002, 07:35 AM

Quote:

Originally posted by crashnburn
If you used the mini truck master cylinder, did you use the brake booster out of the MT?

Crash

Crash, did you do a search as recommended above? your questions will be answered with a little research as they have all been asked before. check out the link at the top "before asking any tech questions"

Cruzilla · 10-25-2002, 07:45 AM

The MC from a Taco and a FJ80 are the same thing(as far as I can tell) 1" bore, aluminum housing, single resivour. and yes I run a prop valve, and have a 2# residual valve for the rear on the way!

-Scott

Zipp · 10-25-2002, 02:39 PM

I had a single reservoir, no booster setup in my 1970 (mfg date: 11/69). I installed a booster and master out of an '85 toy minitruck 1ton (15/16" bore) when I went with discs in front. All I can say is: Damn! I can stop now!!! Why am I posting here? Oh yeah- I got the booster/master for $20 and a couple axle shafts- traded with Seabass44 for it.

Moral of the story: cheap stuff can get you where you need to be. Cheap doesn't always mean crappy and unsafe... (Just most of the time.

)

10-22-2002, 01:27 PM	#1 (permalink)
crashnburn Registered User Join Date: Oct 2002 Member # 14417 Location: Kennewick WA Posts: 10	Brake Booster solution? I recently bought a 72 fj40 and the brake booster went out promptly after I got it home.... so insted of buying the $350 rebuild kit, I found a 71 fj40 with one in it at local wreaking yard, for $125 with master cylinder. My questions is will the 71 work with my 72? What are my other options. Any help is greatly appreciated. Thanks Crashnburn

10-22-2002, 01:30 PM	#2 (permalink)
Mr McGee Registered User Join Date: Jan 2002 Member # 9216 Location: Kimberly, Wisconsin Posts: 1,830	from what i know, it should work...both years have drums all the way around. __________________ Nick Hietpas...1985-2003 Rest In Peace

10-22-2002, 02:16 PM	#5 (permalink)
Junkyard Registered User Join Date: Mar 2000 Member # 522 Location: Lincoln, CA. Posts: 470	test it out The one from the wrecking yard should be the exact same as the one that you're replacing, but it might also have the same problem as your current one. The only way to really know will be to bolt it up & test it out. $125 seems kind of high to me. You should be able to use other types of master cylinders and/or boosters in your year cruiser. For example, I've got a booster/master in mine from an '83 1-ton Toyota pickup and it bolted right up with no problems. I only paid $25 for both the booster & master cyl. Do a search - lots of discussion threads about boosters/masters. __________________ - Dave You haven't lived a full life until you've delivered a baby in your bathroom at midnight...

10-22-2002, 08:38 PM	#7 (permalink)
LCOwner 181 Join Date: Feb 2000 Member # 181 Location: 100 miles from Ershim Lake Posts: 1,738	When I did my dick break conversion I used a master cylinder out of a mini truck. It bolted right up to my 71 booster and has never given me a a single problem. I consider this to be a better option because mini-truck parts are much more available than LC in the parts stores. __________________ Team Member: G-Man Racing #213

10-22-2002, 08:51 PM	#8 (permalink)
texican Registered User Join Date: Jun 2002 Member # 12349 Location: Bonham Texas Posts: 6,609	[QUOTE]Originally posted by LCOwner [B]When I did my dick break conversion AAAAAAAAAARRRRRRRRRRRRGGGGGGGGGHHHHHHHHHH!!!!!!!!! ! Don't want one of these!!!!!! Butch __________________ Conflict is inevitable..... Combat is optional.... Tires are like boobs, they always look big until you have played with them for a while, then you just want a bigger set. [URL=http://www.lslc.org/]Lone Star Land Cruisers[/URL] [URL=http://www.khyi.com/]Support Texas Music[/URL]

10-22-2002, 01:56 PM	#3 (permalink)
crashnburn Registered User Join Date: Oct 2002 Member # 14417 Location: Kennewick WA Posts: 10	Thanks.... Is this a common problem for older yotas and would I have this problem with the one from the wreaking yard seeings how it's fromt he same vintage?? Or should I just sack up and rebuild the one I have? (Damn that's alotta cash!!) Crashnburn

10-22-2002, 02:12 PM	#4 (permalink)
rick d Registered User Join Date: Sep 2000 Member # 1849 Location: old pueblo Posts: 493	Booster Dewey does those LC years for $125, and zinc plating is just a bit more. sorry, no good contact info, in Oregon or Washington State.

10-22-2002, 02:55 PM	#6 (permalink)
crashnburn Registered User Join Date: Oct 2002 Member # 14417 Location: Kennewick WA Posts: 10	Is there anything to be aware of when swaping in another model's booster as far as throw or PSI in sucking power?? Or is it a plug and play part? I'm sure I could find something else that I could "rig - up" but I don't want it looking like chit! I realy appreaciate all the help guys!! Jason

10-22-2002, 09:42 PM	#9 (permalink)
crashnburn Registered User Join Date: Oct 2002 Member # 14417 Location: Kennewick WA Posts: 10	If you used the mini truck master cylinder, did you use the brake booster out of the MT? Crash

10-23-2002, 08:25 AM	#11 (permalink)
Cruzilla Registered User Join Date: Feb 2002 Member # 9851 Location: Idaho Posts: 755	I used a booster and master out of a 97 Tacoma, and it works great! I had one out of a 88 mini truck and it did not work anywhere near as well( same master in bolth cases) so get a matched set! -Scott __________________ "CRUZILA" 75 FJ40.....with some stuff done to it.

10-25-2002, 07:45 AM	#14 (permalink)
Cruzilla Registered User Join Date: Feb 2002 Member # 9851 Location: Idaho Posts: 755	The MC from a Taco and a FJ80 are the same thing(as far as I can tell) 1" bore, aluminum housing, single resivour. and yes I run a prop valve, and have a 2# residual valve for the rear on the way! -Scott __________________ "CRUZILA" 75 FJ40.....with some stuff done to it.

10-25-2002, 02:39 PM	#15 (permalink)
Zipp Registered User Join Date: Oct 2001 Member # 7631 Location: Davis, CA Posts: 402	I had a single reservoir, no booster setup in my 1970 (mfg date: 11/69). I installed a booster and master out of an '85 toy minitruck 1ton (15/16" bore) when I went with discs in front. All I can say is: Damn! I can stop now!!! Why am I posting here? Oh yeah- I got the booster/master for $20 and a couple axle shafts- traded with Seabass44 for it. Moral of the story: cheap stuff can get you where you need to be. Cheap doesn't always mean crappy and unsafe... (Just most of the time. ) __________________ Brandon Zipp - 1970 FJ-55 - 350 - sm420 - SOA - 37" MTR's - PS(fj60) - Discs - And other stuff in the works...

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