Author Topic: Brake master cylinder from marlin crawler (Read 5016 times)

madmanweaver444 · « **on:** Apr 02, 2008, 03:05:27 PM »

will this work on my truck with no modification
such as just disconnect the old one and put this one on
anyone donw it before

thanks

jimbo74 · « **Reply #1 on:** Apr 02, 2008, 03:05:49 PM »

madmanweaver444 · « **Reply #2 on:** Apr 02, 2008, 03:08:20 PM »

alright cool cuase mines starting to leak
and im hard on my brakes

solar86yota · « **Reply #3 on:** Apr 02, 2008, 03:08:36 PM »

Yeah my master cyls going too!!!! I want to put this on but what are the advantages over a stock aisin!!!

jimbo74 · « **Reply #4 on:** Apr 02, 2008, 03:15:25 PM »

the mc is a stock aisin, its larger than stock on the trucks

Replacement master cylinder for older Pickup's and 4Runners with smaller bore (bore size is cast into right side of housing). Fits 1979-1995 Pickup/4Runner. Features 1" piston and residual valves for both front and rear. Works with both drum and disc brakes. Bolt on installation. Includes reservoir. On 1979-1985 Trucks and 4Runners the smaller factory bore works fine with stock, solid front rotors and 8" rear drums. If you upgrade the rear to larger 1986 and up, 10" drums and/or upgrade the front to a vented style caliper you will want to install a 1" bore master cylinder like this one for additional volume.

Upgrading your brakes without changing the master cylinder results in excess brake pedal travel. If you have upgraded your brakes on a 1979 to 1985 truck and now you have to push the peddle nearly to the floor, this master cylinder will make the peddle feel like it should.

RN37DD · « **Reply #5 on:** Apr 03, 2008, 09:36:08 AM »

if you have a 86 or newer truck i think you'll be happy from day one. i put one on a 79 and you really had to stand on it to make those little stock brakes work. i then installed some fj60/40 rotors and ifs calipers on the front and it works good. i think it's going to be perfect once i install my 90's rear axle with the bigger drums.

solar86yota · « **Reply #6 on:** Apr 03, 2008, 11:32:26 AM »

Sweeet!! Thanks Jimbo for the info, mines an 86 so it should be better! Sometimes I loose all my pedal pessure and have to pump the brakes really fast to get them going! There isn't any fluid leaking that I can tell though. Also, thanks rn37dd for the pics!!!

79coyotefrg · « **Reply #7 on:** Apr 04, 2008, 10:47:01 AM »

the ONLY mod is the front brakeline needs to be bent but they bend by hand easily, no worries

madmanweaver444 · « **Reply #8 on:** Apr 04, 2008, 04:47:41 PM »

so if i use this cylinder i will have to hit the brakes really hard to get them to work i would think that this would give me more stopping power

79coyotefrg · « **Reply #9 on:** Apr 04, 2008, 05:54:54 PM »

Quote from: madmanweaver444 on Apr 04, 2008, 04:47:41 PM

so if i use this cylinder i will have to hit the brakes really hard to get them to work i would think that this would give me more stopping power

it will, not sure what his setup was but its quite possible he had a bad caliper

madmanweaver444 · « **Reply #10 on:** Apr 04, 2008, 07:10:49 PM »

so it will give me more stopping power is what you are saying
thanks
cuase i was thinking about upgrading my brakes in the future

79coyotefrg · « **Reply #11 on:** Apr 04, 2008, 07:27:17 PM »

i have one

solar86yota · « **Reply #12 on:** Apr 05, 2008, 07:43:02 PM »

Why on Marlin's page does it say it's an fj80 master cylinder!!?!?!?

KDXSR5 · « **Reply #13 on:** Apr 05, 2008, 07:53:57 PM »

Quote from: solar86yota on Apr 05, 2008, 07:43:02 PM

Why on Marlin's page does it say it's an fj80 master cylinder!!?!?!?

Becuase thats what it is. The 1" master cylinder is off of an fj80, and it bolts right up to your booster.

solar86yota · « **Reply #14 on:** Apr 05, 2008, 07:56:46 PM »

Are the 86 and up pickups a 1" bore also??? It says it is stamped on the right side but all mine saysis aisin and front and rear.

KDXSR5 · « **Reply #15 on:** Apr 05, 2008, 07:59:30 PM »

as far as I know, the only toy thing with a 1" master is a fj80. It should be stamped somewhere, not always on the side. Last fj80 master i saw was stamped with a 1 below the reservoir.

79coyotefrg · « **Reply #16 on:** Apr 05, 2008, 08:28:40 PM »

Quote from: solar86yota on Apr 05, 2008, 07:56:46 PM

Are the 86 and up pickups a 1" bore also??? It says it is stamped on the right side but all mine saysis aisin and front and rear.

look on the engine side of the master cylinder, its cast into the side, 86 pickup should be 13/16 or 7/8

solar86yota · « **Reply #17 on:** Apr 05, 2008, 08:33:31 PM »

Thanks, coyotefrg!!!!!!!!

THK Matt · « **Reply #18 on:** Apr 06, 2008, 06:57:51 AM »

FJ80, V6 and T100s have the 1" MC

I went to napa paid $86 for a Brand New FJ80 MC and then got a FJ80 Resivior at the Pick & Pull for 15 bucks.
So i was set.. and its a BIG difference on my sister's 87

KDXSR5 · « **Reply #19 on:** Apr 06, 2008, 10:59:42 AM »

Quote from: ImTheHoToy87 on Apr 06, 2008, 06:57:51 AM

FJ80, V6 and T100s have the 1" MC

I guess you learn something new every day. Thanks for the info man!

THK Matt · « **Reply #20 on:** Apr 06, 2008, 09:28:23 PM »

Quote from: KDXSR5 on Apr 06, 2008, 10:59:42 AM

I guess you learn something new every day. Thanks for the info man!

i checked at napa.. .and they all the same part number

LOckEdSolidTOy · « **Reply #21 on:** May 12, 2008, 07:24:16 PM »

i did it on my 85 last year when my Master cylinder went out. The brake petal is a little firm but not too much, its still great for driving (Not too firm where it becomes uncomfortable), and it will easily lock up my 33's. i would try and find the Fj80 master cylinder else where its probably cheaper, i think i got mine for $70 through my girlfriends shop. it bolts right up just make sure you bench blead it.

THK Matt · « **Reply #22 on:** May 14, 2008, 08:05:25 PM »

Bench Bleeding it is very IMPORTANT

jimbo74 · « **Reply #23 on:** May 14, 2008, 08:07:35 PM »

dont some of the otehr toyotas also have a 3" i swear i have seen 1" or bigger on some toyotas.... supras or something.....

KDXSR5 · « **Reply #24 on:** May 14, 2008, 08:09:03 PM »

A 3" MC? Noooooo.... not gonna happen, haha

THK Matt · « **Reply #25 on:** May 14, 2008, 08:09:56 PM »

Quote from: jimbo74 on May 14, 2008, 08:07:35 PM

dont some of the otehr toyotas also have a 3" i swear i have seen 1" or bigger on some toyotas.... supras or something.....

WHAT FLOPP ARE YOU SMOKING!

jimbo74 · « **Reply #26 on:** May 14, 2008, 08:12:59 PM »

oops.... must have fat finger syndrome.... i meant to type dont some have bigger than 1" ..... and htat i swore i have seen some bigger than 1" but couldn't remember on what....

KDXSR5 · « **Reply #27 on:** May 14, 2008, 08:13:33 PM »

crawlerdan · « **Reply #28 on:** May 14, 2008, 08:19:19 PM »

twin turbo supras have 1 1/8 MCs good luck trying to find one though

i had one on my 85 with 4 wheel GM discs and it stopped well

THK Matt · « **Reply #29 on:** May 15, 2008, 01:16:03 AM »

Quote from: crawlerdan on May 14, 2008, 08:19:19 PM

twin turbo supras have 1 1/8 MCs good luck trying to find one though

i had one on my 85 with 4 wheel GM discs and it stopped well

is it that much more difference then a 1'' bore? like feel wise?

madmanweaver444 [OP]

madmanweaver444 [OP]

madmanweaver444 [OP]

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