AE92 brake booster and master cylinder into AE86

[bel_air]

Hi everyone.
I am having problems with my brake master cylinder (it is leaking like crazy) and I wanted to change it but it seems that it would be quite expensive job. Today In my local Junkyard I found Corolla AE92. It is with 4AFE engine. My question is Can I take the brake booster and the master cylinder and install them on my AE86. It is a three bolt pattern, but I was more consern about the diameter of he brake cylinder piston and the booster, because I don't want to ruin the brake balance and feel of my car. I tried to find information about such a swap, but I could find anything. Thanks

[mech5107]

On the master cylinder, there should be a number indicating the piston size.
If it's the same, and booster is about the same in shape and volume, there should be a good fit, with no changes in balance and feel.

[bel_air]

Thanks. Tomorrow I'll go to the junkyard and I will try to find the diameter of the bore. I browsed some sites and what I found was that the AE86 is 13/16 and the AE92 is 7/8. Could it be a problem to use 7/8 on stok brake system. I guess there won't be a problem for the bolt pattern for the brake servo to the car body... Anyway if there are people that have made that mod.. I would be glad to hear them. Thanks

[bel_air]

Also it would be great if someone could provide me with information about rebuild kits or what make models and years brake master cylinders fit. Because I am a bit lost browsing on ebay for rebuild kits on decent price.

[Bean]

first of all 7/8 is no issue at all - I got a 7/8 on my car originally (4bolt pattern).

I don't know how much the rebuild kit costs around your place - when mine finally let go I simply took it apart and my friend at the garage sourced the kit for ~10$. I think some Hilux/4runner use the same design. As far as I know most of the rebuild kits are the same as long as they match the diameter (13/16) and are from a similar age Toyota.

[bel_air]

http://www.ebay.co.uk/itm/Toyota-HiLux-4...6rk%3D1%26

It seems that this would work for me, but for that price I would get the AE92 master cylinder with the brake booster... I would try to sort out a cheaper rebuild kit, but I would most likely go with the AE92 brake mooster and cylinder.

[Bean]

Just take into consideration that the one from the scrappy could potentially fail on you shortly too.

[bel_air]

Well I tried to install The E90 brake booster but it has a different bolt patern so it didn't fit the AE86.. bad luck