Hilux failed cert on front brakes.

[hiluxsurfer]

Failed cert today on my front brakes fading out on the second run.

It's a 1984 LN60 Surf with a 1uz in it.

The front brakes have been fully rebuilt with new pistons and seals, new front rotors (solid) and pads.

How do I go about getting vented front rotors on her without breaking the bank?

Any help hugely appreciated.

Cheers
Dan

[sig]

best way to pass is put a vh40 or 44 extra booster on the front circuit only.very common thing to do to get toyotas to pass cert

[wopass]

LN130? vented rotors and callipers will give you much better front brakes also

[Crash bandicoot]

yep, change out the master cylinder for that of a LN130, as it will flow more fluid in less pedal movement. also consider upgrading the calipers to that from a later model hilux too as above.

[mudlva]

don't know if they fit but landcruisers are vented disks

[Petemcc]

You want to use ln106 vented rotors (same as cruiser) but you will need to get the ln106 callipers or 130 surf callipers to fit the thicker vented rotors. Make sure the whole system has fresh fluid. A lot of brake fade is from old fluid.

Cheers Pete

[jonossiksilvia]

ive just been through all this. rebuilt everything and spent ages on vacuum bleeding. i was surprised at how long it took to get all the air out - 3l of fuild latter

[Sadam_Husain]

the difference those vh44 boosters make to your front brakes is staggering, if you go down that road and shove one in you'll never apply any pressure to the brake pedal again to stop the thing

[T-Boon]

I`ve got 2 full IFS hub setups if that helps ?

[hiluxsurfer]

You want to use ln106 vented rotors (same as cruiser) but you will need to get the ln106 callipers or 130 surf callipers to fit the thicker vented rotors. Make sure the whole system has fresh fluid. A lot of brake fade is from old fluid.

Cheers Pete

I take it that these shall bolt straight on as they are already solid front the ln106?

Cheers
Dan

[Petemcc]

Yip. Might need to modify the stone guard as callipers are a bit bigger and you also may need to give the calliper some grinder loving depending on the calliper you choose and your wheel offset.

My mate just put IFS surf S13 (4 big pots) callipers and LN106 vented rotors on his LN65 (? 87ish) hilux and it all bolted on but he had to trim stone guard and trim a couple of mm off the calliper so his wheels didn't rub.

The IFS rotors won't bolt on as they mount to the hub differently.

It appears to me that all the 130surf and ln106 callipers will bolt on if you use the ln106 rotors. Though you will need the pads that go with the calliper.

I can't guarantee it though as I haven't tried them all. Anyone got any other info that goes against this?

Cheers,
Pete

[SupraLux]

Pete has it right, mostly. The IFS vented rotors will fit if you engineer them into place with an adapter - but its a bad way to do it, since the calipers run off the outside edge of the rotor meaning you don't get full and proper pad contact with the disc.

Get some LN106 vented rotors (get em brand new - cheap as), and some LN106 calipers or IFS (130-series surf) calipers and they will just bolt straight on with a little 'massaging' of the backing plate to make room.

If you don't have aftermarket white-spokes with the max offset then you might also need to trim the innermost 'fin' off the caliper, as it will rub on the inside of the wheel... I found they fitted fine with the ROH rims I had.

Fully bleed the whole system with new fluid as well.

I've had 36" Simexes under a MU (heavier than a Hilux) running Hilux axles built this way pass the braking test easily.

If you still want more - then replace the booster as well.

Steve

[bob_or_jim]

Im not sure replacing all those parts will fix your issue, if your setup has been rebuilt like you say then factory brakes should have no worries on a Hilux. Ide be trying the old school way of brake bleeding (2 people 1 on the calliper and 1 on the pedal). Have you got you booster hooked up and no leaks? Also there should be a check valve (1 way valve) between the booster and the intake manifold. This keeps vac in the system while your right foot is planted on the gas. The fact that you have new rotors and pads may be an issue. Did you run them in before using them hard? I have seen some pads come with instructions saying no hard stops before there are 500kms on them (if you can help it).

Hope it’s a simple fix mate, feels good to get that cert plate on there.

Cheers

[suzolla]

In Dans question he says brakes were fading on second run, which suggests they were okay on first run, ie cold, so would appear they are fading due to heat which will be improved by using vented rotors, also type of pads can make quite a difference.
Cheers
Tim

[wopass]

vented rotors (brand new about $50 each from memory)and LN130 surf callipers (about the same ex trade me?) makes a big difference to sustained braking as tim said, not as much heat build up. its been done a thousand times before and its all just bolt on shit so easy as.

[hiluxsurfer]

vented rotors (brand new about $50 each from memory)and LN130 surf callipers (about the same ex trade me?) makes a big difference to sustained braking as tim said, not as much heat build up. its been done a thousand times before and its all just bolt on shit so easy as.

Exactly what I thought, can't dissipate the heat with solid rotors, and yes I will be splashing out for a decent set of pads too.

[bob_or_jim]

Agreed, very easy to do. But were only talking about 2 stops (guessing from 100kph?). If standard brakes in any car cant do that there is something not working as designed. Did the truck have braking issues before you modded it?

I know that when I did my lexus swap the Vac created didnt seem the same as what the alt from the diesel could make. I ended up using a V6 surf one which was a little larger.

Anyway I dont want to start a forum fight its just that Ide hate to see you swap everything over and still have the problem.

[wopass]

Agreed, very easy to do. But were only talking about 2 stops (guessing from 100kph?). If standard brakes in any car cant do that there is something not working as designed. Did the truck have braking issues before you modded it?

I know that when I did my lexus swap the Vac created didnt seem the same as what the alt from the diesel could make. I ended up using a V6 surf one which was a little larger.

Anyway I dont want to start a forum fight its just that Ide hate to see you swap everything over and still have the problem.

cert requires 3 stops from 80? to a certian distance and all within a set time frame. increased booster works to make the brake performance better yes, and i aggree you get primo brakes from it, but wont help much when the fluids boiling from excess heat build up from having solid rotors that cook after the first stop

edit to add= Hell, do the later model surf booster at the same time! and get the most out of it

[hiluxsurfer]

The brakes were mint before the conversion, always pulled up with ease, got my new rotors, pads and dot5 fluid yesterday, time to hunt down some calipers and another booster, like you say might as well do it once and be over with it. Cheers Dan

[wopass]

The brakes were mint before the conversion, always pulled up with ease

probably could only do 75clicks flat out with a tail wind tho.

[bob_or_jim]

How did ya go in the end mate? Did you get it fixed?

[hiluxsurfer]

How did ya go in the end mate? Did you get it fixed?

Rotors and calipers bolted up sweet as, had to trim the stone guard a little, bled the system with new fluid, just gotta bed the pads in first before the cert man does his re-check.