The Rebuild Begins

[MK1_Oz]

i think i just need to find the time and money to thrash it around Mallala to see what breaks. I cannot afford to do any other tarmac rally events :(

I have a Kaaz LSD in a Hilux diff and it bangs and carries on terribly. Even on small radius corners at low speed it bangs like somebody has hit the back end of the car with a sledge hammer. Is that normal? To me it seems to have got alot worse than it used to be. I still have great traction but it is such a pig at crawling speed to the point that it forces the car to stall. Any ideas? The backlash on the tailshaft seems a little more excessive than it should be although I have not measured it yet.

[joe84]

Good effort

[MK1_Oz]

Its only the second time the car has been used. I am not surprised it failed. Will make more of an effort to run it during this year....

[PaulMK1]

I have the same Kaaz centre as you and mines super quiet after two seasons of thrashing - I've ordered another for the new car

P

[MK1_Oz]

[Danny M]

Glenn what oil are you using?

[MK1_Oz]

some kaaz oil that came with it. 80w/90 from memory

Just received some infor from Kaaz USA;

Under competition use, the diff oil temperature can go as high as 400F degrees.
Most racing gear oil will break down at this temperature. If you haven't changed the
oil since the first event, please change the oil and check the noise level and
the function of the lsd. Once the oil reaches this kind of temperature, the viscosity
level goes down quite a lot and the oil will not cushion the parts properly causing
premature wear in some cases.
Also the use of synthetic type oil will normally double the chatter noise level.
Mineral based oil will provide more smooth movement during lock and unlock
process and produce less noise. Normally more rubber (wider tire) = less chatter.


I have been using the same oil for 2 events.

[PaulMK1]

The oil Kaaz supplier with the centre was nowhere near enough for the Hilux housing. When I spoke with supplier about extra oil they also stressed not to go synthetic, which was going to be my preference. I can't remember what brand I ended up with but it has been changed at the start of each season.

My Escort has now done a grand total of 786Km in the past 3 years

[MK1_Oz]

I did a little bit of research into Hilux oil quantities and I thought it was no more than 2 litres. Will have to look into that again.

[PaulMK1]

I was told 2.8ltrs but that was still way below the inspection/filler hole, so I was generous

[MK1_Oz]

Struggling to find a service manual but the Caltex website says 1.8L

TOYOTA
Hilux RN30, RN40, 12R Eng. (1979-1983)

Crankcase
HAVOLINE PREMIUM
Service Refill Capacity: 3.5 Litres
See note 399 below.
Manual Transmission
THUBAN GL5 EP 80W-90
Service Refill Capacity: 1.9 Litres
See note 400 below.
Differential
THUBAN GL5 EP 80W-90
Service Refill Capacity: 1.8 Litres
NOTES
399
May also use HAVOLINE MULTIGRADE.
400
May also use EASYSHIFT SAE 75W-90.

[PaulMK1]

My diff is still super quiet and grippy....

[MK1_Oz]

you have a Super Q do you not? They are supposed to be quieter somehow. Guess you're just the lucky one :(

[wayovermyhead]

Sorry to hear it didn't work out as we would all hope mate. Still, at least you got a good drive out of it and it didn't all die in the arse on day one. You'll find the cash for another next year or beyond, just don't leave the prep to the last minute.

The footage looked good too, well done on the effort.

Llew

[Danny M]

Glenn, Paul's might be quiet because he hasn't got any grunt! LOL
I've got one organised for the yellow car for Mt Cotton so we'll see if it makes any noise, I probably wouldn't hear it if it did anyway

[MK1_Oz]

I have ordered a new Holley fuel regulator as my previous one couldnt regulate down low enough. The new one is designed for 1-4psi so is ideal. I also am looking for a new fuel pressure gauge to sit with the regulator. Does anybody know if you can get a gauge that reads only in the Weber sort of pressure range? Most seem to be 0-15psi and I doubt if the readings as low as 2-3psi would be accurate. What do you use?

[ozstang65]

I've used a vacuum/pressure gauge I got from Bursons a while ago. Put it in a T-piece between the carb inlets. No need to leave it in permanently.

[Danny M]

Don't fit a gauge in permanently as the vibrations kill them and they're never that accurate.
Get a decent hand held gauge and just connect it up once in a while