Thread: Ex army Mack 6x6 trucks.

Originally Posted by Blknight.aus

it varies from type to type and load conditions.

work on 7.2T

As I suspected. Over on the steer as built. How does someone register one without cheating? Permits used to be available in Qld. but you needed a very good and believable reason.

In the 1960's Leyland sold a heavy prime mover, the Buffalo, always known internally as the Albion Buffalo. Virtually a Super Hippo with the export cab, monster hub reduction diffs and the Albion 903 16 litre engine designed originally for shunting locomotives. These were over on the steer as built. No problem in those more cavalier days. Just get a certificate from a co-operative weighbridge, usually cost a carton, showing a ton less on the steer and away it went freshly registered. Then someone tendered one to the Main Roads Dept for a low loader prime mover and won the tender. Main Roads did their own weighing and the poo got right in the fan. MRD then checked all those on register and had no option, faced with a group of very angry owners, but to issue over-weight permits.

What I don't understand is if they're over in Vic, how do they get a Brown slip from AFM in NSW?

http://www.aulro.com/afvb/attachment...own-slip-1.pdf

Originally Posted by Brian Hjelm

As I suspected. Over on the steer as built. How does someone register one without cheating? Permits used to be available in Qld. but you needed a very good and believable reason.

In the 1960's Leyland sold a heavy prime mover, the Buffalo, always known internally as the Albion Buffalo. Virtually a Super Hippo with the export cab, monster hub reduction diffs and the Albion 903 16 litre engine designed originally for shunting locomotives. These were over on the steer as built. No problem in those more cavalier days. Just get a certificate from a co-operative weighbridge, usually cost a carton, showing a ton less on the steer and away it went freshly registered. Then someone tendered one to the Main Roads Dept for a low loader prime mover and won the tender. Main Roads did their own weighing and the poo got right in the fan. MRD then checked all those on register and had no option, faced with a group of very angry owners, but to issue over-weight permits.

The regulations when the R series came into service were looser, the ADF has been operating under exemption for a long time now. You can get an exemption but you would need a reason to, a logging company or farm owner might get away with it claiming the requirement for 6wd and the brute strength of the vehicle. Some museums should also be able to get it for historic purposes.

Originally Posted by Lotz-A-Landies

What I don't understand is if they're over in Vic, how do they get a Brown slip from AFM in NSW?

http://www.aulro.com/afvb/attachment...own-slip-1.pdf

Thats not a rego, thats just a statement of conformance to a standard, being overweight on an axle is something that can be wivered around so for all intents and purposes what that certificate gives you is 3 things

1. the vehicle is safe to operate (it brakes has all the correct lighting and isnt leaking)
2. It matches its compliance plates (your not trying to get a dumper body registered on a rebirthed GS set of plates and is on spec for the weight plates (if fitted))
3. That it meets the linear dimensional requirements.

Also that lot of paperwork aint worth squiddly because

a, its not fitted with a cummins its fitted with a MACK engine
b, its not 6590 of displacement its ~11000 (assuming they're working in CC because its sure as hell not cubic inches)
c, its not design complaint with vsi 5 and needs to have an RMS permit for 3t over on the steer (which give or take, is what the GS varient was when it had the M113A1 loaded on correctly) or at least 2t.

If you were to rego that vehicle with those papers and got caught you would go for.
1. undocumented engine change
2. engine over stated capacity and not engineered
3. over mass on the steer.

Originally Posted by Blknight.aus

If you were to rego that vehicle with those papers and got caught you would go for.
1. undocumented engine change
2. engine over stated capacity and not engineered
3. over mass on the steer.

Well actually given that the Cummins is smaller than the Mack donk, it doesn't need engineering and the engine number is the Mack one. Even an increase in engine capacity can in many cases be signed off by a blue/brown slip inspector without an engineers certification.

More than that it would be the person who issued the brown slip that would cop the fine for the paperwork.

As the owner/driver you could apeal any fine for overmass because that is how you purchased the truck and believed the paperwork. You couldn't do that twice though.

Originally Posted by Lotz-A-Landies

Well actually given that the Cummins is smaller than the Mack donk, it doesn't need engineering and the engine number is the Mack one. Even an increase in engine capacity can in many cases be signed off by a blue/brown slip inspector without an engineers certification.

More than that it would be the person who issued the brown slip that would cop the fine for the paperwork.

As the owner/driver you could apeal any fine for overmass because that is how you purchased the truck and believed the paperwork. You couldn't do that twice though.

go on, bet me....

sure you'd win at the end of the day but they would hold you for knowingly submitting incorrectly completed paperwork if you were lucky and submitting willfully falsified documentation if you werent.

if they took the line that the cummins engine was correct at the time of issuing (we'll just pretend they will say that the OEM engine was removed and then blue plated with the replacement cummins to get the front end wieght down and make it vsi-5 compliant because thats what the paperwork shows) and then they found you with an 11 liter donk in there then your over the 25% (might be different now) increase in capacity that you're permitted to have without re-engineering.

Dont you love bureaucracy ? and yes, they will try that on. There's a pootrol on base that has a blue plate on it to go from the ls1 and auto it had grafted into it back to the original 4.2 and manual. Even the engineer that had to make out the plate commented on it as bureaucracy gone mad. Of course the logic is that anything that got modded that needed engineering to make sure it was sound was undone in the same manner and that the vehicle is still sound. It just seems stupid.

No blue plates outside Qld

Originally Posted by Lotz-A-Landies

Well actually given that the Cummins is smaller than the Mack donk, it doesn't need engineering and the engine number is the Mack one. Even an increase in engine capacity can in many cases be signed off by a blue/brown slip inspector without an engineers certification.

More than that it would be the person who issued the brown slip that would cop the fine for the paperwork.

As the owner/driver you could apeal any fine for overmass because that is how you purchased the truck and believed the paperwork. You couldn't do that twice though.

Mack uses a ****y little engine of about 9 litres from memory. Cummins used in that class of truck were the NTC series of 14 litres and weigh around 2500-2600 lbs. according to specs. Oil companies liked Macks because of their low tare. Small engine, small gearbox, 34000 lb. tandem, thin rails. The 6x6 used heavy stuff except the engine.

pretty certain its 11l,

mack eng trans.jpg

Could be experience, could be because I have the emei In front of me...