skip

Yeah mate youve got it right. I went through the same thing with our F model. It wont fit on the outside. I just ran grease in the front hubs, and put silastic on both sides of the hubcap adaptor.

Gday mate how are ya? Dave from NSW here good to have you on board. If you like Macks youre in the right place. Catchya round the traps. Skip

No R400s out here mate, just 600s and 700s. A bloke was tellin me the other day that they used a 185 V8 cummins in some early Macks in the states. Were they in the R400?

Gday mate how are ya? Great to have you on board and thanks for sharing the V8 knowledge. I might have a question for you from time to time with a couple of 864s in need of repair. Im also after an 865 to go back into an F model. Would you know if you can still buy liners for those engines? Thanks mate, Skip.

Gday all. Sorry i havent been about for a couple of days. Thanks to everyone who wrote back, it gives me some pretty good ides to go on with. Keep on truckin eveyone, cheers. Skip

Gday everyone. This may seem a stupid question but in your experiences, what is the best way to remove and refit an R model cab? Would you use a large beam through the doors an sling the ends of it? Thanks for any help. Skip

How are ya mate? There is a bloke out here in Australia who is rumoured to be importing an LTL with a V12 Halls-scott. Do you know if this was a genuine fitment? I dont know too much about the early ones, but Im lead to believe it is original. Cheers mate, Skip

Its obviously not bringing up a code? Our Qantum was goin like a dog and the local mack blokes put an intercooler in it, but every now and then it would flash up with an injector code. So obviously the intercooler didnt work. We later found the gear drive in the fuel pump was floating around and not giving it enough fuel. Something to check. Also maybe check the speed sensor on the back of the box.

Gday all. Im wondering if anyone has any ideas or had experience with making or refurbishing name plates and tags. Ive got a few on my Flinstone that Id like to fix up. One is the engine operating range plate on the dash for a V8 -1700-2300RPM. Also the TRQ7220 shift plate. On the engine there is a plate on each front valve cover with Thermodyne Diesel and patent numbers. Id like to get them done in black an white again, and the same goes for the pump timing and valve clearance specs plate on the top of the auxilliary drive. And does anyone know what the piece is that fits into the block just above the flywheel housing on the END864, My guess is a breather, but it has breather pipes on the valve covers. Anyway this little piece also has a decal on it, but it has been rubbed off. Does anyone know what it said? Any advice on any of this stuff would be great. Thanks everyone, Best regards, Skip

Gday Barry. They look great mate. Can you ship them to Australia? If so I would grab 2 of the green ones. Cheers, Skip

Welcome aboard mate. Tell us a bit about yourself. If you like bulldogs I think you should find your way around fairly easily. Skip.

Where are you based mate? I thought they had fire rings, Ive got a set of gaskets there and Im sure that they have removable rings. I must be wrong. Thanks for that. Has that been changed to a twin plate? I have a 71 F785 with a cable operated push clutch. Skip

Im not totally sure on the motors doing head gaskets, there arent many around here any more. The 865/6 had a bit of trouble if heads werent re-torqued periodically. I think a lot of blokes out here used to re-torque them around 50-60thousand Kms. Im not sure about the 864, but every block Ive seen has major shuffle marks on the deck surface, so I would say they were in the same boat. The 864s also cracked around the counter bores and between the counter bore and some head stud holes, as there is only about 3/16" surface area. They have fire rings. Ive just had a block repaired and we paid really close attention to these areas I mentioned. Do you have a T864? There were only ever 2 or 3 in Australia. The only one Ive seen is on ebay in an R719.

How are ya mate? Where'd you come across them? and are you getting rid of them? Dave Willis

How are ya mate? E9 injector wont fit into a 2 valve head. It goes in between the valves under the tappet covers whereas an 865/6 goes in on a slant outside the tappet cover, like a 6cyl 2 valve. E9 exhaust wont fit an 864/5/6. They have 4 ports per side whereas the old ones only had 2. And the 865/5 manifold wont go on an 864 either, as they have 4 bolt holes instead of 2. A pain in the arse. I have never seen a T864 so I couldnt comment on compression ratio or piston type, but I would nearly be certain the pistons wont be interchangeable with an 865/6. The 864 series was always grouped with the 711 series. While the block and front cover looks similar between the 2 V8s there arent too many parts that are interchangeable. The Auxilliary drive was similar and you can put a Vee pump on an 864 but there was a different housing on some 865s just to make life complicated. Hope that rant wasnt too painful. Good onya mate. Skip

If its difficult to turn make sure the adjusting nut at the bottom hasnt been wound uo too tight.

Mate if you have any more trouble, ring Neil Owen in spares at Mack Brisbane. Hes great with the old stuff. Hes been there over 30 years I think. 0737183527 is his number. Regards Dave Willis

Thats pretty well spot on mate, although we have a '71 F785 and it has full power steering with the steering box mounted behind the front wheel. I havent seen another like it, but it is a genuine setup. I dont think the F models with a setback front axle were an FM, but Ive certainly been wrong before. It was a bit of a trend at the time for different weight laws I believe, Leader did the same thing. There werent too many out here. The air ride cab I dont think ever came out here, Our FR786 coolpower has a set of shockies inside 2 coil springs with a sway bar. Someone has also put an extra set of shocks right at the back of the cab so it gives a pretty good ride. Ive seen a couple of European F model cabs and they have an extra deep toolbox on the drivers side(RHS). It is nearly as big as the one on the LHS. And another interesting part of the plastic cabs, the air intake for the engine used to go through the roof of the cab via a scoop at the front and down to an aircleaner barrel on the RHS under the back of the cab. It wasnt a very successful idea as it was fairly noisy and it restricted air flow, particularly on the V8s. Most of them were changed to an air ram up with the smoke stack. The early cabs had fibreglass doors and panels but the later ones went back to a steel door. They were interchangeable. Good to know though, an F model with a coolpower is still a bastard to get the radiator out of!! Some things never change. Skip

How are ya Thad? Those grilles were available on all F models with the fibreglass cab, 6 or 8 cylinder. They were made by a crowd in Melbourne called Reinforced plastics, who also made the cabs for the 3800 series Atkinsons. Notice on that F model in your picture the extra long grab handle? they were only available on the plastic cabs. As for Leaders, they were designed by the bloke who brought Macks into the country, Cyril Anderson. He wanted a cheap, light truck for short haul work and Mack wouldnt make him one so he built one. Were available with 3208, 3306 and 3406 Cat engines, and the last had 692 GMs in them. I should have a couple of F models in my gallery, an FR686 and an F785. Cheers mate, Skip

Gday all. I dont think you would get 500 out of an 864. Ive heard of a few 866s being taken out to 450-500. The 865 was a Maxidyne engine with lower hp than the 866 but more torque. I have heard of blokes using an E9 pump on an 866 but not an 865. As for the T864 the rotary pump was a bit troublesome and the twin turbo setup was fairly complicated so they canned them both and went for the single turbo and vee pump. The T864 was 300hp as already mentioned and out here the 864A was rated at 280hp in the R models and a few F models. Cheers skip

What year model is it mate? The early ones were built on Renault cahssis rails and they were a nightmare. Weve got 2, one with an ISX Cummins in it and the other with a 410 Mack motor, and they are both on CH rails, and arent too bad to work on. Ours are 2004 and 2006 models respectively

Gday all. Ive got a couple of END864s that Im tryin to get going. and Im like the boy with the wheelbarrow- Ive got the job in front of me. Both of my blocks have cracks between the head stud holes and the counter bores. If anyone is familiar withe the deck surface they will know that there is a very narrow area between these 2 holes, maybe 1/4" at best. As blocks are scarce as hens teeth my options are limited. Bearing in mind I want to keep these engines in the trucks as they are quite rare. One machine shop has the idea of boring the hole out and pressing an insert into it. No one seems too keen to gouge it out and weld it then cut new counter bores out. Im wondering if anyone has encountered similar trouble and what they did to dig themselves out. Thanks everyone, Skip1