67RModel

That is interesting. Honestly, that engine doesn't really look like the other Scania engines I have seen in Macks before, which have been very limited. The ones I have seen in early 80s R models If I remember correctly had 3 separate heads. This version seems to have a single head. Also, I thought the Scanias were a late 70s, 80s thing. Didn't realize they existed back in '73. Interesting. Those two DMs would be neat to have just because of the uniqueness of them. The frames and chassis are in near perfect condition and they will probably sell for next to nothing.

36 minutes ago, cruiseliner64 said:

would this change things with the gearing/speed???

Yes. going to a shorter, smaller diameter tire will result in lower top speed and more pulling power at equal rpms. By how much you would need to know the revs/mile of a 1200 tire versus an 1100 series and then run your calculation. That information is published by the tire manufacturers.....

Didn't know where to put this one. Here or in the for sale section. This 1973 400 series DM is coming up for auction in a few weeks. There is actually a pair of them this 73 and a 74 but they are specd the same. They are DM487Sxxxx. I don't think I have ever seen this engine before. I think this was well before the times you could get a Scania so what is this? Also these trucks have a strange Eaton 13 speed I have never seen before. They actually have 15 different gears but 13 progressive. RT6613...

1973 MACK DM400 | Online Auctions | AuctionTime.com

1974 MACK DM400 | Online Auctions | AuctionTime.com

This 1956 B-61 Dump just sold today for $6000. I thought that was a pretty good buy. The truck looked excellent from the photos. Didn't seem like there was a lot of interest in it. Just two guys going back and forth on it.

1 hour ago, MACKS said:

Six gallons of oil diluted with four gallons of  diesel kiss that engine good  by..

I doubt it. Somebody can correct me here but I imagine if the oil pressure is low enough to cause major engine damage it will shut off and not restart. I would think an ETech would have these electronic protections by 1999. This happened to me with a model year 1994 DDEC III Series 60 Detroit and the engine shut down light came on. I used the override button for a time but got to a point where it shut itself off and wouldn't restart. I have a more detailed write up on it somewhere here on the forum with the whole story but what it amounted to was the #5 injector was seriously malfunctioning dumping lots of raw fuel into the cylinder and getting past the rings. Crankcase was so overfull that when I drained it out the mixture was so thin I was able to dump it back in the fuel tank of an old farm tractor and it burned it like regular off road fuel. Not a lick of damage to the engine. I think I got lucky but I also think that if the oil pressure is too low the ecm will protect itself from an idiot 🤣. Mine went from running normal to broke down in less than 2 hours and yes there was very noticeable signs and symptoms but I kept running it. I was young, dumb, and an idiot. As far as I know that engine was removed from the truck when I sold it and put in a much newer truck and as far as I know is still running like a sewing machine to this day. In my case it suddenly developed a very noticeable noise. From within the cab while driving it sounded like an exhaust leak so I kept going. Then when it all came to a head I was on a major interstate in an 8 or 10 mile long single lane construction zone with jersey barriers on each side. Nowhere to pull over. Fun times.....

Those tables are in the E6 and E7 engine overhaul and service manuals 

I am just curious if the blue house right along the road in the foreground of the attached photo was destroyed. Also, It might be too soon to ask but do you think any of this will be covered by any type of insurance? 

12 hours ago, terry said:

Anybody know what it brought?  Terry

$5720.00 plus 10% buyers fee......

I couldn't help but wonder if there was a Google street view of this area (Old Fort Rd). Turns out there is. For context this is what the last image Dean posted on Monday looked like prior to the hurricane (March 2023) I have reattached it for a side by side reference....Insane to say the least.

He sounds like a quintessential mobster. 

9 hours ago, JoeH said:

Personally I'd get the truck towed home, I wouldn't drive it.  

Yea I didn't want to sound like a $hithead but honestly after 3 trips from Georgia to Tennessee, the hotels, parts, Lost time not working and potentially breaking down half way home he'd probably be money ahead or money equal to just have it towed. Like what's your time worth?

On 9/22/2024 at 6:32 PM, alabamaslammer said:

Cranked it with ether and then it died.

On 9/22/2024 at 6:32 PM, alabamaslammer said:

I walked back to my truck, got a can of starting fluid, and she fired up with ether so I could pull her off the public road.

Absolutely under no circumstances should you use ether or starting fluid on a Mack ASET engine. It will wipe out the ceramic lifters before you even realized what you did. Big No-No.

Other than that it sounds like a classic fuel starvation issue. If it runs good for a while then it has compression so no issue there. Obviously there are a lot of electronics and an ECM involved on an ASET AI, which could be a culprit, however, from the story you tell it sounds like its running out of fuel. Any indication from the previous owner why they parked and/or sold it?

8 hours ago, mowerman said:

Very well, put bud thanks for that. It’s an amazing how many stupid people we have here. Nobody cares about your killing your babies regular I think they oughta get rid of those commercials. If you want to kill you’re a baby go for it. It was God‘s gift and you threw it away, wow ha ha jokes on you bitch …. Bob

Its funny how they say abortion is A OK but if a pregnant woman gets murdered its a double homicide.

The antique B model twin stick transmissions were true 10, 14, 15, 18, and 20 speed transmissions meant to be split shifted because the engines of the time had a very narrow power band, had very little torque rise and were not designed to be lugged below 1500 rpm. A Mack of this vintage with an EM6 285 is a Maxidyne engine has a very wide operating rpm range like 1100 - 2100 rpm so only 5 gears are needed. The guidance is correct that your transmission isn't meant to be split. This is mainly because the sequential splits are not progressive shifts. There are probably combinations of the two boxes that will work in certain scenarios but they are not all numerically lower progressive shifts from 1 Lo. Technically that transmission is supposed to be used with the main box in 1st when the auxiliary is in Lo. Then once you get moving shit the auxiliary to direct. then the main to 2, 3, 4, and 5. Reverse has 5 speeds that can be shifted while moving. I doubt you would cause harm to it using the auxiliary Lo in gears other than 1st so long as your not grinding or jamming them in. 

14 minutes ago, JoeH said:

9"x22.5" rims.

Demountable / Dayton 9x22.5s are getting extremely hard to find and expensive. 

Looks like you should purchase some new tires too. Those two at the 5&6 position look pretty thin.

purchase a new one with the correct tree / ride height.

On 8/26/2024 at 8:14 AM, Slab Hauler said:

Have an RD886SX with a little 300, 5spd, direct/lo/rev compound aux, 80k rears wearing 12r24 rubber. solid walking beam suspension. 20K fronts. Triple frame. The truck is NEVER on the Hiway, and never will be. So get that out of your mind. A typical day is moving a roughly 175-180k gross load about 2 miles on flat ground with maybe 1/4 mile of that in reverse. Anyway, the 5spd is on it's last legs. Don't know the history before we got it. Going to go Allison when this happens, just not sure which parts we are going to need. Any suggestions? Already know custom driveshaft.

I would say a lot more information is needed. First off, what year is the truck? If its mechanically injected and no ECM then you are probably limited to the Allisons that require no electronic controls. Would any of those even be suitable for this application? Then you run into mounting / crossmember issues. Are 80k rears planetary drive? Might run into ratio problems but probably not in this use case. I'm guessing you probably never get above 15 mph on flat ground but definitely something that would have to be checked....ratio of your rears. There might be other things in play but honestly I can't see how this would be worth it. Just get another TRXL 107, or overhaul the existing one and put it back in. You probably never come out of 1st direct anyway. With everything involved, an Allison swap would be hard to justify to travel 2 miles per day on flat ground.

Ironically when I was on my way to Macungie I saw a brand new Scania dump truck being transported on a lowboy heading East across the PA turnpike near Mt. Joy, PA. I was driving so I couldn't get a picture but it was definitely a brand new single axle Scania. It had maybe a 12 or 13 foot dump body on it and had super single tires on all four wheels. And it had very large Allison Transmission decals across the side of the dump box. It looked like a promotional vehicle for Allison.