Vladislav

Welcome to the forum! If I remember right there were a few threads posted in the past regarding Mack buses on here. So working with the site search tool may bring some results. There wouldn't be an answer for the exact year. But possibly info which leads to a certan time frame. And yes, we all like to see pictures of old Macks! Vlad

I'm glad to be of service, Jojo. Indeed, my position allows me to see and show things from different angles. So I do that when I can. At the same time I'm not in a centre of the Mack land. And see much less overall from where I'm sitting. But BMT is the perfect window to look through so I'm also thankful to folks who post on here.

Intersting. Please post more if you put your hands on a Magnum some day. I like the look of those high towers with air suspended cab. Here we have many cruising the roads. Renault branded and usualy with variations of E7 - ASET or E-tech. Some older ones had inline-6 Renault engine and a few are still around with E9-520 mechanical or E9-560 V-mac (or so) with hydraulically controlled injection advance. But fewer and fewer every year, due to the costs of spares for a E9. From time to time a desire pops up in my mind to buy one of those but with amounts of iron I already have I stop myself from that. But those trucks are all Renault chassis and a single drive axle in 99% cases. Only once a V8-500 tractor was for sale with tandem drives but way more expensive than I would give for a hobby truck. And once I saw a similar one parked in the street. Even not sure if that was the same rig. Also dark blue in color.

My vote is the third from the top raw left and right images. If anybody is interested in it The original work paint scheme may worth reproducing if has any santimental walue to you. Or may be bringing memories to others and you like to please those folks. There may be a variation of that approach as I finally decided to do with my R-model. I kept original appearance in general (the color and colors of stripes) but modified it and made more complicate. And switched to metallic. That was made after I learned many people knew the truck in its older days but that look appeared too simple and uninteresting to me.

BTW a question. Don't you know any Aussie Magnums (Renault Magnums) were assembled on CH chassis too? Or Renault rails only?

Cool job and interesting truck on my mind. Sorry no help with ABS connections from my side.

BTW the horns assembly is very similar to what was used on B-models fitted onto roof. The difference is the attachment bracket. B-model has it at a side if relate to those on the picture. So the horns are left and right when on a roof.

Hi Harry, Those are original to the truck. And the electric air valve seems too. The horns are Bendix-Westinghouse. And the truck was made in 1944 (or 1943 - shame on me but I'm always forgetting the exact date).

BTW scrapping it you're getting about 150 kg aluminium

The most probably the synchro clutch got worn out. It gets bad together with Hi mating gear. In this case you can't go in Hi but can in Low. Other common issue is worn sliding clutches which shift gears in the main box. Their teeth are square at the ends when they're new and get round when worn. You're difficult to catch the moment to shift with that. The condition of sliding clutches can be observed if you remove the main box top cover which is very easy deal. The synchro issue in the compound box needs taking apart to investigate if the memory serves well.

The shape is very close to heavier early F-model fenders indeed. Difficult to judge by the photos but if so they (and the truck) would be even more interesting. BTW the tyres look quite big. Are they 20 inch rims or larger?

Your welcome! And I finally found the pic. It's my truck. The engine is EY707. It's gasser but not a firetruck so only one distributer. But the block casting is similar to what your baby has. The arrow is where to look at.

Ok, +4C = 39F in Moscow in the recent days. Quite relaxing for January Nice Macks, look like toy trucks observing from the distance.

Hmm... What are those fenders? Just noticed. They don't look like E-model fenders which seemed used on FP's. Actually there are not many sources to check out the correct look. There are a few (one or two?) factory photo's in F-series Mack archive book. And those represent typical E-model fenders. The same style as on Gary Mahan's truck. Looking the chassis number you posted 1010D it's 10th truck made. So possibly special fenders were used. Or just aftermarket convertion (but of quite good quality).

The engine number is stamped to the front from where your two distributers are fitted. There's a cast portion of the block which has a drilling for the injection pump drive shaft when the engine is diesel. The number is stamped into the top surface of its casting. Sorry for late response.

Yes, stuff gets too high in the cost definitely. Seems like too many people aren't eager to check out used parts or fabricate any. And sure there are more and more parts in modern vehicles which are impossible to find by other ways than at a dealer. To me it seemed European car/truck manufacturers started establishing as high parts costs as the customers could afford for a couple decades earlier than American ones. I was honestly very surprized purchasing a brand new shiney Bulldog mirror for $35 in 2012 when at the same time Mercedes was offering plastic outside one for their Gelandewagen for Euro 700 (or so). But the times got a change pretty soon (and too unlikely). To me it's still difficult to suit the fact that bracket was extimated $1K since I have a couple laying in my shed (or 3 or 4-?)

The engine number more looks correct in the built sheet as I used to see them. What was the spot you took the pic of your actual number? Mack used to stamp them into the top of a portion of an engine block at the right front of it. Sounds like a great experience visiting the museum! Been there, done that

Cool looking truck and as it appears in very good condition, congrats on the purchase! I'm also in interest for the part numbers for the cab shocks and airbag. Checked out my copybook but found it only conteining data for a R-model. Airbag is different definitely (there are two of them in a R) and the shocks I don't know. R's had two types of shocks - for air suspended cab and for a solid mount.

Maybe that 3.2K figure included drilling 4 holes in the carrier for the rod bracket?

The hoods seem being interchangeable but with some efforts. Low rear area of the fenders of the 2nd gen (after 1985) hood has cut offs which don't take place in pre-1985 hoods. That's what can be seen on pictures of two hoods. The hinge mounting area looks similar between two and the same for the grille and stainless top bezel. Sure the headlights are almost different as pointed above and that spot doesn't look of possible easy modifying. I can tell I saw many photo's of the early RW's with later hoods (judging by the headlights) and vice versa either. So seems like a relatively common convertion.

My personal experience figuring air brake issues was of that way I mentioned above. Read basic system, looked over what I had on a truck, found a valve I couldn't figure a matter of, googled "Bendix air brake valve" and idi'ed my one looking Google pictures. Passed that route for two trucks. Met unclear cases 2 or 3 times and got answers or advices on here. But had to explain what I was against of and my basic knowledges allowed me to do that clear enough. Good luck on troubleshooting!

The rears are Mack rears and they look original to a L-model excepting the carriers. To a heavy L-model I would say, LJ or LM. I can't tell the capacity, no less than 44000 or heavier. Original differentials had less bolt holes (10 if the memory serves good) and there were two studs which went through the banjo from underside and attached the diff housing. The studs take their place but I never had idea CRD92/93 may fit into those old banjo's. I used top gear sets off 92/93 and installed them into old carriers keeping original bull gear sets when "accelerated" my stuff (my original diffs were stamped CRD32/33). The power divider is in its place on the photo's. Has long housing as they all were up to a certain year (60-something?). You can see them in B-models normally. The principal is almost similar to the later style in a short housing, even the inner cam and peanuts are interchengeable (if I'm not wrong). Those long dividers were both used in carriers with 10 mounting holes and later ones with 18 (or how many?) holes as CRD92/93 are. I'm not sure if a CRD92 wouldn't be called different with long divider though but besides of that it's identical. But the top (bewel) gear set is special for the long divider carriers, the later style pinion can not be used since it's not long enough for that. The front axle is also well looks like a heavy L-model axle. As for the chassis number it may be found at the left (driver's side) frame rail above the front axle beam near the top of the rail. Some L's had it there. Some had at the rear of the chassis I heard many times but never saw in person. And not sure that works for tandems, I heard of single axle trucks. Vlad

It's not an easy deal and definitely time consuming to explain all principal of air brake system on here. The matter is there are plenty of articles on the net describing it down to a last nut. Some trucks may have some components and some don't. But basically they're all the same. Sure you may find trouble figuring out a certain special situation, how it was in the beginning of this thread since that rotochamber acrtivating hydraulic front brakes are not a common design. But in the case you put your question at the moment it seems you need to pass a basic stydy (which normaly takes an evening or two of reading). Than look over the brake stuff you have on your truck figuring what is what and than start disconnecting or capping different lines figuring if the air goes to where it should to and doesn't to where it shouldn't. Sure the site crew is always of help. But you may have answers for particular questions. Not much possible to investigate and fix a whole brake system of a truck which is unseen and you are in a few hundreds of thousands miles away.

Great! And thanks for sharing those old days' pictures.

Looks like a cool toy to play with and she's already yellow! Happy upcoming New Year!