DMorgan

I have the windshield and the rear window seal, PM me.

NEK

Nek, How much do you want for them both?

Thanks, Daniel

Most EN401's ive seen were the blue-gray Mack color, same as the 673's. Some of the early ones had a black oil pan and timing cover. Most of the transmissions in the late 50's into the 60's were the same blue-gray color. and most of the transmissions in the early 50's were black also. Hope this makes it confusing enough for you, Mack never usually made anything cut and dry. ~Matt

Matt, Thanks for your help. I have a 673 engine that came out of a 753 truck that is painted a darker metalic blue. I think that it was probably arebuild that they put in the truck about 20 years ago. I don't know if it is the original color or if the rebuilders painted it that color.

Thanks for your help, Daniel

Hey everybody,

I have a 1963 Mack B 421 with te EN 401 gas engine in it. What I was wondering was, what color was the engine and transmissions painted when they came out of the factory? Thanks for any input,

Daniel

hi i'm also doing an l cab model lfsw try pat walsh restorations they list the parts you mentioned. e-mailed them about availability but they never answered. they were moving to new shop at that time maybe that's why. they have a web site type in pat walsh restorations should find it on google.

mackmech, Thanks for your reply, I have been on Pat walshes website before and had the same problem you did. He'l send you a catalog in the mail if you give him your mailing address. But, I was talking to a guy named Matt Pfall (he's got a link onthis website) and he said that if you have th aluminum aound your windshield, you had better not break one single piece of the rubber because there is nobody that makes new ones. So unfortunatly, as it looks right now, were probably going to part it out to help out the restoration of a different Mack we're working on. Thanks again for your reply.

Daniel

I think you could purchase whatever you needed but there are mandrels and guides used to both push, and pull the existing bushings and shells out. If the beams are worn into such as used way beyond "worn out", it can really get expensive. The pivot pins are difficult to extract without the proper hydraulics and adapters as are the retention pins to the axle housings. The bushing kits themselves are probably not over a couple hundred dollars complete with bolts, but the labor is a killer.

Rob

Rob, So far as I can tell, the beams don't look too worn out at all. They still have the bushings in them, its just the bushings at the bottom of each bogie that are gone. And if it gets too tough trying to get it apart, I know a guy thet has either a 60 or 80 ton press that might help it along.

Thanks a lot for your help, Daniel

A lot of truck parts vendors that rebuild drivelines can rebuild the walking beams. It is costly and seldom performed any longer due to age of the suspension. There are also pins and it takes several tons of hydraulic pressure to get those out.

Rob

Rob, do you think that I could buy the rubber bushings and put them in my self? And also I'm not real sure what you mean by the pin that is hard to get out. Are you talking about the big pin that the beams pivot on? Thanks for your help, Daniel

Hello everybody,

I got a B-421 "SX" with the walking beam (NOT Camelback), suspension on it. I was wondering if anybody knows if Mack or anyone else makes reproduction rubber bushings for it? All you can see on mine is a few remnents of rubber left. Thanks for your help, Daniel

I think back in the day you could likely get blue or green. A lot of guys did change the lense colors, but likely illegal by the letter of the law. I don't think I'd sweat it on a toy truck.

Larry, Thanks for your reply. Daniel

Hello everybody, I have a set of 5 glass cab lenses that came off my 753. There were 3 amber lenses and 2 what looks to me like blue lenses. What I was wondering was, were they considered blue or green? And also would they be legal if we put them back on the truck? Thanks, Daniel

Hello evrybody,

I got a 1960 B-753 "LT" with the "L" style cab on it. It has aluminum winshield frames on the front and more of a squarer back window. What I was wondering was is if anyone sells parts for the "L" cab. We would need all the seals for the windows doors and everything. But as it sits right now, we dont know if we're going to go on with restoring he truck later, or just part it out. It all really just depends on if parts are available for the "L" cab. Thanks alot, Daniel

Keep us guys employed getting them backed off to get the wheels off anyway Glenn!

!

Thanks everybody that replied to my question. Sorry tht I didn't get back to you all earlier but I had some prblems with my computer. Thanks Again for all the help. Daniel

Good engine in it's day but parts are long obsolete. There should be a metal plate or tag that is drive riveted to the passenger side of the head at the front. The number is sometimes stamped into the block under where this tag is/was. The tag will have the word "Magnadyne" pressed, or silk screened onto it.

Not a lot of power to be had out of that engine and it likes it's gas.

Rob

Rob, Thanks for the information.The tag on my engine is missing, i can see the two rivet holes where it was. Also I found a place that is supposed to have bearings, rings, crankshafts, injectors and a lot of other parts for the old Mack gas and diesel engines.I don't know if they have parts for all the engines, but they say that they do for The ENDT 673 and the EN 401 engines. Their website is jobbersinc.com . I have not actually talked to them so I don't know for sure if they actually got the parts or not.

Thanks, Daniel

Hello Everybody,

I just bought a 1963 B-421 "SX" with what I think is an EN 401 engine in it.We got the engine running pretty easily after we got it home and I was wondering how reliable these engines were? Also I was wondering where the engine model and serial number is located? I looked all over and couldn't find it.

http://www.axletech.com/service_manuals/pdf/standard/mm4r.pdf This is a manual you can read some if you go into them. If you do them right and make sure the adjucters are not bad and then clean them and use the grease that rockwell makes with new seals on the plungers you will be able to use them for many miles. Dont use any grease unless it is a water proof grease. Make sure the drums are good and smooth and no grooves in drums or on the shoes. Adjust them up be for you mave the truck If you dont do this you sre only playing with your self.They dont have a lot of travel so get them up almost draging to start with.They in most cases are self adjusting.

Theakerstwo, Thanks for your reply, that website should help us a lot. Thanks, Daniel

Wow, I thought they'd be alot heavier duty than that. Thats less than most trucks today have on one axel.

Steve, I got to thinking, and now i feel real dumb. I don't know what i was thinking, at first i was thinking that it would for some reason be 34,000 on each axle, but then I remembered that it is the whole bogie rating.

Thanks a lot for your help,

Daniel

Wow, I thought they'd be alot heavier duty than that. Thats less than most trucks today have on one axel.

Had a tractor with wedge brakes once. Just had to be sure it had a trailer behind it with good enough brakes to stop the whole rig!

Thanks Rob & David for your input. We'll be going through he whole truck and was wondering if they would need to be replaced with something better. Thanks, Daniel

Daniel, You have a 34,000 lb bogie. Steve

Thanks Steve for the info. Is each axle rated at 34,000 or is both rear ends put together rated at 34,000 Lbs?

Thanks, Daniel

Hey Everybody,

I just bought a truck that has wedge type brakes on th rear axels. I was wondering if anybody has messed with them before and also how reliable are they and how well do they work? My truck has four brake pods on each rear axel,(two on each side). If anyone has any advice, I'd appreciate it.Thanks,

Daniel

rob, i just realised i got you mixed up with a different guy that I'd been talking to about the 673. Sorry. Daniel

Rob, Thanks for your input. I did find a place with injectors and a few other parts. They were pretty expensive but if someone really needed them you could get them. also where abouts in Bakersfield are you? And whats you phone number? I'll give you a call sometime. We might be interested in your engine and transmission. Thanks, Daniel

hello everybody,

I just bought a 1963 B-421 "SX" with CRDP 92 & CRD 93 rear ends in it. It also has the Mack walking beam suspension under it. what i was wondering was is what is the approximate axle weight ratings for this truck? Also the axle number on both rear ends is SWD-73. Any help would be appreciated. Thanks, daniel

Hello everybody,

I just tore apart a Mack B-753 "LS" truck with an ENDLT 673 engine and aTriplex transmission. What I was wondering was is how good of a set up were they? Would it be worth going through and rebuilding the engine and transmission or would it be better to put in a Cummins and a 10 speed?

Any input would be appreciated, Thanks, daniel