b422

What models does it cover?

Ok I took it apart and the valve was stuck so i cleaned it and it seams ok but i her some air coming from the brake pedal so I'll take that apart and clean that next

Yes feeds brakes. I put an air line from the house compressor to check the air system and it was leaking from this spot instantly 

I have an air leak from this hole. What is supposed to be in there? Can I plug it?

yes according to the build sheet from mack museum it came with a en438. so you are correct some one had to put in some time to change the engine out.

I took off the fuel pump and pulled a number from it. Its an AC 855573

the motor is stamped EN464A

I only found stuff for the carb not the fuel pump

Some one put on an aftermarket 12v fuel pump. Is there a company out there that sells rebuild kits for the original pump?

Getting  ready to fire up the b422. Someone put on an aftermarket 12v electric fuel pump. No name or part # on it. I am gonna say it doesn't work. Got power to it and can hear/feel it run but no fuel. So my question is what size pump should I put on it.

I also can't fine a replacement oil filter for it so how would I go about changing it to a spin on filter

thank you for all the help.

i took off the line to the frame and checked it to a battery and it fits the positive on the battery.

are you looking for something like this?

Ok the cable that goes to the starter is not labeled or marked. The cable that goes to the frame is a silver strap. There were no batteries in the truck when i got it. 

7 hours ago, Maddog13407 said:

its only 12 volt,one hot 12 volt will turn it fine. as for filter and wires, id see if it runs first then screw with the rest. 

the guy said it has been siting for about 10 years. so i would like to change the oil before I fire it up.

How can i tell if it is positive ground?

I am thinking about trying to fire up this old girl. It has a EN 438. What oil/filter do i need and spark plugs and wires. Is there anything that i need to watch out for? The throttle cables seem free. I was gonna use the batteries from my backhoe to use they are a type 24 500 cca. Would those be ok to test the truck? 

I am trying to post a picture but it wont let me sorry.

I think it is a 1952 B42 with another cab. Not sure what the cab cam off of. asking $1000 obro

this is whats on he driver door. The bottom bracket is on the pass door but not the upper brackets. 

Sorry i didnt post a pic in the original post was waving trouble adding pictures

On 8/31/2018 at 8:49 AM, j hancock said:

Here is a link to a B61 harness that will give you some info.  Click the pdf.  Trucks were pretty basic and the wiring was similar between the two models.

https://www.bigmacktrucks.com/tutorials/article/4-b-model-wiring-diagram/

Series parallel switch info for pos and negative ground.

 https://www.bigmacktrucks.com/tutorials/article/70-wiring-schematic-for-series-parallel-switch/

 

Post some pics of your project when you get a chance.  Everyone likes pics!

 

Do these apply to a B422? The main thing I'm looking for is what batteries do I need to put in the truck. Do I need 2 or 4?

Looking for the passenger side mirror bracket for a B42.  the lower bracket mount has 6 holes and there are 2 top mount brackets that have 2 holes each

I have 2 air cleaners a grill and a hood from a B61 for sale. I tried to add photos but it wouldn't let me 

the 42 needs a cab tanks dump and who knows what else. I plan on keeping the 422 and trying to get it to run next year. I have other projects that i need to tend to before winter comes and save up some cash to get it running. Just trying to fill my knowledge about the truck and figure out what I want to do with it. I know long term it will get restored and modified but also be able to haul my backhoe and go to truck shoes

Truck look beautiful. Nice job