The Stovebolt Site Forums The Parking Lot Big Bolts New to Big Bolts ( 6100 Brake question)

Just got a 1950 6100 chevy dump.
has the 2 speed rear end and vacum brakes-Brakes currently aren't working can hear air leaking when running.
does anyone know a resource for manuals and info for these trucks ?

everything you need to know can be found here. http://chevy.oldcarmanualproject.com/shop/1948_51truck/index.htm

air leaking from where?

don't know yet, just got it running, motor is still sputtering just looking for a manual to get aquainted with the system never work with air brakes before.

Vacuum brakes aren't air brakes, which do you have?

I'd guess vacuum boosted with a hydrovac, if you plug what sounds like a vacuum leak it may run smoother while you figure out the rest of it.

Grigg

If you are hearing what sounds like an air leak, you probably have a bad vacuum leak. And your engine will be way too lean and never will run right. I would remove the vacuum line from the center of the manifold and plug it until you get the engine right. I would then search for the source of the vacuum leak.

pretty sure I've got the wagner air brakes - big belt driven air compressor on the front drivers side of the motor, with the wagner 160psi guage in the cab and a big resevoir underneath the drivers side of the dump box.

Is the gauge building any air pressure at all? There's a "governor" mounted somewhere on the air compressor that routes air pressure to the valves inside the compressor and holds them open when the preset pressure is reached. Sometimes they stick in the "release" position and prevent pressure from building up. The governor is a round housing about 1 1/2" in diameter and about 4" long, held onto the compressor by two bolts.
Jerry

WOW !, Sounds like you have a Wagner Air Brake Conversion, which was an accessory add on from Chevrolet Dealerships. That's a "Rare" setup, you have there. I've only seen one, in all my years of messing with these Advance/New Design '47-'54 GM trucks. I'd like to see some photos of your truck, & Air brake setup. Air brakes weren't available on Chevrolet Trucks from the Factory until around 1956.

let me look how to post Pics here. and I will!

I see in your post that you collect the COE's that was what got me started on this, just missed out on a SWB COE dumptruck another guy showed up at the same time and opened with"i'll give you more than your asking for it" so I wasn't going to get into a bidding war at the beginning end of a project.
a buddy of mine stumbled on this truck and I couldn't pass on.

Yeah flem, click into my links, & you'll see my webshots albums. webshots would be a good photo sharing site for you to ad links to photos. Photobucket, & flickr also. Been collecting COE's, & holmes Wreckers, for over 25 yrs.

see if this works,
pics are from when we picked it up

http://s1198.photobucket.com/albums/aa460/jflem3/

Now that's a NEAT TRUCK. You have an accessory Vacuum booster pump mounted to the driver side firewall also. And accessory electic air horns. That's a "Great Score" there. These goodies, make for a "Rare" truck. Thanks for the photos.