h67st

I finally got the alternator bracket straightened out, installed the radiator, hooked up temporary fuel and air start tank, etc. One question; the fan belts vibrate between the WP and crank pretty heavily at certain RPMs, even though I have them pretty tight. Will worn sheaves cause them to vibrate? Any other ideas? I don't want to throw the belts.

I used Nason DS138 which is supposed to be a good match for Mack engine gray but it's actually got a lot of green in it.

I've got a vinyl record that came out of one of my dad's magazines (CCJ? Transport Topics?) in the 70's called "Sounds of the Turbine-Powered Peterbilt". These old prototype trucks are really cool!

Really looks sharp!

That is nice!!

My dad had a couple of Astros back in 1974, some of the features were pretty nice. Low wraparound dash, big windshield, tilt wheel. They had low-mount side mirrors, I don't know how well those worked.

Thank you Joey!

I was working at a Cat dealer in 1981, we had a brand new 3208 come in that would make a sound like valves hitting the pistons every time you started it. We checked a lot of things over before the lead mechanic noticed the spaghetti line feeding into the intake. Come to find out it had an electric solenoid that put a shot of ether in there every time you started it, no thermostat to cancel it when the engine was warm.

The control line port is 1/4 pipe by the way. Seems more like a 3/8 line; if they want you to use 1/2 they should have put 3/8 pipe threads there.

I'm using all Bendix brake valves and nylon lines on my truck; this is an R12 relay valve for the service brakes. What size control line should I use from the treadle valve...3/8" or 1/2"? If anyone has a service brake relay valve on their truck, could you look at what size your line is? Thank you!

I got this in a lot of Mack parts; I don't know what it is. The bolt holes are 4-3/4" on center...you can see what the part number is (it was still sealed in the bag). If anybody can use it, PM me your address and I will ship it to you.

On BigIron auctions, in Nebraska. Looks like a nice truck (with the exception of wedge brakes). Two weeks left on the auction. https://www.bigiron.com/Lots/1979MackRS686LSTTATruckTractor

There's also a 1979 R model that looks decent...I'll start a new post for that one. https://www.bigiron.com/Lots/1967MackF737STTACaboverTruckTractor

Definitely a White 3000. I wonder if the concrete blocks are stacked on the Bobcat tires to keep the wind from blowing it away?

$8,500.

My single axle donor truck is an H67LT so it's got aluminum suspension brackets and air tanks. I cleaned the tanks thoroughly (inside and out) and pressure tested them. I used a jitterbug with 320 paper and then wet sanded with 600, 800, and 1000; then polished with Mothers. They're still scarred from decades of hanging under a truck but I like them anyway. I'm not going for a showroom new look, I like a truck that has some character to it.

That's above my pay grade. What is the coil on?

What condition was he in after the hit? Interesting that you say that, because I got hired as a truck fleet mechanic in 1984 at Pic-Way Shoes after the guy before me stopped in the street to pick up a carton of cigarettes that someone dropped. A lady who was legally blind ran over him and he was killed.

This ad on ebay says this was part of their historical fleet and stored indoors. Looks really sharp! $34,500 or best offer. https://www.ebay.com/itm/1989-Mack-R-R600/124579976948?hash=item1d018b96f4:g:Kc8AAOSw0PNgLrYA&autorefresh=true

The ad is gone so I think it's sold. He told me he had 8 guys wanting to come look at it yesterday.

I drove down and looked at this truck today. It's got a 4 valve E6 with the original Quadruplex in it; the frame has been sectioned in the middle and newer Mack axles with Neway air ride have been added. The transmission blew in 2015; it has been completely rebuilt but the truck hasn't been on the road since then. The owner said the motor has a problem; at first it ran wide open and then it wouldn't come up off idle. It's in much better shape than most old H models but it has a lot of bondo in the cab that is all bubbling out. He can probably get his asking price since these are so rare especially with a live tandem. https://www.facebook.com/marketplace/item/772076626992316/?ref=search&referral_code=undefined

Good catch!!

I worked for a fleet in the 80's, we ran into a lot of dirty plugs or receptacles that would burn up the connectors. We'd put in a new plug and receptacle, no more trouble. Drawing 1500 watts all night will test the quality of any connection.

You ain't kidding about stimulating...the Axalta paint for my cab was $700/gallon.

Did you buy new circuit breakers? Where did you get them?