h67st
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Everything posted by h67st
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79 dm 685sx tires or hubs
h67st replied to Tj87's topic in Antique and Classic Mack Trucks General Discussion
You're right...your hubs are 24" in diameter, 24.5" tubeless are 22" diameter. The tires are 24.5" inner diameter but they have a flange on the rim that reduces them to 22" hubs. -
What engine do you have?
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H Model Restoration
h67st replied to h67st's topic in Antique and Classic Mack Trucks General Discussion
I've seen a bunch of trucks with u-bolt mounting that had blocks of steel welded to the frame rail flange to keep the thing from moving back and forth. Of course, they shouldn't be welding on that flange. -
B-73 Restoration
h67st replied to mattb73lt's topic in Antique and Classic Mack Trucks General Discussion
It's funny...the cab doesn't look that bad in the "before" photo but I know you had to cut out a lot of rust and damage to rebuild it. Same way with my truck, bondo covered many sins. -
H Model Restoration
h67st replied to h67st's topic in Antique and Classic Mack Trucks General Discussion
So they don't want the fifth wheel sitting directly on the frame rail? I wonder why that is. -
H Model Restoration
h67st replied to h67st's topic in Antique and Classic Mack Trucks General Discussion
I finally got the fifth wheel mounting figured out, I took videos of some of the work. -
Good question...I don't know.
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Phone 813-777-2961, email mactrucknut@aol.com .
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B Model Wiper Motor Diagram FDC
h67st replied to txjcfsr's topic in Antique and Classic Mack Trucks General Discussion
The guys at Rome are top shelf...they hooked me up with everything I needed for my truck at very good prices. -
Plugs for trailer air lines
h67st replied to skydawg's topic in Antique and Classic Mack Trucks General Discussion
When they make pipe fittings, they don't size the hex to a certain wrench...they figure you will use a pipe wrench or crescent anyway. -
Those are definitely rare, but that one's pretty rusty for $18,000. I've never seen a fifth wheel that has ears that rest on the frame rails like that.
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Judging by the photos, it looks like a nice truck. Too bad it's not a twin screw.
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Coca Cola LJ Mack colors
h67st replied to 1961H67's topic in Antique and Classic Mack Trucks General Discussion
You hit the motherlode of NOS parts! It's really looking good. -
A guy named "Cam" on the ATHS forum says that the NHRS6B is a supercharged 743 cid engine, but supposedly they quit putting them in trucks in the '60s so maybe not the right engine code for this truck. If it's a '79 it should have an 855 Cummins.
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I started looking things over to see if it will run and found the intake pipe missing a clamp, allowed rain water to go into the turbo. Fortunately the shaft still spins free, but I want to pull the housing off to see what is lurking inside. A great example of something simple like a clamp causing bigger problems. The engine tag says it's a 335.
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I can't even remember the last time I saw a truck that old running up and down the road making money. I wish I saw more of them!
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One fine looking truck!
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I was back up there and snapped a couple of engine photos.
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Well, it's home now. We loaded it Saturday and brought it down.
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Wheel seal part numbers
h67st replied to D2Denny's topic in Antique and Classic Mack Trucks General Discussion
To find my wheel seals, I went online and you can look at an SKF (CR) wheel seal catalog, they have dimensions in there so you can measure your old seal and match it up. Once you get the SKF number you can cross it over to whatever brand you want. -
Wikipedia says, "In 1940 the US Army ordered 700 Mack 4 x 4 truck tractors, intended to tow pontoon-carrying semi-trailers. 694 were delivered in 1941 and the last 6 in 1942. An Autocar design was standardized by the US Army and only 700 NJUs were built." Since this is a '41, it could be ex-WWII Army truck.
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Something you don't see every day. It's in Taylorsville KY, asking $5,500. https://www.facebook.com/marketplace/item/1748584945484045/?ref=search&referral_code=null&referral_story_type=post&tracking=browse_serp%3A412731f7-56c2-4202-a28c-8d7023db5614
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Can you tell because there's no tip turbine?
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🙃
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I'm with Joey...make sure both the air side and inside of the radiator are clean. He's got some good ideas about the water pump, tstat, etc.
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