Afternoon All,
I picked up a 1964 C60 last week (292 4+2) and have been working on it ever since. I am new to this era, and have spent a lot of time here reading and digging up info. But, I didnt find answers to all my questions and wanted to post them up here.
Last weekend I got the old 292 tuned up a bit and the 2 speed axle shifting properly again mostly. I can hi-low split shift up until 4th, and she doesn’t like/wont shift into 4 low. Just grinds away until brought to a stop. She split shifts all other gears perfectly though, BUT, the axle wont drop into gear without the clutch.
So; Clutch in -> Shift to first -> actuate 1st low -> clutch out -> reach speed -> actuate 1st high -> clutch in -> count 2, clutch out. Repeat through all other gears. Without the clutch, rear axle wont drop into gear. Its my understanding that hi-lo shift shouldn’t require clutch. I’m wondering if I’m not pulling strong enough vacuum in the line. Or maybe the axle diaphragm is worn? Or maybe im just overzelous on the gas. Also, I cant downshift trans to 1st at all. She just grinds horribly Wont allow 1st gear trans shift unless stationary or <4mph. I’m assume thats a synchro problem in the trans however.
I am currently tracing electrical problems. Ignition works fine, but nothing else electrical works. There is a secondary power switch next to the PTO controls. A translucent red light up 'pull out push in' switch. I cannot for the life of me determine what it is/does but it looks to be factory and wired from the factory, but it isnt shown in the witinf diagrams of the shop manual. Any idea? I can get a picture to help.
Other than the PTO control wires being fused and inoperable, the PTO and rams still work beautifully with the manual control on the frame. I didn’t expect a dual piston setup and was very happy when I saw that. Question though, the rams are very loose on the pivot points on either end. Like, hot dog down a hallway loose. Is there supposed to be a bushing between the ram and the shaft it pushes against?
Also out of curiosity, the GVW on the door states 19,500 lbs and research shows me that dry the girl should weight around 9500 lbs, so technically is this truck then a 5 ton? I was under the assumption that the C60 family was all 2.5 ton trucks, but this GVW shows me at double that, on a single dual axle as well.
I have to bleed the brakes once the new line is in, but have never bled brakes on a vehicle this old with hydro-vac and no ABS. I purchased the 1964 shop manual only to find that it is an augmentation to the ‘63 manual which covers brakes. The '63 manual is on order but still a week or so out, so what is the process to bleed the system on these older trucks? I have heard it different from everywhere I've researched.
The only other thing I know I have to do is wheels. All 6 are widow makers, and part of the reason I talked the price down so low. I don’t even plan on adding air to these beasts and am hesitant to even remove them from the axles. Rubber looks good enough, so ill drive on them until I source some proper ring split wheels to replace with. I figure when I park her this coming summer for a proper rebuild is when I’ll do the wheels as well.
My goal is to run her all winter logging season this year and then park her in the late spring for a month or two and do a complete overhaul. Pull the cab and get down to bare frame and clean, grind, and recoat every surface with POR15, redo the kingpins, replace wheel bearings and carrier bearing, replace a multitude of other parts, and fully rewire, re-brake, as well as repaint and possibly repower (discussion for another time).
There is very little info on any of this on the net, so from personal experience, does anyone have any suggestions? Again, I want to thank everyone so far for all that I’ve learned in the past two weeks here just reading. Old Iron is beautiful and just not that common anymore, so I’d love for her to continue running the roads for a long time, thus I don’t mind a bit of investment. She’ll make me plenty of money so im willing to put some into her. Plus, its fun, I like wrenching, and the wife actually likes this project because "that truck is beautiful."
Thanks all.
Last edited by 69Cuda; 11/19/2019 7:05 AM. Reason: wording
