Winter without a project?
- Thread starter GB SISSON
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GB SISSON
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I cranked it over this afternoon. I have solenoid on the firewall, made up some really good battery cables from junk I found around here, made an adjustable linkage from pedal assembly to carb. Scrounged an original choke cable that goes into the squared off hole in dash with a clip and terminates with a spring loaded end for the ball. After all this time it operates like a new cable without lubing it. I also installed a 1310 series U Joint at the rear of the two piece driveshaft. The tonner uses 3 of them and are a very common size. My Napa had 4 in stock yesterday. The 2 piece driveshaft assembly is sill sitting on the tailgate, so tomorrow I will crawl down under and bolt it up. Firing it up won't be a big thrill as I had it running on the stand a bunch of times. I have front brakes all re-done and that's enough for granny gear, just in case I have to go for as drive tomorrow. Driving it will be fun.... if all these used parts are as good as I thought they'd be!
51504bat
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tomcarman
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Being mechanically challenged I have no idea about driveshaft phasing. Can someone explain the reasoning why this must be followed?
Tom
51504bat
Well-known member
Balance issue as I understand it. All I know is that if its not phased properly there will be a noticeable vibration when driving.
tomcarman
Well-known member
Interesting. I'm curious why aligning the yokes would alleviate a balance issue. Given my knowledge of physics on the surface it would seem the furthest point from the center of rotation would cause the most imbalance due to centrifugal force. Hence, with all yokes aligned there would be more force
(X3 yokes) further away from the center of rotation thereby increasing an imbalance. I suppose with all three aligned as shown they work in harmony as opposed to working against each other? These Ford engineers were smart!
GB SISSON
Well-known member
I never pulled the splines apart on this driveline. I just found it leaning up as a unit in a corner of my shop. I will check that nobody ever set it up out of phase. Side note: When I put the diesel in my 47 tonner I had to shorten the front driveshaft by 4" because of the GM 4 speed. Driveshaft shops are relatively cheap.... But they are on the mainland .. Arghhhh. I cut the 4" out somewhere near the middle with my Chinese chopsaw. I then turned a maple dowel (like Momma's rolling pin) but 18" long, the exact size of the ID of the driveshaft. Hammer fit. To get a dowel so true on a hand wood lathe I built a plywood jig up on top with a flat table for my router to ride on. I roughed out the blank with a gouge like I would a table leg, then set up the router with a 3/4" straight cutter on the rails. As the lathe spun I ran the router over and over the top and acheived a nice tight dowel. I marked the center with a sharpie, drove it into one side. Pinned it with a screw, tapped the other side till the chopsaw cuts met, THEN phased the yokes with a good level and a straightedge and welded it all the way around. Yes the dowel is still in there. I clocked 66 mph on the interstate with my speedometer app on my phone. No vibes, and now it's been 2000 miles. I think the weld is like 7" linnear and shearing that would be tough. Besides, no drama, I'd just loose my forward motion as I coasted to a stop alongside the road.
V8COOPMAN
Well-known member
Well, not quite! Phasing really has nothing to do with balancing, as such. To understand the theory, one must first realize that any time a u-joint is at SOME angle (NOT in straight alignment), the drive shaft actually speeds-up and slows down four times per rotation. The greater the angle that the u-joint is deflected, the more pronounced the effect.
If both joints on a shaft are in phase, the slowing down and speeding-up should have an identical effect from EACH u-joint, making the function completely similar and complementary for BOTH joints. If the two u-joints are out of phase with each other, the two ends of the shaft will be trying to speed-up and slow down at different times in the cycle. That can only cause twisting and vibrating and all sorts of contortions going-on with the drive shaft in that situation.
In other words, EACH u-joint MUST speed-up and slow down at exactly the same time and rate. DD
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Correct DD, I learned that as I did 2 years of votech auto repair school in the early 70's and never used the degree, except for my home non sense. Now for fun, a poster on the hamb today spoke of two fellow workers that are from Giana (spelling?) an island, no parts available, very skilled at you fix what you got...period. I thought of GB right away .
tubman
Well-known member
Driveshaft phasing demonstrated : https://www.youtube.com/watch?v=Idk3BVDVHq4
51504bat
Well-known member
Thanks for the clarification. Never knew exactly why but when I worked as a mechanic at a local dairy in the '70's I was well aware of the result of an out of phase driveshaft in a Divco milk truck.
V8COOPMAN
Well-known member
Man, if that video doesn't clear-up what "phasing" is all about, there is no hope for ya! GREAT video!! DD
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GB SISSON
Well-known member
Yes, an excellent video! I am gonna start building one of those units right away and test it out with a handful of my wife's credit cards. Do you think skilsaw blades would work the same as sprockets? I don't have any sprockets, but dang do I have a lot of circular saw blades. 
GB SISSON
Well-known member
Got close to a startup or short drive this weekend, but shop was cold as heck and wife and I put a movie on and sat by the woodstove instead. Had a great afternoon and that old truck will still be there next weekend, and many more. I need to save some of this build for the 'roll out into the sun' days in the spring. My dad died in '79 of lung cancer at 52 years old. While he was still in ok shape I took a greyhound bus from Washington to Massachusetts to spend time with him. We talked a lot about our 'old days'. I remember a lot of them, but one thing that stands out a humorous is him talking about the 14 year old Me that would get a new (AMT/Revell) model car kit and I would set right about to assembling it and wouldn't go to sleep until it was fully complete. At 26 I remember thinking that nothing much had changed in the last 12 years. Now.... 42 years later .... hopeless case.
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sugarmaker
Well-known member
Gary,
Your dad told about you and the model kits, somewhat predicting your future.
I did the same thing. Would stay up half the night gluing and assembling plastic car kits also. Guess I am still doing that as I spent most of the evening in the shop working on the 32 truck. Just steel and a little bigger. Same kids playing with toys and continuing to learn!
Speaking of Dads. I used a trick to get the door hinge pin out that my Dad first told me about years before I ever tried it. Thought of him tonight when the pin moved with the air hammer vibration.
Keep up the good work! Yep it will be right where you left it!
Like you, I also spent some time with the wife and went out to one of those fancy restaurants, and used her money, to buy us a nice dinner!
Regards,
Chris
Your dad told about you and the model kits, somewhat predicting your future.
I did the same thing. Would stay up half the night gluing and assembling plastic car kits also. Guess I am still doing that as I spent most of the evening in the shop working on the 32 truck. Just steel and a little bigger. Same kids playing with toys and continuing to learn!
Speaking of Dads. I used a trick to get the door hinge pin out that my Dad first told me about years before I ever tried it. Thought of him tonight when the pin moved with the air hammer vibration.
Keep up the good work! Yep it will be right where you left it!
Like you, I also spent some time with the wife and went out to one of those fancy restaurants, and used her money, to buy us a nice dinner!
Regards,
Chris
GB SISSON
Well-known member
Yesterday I made some temporary support rods for the radiator from some conduit I found up in the rafters. While running the six on my stand for a couple buddies I blipped the throttle and sucked the radiator back into the fan. Yikes! The hoses seemed enough to star it (untilt they softened with the heat). Just cosmetic, no leaks, but I know myself well enough to know I will want to do a few shakedown runs before I install the front clip. This time I have brakes so shouldn't be ruining THIS new radiator crashing through my wife's henhouse yard. I have grown up a lot since that incident.
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petehoovie
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GB SISSON
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Her broom and mop handles are wood so I'm saving them for kingpin hones when working on the bigger trucks. The design and construction of these stay rods was directly influenced by the cross arms on the A shaped ends on my grandkid's swingset. I measured them eye to eye and they were a bit too short.
GB SISSON
Well-known member
My Wednesday night with the wife doing a 24 hour shift. It's 10:30 pm here and I drove the beater truck in and out of the shop a few times. I have an outboard motor tank sitting on some plywood in the bed. I am very happy with the 30' of driving I did tonight. Clutch smooth as butter. Idles nice and even. I plan to pull the pickup box next for access to rear brakes and chassis/spring work. I also found four jailbar truck 'under seat' gas tanks in my search today. 3 were easily fixable, but the last one I stumbled on was like new. Pics to follow.