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dfwallis
Silver Level Joined: 09 Mar 2023 Location: DFW Points: 330 |
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Posted: 25 Jan 2024 at 3:14pm |
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My first draft of the hydraulic return for a CA. I will first attempt return via filler cap as in below. If that doesn't work well, I have a better idea, but I think this will be ok if the flow is sufficient. Since the pump will be pulling out as fast as it's going back in, I don't anticipate problems, but I'll find out I guess. It's likely I'll have to reduce the size of the brass nut a little, but that's pretty easy. I may also need an o-ring. I had to bore the hole in the stainless fitting out to 3/8 inch (my poor drill bits). It was a 3/8 inch fitting with a 1/4" hole :( Was designed for super high pressure but not needed on the return line.
Edited by dfwallis - 25 Jan 2024 at 3:15pm |
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CA13092
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1955CA
Silver Level Joined: 10 Sep 2018 Location: Ontario, Canada Points: 496 |
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Wow! Nice!
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dfwallis
Silver Level Joined: 09 Mar 2023 Location: DFW Points: 330 |
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The bottom (pintle mount) section will be bolted to the fender wall. I haven't drilled those holes (in the pintle bracket) yet so I can determine the best position. I measured it and know very close where the holes will go but I made the bracket a little longer in case I need to adjust it right or left. The top section is the removable part via the hitch pin. I'm trying not to physically modify the tractor, just using existing bolt patterns as much as possible. The threaded rod is designed to allow the tray to slide left or right (it is then tightened in that left or right position). I was thinking ahead to deconflict it with my idea for a roll bar/canopy mount that mounts to the axle but will rise just outside the fender wall (so the wheels will have to be slightly spun out). When that roll bar/canopy is installed, the tray will have to be slid right/forward to deconflict (since it sticks out over the tire). The pintle hitch is mounted to a piece of 4 inch x 4 inch angle iron that I cut out the left and right floor sections. The right section had to be cut to deconflict with the brake lever. The left side was only cut for symmetry. The forward fender bolt is around 4 inches from hole to back of brake lever. The other fender bolt is 11 inches behind the forward fender bolt. I have about an inch of play to adjust the position to deconflict with the brake lever and the seat. The console is fairly well balanced. There is little stress on the mount when you operate the spool levers which have quite strong springs. That was one worry with only having two mounting bolts. I can add a horizontal support later if needed. |
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steve(ill)
Orange Level Access Joined: 11 Sep 2009 Location: illinois Points: 77648 |
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so the vertical hitch is just a way to mount it to the tractor , so you can easily remove it when not needed ? .... Instead of bolts ? .... I see the threaded rod which allows you to adjust it in that direction.
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Like them all, but love the "B"s.
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dfwallis
Silver Level Joined: 09 Mar 2023 Location: DFW Points: 330 |
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Progress 10/30/2023: Designing a removable hydraulic console intended to bolt to the left side fender. The console consists of a pintle hitch, and a hitch extender mounted vertically with a custom tray resting on top of the extension which is removable. Two single acting valves mount to the side, a 4 spool valve set on the top. It sticks out over the tractor tire for space reasons. It may or may not fit exactly where I designed it to sit (may be too close to the seat), but I can move it forward or backward if needed. The tray itself is designed to slide left or right. I still have some plumbing work to go for the return. Perhaps a little goofy, but fun anyway (I'm retired, I got time) :) It weighs a ton... The back view showing the mechanism for sliding the tray left or right. It includes optional hose supports that can be added or removed when the dual acting spool valves on top are used. Closeup of a hose support. Since the dual acting valve hoses will come off straight up, this supports them at about 16 inches (can be lowered) to prevent sharp bends. |
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1955CA
Silver Level Joined: 10 Sep 2018 Location: Ontario, Canada Points: 496 |
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Awesome! I'll be watching for your future updates. You might teach me a few tricks to do to my CA.
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dfwallis
Silver Level Joined: 09 Mar 2023 Location: DFW Points: 330 |
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I just posted updates a few days ago. It's not back together yet but mostly finished the engine rebuild internals. I'm working on some hydraulic system mods at the moment. I'm creating a pedestal out of a trailer pintle hitch and a hitch extension to get me the required height above the tires. I've got the base complete except for painting. I'll start on the platform for mounting the spools tomorrow when a connector arrives and i can determine the width of the side by side spool sets/valves. I don't expect any significant progress before the spring. I hate working in the cold :(
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1955CA
Silver Level Joined: 10 Sep 2018 Location: Ontario, Canada Points: 496 |
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Any update pics DFWallis? That looks wicked with the big tires. I just went stock size on my rear replacements. Can't wait to see it all put back together after you had the body parts painted.
I just came in from my morning fall ride on mine. Took the dog for a walk, so figured I'd give Allis a run too.
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dfwallis
Silver Level Joined: 09 Mar 2023 Location: DFW Points: 330 |
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Offsetting was sometimes used in small engines when no valve rotation device was present to achieve rotation. Offsetting is not supposed to be needed with a valve rotation device. It certainly should not be so far off that it's barely contacting the valve stem and leaving giant divots because of force being limited to a tiny contact area.
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JK in Pa
Bronze Level Joined: 12 Sep 2009 Location: Dushore, Pa. Points: 159 |
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I believe I see valve rotators on the exhaust valves. I always thought valve rotators required offset rockers.
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dfwallis
Silver Level Joined: 09 Mar 2023 Location: DFW Points: 330 |
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10/16/2023 Update: Further engine work. Engine rebuild internals complete. Everything to spec except liner protrusion. Two slightly exceed the 0.005 max with light torque, but improve when fully torqued. Basically, they don't sit perfectly flat with the block surface. Pretty sure it will be fine.
A better view of the improved rocker arm alignment. This is a massive improvement of horizontal alignment. Some were in contact with less than half of the valve stem previously. It's actually better than it looks in this pic due to parallax. Edited by dfwallis - 16 Oct 2023 at 11:29am |
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dfwallis
Silver Level Joined: 09 Mar 2023 Location: DFW Points: 330 |
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3 coats of primer and 3 coats of orange. 4 and more coats of primer or orange in strategic areas.
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ACinSC
Orange Level Joined: 16 Dec 2015 Location: South Carolina Points: 2516 |
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Looking good! Thanks for sharing
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IBWD MIke
Orange Level Joined: 08 Apr 2012 Location: Newton Ia. Points: 3436 |
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That paint is looking pretty spiffy!
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dfwallis
Silver Level Joined: 09 Mar 2023 Location: DFW Points: 330 |
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Progress pics 9/24/2023:
While engine block was out to the machine shop, I prepared the front half. Sheet metal was taken to a body shop for some rip and dent repairs. Installed a new throwout bearing although the old one wasnt really very bad. Clutch plate was relatively new. Also ran a new wiring harness. Since the engine work is taking a little longer, I stored the parts along the roofline by the H. I cleaned and painted EVERYTHING. New bolts and studs where needed. Crankshaft had some minor pitting but overall wasnt that bad. Machined everywhere needed. Had too much end play when we got it back so we sent it back out for more work. Originally, the machine shop documented the wrong specs on the work tag so we ordered the wrong bearings and had to do that over as well. Those issues were the source of most of the delay in getting the engine going. I had high hopes, but it didn't happen. Work is ongoing as time permits. No the M doesn't run either :( After I got most of the front half ready for the engine install (minus sheet metal), I replaced the brake pads. This is the "good" one. The left one was rusted in two at the hinge. Kind of a chore to get all the rat and mud dauber nests out through those cubby holes. Must have pulled 2 gallons of junk out of there. The drums should probably be worked on but I think they'll be fine besides wearing the pads out a little faster. There was plenty of metal left. Probably because it hasn't had properly adjusted brakes since the 60s (i.e. little contact). I was able to get the plow up out of the dirt and on some temporary blocks (I ran out of time and just used whatever I could find). The frame looks like it will clean up ok. The plowshare/moldboards are broken. The pieces seem to be lying around in the garage, could probably be welded up (or replaced). Here's the cultivator previously mentioned as having a tree growing around it. That will be fun to remove. And the disk. Didn't get a picture of the planter (forgot when I decided to de-tree the bulldozer). Edited by dfwallis - 24 Sep 2023 at 7:25pm |
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dfwallis
Silver Level Joined: 09 Mar 2023 Location: DFW Points: 330 |
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Already bought one of your rebuilt switches. Generator was toast, being completely rebuilt and converted to regulator style operation. Starter was in very good condition, but I opted to have him recondition it as well. Fort Worth Starter and Generator. I'll be doing the new wiring harness myself. Already have it.
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Steve in NJ
Orange Level Access Joined: 12 Sep 2009 Location: Andover, NJ Points: 11538 |
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if you need a new wiring system for that project, visit our website. We do everything electrical and touch on each area of the Tractor. I do Carb, Generator, Alternator, 3 position switch and Starter rebuilding. Be happy to help you out with anything.... Steve@B&B bb-customcircuits.com
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39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife
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dfwallis
Silver Level Joined: 09 Mar 2023 Location: DFW Points: 330 |
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Got a fairly good look at the engine block. The block was welded in several spots 50 years ago. Looks pristine, welds held, finished flat, good head gasket seals. I think it's going to be ok.
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dfwallis
Silver Level Joined: 09 Mar 2023 Location: DFW Points: 330 |
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It's 6 volt. Plan to keep it that way. The regulator was mounted just behind the starter motor. I don't remember it at all, so maybe my uncle added it in the 70s.
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dfwallis
Silver Level Joined: 09 Mar 2023 Location: DFW Points: 330 |
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I found front and rear cultivators, disc, plow, and planter. The cultivators are in the worst shape probably. Lots of trees growing through it. One of the sweeps is exactly in the middle of a 1.5 foot diameter scotch pine tree at ground level. It seems to be sideways. Couldnt see enough to see if its twisted or just on its side. It didn't quite logically compute.
Edited by dfwallis - 29 May 2023 at 2:00pm |
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steve(ill)
Orange Level Access Joined: 11 Sep 2009 Location: illinois Points: 77648 |
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the original battery was 6 volt and just had a CUT OUT SWITCH box mounted to the generator.. No voltage regulator.. The LIGHT SWITCH had a resistor on it that grounded the "F" wire from the generator to give a low amp charge.. When the switch was ON, the "F" was grounded around the resistor to get a GOOD GROUND and MORE AMP charge..
It was not uncommon to remove the light switch and put a 6 volt regulator near the generator and let it do the job.... If the battery was changed to 12v, then yes, you need a regulator to handle the job. Edited by steve(ill) - 29 May 2023 at 9:03am |
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Like them all, but love the "B"s.
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IBWD MIke
Orange Level Joined: 08 Apr 2012 Location: Newton Ia. Points: 3436 |
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Looks good! I need to get to work on both of my CA's.
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wjohn
Orange Level Joined: 19 Jan 2010 Location: KS Points: 1794 |
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Looks like good progress. Are the cultivators still hanging around somewhere?
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1939 B, 1940 B, 1941 WC, 1951 WD, 1952 CA, 1956 WD-45
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dfwallis
Silver Level Joined: 09 Mar 2023 Location: DFW Points: 330 |
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I should have repacked the front bearings. One was fine but the other had slight end play. They both rotate smoothly. Was running out of time this trip. Needed to get some other things in besides the tractor. I painted the backside of the fenders to retard rust, but they'll need some straightening work at some point. They seem salvageable with only straightening required as far as I've seen so far.
Edited by dfwallis - 28 May 2023 at 9:20pm |
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dfwallis
Silver Level Joined: 09 Mar 2023 Location: DFW Points: 330 |
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Some selected progress pics. New front and rear tires. New 12 inch rims on back with 13.6 Titans. New tires on front. Rims and front pedestal were sand blasted as was rear hubs and final drive near the wheels. One front rim was welded by dad in the mid 1960s. It's amazing that there's been almost no major deterioration since then. Only a few tiny pin holes near the original welds. The rear hubs and locks cleaned up very nicely. Only one of the lock bearing surfaces was slightly pock marked. All were very usable. All reassembled with anti-seize lube. The locks locked up tight. I was amazed how smoothly they operated. I stumbled upon the lock/lug wrench in the garage, and also the associated 5/8 inch lever bar. I painted them orange so I can remember them :) Everything was sand blasted primed and painted. Some key areas like inside the front rims have approximately 10 coats rust reformer and of paint in total. The inside of the front rims were a bit flakey (rust) but with angle grinder, wire brush, and sand blaster, they came out decent and smooth. Tire guy had no qualms with them. I may eventually replace the front rims, or maybe just the welded one which doesn't look as nice. The tractor has been moved to a garage for engine assessment. It will get rebuilt regardless, but there may need to be a section of the block re-welded. Dad welded it in the early 70's (or thereabouts) but did not have the right welding equipment on-site at the time so it continued to have a slow coolant leak. Believe the weld is intact though. The starter motor was removed for unknown reason, but I tested it and it is fine with not a single issue with the gear teeth or throwout. Was inside the garage for 40 years. The original generator is another story. Was in pieces with coils toasted and loose. Believe I can get it rewound locally. I inspected part of the flywheel which seems fine where I could view. I think the transmission is ok but could only get it into reverse for the trailer ride. One brake seems functional, sort of, the other seems to be rubbing full time but not forcefully and the pedal won't depress beyond an inch or so. I can see a broken spring which may be wedged in the way. Steering play seems no worse than I remember it. I remember that the front rim welds were heavy enough to cause a little wobble at full speed. I found the ammeter and control panel. The control panel cleaned up nicely, but all switches and ammeter were toast so I'll be rebuilding that, cleaning up the starter (maybe more if needed), and the generator if I can. I'll probably use stainless fasteners in key exposed places. Nearly all electrical wiring seems haphazard. It seems to have had a regulator installed at some point, but no reference in my service manual so I'll have to research that further. |
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dfwallis
Silver Level Joined: 09 Mar 2023 Location: DFW Points: 330 |
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Baby steps...new 13.6 tires on 12 inch rims :)Probably not much more activity before May.
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steve(ill)
Orange Level Access Joined: 11 Sep 2009 Location: illinois Points: 77648 |
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i dont know how your trying to ROTATE the motor ( bar/ crank).... but one good method is to jack on of the rear tires 2 inches off the ground and block under the drawbar or axle housing... put the transmission in gear, then try to ROCK the tire back and forth every couple days ( with the cylinders filled full of penetrant).
make sure when in Neutral that the tire will move.. That tells you the transmission is not locked up also.. Edited by steve(ill) - 26 Mar 2023 at 9:05pm |
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Like them all, but love the "B"s.
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dfwallis
Silver Level Joined: 09 Mar 2023 Location: DFW Points: 330 |
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De-brushed...baby steps. Several days soaking in atf, still locked tite. |
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steve(ill)
Orange Level Access Joined: 11 Sep 2009 Location: illinois Points: 77648 |
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yea... a added a drawing above that might be even easier.. use the BAR on the tractor to help limit movement fore- aft.
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Like them all, but love the "B"s.
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dfwallis
Silver Level Joined: 09 Mar 2023 Location: DFW Points: 330 |
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Yes. A slightly better design might be an add-on bracket that sandwiches the snap coupler tongue (top bracket and bottom bracket, with perhaps loose fitting bolts, one right in the inside circular bend of the tongue, one at the rear. Then the pin sleeve would be welded onto either bracket. That would preserve the integrity of the tongue as well. Being loose fitting, it could give you enough range of motion at least side to side.
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