1941 B project... PICTURES added finally!

Just reading back through the thread & thinking on some things, how was the alcohol carb set up? Any photographs?

Also would be interested if anyone has photos of the manifold/carb setup on an original K suffix machine.  The way mine is set up I don't believe it could be original because there's no vaporiser assembly & even if it could run Kero' through the carb it's surely need a WIDELY adjustable main jet.  

And that's the other thing, the carburetor on the tractor has a fixed main jet with just a bung where the adjusting screw would be found.  Will try and pull the number off the carb shortly but I seem to recall it does come back as one originally fitted according to the manual I have.

Cheers, Dan

Just waiting on a pipe plug to fill the original outlet (it has a petcock already on an extra fitting that was brazed in for some reason years ago). If it holds fuel though I'll likely buy one of the cheap aftermarket petcock/sediment bowl assemblies as they just look way nicer & function far better for the purposes of running crusty old tanks.  Oh, and finalised the alternator mounting too so I can run the electric fan & add in an electric water pump in the near future if thermosiphon won't cut it. (Holds below boiling at fast idle, but might need more flow when it gets under load.)

Will grab more photos or videos as things progress, but we're getting to the stage where she'll be able to run/drive for longer than a few minutes at a time.  

Depending on how much crud comes out/how often I plug the sediment bowl inlet I may also add in an inch or so of plastic airline as a standpipe in the inlet to the bowl so I'm drawing fuel slightly higher up.  I've flushed the tank out as much as I can with some waste diesel fuel but there's bound to be plenty of residue still.

Cheers, Dan

EDIT- while I'm here & thinking of it, what size compression nuts are the head/governor oil lines? Mine came without any of the original but I have some copper line that may be good, just need to confirm the thread sizes.

Thank you.

Can't wait to see where this tractor ends up when you're done with it!

Ever thought of using some newspaper to shim the mains, plastigage to check the clearance?

Be careful of the newspaper you use, though!  (for the Punch line, PM me...)

Damn weather keeping me indoors now though, nearly 60 degrees with a warm Southerly wind but keeps dumping the sort of fine rain that you don't really notice until you're already soaked. May try and play with the water pump at some point since it don't matter if that gets wet!

Firstly, thanks to Steve for the links over in this thread http://https://www.allischalmers.com/FORUM/model-b-carburetor_topic159844.html

The numbers quoted there tell me that the carb I'm running is most likely the 61 AJ 7 designated unit (so standard US market fare, cast iron not the 24T2 alu' one on English B's) and the jetting/choke are set up as per the gasoline models so that's a good start.

Where I left off on another thread (because I'm messy) is I'd diagnosed the carb as having issues with the original gaskets no longer sealing properly, big surprise there, not!  Also managed to break the emulsion tube (main discharge jet) in half by overtightening it during a brainfart moment.

Anyways, carb kit arrived and I rebuilt the carb with the emulsion tube soldered together & she ran the best she's ever ran. So much so that I decided it's time she did something worthwhile at last other than sitting in the front yard looking cool 

So, she was duly loaded up and taken out to a patch of land we're working to do some hauling wood, scraping overgrowth off of paths & other general duties that were otherwise beating seven bells out of a pair of old lawn tractors.

Finally managed to do a bit of a walkaround video showing the angle iron rim repair & the other redneckery in all it's glory-: http://https://www.youtube.com/watch?v=DE7_VL1vbas

She ran great for a good couple of hours, electric water pump and fan keeping things cool under load & all the hackery is hanging together pretty good. Had a couple of snags like the valve cover gasket came out of place and made a smoke show on the manifold (at least show's she's oiling through the homebrew rocker setup decently!) and the tires are definitely not long for this world since the "good" side now has a huge split with broken cords pushing out so had to drop the pressure to a couple psi to avoid any explosive inner tube hernia situation.

Main issue now though, is the damned emulsion tube repair failed again. I can't get it to tighten enough to seal on it's washer, so a replacement is needed. The emulsion tube I need is marked 45-2 if anyone has one they'd sell?  If I had a lathe I'd make myself a replacement just to keep it "on theme"!

Will place a wanted ad in the appropriate forum as postage isn't likely to be so stupid for such a small item, hopefully don't have too many messages from new members whose "friend" just happens to have what I need in a good conditions if I'd just email them at randomscammer@email.bum 

All for now folks, she's getting there bit by bit!

https://youtu.be/Hb9F2DT8iEQ?si=nf9Baucmp5fDVE52