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| snow Tandem |
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| Joe d:
Thanks, mad jack. Well, except for the filler cap :bang: , fuel tank is done :ddb: Set up some steel rod in a collet for threading each end 0-80 for u-bolts glued the bosses in place, the other end of the tank, a bit of cleaning up and assembly, and here we are! From the other side: next up: coolant resevoir Cheers Joe |
| Dean W:
It sure looks great, Joe. Gets prettier every post! Dean |
| Joe d:
Thanks Dean Dove in and made a few mods :mmr: to the stand that holds up the tank, as I just didn't like the look of the original :( Here's the fuel tank with the MkII stand from another angle Like this one better... Cheers, Joe |
| Joe d:
Got on with the coolant tank after re-working the fuel tank stand. Started out by truing up some 3" OD ali tube, and then cleaning up the exterior A straightforward bit of turning and boring for the top Set up the stock for the base on the rotary table to mill the recess that the tank body sits in Then used the base-plate as it's own template for locating the mounting holes on the wooden base Made up the inlet and outlet fittings, a replay of the bits for the fuel tank, so no photo of that, and then stuck it all together with some more two-part epoxy (with my carefully hoarded chunks of cast iron weighing things down while the epoxy sets up) And here it is where it belongs. Getting close to the finish line now, only got the coolant pump, cams, carb, and a few oilers left to machine, and then its assembly and start figuring out why it won't run..... :scratch: :scratch: Cheers, Joe |
| Joe d:
Hi all Got started on the coolant pump. The plans called for using a submersible electric pump in the reservoir, didn't much care for that, so after asking a few questions decided to go with Jerry Howell's magnetic drive pump. Of course, I can't just follow the plans, so there have been a few modifications already... :) I didn't have an appropriate piece of round stock, so soldered a temporary spigot on a chunk of my secret stash of 1/2" plate brass, and then turned the spigot so it would run true Turned it round, reversed it in the chuck and machined off the spigot in the process of hollowing out the piece, then silver brazed it to a piece of flat stock.. (and, if you look closely, just behind the firebrick you can see the first one, stuffed it up drilling the bolt circle... :hammer:.) Jerry's plans call for a delrin piece threaded into the brass body to hold the impeller in place. I still don't have a thread-cutting lathe, so left the hole in the pump body un-threaded, will also not thread the delrin insert, and will hold it together with this clamping ring Next up is the impeller, turned the blank with a shoulder on the bottom to facilitate holding it on the rotary table with a strap of spare ali, off-set it to mill the slots, re-centred and drilled the holes for the magnets, after this re-chucked it in the lathe and turned off the shoulder and here is the delrin piece ready for parting off. First time I've machined this stuff, boy it sure cuts easily with a nice finish. Nice soft non-cut-causing swarf, too :clap: Made the pulley for the thing, and then added it to the pile of parts that don't fit, so next up will be another one.... and inlet & outlet bits. Cheers, Joe |
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