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About WK-40

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  • Birthday 12/07/1985

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  • Location
    Kirwee, New Zealand
  • Interests
    1935 WD-40 x2 1936 WK-40, 1953 TD-24

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  1. Cheers Mike!!, certainly haven't forgotten!, just been a hectic couple of years worth of curve balls!. Starting to get some semblance of order. Bought a TD-24 in the meantime, built a shed for it, and got roped into restoring a wide front F-20 which is still on-going, a No. 31-T harvester, and a couple of later things which don't really matter! Shame I missed meeting you while you were at work recently! Cheers Gareth
  2. Eric appreciates the journey of a project!
  3. Has been some time between posts, as have been busy with other projects explained later. However, in between times, got the motor finished. Had a bit of a struggle with the cylinder head, as the gasket thickness, and the fire rings tolerance appears to be a bit of an art form, requiring the head to be installed and removed a number of times, and lapping/blue-ing the fire rings to seal nicely, relative to the gasket thickness. Anyhow, I got that sorted, lapped all the valves, of which the starting valves were a hard fix, and installed the head. Sifted through a selection of injectors and found a set, (including one NOS item!), and proceeded to lap the seats, and then reset the crack pressure. Installed those and then sifted through the spare injection pumps for the oldest S/N pump of the lot. It had no rotating assembly, and was full of bird droppings from a few haircuts worth of sitting in an open shed. Referring to the parts book, I was able to make up a period correct pump out of the spares. Also had to build up the pump coupling, as you 35/40 guys will know the struggle there! Bolted everything else up to complete the engine, after stripping the water pump and reconditioning amongst other things, and managing to squash my Copperkote container with the flywheel!. Its a bit heavier than the stuff nowadays. Onto building the gearbox at present, with all new bearings, but thats a story for another time
  4. Thanks mate!!! They've certainly got a timeless style and feeling. Though I'm about half a century late, i still think ya can't beat working one hard in a field on a good day!
  5. Well, I've been pretty busy at work of late, but today I had a good chance to have a run at it. Partway through the morning, realised that since the motor was pulled apart in Wanaka some 30 years ago, it's missing the No.3 main cap. So I got one out of a spare motor (which was 20 odd blocks later or so), and the cap has a smaller internal diameter!!! So now have to look through our spares and go from there. I just don't understand how the main journal diameter can be smaller on a later block, which technically should accept the later brand new std main bearings we have, which suit a later crank!! Yet the early block does!
  6. If it is an open station tractor pull the banjo fittings out of the bottom of both sides of the fuel tank, theyre probably blocked.
  7. Thanks Sledgehammer! We're suckers for punishment down here but we've got a soft spot for these old Deerings. Have selected 4 suitable pistons out of the spares to use for the motor, but have been too busy at work to take whole lot to machinist. Boss bought a 6 Speed Special which has also kept me busy the last couple days
  8. For those wondering how I got the pistons out, Heated each piston up (not excessively) just enough to allow them to expand), and let them cool over night. then.... Quite a cool piston design. Two piece, with a threaded steel crown fasted with a nut through an alloy skirt. Whipped some sleeves out of a spare TD-35 block, Early TD35 sleeves are the same outer size as 40s, with a 1/4 inch smaller bore. These will be machined to accept the WD-40 pistons. Later TD-35s have a stepped sleeve which is narrower everywhere except where it locates, which, though I'm not certain, would be too thin for longevity.
  9. Fitted the new mains and unwrapped and test fitted the brand new, never been used crank today. Was uncertain about the thrust washer as there were a few changes in production according to the parts manual. New bearings are for a later vertical injection model, which suits the crank, however the block casting is slightly too thick, so will have to relieve the casting in this area to accomodate,
  10. G' day Mike!, It's certainly a fair old challenge and I appreciate the heads up about parts!! There are a couple bits I'll need if you had and were willing to sell, is your tractor a vertical injection model? Much appreciated Gareth
  11. Got stuck in and whipped the crank out of her, No shortage of steel in her
  12. Making a start on pieceing together one of the oldest known WD-40s in this part of the world. Will be a bit more ambitious than previous projects, Finished S/N:909 late last year which was restored some 20 years ago (i was 10) and then disassembled soon after to properly freshen the engine. Due to unforeseen circumstances it wasn't until last november it saw the light of day again, as a mate to the WK So, 779 in its current state... And the block, which has until recently been seized for a large number of years
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