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openspaceman

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Everything posted by openspaceman

  1. Thus writes a man that has never had thinnings stacked at roadside waiting for transport. Softwood that has been through a harvester head must be much worse. Now in general I find cordwood, which often is tops from bigger trees, doesn't season in the round but it does lose moisture and the moisture it loses is the cell water down to around 25-30% mc wwb. The remaining moisture is that which is bound to the cell walls and dries much slower.
  2. This is why in UK you must have a vented system with a 28mm vent pipe leading directly up to the F&E tank (okay not strictly true as some systems are allowed with pressurised thermal stores and system controls as well as pressure relief into a tundish). You could use a big battery and inverter to act as a UPS on the pump. Best read a bit of the UK building regulations Part J to set up a safe system even if you are elsewhere.
  3. It is seldom lack of lubrication that causes a seizure on the exhaust side, more usually a problem from the exhaust being too hot, mostly from weak mixture. When it nips up in this way the piston partially melts and some of the aluminium sticks to the bore. If you manage to start it again then the additional friction from this on top of the original mixture problem causes the final seize. The other problem about a weak mixture is it also causes the saw to over rev, all these things combined are just too much for the oil film and the sliding parts.
  4. Yes but on the heavily trafficked areas where they have had to joggle stones into position they prefer you to keep to that line. It just goes to show that conditions vary and no one rule suits all.
  5. Much the same I think about little used footpaths, rather than step on the vegetation either side people wear a muddy rut in the middle. Eventually coarser vegetation, bramble, gorse briar and nettles intrude from the side and the path becomes unusable. I try to manage a few paths locally so that people out walking can be side by side but it would help is others would stomp on vegetation and carry the obligatory secateurs. The lowland paths are a bit different from hill walks where it is best to keep to one line to avoid erosion.
  6. Isn't that for stacks of roundwood rather than cut and split firewood?
  7. openspaceman

    WTF

    I don't have a twitter account but is there any sound or indication of country. It looks like the saw jammed, she was handing a scrench for the guy to get the motor head away and somehow the holding rope had some give. Doesn't explain why the lady was up the ladder in casual clothes though.
  8. Not forgetting winter felled trees on average have a lower moisture content than actively growing trees.
  9. This is my experience with stacked cordwood too, it doesn't dry appreciably and the microbes stay active, respiring the volatiles in the wood to produce CO2 and H2O which keeps the moisture content high and of course lowers the calorific value. This is why I repeatedly advocate felling, cutting and splitting in quick succession,
  10. It is not something I have done but if it has just been left with the pot off I would expect to be able to flush any debris out of the bearings like you say but the issue is can it be done with that crankshaft still in the RHS casing? I would have no qualms about cleaning up the cylinder and using oven gel to dissolve off the aluminium pick up ( I spend days applying a little and leaving it, cleaning off, then re applying until no white marks appear, to show the aluminium is gone), then circumferential "honing" with wet and dry 150, as I do not have a hone.
  11. Top job then, let us know how it goes and good luck.
  12. It fits with those flower heads and if you ignore the abrasion mark the bark does look like the old stunted laburnum street trees locally, and it is a legume 🙂
  13. From the colour of wood I'd guess one of the legumes, crown looks a bit like cercis but not so much the bark, any leaves nearby?
  14. It's immaterial to me as I get it free and dry it for myself but commercially if you are buying it green the softwood has more water content, so beech and pine both weigh around 1tonne/m3. So if you buy by the tonne green and sell by the bulked m3 at 20% mc there's a fair difference in value as I am sure you know, the softwood is only worth around 2/3 that of the hardwood to the customer whereas if you sell by the tonne they are about the same.
  15. Yes , he has committed now so get on with it and make a good job of it, I hope it split easily with nothing damaged. On the few occasions I have split a saw I have always decided not to carry on but that one can hardly have any bottom end wear so a clean up, new seals and gasket and it should be good to go.
  16. All electric or with a low pressure pilot circuit? I looked into changing the controls on the Valmet 828 or 840 as the cards for the computer were getting scarce and it seemed swapping the valve block and joysticks for a complete electric set seemed to be the way to go, a good few thousand even then 10 years back. We never did it and as far as I know all three forwarders are sitting idle in the yard still.
  17. Mine too but it is the higher lignin content as well as resin
  18. I think it's a file for art students who use apple products so not viewable by oily rags like me
  19. If it really needs all those things doing I would probably give up. What made you decide the crankshaft bearings and seals needed doing and have you a splitter to separate the two halves? A picture of the bore and piston would be good to see, even if just taken through the exhaust port.
  20. But for the OP's sake can they be changed with the engine in situ? Over high oil level does point to unburned diesel running down the cylinder walls to the sump and if the alternator belt being tight affects the seal it will be because the bearing is worn too I suspect. In days of yore when crankshaft oil seals were not so good the crank had a spiral thread that acted as an Archimedes screw to push out back into the bearing.
  21. With all those knots from branches and old pruning wounds that is more suited to making some beams, sole plates and tie beams
  22. That's a McConnel bench isn't it? The FC had some for crosscutting pit props from long pine poles. Michael Richmond had one for cutting logs at home.

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