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openspaceman

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Everything posted by openspaceman

  1. Luv it and interesting too. I might try one on a chainsaw to see how much it actually works in a week.
  2. The metal tube is the gudgeon pin and as Dan says you need to prise out at least one circlip, stuff some clean rag around the conrod to prevent it pinging into the crankcase. Mike has suggested I try this: STIHL MS260 026 44 7 CYLINDER KIT NEW NISIC WITH TEFLON PISTON 1 YR WARRANTY and it seems cheap enough for a punt on an old saw that has already been repaired once. Time will tell after this weekend.
  3. what do you call tansy then? Or doesn't it grow that north? And on a related question how far south does bog myrtle grow in the wild, I miss it in our wet heaths.
  4. I think the term tansy ragwort is only used in america, here it refers to tanacetum vulgare
  5. Blimey how long did that take? That's my understanding and I suspect they nibble at it from boredom, like they chew tanalised posts and rails. It damages the liver in a similar way alcohol does mine, over time the scar tissue overwhelms the liver. Does this renaming also affect groundsel which I though was related? The poison in ragwor was known as sennecene. And I thought they were brightly coloured to warn birds and their poison was adapted from the ragwort they ate.
  6. That's it, and road verges, railways etc. often get sprayed off or have works that create bare patches for the seed to take hold. On good ground grass will out compete ragwort. I've nothing against pulling it but I suspect this can cause a strange effect on it's life cycle if any bits are left. It is a biennial so first year it establishes itself as a rosette close to the ground and probably below grazing height. Second year it sends up the flowing spike and distributes seed then I think the whole plant dies. If you prevent it flowering or leave a bit of root in the ground I was told it stayed in the rosette stage and then flowered the following year, I have never been able to substantiate this.
  7. We will have to differ on that. In sunny surrey many paddocks are horsesick and ragwort seeds take advanage of the bare ground. Mind once the weed takes hold it will thrive in any unmanaged land like verges and rail side. Is it still light by you?
  8. Possibly or maybe they were from across the pond where ragwort is apparently called tansy.
  9. It damages the liver over time but most animals avoid it, however it loses its taste as it dessicates so dried stuff gets eaten and does the damage. Horses can be susceptible because they are more likely to be put in paddocks that are over grazed. This gives the weed opportunity to invade and the lack of grass means the horses will eat it despite the bitter taste
  10. tansy is a different plant but easilly mistaken for ragwort.
  11. Yes he and Alan Cobb were the first people I sold to. I knew Tom since 74 when EFG stiil had a stake in forest thinnings
  12. Tom died a while back though his widow continues the business.
  13. Thanks for the confirmation Yes the bores are both the same and whilst I can only immediately find capacities for the later 44.7mm bore ms260 it's 50.2cc so the stroke should be 32mm . The fs360 is 51.7 so while the stroke is longer by 1mm the piston is 36.5mm against 32mm for the ms260
  14. Just as a follow up; although the Stihl pot and piston are available they cost £250 so I needed a cheaper solution. I was given the engine from a seized fs550 with the ring lands of the piston broken up and the nilasil damaged, it looked the same but a 46mm piston, so I ordered a cheap Taiwanese pot and piston for £70. It doesn't look good quality and is chromed rather than nikasil. When I assembled it the cylinder bolt patterns were slightly different so now I have rebuilt the 550 engine but with running gear and carb from the 360, it fires up OK. Now I have to search around for a 550 top cover as this is different to allow for the de-compressor and the black fairing for the tuning screws is different plust I need to block a superfluous hole under the choke, I shall try the stuff Stubby recently recommended sugru?
  15. I have just pulled apart a seized MS 260 and was surprised to find no markings on the cylinder casting, I thought genuine stuff always had Mahle and/or Stihl on them?? Also while the engine number showed it to be a later 44.7mm type the piston is 44mm. Any thoughts other than someone has previously fitted an afetrmarket pot? Also interested to see the piston is considerable shorter than the 44mm one from my FS360 but the gudgeon pins are the same.
  16. Easiest is to couple up to a tipping trailer, the engine shouldn't come under load when it's lowering. I have a short hose with a quickfit and pressure gauge to test pressures but I'm nowhere near Folkestone. You could disconnect the feed and return hoses at the fmv valve chest and test into a clean bucket, double acting and the oil will spurt out full pressure each way the spool is pulled, single acting and the return pressure will be nil or much less.
  17. How does brazing a band compare with welding one? I've never been confident about my own welding but was always amazed at how the bands on the 54" and 36" Stenner performed.
  18. This would make sense but in single acting I would expect the oil on the b line to dump to tank, it sounds like this is restricted in some way. Yes never take the oil from the tank line of a spool back to a service port of a spool valve, not only doe is heat the oil in the event the restriction is severe or the valve is shut the remote spool block will pressurise and can blow seals.
  19. I don't think there is a significant difference immediately on felling but cut lengths at stump or roadside could lose 2%+ a week and sour felled timber more in summer months. Bark stripped wood even more especially quick drying woods like syc and alder. Weight loss at roadside because of transport delays, especially with conifer industrial wood cost me tens of thousands over the years.
  20. why what is in the wood instead of sap? Consider how fast felled sycamore loses water in the summer.
  21. Said light-heartedly perhaps but I suspect most here are too young to remember paraquat; it was the choice killall before roundup and was a contact herbicide that killed the aerial parts of all plants. It was also tasteless and lethal with 5ml, one swig killed in 30 days with no antidote. Back then there were no plastic bottles, so tizer or lucozade were stoppered glass bottles used as drinks in the field. When empty they were ideal to bring some home for the garden, and kept in the shed. There were many children killed and many suicides before it was dyed blue, made bitter and an emetic added before finally being banned in the EU. It also became illegal to decant or store any pesticide in a non original container and all containers must have a label with manufacturers instructions.
  22. and not "drawn by a vehicle of which the kerbside weight is less than twice the sum of the unladen weight of the trailer and the weight of any load which the trailer is carrying." C&U reg 87b Which means the vehicle, full of fuel but otherwise unladen and without driver must weigh twice the unbraked trailer, so biggest trailer needs a vehicle with kerb weight of 1500kg.
  23. I use one of the gel oven cleaners, the reason being it leaves a telltale white mark where residue remains so applying a little and often to just these white areas gets the remains off. A chap from Greece trading as DLA has given me good service but be aware he sells non meteor parts too.
  24. If you clean the aluminium off the bore then I think it is unlikely to have suffered much damage. A new meteor piston ( but as per an earlier thread re use the original gudgeon pin circlips) £15 plus delivery but sawtroll pointed out there was a change from 44mm to 44.7 mm (after 1 62 154 675 I think. If you have the 44mm piston I'd like to compare it with the one from and fs360.
  25. Yes but I expect a good many of the pistons in the Stihl 40-48mm sizes have the same size gudgeon pin

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