openspaceman

I'd never seen beneath the top cover of the 261 before, just had the exhaust off to verify a seizure. It took me considerably more than an hour and I didn't have tools to remove the carb but the flexi induction manifold has enough give to remove the three torx screws and separate the cylinder. I still cannot figure the reason it seized but I am also used to employees being economical with the truth. I was trying to work out the economics of repairing a 2 year old saw that retails at £500. Using new OEM parts at a Stihl dealers I judge it not worthwhile. Cleaning the bore and piston and replacing the rings: we'll see...

Could anyone say how much workshop time would the book say it took to swap a pot and piston on an ms261?

They were all clever but I meant professor rather than repeat surgeon. Still as a little french bird sang Non, rien de rien...

Indeed, you ran the experiment and gathered the evidence, I merely gave my interpretation which fitted your empirical result.

I wish, then maybe I would have got a proper job and retired at 50 like my contemporaries who were surgeons, civil engineers and surgeons

I understand that but I was asking about the presta conversion, this is using the valve as used on "racing bicylces" of my youth because of the negligible back pressure. As I said I'll try and pressurise the crankcase using blanking plate and a seeley coolant leak tester.

Perhaps I didn't explain well enough. The radio waves travel though air because it does not markedly absorb them, hence they arrive at the antenna where they are absorbed and turned into electrical energy in the receiver. They cannot travel through water because as soon as they hit the water the water molecules absorb them and they raise the temperature by a minuscule amount as they are turned to heat. In much the same way if you have a red light and you are looking at it from behind a sheet of glass you see the red light because the glass is transparent to red light. Change the glass to green glass and no red light gets through the glass because green glass absorbs red light so the photons never get to your eye.

I've had my one out to play and yes it is the Gunson Hi Guage, so it's just a matter of taking the schrader out and putting the presta (aka high pressure bike valve) in with a converter?

Not too surprising in that a microwave cooker works at about 2.4GHz in order that the water absorbs it at that frequency and heats up.

I was thinking of using the seeley radiator pressure tester, clamp over the exhaust and use the balloon thingy to seal the carb inlet, then look for pressure drop. My thinking was that modern saws can never be leaned out on the car adjustments nowadays so there's either an air leak or a restriction in the fuel feed somewhere. This is why I have only lashed out 10 quid on a set of rings, rather than replace pot and piston, until I find the cause of the problem

Spent the afternnon sniifling and coughing watching John Wayne but I'd like to raise you Mcabe and Mrs Miller

I was using that camera as a dash cam, worked well and recorded my journey in daylight for 2 hours but would not sense movement and switch on at night. then I knocked the usb cable and broke the surface mount socket and there is no way I can repair that.

Is this the standard car thing? I've a lightly seized ms261 which I think was running weak so I could do with a few pointers to preeurising the engine to hunt for leaks.

I run hot water through wood ash in a piece of kitchen towel and use the liquid if I have no oven cleaner to avoid the risk of grit scratching the glass

How many temperature probes did the retort have?

The thing about birch in the round is the bark is very oily and waterproof, there is enough water in the wood, which is very perishable, to allow fungi to rot the wood inside the bark. This is why we had to stripe the bark of birch poles which couldn't be extracted till late summer. Split and stacked bark uppermost and it should be out of danger in a few summer weeks.

The proper BT/openreach ones, "jellies", were single entry for each wire and then the pliers drove the connector through the insulation and made the joint. They are filled with silicone grease to weatherproof them. Strain was kept off the joint with a wrap guy lashing wound around the wire and attached to the house. I still have a few left from the box I was handed in 87.

This Prinz.at: ERG debarker attachment seems to have evolved from the original which was a planer head with normal blades driven by a vee belt used to clean out cavities in the day.

This is a how long is a piece of string question. You can make a low temperature char at 400C which can have 45% of the dry matter yield in a high lignin feedstock but much of the content is higher tars rather than fixed carbon. Fixed carbon is checked by raising the sample in an inert atmosphere to 900C and will be about 15% of the dry matter. Where indigenous peoples use char for cooking, often in towns indoors, they will prefer a high temperature char that just glows. In UK for barbecues people accept a high volatiles char that would be too acrid indoors because they want easy lighting. The carbon in char starts to change state at about 450C as its bonds change to graphite like structures which are more recalcitrant. Retort char is always likely to be non homogeneous because of the difficulty of transferring heat from the heat source through the wall to evenly heat the interior so it will tend to the lower end of the range. Also bear in mid a steel sheet will stand a temperature of 700C on one side if the other side is in ambient air being cooled but in a retort if you have 700C on the ouside and 450C on the inside...

I used to see a lot in the 70s in South Wales where the FC were trying to establish plantations, I assumed it was a reaction from sheep keepers wanting to maintain grazing. Maintaining grazing by winter burning off heather was a management tool here in the SE that has been abandoned, this results in heavier stands of heather and gorse which coupled with dead grass drying out in the spring make a much higher fuel load, hence the fires runaway.

The confusion between fuelwood and 4 seasons has been cleared up but the trekkasaw was developed by the late Paul Elson. The company that developed it closed and their salesman formed fuelwood. The 4seasons kiln looks like it spawned from the webster retort which itself was a copy of a south african one. Back to the main subject: stainless resists corrosion by forming a layer of chrome oxide which then protects the iron. In the absence of air the oxide layer degrades and thus ss isn't much use in the reducing atmosphere of a retort. Corten steel has a rust coating that doesn't flake off and expose a fresh iron which is why it is more weather resistant. I have used vermiculite glued together with high alumina cement but it didn't seem to be very strong and is pobably only good for 600C, I had more success with kaowool fixed with waterglass even that was no where as good as the cast refractory used in the high pressure kiln but we didn't get enough runs to see how that worked long term.

It's not a good idea as the crewcab is 150kg more than standard so even when it's on you will probably only be able to have a driver. Ours is 2.1 tonnes with fuel and no driver and back seats removed. We use 2.4m ramps with the beavertail and that's steep enough. Weight over back axle is fine as it's rated at 2.4tonne.

I'd be interested to see if the wood sells as opposed to being nicked by opportunist drive-bys, it's well presented at roadside. The beech by the White hart had well under 30% diameter of sound wood, I didn't see the other beech or hchestnut.

Given the asymmetry I'd say the wound was old and from a previously neighbouring tree, the dead branches could similarly been shaded out.

I wasn't meaning to imply you were wrong because in english anything used in common parlance seems to be acceptable. To me osier is a willow grown for harvesting small rods of which the most common is viminalis and goat willow is a self seeded weed, never planted to harvest. Sallow may be used differently in different parts of the country and you are more likely to come across the word as an adjective to descibe a pale green sickly color or tone.