openspaceman

Chain Catcher for Stihl 084, 088 - 1124 650 7700 | L&S Engineers WWW.LSENGINEERS.CO.UK Chain catcher Genuine Stihl Part OEM Part No. 1124 650 7700 Suitable for the following Stihl Machines: 084, 088, MS 780... Do you mean this one?

Now that's wrong, brake lights should come on as soon as regeneration slows it more than traditional overrun would to be fair to other road users.

Sorry missed this post but see my reply above and as you note petrol has about 90% of the calories of diesel.

It needs to be a bit more refined than that but I hope someone critiques my figures; a petrol engine at maximum torque is more efficient then a naturally aspirated diesel, except most diesels are now boosted by a turbo and the common rail injection means they burn their fuel much higher up the stroke so they become more efficient. Then cars seldom work in their most efficient range (40% with a big old diesel) . Again IC cars don't recoup energy as they slow down (even though this is actually a small amount in normal driving air and rolling resistance use most energy) and tend to use fuel when stationary. For our purposes we only need to consider the energy input verses mileage. My little diesel fiesta when I got it at 4 years old managed 80mpg 17.6 miles per litre on a long run. As each litre of DERV contains about 10kWh of heat energy that means I did 1.76 miles per kWh of heat. An average car is probably worse than twice that. Your lower figure of 30% heat to electrical power to a consumer is about right for a steam turbine power plant but only coal, nuclear and biomass power plants use them now as far as I know. Most of our electricity comes from combined cycle gas turbines which operate at 60+% heat to electricity, a lot comes from renewables which have no heat input. So even at your lowest generation to consumer figure of 30% the EV doing 4 miles per kWh is doing 1.2mile per kWh of heat and if it is charged off peak it will be having input from a combination of wind and nuclear so even less heat energy and of course much lower cost if you can get an off peak tariff. And that's even before we start looking at the comparative pollution levels from centralised generation versus a diesel engined vehicle.

Ok that's good so charging losses don't skew the mileage. I doubt I will ever have an EV as I have 4 cars sitting here, one classic, one 4wd and mine and my wife's small runabouts. What I would be interested in getting a handle on is the effect of charge efficiency as the battery ages, I'm, guessing internal losses will build up over time so would expect less of the initial electricity put in to be available. I think my home battery is warranted to give 80% of its initial capacity for 8 years but that doesn't tell me what percentage of what I put in I will get out.

So do you measure electricity you put in by your home meter or just use the indicator in the vehicle?

Does it in practice? My daughter is 50 miles away and says she is far too busy to check how much charge it takes and note the mileage. She also got annoyed that I selected a higher regeneration setting when I used it as she was quite happy to use the brakes to slow down. Politics and economics degree don't relate much to real world common sense.

I only just got in and out of a deep puddle in the track yesterday so I'm giving it a rest for a while. Pop in and have a cup of tea if you have time.

It actually shortens the length of chain that can whip by the twice distance between the catcher and the back of the clutch housing. Thanks very much, I was looking in the wrong area and I should be able to fabricate that.

Well I fitted the Stihl bar but without the two bar plates, I had to make a spacer for the rear stud nut from a 14mm AF nut. Now i wonder if a 1980ish Husqvarna 2100 had a chain catcher fitted @adw? I don't feel comfortable using a saw without one nowadays. This saw only got through one bar when i stopped using it as it was damaged and I preferred the 084.

Yes terra preta soils are still valued for their productivity and do contain a lot of char like content but there is still some debate about how they became more fertile than the surrounding land, the chances are the minerals came along with food imported from outside and that ended up dumped on the land. We of course have dumped most of our liquid waste with all it's mineral wealth out to sea via our sewage plants and rivers. The solid waste does get spread back onto the land but often contaminated with heavy metals and persistent organic compounds. UK agricultural soils tend to have a high fertility status , often from bagged fertiliser, so unlikely to show the improvements claimed for poorer soils abroad. Often soils become depleted by the export of a cash crop, taking minerals with it, while biochar does contain much of the minerals in the harvested biomass it cannot make up for what is inherently lacking in the soil. It is claimed it enhances soil microorganisms which could reduce leaching out of minerals. Where it is made from a waste stream part of which would be normally composted ( bearing in mid soil organic matter is an important component of the soil as well as being a vast cycling carbon store) then it fixes carbon that would normally be quickly respired back to the atmosphere. A look at the current carbon cycle shows how the natural photosynthetic activity fixes many times what we put into the atmosphere from fossil fuels but the decay and rotting cycle puts near enough the same back into the atmosphere, a relatively small intervention into this cycle by fixing with biochar, even though we would be talking about billions of tonnes, would begin to redress the balance. Ideally it should be produced where heating is also required rather than the offgas flared off in these open flame curtain devices but...

I'm glad you are on board with the biochar idea but there are plenty of cheaper ways of making it,

Yes but I never got on with the self closing spout so use mine with 2 of the shorter fixed oil spouts.

I was out walking the dogs at dusk last week and came across a girl I recognised, white legs akimbo and a lad struggling to get up off and pull his pants up. I turn a blind eye like Nelson and walk off at an angle, and just hoped precautions had been taken, and isn't life great, but immediately thought of this song, today's events really put it back in perspective. I quite like Frazey Ford's cover but she slurs the words.

Or a hovel, I think the chilterns chair leg bodgers set up their hovels in the beech woods there.

I can't quite understand what you are saying here. I'm guessing just a method to increase the depth of the hinge so as to extend the length it bends over, hinge in grey in my sketch.

I associate fascines with bundles to cross ditches, it comes from the same root as fascist, Mussolini termed it when he held up a twig and broke it then picked up a bindle and couldn't break it, a form of united we stand. Faggot is also a ball of food with meat. Faggots, pimps and bavins were all coppice products.

I had to go back to this post to see where the dogs came in. That is a proper felling axe the head is long to reach in to a narrow gob without wasting timber.

I thought charity shops paid 15% of the normal rates and of course it is also their landlords that benefit also, else they would be liable for the full rate on an empty shop, can't answer the rest.

I'm glad no one told the firm that retro fitted mine that. While I might be tempted to add battery capacity overall the integrated package with 7 year warranty is probably worth the extra few hundred to me.

I had 5% on my invoice. BTW I see 48V 5kWh lithium phosphate server rack batteries with Battery Management System inbuilt can be had for $1700 in USA which could be interesting for a DC system using the current grid tied inverter. My 52V 6kWh battery and dedicated inverter was £3.4k but will have more inherent conversion losses, I chose this route to take advantage of cheap off peak electricity in winter but that hasn't been available. Making use of battery stored solar energy has achieve one whole day without imports so far and even today the battery is sitting 33% charged which will halve the bill.

Of course I'm still left with the dilemma of wanting to help people down on their luck but no knowing who to trust to actually give aid.

It's a very real problem, we may want to help financially to sectors where the government has failed to address problems but don't want to see money frittered away in "administration" of the charity. In the past most charities were unincorporated, often run by volunteers and without employees, the asset holders were the volunteer trustees who were personally liable for the charity's doings. Trustees generally could not charge for services to the charity, although "professional" services were excepted, so solicitors and bankers tended to like serving as trustees. Now most are companies by guarantee and have the same structure as any company but without the shareholding. The trustees (often elected by a eclectic membership) are no longer liable for debts and form themselves into a board like any other company, these trustees then elect a chairman who wields a lot of power in steering the charity. Meetings are poorly minuted and a cabal forms round the chairman which makes any decisions, dissenters are sidelined by being excluded from sub committees. Our local little charity came into a windfall and immediately attracted such a group, became incorporated and employed one of the trustees in such a manner (in fact unlawfully but the charity commissioners turned a blind eye). Then having appointed one of their number as a "manager" they decide his pay should come into line with equivalent managers in the private sector, so his salary and emoluments double withing the first year of service.

Shame, worth a try though. What do you think went wrong?

I'm no expert and I think I could almost count how many plug holes I have done on the fingers of my hand and I think only three on chainsaws. I only use the stepped reamer taps for spark plugs but drills and taps for smaller threads,