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RE: 2019–20 CORONAVIRUS PANDEMIC POSTINGS
Thank you.
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MEXICOWANDERER
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05/10/21 04:30pm |
Around the Campfire
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RE: Honda EU2000i at high altitude
Having serviced everything from Honda 600s to Wisconsin V4 37.5 horsepower prime movers at altitudes to 11,200 ft. (Saddlebag Lake) my opinion about the necessity of reducing jet orifices is not glowing.
I had difficulty in discerning any difference in power. No reduction in exhaust smoke. But I did re-set to reduce oil contamination and improve spark plug life.
Using a "scale" of total improvements with prime movers with adjustable initial timing, the aggregate total of timing and jets was estimated to be 97% timing and 3% re-jetting. On a high altitude only service pickup I fitted 12.5 to 1 compression pistons and that modification amounted to at best only a modest increase in power. By far turbocharging with a waste gate or supercharging made significant power gains.
As a side note I successfully was able to use regular gasoline in the service truck.
I wish you the best of luck
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MEXICOWANDERER
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05/09/21 07:05pm |
Tech Issues
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RE: 2019–20 CORONAVIRUS PANDEMIC POSTINGS
A question:
In the confusion of data and sensational news generated headlines...
Is the bottom line the mutant COVID-19 virus strains do not materially affect the percentage of fully immunized people that need to be hospitalized with threatening COVID-19 symptoms?
Or to put it inversely, the new mutant strains only affect the number of breakout patients? Testing positive with mild or no symptoms.
Thank you for sharing.
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MEXICOWANDERER
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05/09/21 01:44pm |
Around the Campfire
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RE: 1993 Damon Intruder/P30 454 Overheating
I had to REMOVE the fan on a Dodge then attempt to drive it at 50 mph right away to isolate stuff. The 440L3 immediately dropped from 260F to 150F.
Just for note:
Behind one of those spinning giant air turbine windmills a 40 mph wind calms to the point where a flicked butane cigarette lighter burns with a steady flame. This is just how much "spinning blades" can block airflow.
I have a piece of snot 25-year-old low-miles K car. It was prone to drive hot. I replaced the worn out electric fan motor after 80,000 miles with an OEM used one. Then after a year I got nervous and replaced the one with a 4-seasons electric motor that was noticeably heavier. The man who did the work and I agreed that the new motor spun the fan noticeably faster because the breeze underhood seemed to be stronger. It was a subtle increase though.
Driving the vehicle the actual temperature difference is dramatic. Chrysler decided that a ONE ROW radiator was enough with no possible substitutions. So the fan is VITAL. Only driving 35-50 mph on a mild or cooler day will keep the engine from boiling over without a fan. That all so subtle airflow increase decreased engine coolant temperature by twenty to thirty degrees on a warm day. Since I had purchased the car when it had 18,000 miles on the odometer, and it had the overheating tendency then, it eliminates the idea of age or maintenance influencing things. By the way HOT means boiling over with engine knocking noises when shut off.
The Dodge owner became enraged at the hydraulic fan malfunction. So he eliminated it. He later reported no decrease in fuel mileage. What an expensive odyssey.
Quicksilver has a hydraulic driven Horton 7 bladed fan, a radiator 30% larger in area. Twice the tube count per inch, half again as many fins per inch and a 3 row tube to 5 rows tubes radiator. It survived a 12-hour day flat towing a loaded 1 ton pickup truck in temperatures to 122F. I didn't fare nearly as well. I had traded an LA radiator shop for repairing a Cummins Onan 700 Kw generator.
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MEXICOWANDERER
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05/09/21 01:30pm |
Tech Issues
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RE: One Great Big EV Thread
Mexico and Venezuela must be refining their crude in Texas before they can export their finished products to the US.
The Shell Oil / Pemex refinery in Deer Park TX sends all but their heavy products back to (Villahermosa) Mexico. Heavy products mean tar, pitch and asphalt.
Mexico imports more than 50% of their fuel. Gasoline, aviation gasoline and liquified petroleum gas. Every last drop of ULSD called UBA, comes from the United States or Japan. It is common to find Japanese diesel with no detectable sulfur content. O ppm.
Use 700 kWh monthly for four months, and you will find the power costing fifty cents per kilowatt-hour. Generation kWh-per-household, plant CAPACITY is ONE FIFTH that of the USA. Overload the grid and the distribution grid goes dark.
The point I am pleading here is if the USA hopes to clean up North American air it cannot ignore Mexico. Sarcastically, instead of funding millions of dollars for Pakistani dance interpretation, pay the FLUOR CORPORATION to design a new ultra low sulfur fuel refinery.
In a country where a fifteen thousand dollar automobile is a sign of wealthy extravagance, there just isn't enough funding to do this without help. Gang Canada, the USA, France, Germany and Great Britain together to build a gigantic refinery. Get Mexico to commit absolute fair share funding for the project that they cannot weasel out of.
But to go electric photo panels, all electric houses, cars trains and trucks next door to a source of pollution 100x worse than the US in the sixties is absurd folly.
A ten thousand dollar carbon fiber racing bicycle in the Congo.
Only then would I start believing in electrical green.
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MEXICOWANDERER
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05/08/21 01:10pm |
Around the Campfire
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RE: 12v to 6v review?
OK I'll lower the bridge to fit the ship...
When it's too hot to park in the sun, it means for you. The panels can care less. Of course someone *could* insist on 135 degrees inside just because the batteries wouldn't charge if he didn't. This is referred to as prettyfartsmeller planning.
There is zero comparison between golf car battery construction and automotive battery with rope handles and weird terminals construction. I attempted to describe exactly why this is true. But once again the bridge seemingly was too high for the boat? Pull all the books on celestial mechanics and phasor algebra off the shelf?
I am a Battery Council International certified design engineer the last I checked. That should satisfy any "you designed" questions. Membership in the BCI is expensive. So I let it lapse. It wasn't paying me a nickel.
One member posted there was "no proof" that there was a difference between golf car and automotive battery lifespan. There is a pregnant pause after that statement.
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MEXICOWANDERER
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05/07/21 04:18pm |
Tech Issues
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RE: One Great Big EV Thread
The United States is doing double-jointed elastics to go 100% electric while down here about .001% of new cars are battery powered. Outside the very largest population centers you might as well own a fusion powered vehicle because it isn't going anywhere.
It gets worse. Mexican refined gasoline and diesel is high sulfur. My little Mitsubishi engine pukes and convulses on Mexican refined Magna gasoline. The diesel runs great but it is 100+ ppm sulfur.
So when USA hydrocarbon production scales back, the amount of emissions here will quintuple. There is absolutely zero chance CFE can increase production and distribution to meet more than two or three percent increase in kWh demand. Fully 45% of rural power generation is done by locomotive engine powered generators authorized to use 800 ppm high sulfur diesel.
My fear is this country is going to be forced to turn to China to build an ultra modern refinery that produces 5ppm diesel and 2 ppm gasoline. Both are new standards.
The concept reminds me of a man holding a fire extinguisher sticking his tongue out at an approaching forest fire.
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MEXICOWANDERER
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05/07/21 01:47pm |
Around the Campfire
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RE: advisability to turn off battery periodically
WFCO's cost to OEM is 45% that if you try and buy a new one.
The company hasn't a clue how to heatsink FETs and rectifiers. Who else would use a plain block of quarter inch thick aluminum as a heat sink? Or place inferior low temperature capacitors adjacent to intense heat radiating ceramic resistors? Another laugh is the placement of a "cooling" fan all the way across the device where zero air reaches the family jewels?
This is the YUGO of converters. Or Renault Dauphine. I won't even get into the control circuitry. It is too nauseating.
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MEXICOWANDERER
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05/07/21 01:29pm |
Tech Issues
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RE: advisability to turn off battery periodically
Just as a sample of perspective of the meaning of a high duration lead acid battery...
My 2 volts weigh 667 pounds each x2 plus steel container.
They have .300" thick positive plates
1.260 tropical blend adjusted electrolyte.
And there are 12 containers 2 batteries each.
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MEXICOWANDERER
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05/06/21 05:28pm |
Tech Issues
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Lord of The Rings Runaround?
With my bad internet access I think I understand 1% of what I need to know in order to access this (Amazon?) presentation. I will try my best to guesstimate what I need to do, and if I'm derailed, jump in with both feet, please.
I have a computer and ISP in México. I have had few issues watching movies on You Tube.
I am a Amazon Prime USA member
I understand (?) I will need a VPN anonymous site to watch the proposed presentation from outside the USA?
The broadcast of the LOTR will be once a week? For an Hour?
Can I adjust the broadcast time? Say to seven or 8PM? Or to the next morning?
Will this be a monthly or pay per view?
Thank you all in advance.
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MEXICOWANDERER
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05/05/21 04:01pm |
Around the Campfire
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RE: Charging LFP battery from AC-DC unit
Landy used some of my suggestions on his Meanwell. The chokes develop the most heat. A 600 watt uses a blow out fan but a 80mm suck in fan in front connected to the original fan electrically lowers internal temps 40°F. I have a 150 watt 36 volt meanwell that warms up too much on a 50 watt LED load. No fan.
I original 36-amp Megawatt was souped up to provide 56 amps continuous at 15.5 volts. It's on it's 4th year. Nicknamed the HYPERWATT. The Delta power distribution on pos and neg are similarly inversed into 3 into 8 gauge power wires.
The 14 amp is a garden hose on a fire truck.
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MEXICOWANDERER
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05/05/21 10:14am |
Tech Issues
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RE: Charging LFP battery from AC-DC unit
Does your meanwell have a fan?
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MEXICOWANDERER
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05/05/21 12:46am |
Tech Issues
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RE: Moderna vaccine (Personal experiences)
Just one small observation. I was in the USA yesterday. I picked up my Rx load from the WalMart pharmacy. Alongside the pharmacy counters was a lone door with spaced folding chairs outside. I noticed a sign.
15 MINUTE WAIT OBLIGATORY
Curiosity shot up. Posted on the door a sign read. COVID INOCUATIONS DROP IN NO APPOINTMENT NEEDED. FREE. NO COST.
1800 hours not a person to be seen.
Wish I hadn't got the Chinese jab.
WalMart Saturn Blvd Imperial Beach CA.
Near San Diego.
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MEXICOWANDERER
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05/04/21 07:26pm |
Around the Campfire
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RE: 12v to 6v review?
If automotive batteries were sufficient, golf cars, electric forklifts and submarines would have been powered by car batteries.
I'll repeat it. A group 27 battery was fitted with GC220 plates. It had 220 CCA and died from acid starvation. Designer: Me. Vendor ABC BATTERY Los Angeles.
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MEXICOWANDERER
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05/04/21 07:06pm |
Tech Issues
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RE: How to boost charge AGM batteries in storage?
Stored
Cycled
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MEXICOWANDERER
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05/01/21 12:44pm |
Tech Issues
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RE: How to boost charge AGM batteries in storage?
Maintenance not in use.
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MEXICOWANDERER
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04/30/21 09:04pm |
Tech Issues
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RE: How to boost charge AGM batteries in storage?
Using kWh measurement, recharging at less than 20% A/H capacity from 50% level of charge progressively deteriorates the final AH storage capacity of the Lifeline. Like any other electrochemical reaction, the effect is time reactionary. The longer the accumulator stays discharged and the slower the recharge x cumulative number the greater the storage degradation. In effect - my stored 31 would be affected more by slow recharge than a similar unit discharged for a day or week.
Weekly application of temp compensated 14.4 volts constant for 2 hours each would approach ideal numbers. Temp compensation would be important.
But for my unit I have decided that 8 hours at 14.4 voltage saturated (constant voltage) would be ideal. The battery may start out at 80 amperes acceptance. Such high amperage in excess of 20.0 (It's a 100 amp hour 31) is not necessary.
Any arguments against this protocol would have to contain explanation of its service life and ultimate low loss of capacity, please.
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MEXICOWANDERER
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04/30/21 05:20pm |
Tech Issues
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RE: How to boost charge AGM batteries in storage?
This is a key factor in determining whether a 20% of amp hour recharge becomes mandatory...
AGM batteries tend to demand 20% amperage the further they are discharged.
For maintenance purposes if power is available try to keep them from 90% to 100%.
At 50% fill, the 20% rule applies strongly.
I've noticed with my (6) Lifelines that the greater the amperage seen at a 14.4 volt limit the faster they will pass through the final 5% of charging. Meaning a 50 ampere initial charge rate improves the speed of the final 5% by more than 10% Less time. I haven't measured it because it is a moot point. Recharging a 50% discharged Lifeline slows down the final 5% to an agonizingly slow pace.
The 20% recharge factor may be one of the top negative issues with absorbed glass mat technology. The final 5% capacity requirement doesn't help it's reputation either. Raising voltage from 14.4 to say 15.0 does not aid much to recover time loss either. It gives me thought of using a wet battery and a DC to DC booster to finish laggard AGMs.
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MEXICOWANDERER
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04/30/21 03:56pm |
Tech Issues
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RE: 12v to 6v review?
Then comes L-16's and finally 2-volt cells. In one way or another all choices involve compromises and it's the consumers responsibility to learn those compromises then make a choice of the least evil shortcoming.
Allow me an example. My car needed a battery. LTH sells 65 amp hour group 34 batteries here for about $90 including tax in Costco. Costco USA sells 80 amp hour batteries for a hundred dollars plus tax. Definitely a heavier weighing battery. The kicker (for me) is an 18 month free guarantee in Mexico and a 48 month free guarantee in the USA.
The only 6 cell battery I'm aware of in an automotive group size that has golf car type cell construction is a Rolls and Surrete. Folks who wish to refer to accurate information regarding wet batteries should download the free Rolls maintenance manual off the web. But keep in mind it is for golf car and heavier recyclable batteries.
When properly cared for good quality batteries give phenomenal life.
And remember when it's too hot to park in the sun, roof top solar panels are useless.
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MEXICOWANDERER
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04/29/21 11:30pm |
Tech Issues
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RE: Moderna vaccine (Personal experiences)
Listening to a sixty year old song titled POISON IVY
Makes me laugh. I think it's available on You Tube
It's not "exactly" about COVID but it'll do.
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MEXICOWANDERER
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04/29/21 01:29pm |
Around the Campfire
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